patch-5.12-xenon0.20.diff

diff -NurpP --minimal linux-5.12/arch/powerpc/Kconfig.debug linux-5.12-xenon/arch/powerpc/Kconfig.debug
--- linux-5.12/arch/powerpc/Kconfig.debug	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/Kconfig.debug	2021-06-01 21:43:02.547664369 +0200
@@ -257,6 +257,14 @@ config PPC_EARLY_DEBUG_PS3GELIC
 	  Select this to enable early debugging for the PlayStation3 via
 	  UDP broadcasts sent out through the Ethernet port.
 
+config PPC_EARLY_DEBUG_XENON
+	bool "Early debugging through Xenos framebuffer"
+	depends on PPC_XENON
+	select XENON_UDBG
+	help
+	  Select this to enable early debugging for the Xenon via
+	  early framebuffer support.
+
 config PPC_EARLY_DEBUG_OPAL_RAW
 	bool "OPAL raw console"
 	depends on HVC_OPAL
diff -NurpP --minimal linux-5.12/arch/powerpc/boot/.gitignore linux-5.12-xenon/arch/powerpc/boot/.gitignore
--- linux-5.12/arch/powerpc/boot/.gitignore	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/boot/.gitignore	2021-06-01 21:43:02.547664369 +0200
@@ -33,6 +33,7 @@ zImage.maple
 zImage.miboot
 zImage.pmac
 zImage.pseries
+zImage.xenon
 zconf.h
 zlib.h
 zutil.h
diff -NurpP --minimal linux-5.12/arch/powerpc/boot/Makefile linux-5.12-xenon/arch/powerpc/boot/Makefile
--- linux-5.12/arch/powerpc/boot/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/boot/Makefile	2021-06-01 21:43:02.547664369 +0200
@@ -264,6 +264,7 @@ image-$(CONFIG_PPC_POWERNV)		+= zImage.p
 image-$(CONFIG_PPC_MAPLE)		+= zImage.maple
 image-$(CONFIG_PPC_IBM_CELL_BLADE)	+= zImage.pseries
 image-$(CONFIG_PPC_PS3)			+= dtbImage.ps3
+image-$(CONFIG_PPC_XENON)		+= zImage.xenon
 image-$(CONFIG_PPC_CHRP)		+= zImage.chrp
 image-$(CONFIG_PPC_EFIKA)		+= zImage.chrp
 image-$(CONFIG_PPC_PMAC)		+= zImage.pmac
@@ -399,6 +400,11 @@ $(obj)/dtbImage.%: vmlinux $(wrapperbits
 $(obj)/vmlinux.strip: vmlinux
 	$(STRIP) -s -R .comment $< -o $@
 
+$(obj)/zImage.xenon: $(obj)/vmlinux.strip
+	@$(OBJCOPY) -O elf32-powerpc $< $@
+	@test -e /mnt/e/Misc/tftpd64 && \
+	   cp -f $@ /mnt/e/Misc/tftpd64/vmlinux || true
+
 $(obj)/uImage: vmlinux $(wrapperbits) FORCE
 	$(call if_changed,wrap,uboot)
 
diff -NurpP --minimal linux-5.12/arch/powerpc/boot/dts/xenon.dts linux-5.12-xenon/arch/powerpc/boot/dts/xenon.dts
--- linux-5.12/arch/powerpc/boot/dts/xenon.dts	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/boot/dts/xenon.dts	2021-06-01 21:43:02.547664369 +0200
@@ -0,0 +1,131 @@
+/*
+ * xenon.dts - Xbox360 Game Console device tree.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+/dts-v1/;
+
+/ {
+	model = "Xenon Game Console";
+	compatible = "XENON";
+	#address-cells = <2>;
+	#size-cells = <1>;
+
+	/*
+     * Bootargs will be created here, as well as initrd properties if relevant
+     */
+	chosen {
+		linux,platform = <0x00000801>;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x00000000 0x1e000000>;
+	};
+
+	cpus {
+		#cpus = <1>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		Xenon,PPE@0 {
+			device_type = "cpu";
+			linux,boot-cpu;
+			reg = <0>;
+			ibm,ppc-interrupt-server#s = <0 1>;
+			timebase-frequency = <0x2FAF080>; // 50 MHz
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <0x80>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <0x80>;
+
+					/* this must be configured with regard to the HID6:LB value */
+			ibm,segment-page-sizes = <
+				0xC   0     1 0xc   0     // 4k page
+				0x10  0x100 1 0x10 00     // 64k pages
+				0x18  0x110 1 0x18 01     // 16M pages
+			>;
+		};
+		Xenon,PPE@1 {
+			device_type = "cpu";
+			reg = <2>;
+			ibm,ppc-interrupt-server#s = <2 3>;
+			timebase-frequency = <0x2FAF080>;
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <0x80>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <0x80>;
+		};
+		Xenon,PPE@2 {
+			device_type = "cpu";
+			reg = <4>;
+			ibm,ppc-interrupt-server#s = <4 5>;
+			timebase-frequency = <0x2FAF080>;
+			i-cache-size = <0x8000>;
+			i-cache-line-size = <0x80>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <0x80>;
+		};
+	};
+
+	pci {
+		compatible = "xenon";
+		device_type = "pci";
+		#address-cells = <3>;  // phy up, mid, low
+		#size-cells = <1>;
+		#interrupt-cells = <1>;
+		
+		interrupt-parent = <0x40000>;
+		// interrupts = <18 2>;
+		interrupt-map-mask = <0xf900 0 0 0>; // type, lower, upper, irq
+
+		interrupt-map = <
+			0x0000 0 0 0  0x40000 0x40  // XMA
+			0x0800 0 0 0  0x40000 0x24  // SATA cdrom
+			0x1000 0 0 0  0x40000 0x20  // SATA disk
+			0x2000 0 0 0  0x40000 0x2c  // USB OHCI #1
+			0x2100 0 0 0  0x40000 0x30  // USB EHCI #1
+			0x2800 0 0 0  0x40000 0x34  // USB OHCI #2
+			0x2900 0 0 0  0x40000 0x38  // USB EHCI #2
+			0x3800 0 0 0  0x40000 0x4c  // Enet
+			0x4000 0 0 0  0x40000 0x18  // Flash
+			0x4800 0 0 0  0x40000 0x44  // audio out
+			0x5000 0 0 0  0x40000 0x14  // SMM, GPIO, ...
+			0x7800 0 0 0  0x40000 0x58  // Xenos
+		>;
+
+		bus-range = <0 0>;
+		ranges = <
+			0x02000000 0x00000000 0x80000000 0x00000200 0x80000000 0x80000000 // PCI space at 80000000 is mapped to 200 80000000
+			0x02000000 0x00000000 0x00000000 0x00000000 0x00000000 0x20000000 // RAM is 1:1 mapped
+		>;
+	};
+
+	interrupt-controller {
+		compatible = "xenon";
+		linux,phandle = <0x40000>;
+		interrupt-controller;
+		#address-cells = <0>;
+		#interrupt-cells = <1>;
+		built-in;
+		reg = <0x00000200 0x00050000 0x6000>;
+		interrupts = <
+			0x7c 0x78 0x74 0x70 0x6c 0x68 0x64 0x60
+			0x5c 0x58 0x54 0x50 0x4c 0x48 0x44 0x40
+			0x3c 0x38 0x34 0x30 0x2c 0x28 0x24 0x20
+			0x1c 0x18 0x14 0x10 0x0c 0x08 0x04
+		>;
+	};
+};
diff -NurpP --minimal linux-5.12/arch/powerpc/include/asm/cputable.h linux-5.12-xenon/arch/powerpc/include/asm/cputable.h
--- linux-5.12/arch/powerpc/include/asm/cputable.h	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/include/asm/cputable.h	2021-06-01 21:43:02.547664369 +0200
@@ -456,6 +456,10 @@ static inline void cpu_feature_keys_init
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
 	    CPU_FTR_PAUSE_ZERO  | CPU_FTR_CELL_TB_BUG | CPU_FTR_CP_USE_DCBTZ | \
 	    CPU_FTR_UNALIGNED_LD_STD | CPU_FTR_DABRX)
+#define CPU_FTRS_XENON (CPU_FTR_LWSYNC | \
+	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
+	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
+	    CPU_FTR_CELL_TB_BUG )
 #define CPU_FTRS_PA6T (CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP | \
 	    CPU_FTR_PURR | CPU_FTR_REAL_LE | CPU_FTR_DABRX)
@@ -513,6 +517,9 @@ enum {
 #ifdef CONFIG_PPC_E500MC
 	    CPU_FTRS_E500MC | CPU_FTRS_E5500 | CPU_FTRS_E6500 |
 #endif
+#ifdef CONFIG_PPC_XENON
+		CPU_FTRS_XENON |
+#endif
 	    0,
 };
 #endif /* __powerpc64__ */
diff -NurpP --minimal linux-5.12/arch/powerpc/include/asm/mmu.h linux-5.12-xenon/arch/powerpc/include/asm/mmu.h
--- linux-5.12/arch/powerpc/include/asm/mmu.h	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/include/asm/mmu.h	2021-06-01 21:43:02.547664369 +0200
@@ -141,6 +141,8 @@
 #define MMU_FTRS_POWER10	MMU_FTRS_POWER6
 #define MMU_FTRS_CELL		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
 				MMU_FTR_CI_LARGE_PAGE
+#define MMU_FTRS_XENON		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
+				MMU_FTR_CI_LARGE_PAGE
 #define MMU_FTRS_PA6T		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
 				MMU_FTR_CI_LARGE_PAGE | MMU_FTR_NO_SLBIE_B
 #ifndef __ASSEMBLY__
diff -NurpP --minimal linux-5.12/arch/powerpc/include/asm/udbg.h linux-5.12-xenon/arch/powerpc/include/asm/udbg.h
--- linux-5.12/arch/powerpc/include/asm/udbg.h	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/include/asm/udbg.h	2021-06-01 21:43:02.547664369 +0200
@@ -53,6 +53,7 @@ extern void __init udbg_init_ehv_bc(void
 extern void __init udbg_init_ps3gelic(void);
 extern void __init udbg_init_debug_opal_raw(void);
 extern void __init udbg_init_debug_opal_hvsi(void);
+extern void __init udbg_init_xenon(void);
 
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_UDBG_H */
diff -NurpP --minimal linux-5.12/arch/powerpc/kernel/cputable.c linux-5.12-xenon/arch/powerpc/kernel/cputable.c
--- linux-5.12/arch/powerpc/kernel/cputable.c	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/kernel/cputable.c	2021-06-01 21:43:02.551664435 +0200
@@ -539,6 +539,18 @@ static struct cpu_spec __initdata cpu_sp
 		.oprofile_cpu_type	= "ppc64/cell-be",
 		.platform		= "ppc-cell-be",
 	},
+	{	/* Xenon */
+		.pvr_mask		= 0xffff0000,
+		.pvr_value		= 0x00710000,
+		.cpu_name		= "Xenon",
+		.cpu_features		= CPU_FTRS_XENON,
+		.cpu_user_features	= COMMON_USER_PPC64 | PPC_FEATURE_HAS_ALTIVEC_COMP |
+			PPC_FEATURE_SMT,
+		.mmu_features		= MMU_FTRS_XENON,
+		.icache_bsize		= 128,
+		.dcache_bsize		= 128,
+		.platform		= "xenon",
+	},
 	{	/* PA Semi PA6T */
 		.pvr_mask		= 0x7fff0000,
 		.pvr_value		= 0x00900000,
diff -NurpP --minimal linux-5.12/arch/powerpc/kernel/misc_64.S linux-5.12-xenon/arch/powerpc/kernel/misc_64.S
--- linux-5.12/arch/powerpc/kernel/misc_64.S	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/kernel/misc_64.S	2021-06-01 21:43:02.551664435 +0200
@@ -95,7 +95,7 @@ _GLOBAL(rmci_off)
 	blr
 #endif /* CONFIG_PPC_EARLY_DEBUG_BOOTX */
 
-#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
+#if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) || defined(CONFIG_PPC_XENON)
 
 /*
  * Do an IO access in real mode
diff -NurpP --minimal linux-5.12/arch/powerpc/kernel/prom.c linux-5.12-xenon/arch/powerpc/kernel/prom.c
--- linux-5.12/arch/powerpc/kernel/prom.c	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/kernel/prom.c	2021-06-01 21:43:02.551664435 +0200
@@ -326,6 +326,7 @@ static int __init early_init_dt_scan_cpu
 		intserv = of_get_flat_dt_prop(node, "reg", &len);
 
 	nthreads = len / sizeof(int);
+	DBG("%s with %d threads \"%s\" v%d", type, nthreads, uname, fdt_version(initial_boot_params));
 
 	/*
 	 * Now see if any of these threads match our boot cpu.
diff -NurpP --minimal linux-5.12/arch/powerpc/kernel/udbg.c linux-5.12-xenon/arch/powerpc/kernel/udbg.c
--- linux-5.12/arch/powerpc/kernel/udbg.c	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/kernel/udbg.c	2021-06-01 21:43:02.551664435 +0200
@@ -67,6 +67,8 @@ void __init udbg_early_init(void)
 	udbg_init_debug_opal_raw();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_OPAL_HVSI)
 	udbg_init_debug_opal_hvsi();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_XENON)
+	udbg_init_xenon();
 #endif
 
 #ifdef CONFIG_PPC_EARLY_DEBUG
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/Kconfig linux-5.12-xenon/arch/powerpc/platforms/Kconfig
--- linux-5.12/arch/powerpc/platforms/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/platforms/Kconfig	2021-06-01 21:43:02.551664435 +0200
@@ -20,6 +20,7 @@ source "arch/powerpc/platforms/embedded6
 source "arch/powerpc/platforms/44x/Kconfig"
 source "arch/powerpc/platforms/40x/Kconfig"
 source "arch/powerpc/platforms/amigaone/Kconfig"
+source "arch/powerpc/platforms/xenon/Kconfig"
 
 config KVM_GUEST
 	bool "KVM Guest support"
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/Makefile linux-5.12-xenon/arch/powerpc/platforms/Makefile
--- linux-5.12/arch/powerpc/platforms/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/arch/powerpc/platforms/Makefile	2021-06-01 21:43:02.551664435 +0200
@@ -20,5 +20,6 @@ obj-$(CONFIG_PPC_MAPLE)		+= maple/
 obj-$(CONFIG_PPC_PASEMI)	+= pasemi/
 obj-$(CONFIG_PPC_CELL)		+= cell/
 obj-$(CONFIG_PPC_PS3)		+= ps3/
+obj-$(CONFIG_PPC_XENON)		+= xenon/
 obj-$(CONFIG_EMBEDDED6xx)	+= embedded6xx/
 obj-$(CONFIG_AMIGAONE)		+= amigaone/
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/Kconfig linux-5.12-xenon/arch/powerpc/platforms/xenon/Kconfig
--- linux-5.12/arch/powerpc/platforms/xenon/Kconfig	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/Kconfig	2021-06-01 21:43:02.551664435 +0200
@@ -0,0 +1,18 @@
+config PPC_XENON
+	bool "Xenon"
+	depends on PPC64
+	select PPC_NATIVE
+	select DMA_VIRT_OPS
+	select HAVE_PCI
+	default y
+	help
+	  This option enables support for the Xbox 360 game console
+	  without a hypervisor.
+
+config XENON_UDBG
+	bool "Xenon Early Console"
+	depends on PPC_XENON
+	select FONT_SUPPORT
+	help
+		This option enables early debugging over ethernet for the
+		Xenon platform.
\ No newline at end of file
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/Makefile linux-5.12-xenon/arch/powerpc/platforms/xenon/Makefile
--- linux-5.12/arch/powerpc/platforms/xenon/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/Makefile	2021-06-01 21:43:02.551664435 +0200
@@ -0,0 +1,4 @@
+obj-y += setup.o interrupt.o pci.o time.o hardware.o
+
+obj-$(CONFIG_SMP) += smp.o
+obj-$(CONFIG_XENON_UDBG) += xe_udbg.o
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/hardware.c linux-5.12-xenon/arch/powerpc/platforms/xenon/hardware.c
--- linux-5.12/arch/powerpc/platforms/xenon/hardware.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/hardware.c	2021-06-01 21:43:02.551664435 +0200
@@ -0,0 +1,37 @@
+/*
+ *  Xenon hardware related routines.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+
+static int __init xenon_hwmon_init(void)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_register_simple("xenon-hwmon", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return 0;
+}
+
+module_init(xenon_hwmon_init);
+
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/interrupt.c linux-5.12-xenon/arch/powerpc/platforms/xenon/interrupt.c
--- linux-5.12/arch/powerpc/platforms/xenon/interrupt.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/interrupt.c	2021-06-01 21:43:02.551664435 +0200
@@ -0,0 +1,372 @@
+/*
+ * Xenon interrupt controller,
+ *
+ * Maintained by: Felix Domke <tmbinc@elitedvb.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License v2
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/cpumask.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqnr.h>
+#include <linux/module.h>
+#include <linux/percpu.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/irqdesc.h>
+
+#ifdef CONFIG_SMP
+#include <linux/smp.h>
+#endif
+
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/prom.h>
+#include <asm/ptrace.h>
+#include <asm/machdep.h>
+#include <asm/udbg.h>
+
+#include "interrupt.h"
+
+#define DEBUG
+#if defined(DEBUG)
+#define DBG udbg_printf
+#else
+#define DBG pr_debug
+#endif
+
+static void *iic_base, // 00050000
+	*bridge_base, // ea000000
+	*biu,         // e1000000
+	*graphics;    // ec800000
+static struct irq_domain *host;
+
+#define XENON_NR_IRQS 128
+
+#define PRIO_IPI_4       0x08
+#define PRIO_IPI_3       0x10
+#define PRIO_SMM         0x14
+#define PRIO_SFCX        0x18
+#define PRIO_SATA_HDD    0x20
+#define PRIO_SATA_CDROM  0x24
+#define PRIO_OHCI_0      0x2C
+#define PRIO_EHCI_0      0x30
+#define PRIO_OHCI_1      0x34
+#define PRIO_EHCI_1      0x38
+#define PRIO_XMA         0x40
+#define PRIO_AUDIO       0x44
+#define PRIO_ENET        0x4C
+#define PRIO_XPS         0x54
+#define PRIO_GRAPHICS    0x58
+#define PRIO_PROFILER    0x60
+#define PRIO_BIU         0x64
+#define PRIO_IOC         0x68
+#define PRIO_FSB         0x6C
+#define PRIO_IPI_2       0x70
+#define PRIO_CLOCK       0x74
+#define PRIO_IPI_1       0x78
+#define PRIO_NONE		 0x7C
+
+/*
+ * Important interrupt registers (per CPU):
+ *
+ * 0x00: CPU_WHOAMI
+ * 0x08: CPU_CURRENT_TASK_PRI: only receive interrupts higher than this
+ * 0x10: CPU_IPI_DISPATCH_0
+ * 0x18: unused(?)
+ * 0x20: ? (read changes)
+ * 0x28: ? (read changes)
+ * 0x30: ? (read changes)
+ * 0x38: same value as 0x20(?) (read changes)
+ * 0x40: unused(?)
+ * 0x48: unused(?)
+ * 0x50: ACK
+ * 0x58: ACK + set CPU_CURRENT_TASK_PRI
+ * 0x60: EOI
+ * 0x68: EOI + set CPU_CURRENT_TASK_PRI
+ * 0x70: interrupt MCACK? mask? max interrupt? CPU dies when writing stuff that isn't 0x7C
+ * 0xF0: ?
+ */
+
+/* CPU IRQ -> bridge (PCI) IRQ */
+static const uint8_t xenon_pci_irq_map[] = {
+	/* 0x00             */ -1,
+	/* 0x04             */ -1,
+	/* PRIO_IPI_4       */ -1,
+	/* 0x0C             */ -1,
+	/* PRIO_IPI_3       */ -1,
+	/* PRIO_SMM         */ 3,
+	/* PRIO_SFCX        */ 13,
+	/* 0x1C             */ -1,
+	/* PRIO_SATA_HDD    */ 2,
+	/* PRIO_SATA_CDROM  */ 1,
+	/* 0x28             */ -1,
+	/* PRIO_OHCI_0      */ 4,
+	/* PRIO_EHCI_0      */ 5,
+	/* PRIO_OHCI_1      */ 6,
+	/* PRIO_EHCI_1      */ 7,
+	/* 0x3C             */ -1,
+	/* PRIO_XMA         */ 11,
+	/* PRIO_AUDIO       */ 12,
+	/* 0x48             */ -1,
+	/* PRIO_ENET        */ 10,
+	/* 0x50             */ -1,
+	/* PRIO_XPS         */ -1,
+	/* PRIO_GRAPHICS    */ -1,
+	/* 0x5C             */ -1,
+	/* PRIO_PROFILER    */ -1,
+	/* PRIO_BIU         */ -1,
+	/* PRIO_IOC         */ -1,
+	/* PRIO_FSB         */ -1,
+	/* PRIO_IPI_2       */ -1,
+	/* PRIO_CLOCK       */ 0,
+	/* PRIO_IPI_1       */ -1,
+	/* PRIO_NONE        */ -1,
+};
+
+static void disconnect_pci_irq(int prio)
+{
+	int i;
+
+	printk(KERN_INFO "xenon IIC: disconnect irq 0x%.2X\n", prio);
+
+	i = xenon_pci_irq_map[prio >> 2];
+	if (i != -1) {
+		writel(0, bridge_base + 0x10 + i * 4);
+	}
+}
+
+/* connects a PCI IRQ to a CPU */
+static void connect_pci_irq(int prio, int target_cpu)
+{
+	uint8_t i;
+
+	printk(KERN_INFO "xenon IIC: connect irq 0x%.2X\n", prio);
+
+	i = xenon_pci_irq_map[prio >> 2];
+	if (i != -1) {
+		/*
+		 * Bits:
+		 * 0x00800000 = enable(?)
+		 * 0x00200000 = latched
+		 * 0x00003F00 = cpu target
+		 * 0x00000080 = level sensitive
+		 * 0x0000007F = CPU IRQ
+		 */
+		uint32_t bits = 0x00800080;
+		bits |= ((1 << target_cpu) & 0xFF) << 8;
+		bits |= (prio >> 2) & 0x3F;
+
+		writel(bits, bridge_base + 0x10 + i * 4);
+	}
+}
+
+static void iic_mask(struct irq_data *data)
+{
+	disconnect_pci_irq(data->hwirq);
+}
+
+static void iic_unmask(struct irq_data *data)
+{
+	connect_pci_irq(data->hwirq, 0);
+}
+
+static void xenon_ipi_send_mask(struct irq_data *data,
+				const struct cpumask *dest)
+{
+	int cpu = hard_smp_processor_id();
+	out_be64(iic_base + cpu * 0x1000 + 0x10,
+		 ((cpumask_bits(dest)[0] << 16) & 0x3F) | (data->hwirq & 0x7C));
+}
+
+static struct irq_chip xenon_pic = {
+	.name = " XENON-PIC ",
+	.irq_mask = iic_mask,
+	.irq_unmask = iic_unmask,
+	.ipi_send_mask = xenon_ipi_send_mask,
+	.flags = 0,
+};
+
+void xenon_init_irq_on_cpu(int cpu)
+{
+	printk(KERN_INFO "xenon IIC: init on cpu %i\n", cpu);
+
+	/* init that cpu's interrupt controller */
+	out_be64(iic_base + cpu * 0x1000 + 0x70, 0x7C);
+	out_be64(iic_base + cpu * 0x1000 + 0x08, 0); /* Set priority to 0 */
+	out_be64(iic_base + cpu * 0x1000, 1 << cpu); /* "who am i" */
+
+	/* read in and ack all outstanding interrupts */
+	while (in_be64(iic_base + cpu * 0x1000 + 0x50) != PRIO_NONE);
+	out_be64(iic_base + cpu * 0x1000 + 0x68, 0); /* EOI and set priority to 0 */
+}
+
+/* Get an IRQ number from the pending state register of the IIC */
+static unsigned int iic_get_irq(void)
+{
+	int cpu = hard_smp_processor_id();
+	void *my_iic_base;
+	int index;
+
+	my_iic_base = iic_base + cpu * 0x1000;
+
+	/* read destructive pending interrupt */
+	index = in_be64(my_iic_base + 0x50) & 0x7C;
+	out_be64(my_iic_base + 0x60, 0x0); /* EOI this interrupt. */
+
+	/* HACK: we will handle some (otherwise unhandled) interrupts here
+	   to prevent them flooding. */
+	switch (index) {
+	case PRIO_GRAPHICS:
+		writel(0, graphics + 0xed0);  // RBBM_INT_CNTL
+		writel(0, graphics + 0x6540); // R500_DxMODE_INT_MASK
+		break;
+	case PRIO_IOC:
+		writel(0, biu + 0x4002c);
+		break;
+	case PRIO_CLOCK:
+		writel(0, bridge_base + 0x106C);
+		break;
+	default:
+		break;
+	}
+
+	/* No interrupt. This really shouldn't happen. */
+	if (index == PRIO_NONE) {
+		return NO_IRQ;
+	}
+
+	return irq_linear_revmap(host, index);
+}
+
+static int xenon_irq_host_map(struct irq_domain *h, unsigned int virq,
+				irq_hw_number_t hw)
+{
+	irq_set_chip_and_handler(virq, &xenon_pic, handle_percpu_irq);
+	return 0;
+}
+
+static int xenon_irq_host_match(struct irq_domain *h, struct device_node *node,
+				enum irq_domain_bus_token bus_token)
+{
+	return h->host_data != NULL && node == h->host_data;
+}
+
+static const struct irq_domain_ops xenon_irq_host_ops = {
+	.map = xenon_irq_host_map,
+	.match = xenon_irq_host_match,
+};
+
+void __init xenon_iic_init_IRQ(void)
+{
+	int i;
+	struct device_node *dn;
+	struct resource res;
+
+	printk(KERN_DEBUG "xenon IIC: init\n");
+			/* search for our interrupt controller inside the device tree */
+	for (dn = NULL;
+	     (dn = of_find_node_by_name(dn, "interrupt-controller")) != NULL;) {
+		if (!of_device_is_compatible(dn, "xenon"))
+			continue;
+
+		if (of_address_to_resource(dn, 0, &res))
+		{
+			printk(KERN_WARNING "xenon IIC: Can't resolve addresses\n");
+			of_node_put(dn);
+			return;
+		}
+
+		iic_base = ioremap(res.start, 0x10000);
+
+		host = irq_domain_add_linear(NULL, XENON_NR_IRQS, &xenon_irq_host_ops, NULL);
+		host->host_data = of_node_get(dn);
+		BUG_ON(host == NULL);
+		irq_set_default_host(host);
+	}
+
+	ppc_md.get_irq = iic_get_irq;
+
+	bridge_base = ioremap(0xea000000, 0x10000);
+	biu = ioremap(0xe1000000, 0x2000000);
+	graphics = ioremap(0xec800000, 0x10000);
+
+		/* initialize interrupts */
+	writel(0, bridge_base);
+	writel(0x40000000, bridge_base + 4);
+
+	writel(0x40000000, biu + 0x40074);
+	writel(0xea000050, biu + 0x40078);
+
+	writel(0, bridge_base + 0xc);  /* Interrupt mask register */
+	writel(0x3, bridge_base);
+
+		/* disconnect all PCI IRQs until they are requested */
+	for (i=0; i<0x10; ++i)
+		writel(0, bridge_base + 0x10 + i * 4);
+
+	xenon_init_irq_on_cpu(0);
+}
+
+#ifdef CONFIG_SMP
+
+static int ipi_to_prio(int ipi)
+{
+	switch (ipi) {
+	case PPC_MSG_NMI_IPI:
+		return PRIO_IPI_1;
+		break;
+	case PPC_MSG_CALL_FUNCTION:
+		return PRIO_IPI_2;
+		break;
+	case PPC_MSG_RESCHEDULE:
+		return PRIO_IPI_3;
+		break;
+	case PPC_MSG_TICK_BROADCAST:
+		return PRIO_IPI_4;
+		break;
+	default:
+		printk("unhandled ipi %d\n", ipi);
+		BUG();
+	}
+	return 0;
+}
+
+void xenon_cause_IPI(int target_cpu, int msg)
+{
+	int ipi_prio;
+	int cpu = hard_smp_processor_id();
+
+	ipi_prio = ipi_to_prio(msg);
+	out_be64(iic_base + cpu * 0x1000 + 0x10, (0x10000 << target_cpu) | ipi_prio);
+}
+
+static void xenon_request_ipi(int ipi)
+{
+	int virq;
+	int prio = ipi_to_prio(ipi);
+
+	virq = irq_create_mapping(host, prio);
+	if (virq == NO_IRQ) {
+		printk(KERN_ERR "xenon_request_ipi: failed to map IPI%d (%s)\n",
+		       prio, smp_ipi_name[ipi]);
+		return;
+	}
+
+	if (smp_request_message_ipi(virq, ipi))
+		irq_dispose_mapping(virq);
+}
+
+void xenon_request_IPIs(void)
+{
+	xenon_request_ipi(PPC_MSG_TICK_BROADCAST);
+	xenon_request_ipi(PPC_MSG_CALL_FUNCTION);
+	xenon_request_ipi(PPC_MSG_RESCHEDULE);
+	xenon_request_ipi(PPC_MSG_NMI_IPI);
+}
+
+#endif
+
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/interrupt.h linux-5.12-xenon/arch/powerpc/platforms/xenon/interrupt.h
--- linux-5.12/arch/powerpc/platforms/xenon/interrupt.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/interrupt.h	2021-06-01 21:43:02.551664435 +0200
@@ -0,0 +1,10 @@
+#ifndef XENON_INTERRUPT_H
+#define XENON_INTERRUPT_H
+
+extern void xenon_init_irq_on_cpu(int cpu);
+extern void __init xenon_iic_init_IRQ(void);
+extern void xenon_cause_IPI(int target, int msg);
+extern void xenon_request_IPIs(void);
+
+#endif /* ASM_XENON_PIC_H */
+
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/pci.c linux-5.12-xenon/arch/powerpc/platforms/xenon/pci.c
--- linux-5.12/arch/powerpc/platforms/xenon/pci.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/pci.c	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,306 @@
+/*
+ * Xenon PCI support
+ * Maintained by: Felix Domke <tmbinc@elitedvb.net>
+ * Minor modification by: wolie <wolie@telia.com>
+ * based on:
+ * Copyright (C) 2004 Benjamin Herrenschmuidt (benh@kernel.crashing.org),
+ *		      IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/init.h>
+
+#include <asm/sections.h>
+#include <asm/io.h>
+#include <asm/prom.h>
+#include <asm/pci-bridge.h>
+#include <asm/machdep.h>
+#include <asm/iommu.h>
+#include <asm/ppc-pci.h>
+
+#ifdef DEBUG
+#define DBG(x...) printk(x)
+#else
+#define DBG(x...)
+#endif
+
+#define OFFSET(bus, slot, func)	\
+	((((bus) << 8) + PCI_DEVFN(slot, func)) << 12)
+
+static int xenon_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+			      int offset, int len, u32 *val)
+{
+	struct pci_controller *hose;
+	unsigned int slot = PCI_SLOT(devfn);
+	unsigned int func = PCI_FUNC(devfn);
+	void* addr;
+
+	hose = pci_bus_to_host(bus);
+	if (hose == NULL)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	DBG("xenon_pci_read_config, slot %d, func %d\n", slot, func);
+
+#if 0
+	if (PCI_SLOT(devfn) >= 32)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	if (PCI_SLOT(devfn) == 3)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	if (PCI_SLOT(devfn) == 6)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	if (PCI_SLOT(devfn) == 0xB)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+	if (PCI_FUNC(devfn) >= 2)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+#endif
+	DBG("xenon_pci_read_config, %p, devfn=%d, offset=%d, len=%d\n", bus, devfn, offset, len);
+
+	addr = ((void*)hose->cfg_addr) + offset;
+
+	/* map GPU to slot 0x0f */
+	if (slot == 0x0f)
+		addr += OFFSET(0, 0x02, func);
+	else
+		addr += OFFSET(1, slot, func);
+
+	/*
+	 * Note: the caller has already checked that offset is
+	 * suitably aligned and that len is 1, 2 or 4.
+	 */
+	switch (len) {
+	case 1:
+		*val = in_8((u8 *)addr);
+		break;
+	case 2:
+		*val = in_le16((u16 *)addr);
+		break;
+	default:
+		*val = in_le32((u32 *)addr);
+		break;
+	}
+	DBG("->%08x\n", (int)*val);
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int xenon_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+			       int offset, int len, u32 val)
+{
+	struct pci_controller *hose;
+	unsigned int slot = PCI_SLOT(devfn);
+	unsigned int func = PCI_FUNC(devfn);
+	void *addr;
+
+	hose = pci_bus_to_host(bus);
+	if (hose == NULL)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	DBG("xenon_pci_write_config, slot %d, func %d\n", slot, func);
+
+	if (PCI_SLOT(devfn) >= 32)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+#if 0
+	if (PCI_SLOT(devfn) == 3)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+#endif
+	DBG("xenon_pci_write_config, %p, devfn=%d, offset=%x, len=%d, val=%08x\n", bus, devfn, offset, len, val);
+
+	addr = ((void*)hose->cfg_addr) + offset;
+
+	/* map GPU to slot 0x0f */
+	if (slot == 0x0f)
+		addr += OFFSET(0, 0x02, func);
+	else
+		addr += OFFSET(1, slot, func);
+
+	if (len == 4)
+		DBG("was: %08x\n", readl(addr));
+	if (len == 2)
+		DBG("was: %04x\n", readw(addr));
+	if (len == 1)
+		DBG("was: %02x\n", readb(addr));
+	/*
+	 * Note: the caller has already checked that offset is
+	 * suitably aligned and that len is 1, 2 or 4.
+	 */
+	switch (len) {
+	case 1:
+		writeb(val, addr);
+		break;
+	case 2:
+		writew(val, addr);
+		break;
+	default:
+		writel(val, addr);
+		break;
+	}
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops xenon_pci_ops =
+{
+	.read	= xenon_pci_read_config,
+	.write	= xenon_pci_write_config,
+};
+
+
+#if 1
+void __init xenon_pci_init(void)
+{
+	struct pci_controller *hose;
+	struct device_node *np, *root;
+	struct device_node *dev = NULL;
+
+	root = of_find_node_by_path("/");
+	if (root == NULL) {
+		printk(KERN_CRIT "xenon_pci_init: can't find root of device tree\n");
+		return;
+	}
+	for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
+		if (np->name == NULL)
+			continue;
+		// printk("found node %p %s\n", np, np->name);
+		if (strcmp(np->name, "pci") == 0) {
+			of_node_get(np);
+			dev = np;
+		}
+	}
+	of_node_put(root);
+
+	if (!dev)
+	{
+		printk("couldn't find PCI node!\n");
+		return;
+	}
+
+	hose = pcibios_alloc_controller(dev);
+	if (hose == NULL)
+	{
+		printk("pcibios_alloc_controller failed!\n");
+		return;
+	}
+
+	hose->first_busno = 0;
+	hose->last_busno = 1;
+
+	hose->ops = &xenon_pci_ops;
+	hose->cfg_addr = ioremap(0xd0000000, 0x1000000);
+
+	pci_process_bridge_OF_ranges(hose, dev, 1);
+
+//	of_rescan_bus(root, ci_bus *bus)
+
+	/* Tell pci.c to not change any resource allocations.  */
+	pci_set_flags(PCI_PROBE_ONLY);
+
+	of_node_put(dev);
+	DBG("PCI initialized\n");
+
+	pci_io_base = 0;
+
+	// pcibios_scan_phb(hose, dev);
+	set_pci_dma_ops(&dma_iommu_ops);
+}
+
+#else
+
+
+static int __init xenon_add_bridge(struct device_node *dev)
+{
+	int len;
+	struct pci_controller *hose;
+	struct resource rsrc;
+	char *disp_name;
+	const int *bus_range;
+	int primary = 1, has_address = 0;
+
+	printk(KERN_DEBUG "Adding PCI host bridge %s\n", dev->full_name);
+
+	/* Fetch host bridge registers address */
+	has_address = (of_address_to_resource(dev, 0, &rsrc) == 0);
+
+	/* Get bus range if any */
+	bus_range = of_get_property(dev, "bus-range", &len);
+	if (bus_range == NULL || len < 2 * sizeof(int)) {
+		printk(KERN_WARNING "Can't get bus-range for %s, assume"
+		       " bus 0\n", dev->full_name);
+	}
+
+	hose = pcibios_alloc_controller(dev);
+	if (!hose)
+		return -ENOMEM;
+	hose->first_busno = bus_range ? bus_range[0] : 0;
+	hose->last_busno = bus_range ? bus_range[1] : 0xff;
+
+	hose->ops = &xenon_pci_ops;
+
+	/* FIXME: should come from config */
+	hose->cfg_addr = ioremap(0xd0000000, 0x1000000);
+
+	disp_name = NULL;
+
+	printk(KERN_INFO "Found %s PCI host bridge at 0x%016llx. "
+	       "Firmware bus number: %d->%d\n",
+		disp_name, (unsigned long long)rsrc.start, hose->first_busno,
+		hose->last_busno);
+
+	printk(KERN_DEBUG " ->Hose at 0x%p, cfg_addr=0x%p,cfg_data=0x%p\n",
+		hose, hose->cfg_addr, hose->cfg_data);
+
+	/* Interpret the "ranges" property */
+	/* This also maps the I/O region and sets isa_io/mem_base */
+	pci_process_bridge_OF_ranges(hose, dev, primary);
+
+	/* Fixup "bus-range" OF property */
+	// fixup_bus_range(dev);
+
+	return 0;
+}
+
+void __init xenon_pci_init(void)
+{
+	struct device_node *np, *root;
+
+	ppc_pci_set_flags(PPC_PCI_CAN_SKIP_ISA_ALIGN);
+
+	root = of_find_node_by_path("/");
+	if (root == NULL) {
+		printk(KERN_CRIT "xenon_pci_init: can't find root "
+		       "of device tree\n");
+		return;
+	}
+	for (np = NULL; (np = of_get_next_child(root, np)) != NULL;) {
+		if (np->name == NULL)
+			continue;
+		if (strcmp(np->name, "pci") == 0) {
+			if (xenon_add_bridge(np) == 0)
+				of_node_get(np);
+		}
+	}
+	of_node_put(root);
+
+	/* Setup the linkage between OF nodes and PHBs */
+	pci_devs_phb_init();
+
+
+	/* We can allocate missing resources if any */
+	pci_probe_only = 0;
+	pci_probe_only = 1;
+
+	/* do we need that? */
+	pci_io_base = 0;
+
+	/* do we need that? */
+	ppc_md.pci_dma_dev_setup = NULL;
+	ppc_md.pci_dma_bus_setup = NULL;
+	set_pci_dma_ops(&dma_iommu_ops);
+}
+
+#endif
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/pci.h linux-5.12-xenon/arch/powerpc/platforms/xenon/pci.h
--- linux-5.12/arch/powerpc/platforms/xenon/pci.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/pci.h	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,7 @@
+#ifndef XENON_PCI_H
+#define XENON_PCI_H
+
+extern void __init xenon_pci_init(void);
+
+#endif
+
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/setup.c linux-5.12-xenon/arch/powerpc/platforms/xenon/setup.c
--- linux-5.12/arch/powerpc/platforms/xenon/setup.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/setup.c	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,170 @@
+/*
+ *  linux/arch/powerpc/platforms/xenon/xenon_setup.c
+ *
+ *  Maintained by: Felix Domke <tmbinc@elitedvb.net>
+ *  Minor modification by: wolie <wolie@telia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/root_dev.h>
+#include <linux/console.h>
+#include <linux/kexec.h>
+
+#include <asm/mmu.h>
+#include <asm/pci-bridge.h>
+#include <asm/ppc-pci.h>
+#include <asm/prom.h>
+#include <asm/sections.h>
+
+#include "interrupt.h"
+#include "pci.h"
+#include "smp.h"
+
+#ifdef CONFIG_PPC_EARLY_DEBUG_XENON
+void udbg_init_xenon_virtual(void);
+#endif
+
+static int xenon_early_init(void)
+{
+	// xenon_smc_early_led(0x01, 0x60);
+	printk("%s\n", __func__);
+	return 0;
+}
+machine_early_initcall(xenon, xenon_early_init);
+
+static void xenon_show_cpuinfo(struct seq_file *m)
+{
+	struct device_node *root;
+	const char *model = "";
+
+	root = of_find_node_by_path("/");
+	if (root)
+		model = of_get_property(root, "model", NULL);
+	seq_printf(m, "machine\t\t: %s\n", model);
+	of_node_put(root);
+}
+
+static void __init xenon_init_irq(void)
+{
+	xenon_iic_init_IRQ();
+}
+
+static void __init xenon_setup_arch(void)
+{
+#ifdef CONFIG_SMP
+	smp_init_xenon();
+#endif
+		/* init to some ~sane value until calibrate_delay() runs */
+	loops_per_jiffy = 50000000;
+
+	if (ROOT_DEV == 0)
+		ROOT_DEV = Root_SDA1;
+
+	xenon_pci_init();
+#ifdef CONFIG_DUMMY_CONSOLE
+	conswitchp = &dummy_con;
+#endif
+}
+
+int xenon_smc_message(void *msg);
+void xenon_smc_restart(void);
+
+static void xenon_panic(char *str)
+{
+	// show a red ring
+	unsigned char msg[16] = {0x99, 0x01, 0x0F, 0};
+	xenon_smc_message(msg);
+
+	smp_send_stop();
+	printk("\n");
+	printk("   System does not reboot automatically.\n");
+	printk("   Please press POWER button.\n");
+	printk("\n");
+
+	local_irq_disable();
+	while (1);
+}
+
+static void __noreturn xenon_restart(char *cmd)
+{
+	printk("   System restart ... \n");
+
+	smp_send_stop();
+	xenon_smc_restart();
+
+	local_irq_disable();
+	while (1);
+}
+
+void xenon_smc_power_off(void);
+
+static void xenon_power_off(void)
+{
+	printk("   System power off ... \n");
+
+	smp_send_stop();
+	xenon_smc_power_off();
+
+	local_irq_disable();
+	while (1);
+}
+
+void xenon_smc_halt(void);
+
+static void __noreturn xenon_halt(void)
+{
+	printk("   System halt ... \n");
+
+	smp_send_stop();
+	xenon_smc_halt();
+
+	local_irq_disable();
+	while (1);
+}
+
+static int __init xenon_probe(void)
+{
+	if (!of_machine_is_compatible("XENON")) {
+		return 0;
+	}
+
+#ifdef CONFIG_PPC_EARLY_DEBUG_XENON
+	udbg_init_xenon_virtual();
+#endif
+
+	hpte_init_native();
+	pm_power_off = xenon_power_off;
+
+	return 1;
+}
+
+#if 0
+static int xenon_check_legacy_ioport(unsigned int baseport)
+{
+	return -ENODEV;
+}
+#endif
+
+define_machine(xenon) {
+	.name			= "Xenon",
+	.probe			= xenon_probe,
+	.setup_arch		= xenon_setup_arch,
+	.show_cpuinfo	= xenon_show_cpuinfo,
+	.calibrate_decr	= generic_calibrate_decr,
+	.init_IRQ       = xenon_init_irq,
+	.panic			= xenon_panic,
+	.restart		= xenon_restart,
+	.halt			= xenon_halt,
+#if 0 && defined(CONFIG_KEXEC)
+	.machine_kexec		= default_machine_kexec,
+	.machine_kexec_prepare	= default_machine_kexec_prepare,
+	.machine_crash_shutdown	= default_machine_crash_shutdown,
+#endif
+};
+
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/smp.c linux-5.12-xenon/arch/powerpc/platforms/xenon/smp.c
--- linux-5.12/arch/powerpc/platforms/xenon/smp.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/smp.c	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,81 @@
+/*
+ * SMP support for Xenon machines.
+ *
+ * Based on CBE's smp.c.
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/cpu.h>
+#include <linux/module.h>
+
+#include <asm/machdep.h>
+#include <asm/smp.h>
+#include <asm/udbg.h>
+
+#include "interrupt.h"
+
+#define DEBUG
+#if defined(DEBUG)
+#define DBG udbg_printf
+#else
+#define DBG pr_debug
+#endif
+
+extern int boot_cpuid;
+
+static void __init smp_xenon_probe(void)
+{
+	xenon_request_IPIs();
+}
+
+static void smp_xenon_setup_cpu(int cpu)
+{
+	/* Boot CPU IRQs are already initialized at this point in
+	 * xenon_iic_init_IRQ */
+	if (cpu != boot_cpuid)
+		xenon_init_irq_on_cpu(cpu);
+}
+
+static int smp_xenon_cpu_bootable(unsigned int nr)
+{
+	/* Special case - we inhibit secondary thread startup
+	 * during boot if the user requests it.  Odd-numbered
+	 * cpus are assumed to be secondary threads.
+	 */
+	if (system_state < SYSTEM_RUNNING && cpu_has_feature(CPU_FTR_SMT)
+	    && !smt_enabled_at_boot && nr % 2 != 0)
+		return 0;
+
+	return 1;
+}
+
+static void smp_xenon_message_pass(int cpu, int msg)
+{
+	xenon_cause_IPI(cpu, msg);
+}
+
+static struct smp_ops_t xenon_smp_ops = {
+	.probe = smp_xenon_probe,
+	.message_pass = smp_xenon_message_pass,
+#ifdef CONFIG_HOTPLUG_CPU
+	.cpu_die = generic_cpu_die,
+#endif
+	.kick_cpu = smp_generic_kick_cpu,
+	.setup_cpu = smp_xenon_setup_cpu,
+	.cpu_bootable = smp_xenon_cpu_bootable,
+};
+
+/* This is called very early */
+void __init smp_init_xenon(void)
+{
+	pr_debug(" -> smp_init_xenon()\n");
+
+	smp_ops = &xenon_smp_ops;
+
+	pr_debug(" <- smp_init_xenon()\n");
+}
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/smp.h linux-5.12-xenon/arch/powerpc/platforms/xenon/smp.h
--- linux-5.12/arch/powerpc/platforms/xenon/smp.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/smp.h	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,9 @@
+#ifndef XENON_SMP_H
+#define XENON_SMP_H
+
+#ifdef CONFIG_SMP
+extern void smp_init_xenon(void);
+#endif
+
+#endif
+
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/time.c linux-5.12-xenon/arch/powerpc/platforms/xenon/time.c
--- linux-5.12/arch/powerpc/platforms/xenon/time.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/time.c	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,36 @@
+/*
+ *  Xenon time and rtc routines.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+static int __init xenon_rtc_init(void)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_register_simple("rtc-xenon", -1, NULL, 0);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	return 0;
+}
+
+module_init(xenon_rtc_init);
diff -NurpP --minimal linux-5.12/arch/powerpc/platforms/xenon/xe_udbg.c linux-5.12-xenon/arch/powerpc/platforms/xenon/xe_udbg.c
--- linux-5.12/arch/powerpc/platforms/xenon/xe_udbg.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/arch/powerpc/platforms/xenon/xe_udbg.c	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,162 @@
+/*
+ * xe_udbg.c: Early debug console via framebuffer
+ *
+ * Copyright 2017 Justin Moore
+ *
+ * Licensed under the GPL v2.
+ */
+
+#include <linux/bug.h>
+#include <linux/delay.h>
+#include <linux/font.h>
+#include <linux/slab.h>
+
+#include <asm/cacheflush.h>
+#include <asm/fixmap.h>
+#include <asm/io.h>
+#include <asm/page.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+
+// ========================================================================
+// ========================================================================
+
+typedef struct console_context {
+  void __iomem *fb;
+  uint32_t width;
+  uint32_t height;
+
+  uint32_t cursor_x;
+  uint32_t cursor_y;
+} console_context_t;
+static console_context_t console_ctx;
+
+static void console_clrscr(console_context_t *context) {
+  unsigned int *fb = (unsigned int *)context->fb;
+  int count = context->width * context->height;
+  while (count--) out_be32(fb++, 0x00000000);
+
+  context->cursor_x = 0;
+  context->cursor_y = 0;
+}
+
+/* set a pixel to RGB values, must call console_init() first */
+static inline void console_pset32(console_context_t *context, int x, int y,
+                                  int color) {
+  uint32_t *fb = ((uint32_t *)context->fb);
+#define base                                                            \
+  (((y >> 5) * 32 * context->width + ((x >> 5) << 10) + (x & 3) +       \
+    ((y & 1) << 2) + (((x & 31) >> 2) << 3) + (((y & 31) >> 1) << 6)) ^ \
+   ((y & 8) << 2))
+  fb[base] = color;
+#undef base
+}
+
+static inline void console_pset(console_context_t *context, int x, int y,
+                                unsigned char r, unsigned char g,
+                                unsigned char b) {
+  console_pset32(context, x, y, (b << 24) + (g << 16) + (r << 8));
+}
+
+static void console_draw_char(console_context_t *context,
+                              const uint8_t *fontdata_8x16, const int x,
+                              const int y, const unsigned char c) {
+#define font_pixel(ch, x, y) ((fontdata_8x16[ch * 16 + y] >> (7 - x)) & 1)
+  int lx, ly;
+  for (ly = 0; ly < 16; ly++) {
+    for (lx = 0; lx < 8; lx++) {
+      console_pset32(context, x + lx, y + ly,
+                     font_pixel(c, lx, ly) == 1 ? 0xFFFFFF00 : 0x00000000);
+    }
+  }
+#undef font_pixel
+}
+
+static void console_scroll32(console_context_t *context,
+                             const unsigned int lines) {
+  int l, bs;
+  uint32_t *fb, *end;
+  uint32_t console_size = context->width * context->height;
+
+  bs = context->width * 32 * 4;
+  // copy all tile blocks to a higher position
+  for (l = lines; l * 32 < context->height; l++) {
+    memcpy(context->fb + bs * (l - lines), context->fb + bs * l, bs);
+  }
+
+  // fill up last lines with background color
+  fb = (uint32_t *)(context->fb + console_size * 4 - bs * lines);
+  end = (uint32_t *)(context->fb + console_size * 4);
+  memset(fb, 0x00000000, (end - fb) * 4);
+}
+
+static void console_newline(console_context_t *context) {
+  /* reset to the left and flush line */
+  context->cursor_x = 0;
+  context->cursor_y++;
+
+  if (context->cursor_y >= ((context->height - 32) / 16)) {
+    console_scroll32(context, 1);
+    context->cursor_y -= 2;
+  }
+}
+
+static void console_putch(const char c) {
+  if (!console_ctx.fb) return;
+
+  if (c == '\r') {
+    console_ctx.cursor_x = 0;
+  } else if (c == '\n') {
+    console_newline(&console_ctx);
+  } else {
+    console_draw_char(&console_ctx, font_vga_8x16.data,
+                      console_ctx.cursor_x * 8 + 32,
+                      console_ctx.cursor_y * 16 + 32, c);
+    console_ctx.cursor_x++;
+    if (console_ctx.cursor_x >= (console_ctx.width - 32) / 8)
+      console_newline(&console_ctx);
+  }
+}
+
+// ========================================================================
+// ========================================================================
+
+void __init udbg_init_xenon(void) {
+  /*
+   * 148x41
+   * Since we're running in real mode now, we can't enable logging until
+   * we reach virtual mode. Just set up our structure and clear the
+   * screen. This depends on XeLL running before us, and it having already
+   * set up the screen.
+   */
+  memset(&console_ctx, 0, sizeof(console_context_t));
+  console_ctx.fb = (void *)0x1E000000ull;
+  console_ctx.width = ((1280 + 31) >> 5) << 5;
+  console_ctx.height = ((720 + 31) >> 5) << 5;
+  console_clrscr(&console_ctx);
+  // udbg_putc = console_putch;
+}
+
+void __init udbg_init_xenon_virtual(void) {
+  void __iomem *framebuffer = ioremap(0x1E000000, 0x01FFFFFF);
+  if (framebuffer) {
+    console_ctx.fb = framebuffer;
+    udbg_putc = console_putch;
+  }
+}
+EXPORT_SYMBOL(udbg_init_xenon_virtual);
+
+void udbg_shutdown_xenon(void) {
+  if (console_ctx.fb) {
+    // cannot iounmap early bolted memory
+    // iounmap(console_ctx.fb);
+    console_ctx.fb = NULL;
+  }
+
+  if (udbg_putc == NULL) {
+    return;
+  }
+
+  udbg_putc = NULL;
+}
+EXPORT_SYMBOL(udbg_shutdown_xenon);
\ No newline at end of file
diff -NurpP --minimal linux-5.12/drivers/Makefile linux-5.12-xenon/drivers/Makefile
--- linux-5.12/drivers/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/Makefile	2021-06-01 21:43:02.555664501 +0200
@@ -140,6 +140,7 @@ obj-y				+= clocksource/
 obj-$(CONFIG_DCA)		+= dca/
 obj-$(CONFIG_HID)		+= hid/
 obj-$(CONFIG_PPC_PS3)		+= ps3/
+obj-$(CONFIG_PPC_XENON)		+= xenon/
 obj-$(CONFIG_OF)		+= of/
 obj-$(CONFIG_SSB)		+= ssb/
 obj-$(CONFIG_BCMA)		+= bcma/
diff -NurpP --minimal linux-5.12/drivers/ata/Kconfig linux-5.12-xenon/drivers/ata/Kconfig
--- linux-5.12/drivers/ata/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/ata/Kconfig	2021-06-01 21:43:02.555664501 +0200
@@ -525,6 +525,14 @@ config SATA_SVW
 
 	  If unsure, say N.
 
+config SATA_XENON
+	tristate "Xenon SATA support"
+	depends on PCI
+	help
+	  This option enables support for Xenon southbridge.
+
+	  If unsure, say N.
+
 config SATA_ULI
 	tristate "ULi Electronics SATA support"
 	depends on PCI
diff -NurpP --minimal linux-5.12/drivers/ata/Makefile linux-5.12-xenon/drivers/ata/Makefile
--- linux-5.12/drivers/ata/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/ata/Makefile	2021-06-01 21:43:02.555664501 +0200
@@ -13,6 +13,7 @@ obj-$(CONFIG_SATA_INIC162X)	+= sata_inic
 obj-$(CONFIG_SATA_SIL24)	+= sata_sil24.o
 obj-$(CONFIG_SATA_DWC)		+= sata_dwc_460ex.o
 obj-$(CONFIG_SATA_HIGHBANK)	+= sata_highbank.o libahci.o
+obj-$(CONFIG_SATA_XENON)    += sata_xenon.o
 obj-$(CONFIG_AHCI_BRCM)		+= ahci_brcm.o libahci.o libahci_platform.o
 obj-$(CONFIG_AHCI_CEVA)		+= ahci_ceva.o libahci.o libahci_platform.o
 obj-$(CONFIG_AHCI_DA850)	+= ahci_da850.o libahci.o libahci_platform.o
diff -NurpP --minimal linux-5.12/drivers/ata/sata_xenon.c linux-5.12-xenon/drivers/ata/sata_xenon.c
--- linux-5.12/drivers/ata/sata_xenon.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/ata/sata_xenon.c	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,253 @@
+/*
+ *  sata_xenon.c - SATA support for xenon southbridge
+ *
+ *  based on sata_sis.c, modifications by Felix Domke <tmbinc@elitedvb.net>
+ *  minor modification by: wolie <wolie@telia.com>
+ *
+ *  		    Please ALWAYS copy linux-ide@vger.kernel.org
+ *		    on emails.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2, or (at your option)
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; see the file COPYING.  If not, write to
+ *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ *
+ *  libata documentation is available via 'make {ps|pdf}docs',
+ *  as Documentation/DocBook/libata.*
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <scsi/scsi_host.h>
+#include <linux/libata.h>
+
+#define DRV_NAME	"sata_xenon"
+#define DRV_VERSION	"0.1.1"
+
+	/* small note: it's completely unknown whether the xenon southbridge sata
+	   is really based on SiS technology.
+	   Most of SATA is standardized anyway.
+
+
+	   So, we have these two pci devices, one for each port.
+
+	   They have two BARs, one for the IDE registers (0..7,
+	   altstatus/devctl is +0xA), and one for the BMDMA.
+
+	   SCR seem to be sis-like in pci config space, but that should
+	   be verified!
+
+	   Note on the DVD-ROM part:
+
+	   The drives usually require some tweaks to be usable under linux.
+
+	   You either need to hack the scsi layer, or, in case of the GDR3120L,
+	   set 'modeB' in the bootloader.
+	*/
+
+enum {
+	/* PCI configuration registers */
+	SIS_SCR_BASE		= 0xc0, /* sata0 phy SCR registers */
+};
+
+static int xenon_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
+static int xenon_scr_read (struct ata_link *link, unsigned int sc_reg, u32 *val);
+static int xenon_scr_write (struct ata_link *link, unsigned int sc_reg, u32 val);//void
+static void xenon_bmdma_error_handler(struct ata_port *ap);
+
+static const struct pci_device_id xenon_pci_tbl[] = {
+	{ PCI_VDEVICE(MICROSOFT, 0x5803), 0 },
+	/* { PCI_VDEVICE(MICROSOFT, 0x5802), 0 }, */
+
+	{ }	/* terminate list */
+};
+
+static struct pci_driver xenon_pci_driver = {
+	.name			= DRV_NAME,
+	.id_table		= xenon_pci_tbl,
+	.probe			= xenon_init_one,
+	.remove			= ata_pci_remove_one,
+};
+
+static struct scsi_host_template xenon_sht = {
+	ATA_BMDMA_SHT(DRV_NAME),
+};
+
+static struct ata_port_operations xenon_ops = {
+	.inherits		= &ata_bmdma_port_ops,
+// 	.lost_interrupt		= ATA_OP_NULL,
+	.error_handler		= xenon_bmdma_error_handler,
+	.scr_read		= xenon_scr_read,
+	.scr_write		= xenon_scr_write,
+};
+
+static const struct ata_port_info xenon_port_info = {
+	.flags		= ATA_FLAG_SATA,
+	.pio_mask	= ATA_PIO4,
+	.mwdma_mask	= ATA_MWDMA2,
+	.udma_mask	= ATA_UDMA6, //0x7F
+	.port_ops	= &xenon_ops,
+//	.irq_handler	= ata_interrupt,
+//	.private_data   = NULL
+};
+
+
+MODULE_DESCRIPTION("low-level driver for Xenon Southbridge SATA controller");
+MODULE_LICENSE("GPL");
+MODULE_DEVICE_TABLE(pci, xenon_pci_tbl);
+MODULE_VERSION(DRV_VERSION);
+
+static unsigned int get_scr_cfg_addr(unsigned int sc_reg)
+{
+	if ((sc_reg > SCR_CONTROL) || (sc_reg == SCR_ERROR)) /* doesn't exist in PCI cfg space */
+		return -1;
+
+	return SIS_SCR_BASE + (4 * sc_reg);
+
+}
+
+static int xenon_scr_read (struct ata_link *link, unsigned int sc_reg, u32 *val) //u32
+{
+	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
+	unsigned int cfg_addr;
+
+	cfg_addr = get_scr_cfg_addr(sc_reg);
+
+	if (cfg_addr == -1)
+		return -EINVAL;
+
+	pci_read_config_dword(pdev, cfg_addr, val);
+	return 0;
+}
+
+static int xenon_scr_write (struct ata_link *link, unsigned int sc_reg, u32 val) //void
+{
+	struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
+	unsigned int cfg_addr;
+
+	cfg_addr = get_scr_cfg_addr(sc_reg);
+
+	if (cfg_addr == -1)
+		return -EINVAL;
+
+	pci_write_config_dword(pdev, cfg_addr, val);
+	return 0;
+}
+
+static int xenon_softreset(struct ata_link *link, unsigned int *classes, unsigned long deadline)
+{
+	struct ata_port *ap = link->ap;
+	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
+		/* Host 0 (used for DVD-ROM) has a quirk when used with
+		   an Toshiba/Samsung drive: It can hang after a device reset.
+
+		   While the exact reason is unclear (anyone with a SATA port
+		   analyzer?), this workaround will not let the reset happen, and
+		   emulate the detection of an ATAPI device.
+
+		   When the workaround is enabled, only ATAPI devices are supported
+		   on host 0, but on this hardware, nothing else is possible anyway. */
+	if (pdev->device == 0x5802)
+	{
+		classes[0] = ATA_DEV_ATAPI;
+		classes[1] = ATA_DEV_NONE;
+		printk(KERN_WARNING "Simulating reset of SATA device 0x5802\n");
+		return -EIO;
+	} else {
+		return ata_sff_softreset(link, classes, deadline);
+	}
+}
+
+static void xenon_bmdma_error_handler(struct ata_port *ap)
+{
+	ata_do_eh(ap, ata_std_prereset, xenon_softreset, sata_std_hardreset, ata_std_postreset);
+}
+
+
+static int xenon_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	static int printed_version;
+	struct ata_host *host;
+	struct ata_ioports *ioaddr;
+	struct ata_port_info pi = xenon_port_info;
+	const struct ata_port_info *ppi[] = { &pi, NULL };
+	int rc;
+
+	if (!printed_version++)
+		dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
+
+	rc = pci_enable_device(pdev);
+	if (rc)
+		return rc;
+
+	rc = pci_request_regions(pdev, DRV_NAME);
+	if (rc) {
+		goto err_out;
+	}
+
+	rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
+	if (rc)
+		goto err_out_regions;
+
+	rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
+	if (rc)
+		goto err_out_regions;
+
+	host = ata_host_alloc_pinfo(&pdev->dev, ppi, 1);
+	if (!host) {
+		rc = -ENOMEM;
+		goto err_out_regions;
+	}
+
+	ioaddr = &host->ports[0]->ioaddr;
+	ioaddr->cmd_addr = ioremap(pci_resource_start(pdev, 0), PAGE_SIZE);
+	ioaddr->altstatus_addr = ioaddr->cmd_addr + 0xa;
+	ioaddr->ctl_addr = ioaddr->cmd_addr + 0xa;
+	ioaddr->bmdma_addr = ioremap(pci_resource_start(pdev, 1), PAGE_SIZE);
+
+	ata_sff_std_ports(ioaddr);
+
+	pci_set_master(pdev);
+	pci_intx(pdev, 1);
+
+	return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
+				 IRQF_SHARED, &xenon_sht);
+
+err_out_regions:
+	pci_release_regions(pdev);
+
+err_out:
+	pci_disable_device(pdev);
+	return rc;
+}
+
+static int __init xenon_init(void)
+{
+	return pci_register_driver(&xenon_pci_driver);
+}
+
+static void __exit xenon_exit(void)
+{
+	pci_unregister_driver(&xenon_pci_driver);
+}
+
+module_init(xenon_init);
+module_exit(xenon_exit);
+
diff -NurpP --minimal linux-5.12/drivers/char/Kconfig linux-5.12-xenon/drivers/char/Kconfig
--- linux-5.12/drivers/char/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/char/Kconfig	2021-06-01 21:43:02.555664501 +0200
@@ -7,6 +7,32 @@ menu "Character devices"
 
 source "drivers/tty/Kconfig"
 
+config XENON_SMC
+	tristate "Xenon System Management Controller (SMC)"
+	depends on PPC_XENON
+	help
+	  Character interface to the System Management controller in the
+	  Xbox 360. Allows to send arbitrary SMC commands and receive
+	  SMC replies.
+
+config XENON_ANA
+	tristate "Xenon (H)ana Character Device"
+	depends on PPC_XENON
+	help
+	  Character interface to the (H)ana chip on the Xbox 360.
+
+config XENON_PROBE
+	tristate "Xenon Memory Probe Device"
+	depends on PPC_XENON && EXPERIMENTAL
+	help
+	  Character interface to do memory probing on the Xbox 360.
+
+config XENOS_RB
+	tristate "Xenos Ring Buffer Device"
+	depends on PPC_XENON && HAS_DMA
+	help
+	  Character device supporting raw ringbuffer writes to the Xenos.
+
 config TTY_PRINTK
 	tristate "TTY driver to output user messages via printk"
 	depends on EXPERT && TTY
diff -NurpP --minimal linux-5.12/drivers/char/Makefile linux-5.12-xenon/drivers/char/Makefile
--- linux-5.12/drivers/char/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/char/Makefile	2021-06-01 21:43:02.555664501 +0200
@@ -12,6 +12,10 @@ obj-$(CONFIG_RAW_DRIVER)	+= raw.o
 obj-$(CONFIG_MSPEC)		+= mspec.o
 obj-$(CONFIG_UV_MMTIMER)	+= uv_mmtimer.o
 obj-$(CONFIG_IBM_BSR)		+= bsr.o
+obj-$(CONFIG_XENON_SMC)  	+= xenon_smc.o
+obj-$(CONFIG_XENON_ANA)  	+= xenon_ana.o
+obj-$(CONFIG_XENON_PROBE)  	+= xenon_probe.o
+obj-$(CONFIG_XENOS_RB)    += xenos_rb.o
 
 obj-$(CONFIG_PRINTER)		+= lp.o
 
diff -NurpP --minimal linux-5.12/drivers/char/xenon_ana.c linux-5.12-xenon/drivers/char/xenon_ana.c
--- linux-5.12/drivers/char/xenon_ana.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/char/xenon_ana.c	2021-06-01 21:43:02.555664501 +0200
@@ -0,0 +1,210 @@
+/*
+ *  Xenon (H)ana via SMC character driver.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+
+#define DRV_NAME	"xenon_ana"
+#define DRV_VERSION	"0.2"
+
+
+int xenon_smc_message_wait(void *msg);
+
+static uint32_t ana_read_reg(uint8_t addr)
+{
+	unsigned char msg[16] = { 0x11,
+		0x10, 0x05, 0x80 | 0x70, 0x00, 0xF0, addr };
+
+	xenon_smc_message_wait(msg);
+	return msg[4] | (msg[5] << 8) | (msg[6] << 16) | (msg[7] << 24);
+}
+
+static int ana_write_reg(uint8_t addr, uint32_t val)
+{
+	unsigned char msg[16] = { 0x11,
+		0x60, 0x00, 0x80 | 0x70, 0x00, 0x00,
+		addr, 0x00, val & 0xFF, (val >> 8) & 0xFF,
+		(val >> 16) & 0xFF, (val >> 24) & 0xFF };
+
+	xenon_smc_message_wait(msg);
+	return msg[1];
+}
+
+static loff_t ana_llseek(struct file *file, loff_t offset, int origin)
+{
+	switch (origin) {
+	case 1:
+		offset += file->f_pos;
+		break;
+	case 2:
+		offset += 0x400;
+		break;
+	}
+	if (offset < 0)
+		return -EINVAL;
+
+	file->f_pos = offset;
+	return file->f_pos;
+}
+
+typedef union {
+	uint32_t val;
+	uint8_t p[4];
+} 	ana_reg_t;
+
+static ssize_t ana_read(struct file *file, char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	uint32_t ppa = *ppos;
+
+	if (*ppos >= 0x400UL)
+		return -EINVAL;
+
+	while (count) {
+		/* optimize reads in same reg */
+		int addr = ppa/4;
+		int shift = ppa % 4;
+		ana_reg_t r = { .val = ana_read_reg(addr) };
+
+		int len = 4 - shift;
+
+		if (len > count)
+			len = count;
+		if (copy_to_user(buf, &r.p[shift], len))
+			return -EFAULT;
+
+		count -= len;
+		buf += len;
+		ppa += len;
+
+		/* end of register space? */
+		if (ppa >= 0x400)
+			break;
+	}
+
+	/* how much data was actually transferred? */
+	count = ppa - *ppos;
+	*ppos = ppa;
+	return count;
+}
+
+static ssize_t ana_write(struct file *file, const char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	uint32_t ppa = *ppos;
+
+	if (*ppos >= 0x400UL)
+		return -EINVAL;
+
+	while (count) {
+		/* coalesce writes to same reg */
+		int addr = ppa/4;
+		int shift = ppa % 4;
+		ana_reg_t r;
+
+		int len = 4 - shift;
+
+		if (len > count)
+			len = count;
+
+		/* handle partial write */
+		if (len != 4)
+			r.val = ana_read_reg(addr);
+
+		if (copy_from_user(&r.p[shift], buf, len))
+			return -EFAULT;
+
+		/* FIXME: handle return code */
+		ana_write_reg(addr, r.val);
+
+		count -= len;
+		buf += len;
+		ppa += len;
+
+		/* end of register space? */
+		if (ppa >= 0x400)
+			break;
+	}
+
+	/* how much data was actually transferred? */
+	count = ppa - *ppos;
+	*ppos = ppa;
+	return count;
+}
+
+static long ana_ioctl(struct file *file,
+	unsigned int cmd, unsigned long arg)
+{
+	return -ENODEV;
+}
+
+static int ana_open(struct inode *inode, struct file *file)
+{
+	return nonseekable_open(inode, file);
+}
+
+static int ana_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+
+const struct file_operations ana_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= ana_llseek,
+	.read		= ana_read,
+	.write		= ana_write,
+	.unlocked_ioctl	= ana_ioctl,
+	.open		= ana_open,
+	.release	= ana_release,
+};
+
+static struct miscdevice ana_dev = {
+	.minor =  MISC_DYNAMIC_MINOR,
+	"ana",
+	&ana_fops
+};
+
+int __init ana_init(void)
+{
+	int ret = 0;
+
+	printk(KERN_INFO "Xenon (H)ana char driver version " DRV_VERSION "\n");
+
+	ret = misc_register(&ana_dev);
+	return ret;
+}
+
+void __exit ana_exit(void)
+{
+	misc_deregister(&ana_dev);
+}
+
+module_init(ana_init);
+module_exit(ana_exit);
+
+MODULE_AUTHOR("Herbert Poetzl <herbert@13thfloor.at>");
+MODULE_DESCRIPTION("Character Interface for Xenon (H)ana");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
diff -NurpP --minimal linux-5.12/drivers/char/xenon_probe.c linux-5.12-xenon/drivers/char/xenon_probe.c
--- linux-5.12/drivers/char/xenon_probe.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/char/xenon_probe.c	2021-06-01 21:43:02.559664567 +0200
@@ -0,0 +1,229 @@
+/*
+ *  Xenon Memory Probe character driver.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#define DRV_NAME	"xenon_probe"
+#define DRV_VERSION	"0.1"
+
+static unsigned long base = 0xc8000000;
+static unsigned long size = 0x10000;
+static bool little_endian = 0;
+
+module_param(base, ulong, 0);
+MODULE_PARM_DESC(base, "Probe Memory Base");
+
+module_param(size, ulong, 0);
+MODULE_PARM_DESC(size, "Probe Memory Size");
+
+module_param(little_endian, bool, 0);
+MODULE_PARM_DESC(little_endian, "Probe Memory Endianess");
+
+static void __iomem *mapped = NULL;
+
+
+static uint32_t probe_map(uint32_t val)
+{
+	if (little_endian)
+		return le32_to_cpu(val);
+	else
+		return be32_to_cpu(val);
+}
+
+static uint32_t probe_rmap(uint32_t val)
+{
+	if (little_endian)
+		return cpu_to_le32(val);
+	else
+		return cpu_to_be32(val);
+}
+
+
+static loff_t probe_llseek(struct file *file, loff_t offset, int origin)
+{
+	switch (origin) {
+	case 1:
+		offset += file->f_pos;
+		break;
+	case 2:
+		offset += size;
+		break;
+	}
+	if ((offset < 0) || (offset >= size))
+		return -EINVAL;
+
+	file->f_pos = offset;
+	return file->f_pos;
+}
+
+typedef union {
+	uint32_t val;
+	uint8_t p[4];
+} 	probe_mem_t;
+
+static ssize_t probe_read(struct file *file,
+	char __user *buf, size_t count, loff_t *ppos)
+{
+	uint32_t ppa = *ppos;
+
+	if (*ppos >= size)
+		return -EINVAL;
+
+	printk("probe_read(%x,%zx)\n", ppa, count);
+	while (count) {
+		/* optimize reads in same longword */
+		unsigned long addr = ppa & ~3;
+		int shift = ppa % 4;
+		probe_mem_t r = { .val = probe_map(readl(mapped + addr)) };
+
+		int len = 4 - shift;
+
+		if (len > count)
+			len = count;
+		if (copy_to_user(buf, &r.p[shift], len))
+			return -EFAULT;
+
+		count -= len;
+		buf += len;
+		ppa += len;
+
+		/* end of register space? */
+		if (ppa >= size)
+			break;
+	}
+
+	/* how much data was actually transferred? */
+	count = ppa - *ppos;
+	*ppos = ppa;
+	return count;
+}
+
+static ssize_t probe_write(struct file *file,
+	const char __user *buf, size_t count, loff_t *ppos)
+{
+	uint32_t ppa = *ppos;
+
+	if (*ppos >= size)
+		return -EINVAL;
+
+	printk("probe_write(%x,%zx)\n", ppa, count);
+	while (count) {
+		/* coalesce writes to same reg */
+		unsigned long addr = ppa & ~3;
+		int shift = ppa % 4;
+		probe_mem_t r;
+
+		int len = 4 - shift;
+
+		if (len > count)
+			len = count;
+
+		/* handle partial write */
+		if (len != 4)
+			r.val = probe_map(readl(mapped + addr));
+
+		if (copy_from_user(&r.p[shift], buf, len))
+			return -EFAULT;
+
+		writel(probe_rmap(r.val), mapped + addr);
+
+		count -= len;
+		buf += len;
+		ppa += len;
+
+		/* end of register space? */
+		if (ppa >= size)
+			break;
+	}
+
+	/* how much data was actually transferred? */
+	count = ppa - *ppos;
+	*ppos = ppa;
+	return count;
+}
+
+static long probe_ioctl(struct file *file,
+	unsigned int cmd, unsigned long arg)
+{
+	return -ENODEV;
+}
+
+static int probe_open(struct inode *inode, struct file *file)
+{
+	return generic_file_open(inode, file);
+}
+
+static int probe_release(struct inode *inode, struct file *file)
+{
+	return 0;
+}
+
+
+const struct file_operations probe_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= probe_llseek,
+	.read		= probe_read,
+	.write		= probe_write,
+	.unlocked_ioctl	= probe_ioctl,
+	.open		= probe_open,
+	.release	= probe_release,
+};
+
+static struct miscdevice probe_dev = {
+	.minor =  MISC_DYNAMIC_MINOR,
+	"probe",
+	&probe_fops
+};
+
+int __init probe_init(void)
+{
+	int ret = 0;
+
+	printk(KERN_INFO "Xenon Memory Probe driver version " DRV_VERSION "\n");
+
+	mapped = ioremap(base, size);
+	if (!mapped)
+		return -EINVAL;
+
+	printk(KERN_INFO "XMP mapped 0x%04lx bytes @0x%08lx\n",
+		size, base);
+
+	ret = misc_register(&probe_dev);
+	return ret;
+}
+
+void __exit probe_exit(void)
+{
+	misc_deregister(&probe_dev);
+}
+
+module_init(probe_init);
+module_exit(probe_exit);
+
+MODULE_AUTHOR("Herbert Poetzl <herbert@13thfloor.at>");
+MODULE_DESCRIPTION("Xenon Memory Probe Interface");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
diff -NurpP --minimal linux-5.12/drivers/char/xenon_smc.c linux-5.12-xenon/drivers/char/xenon_smc.c
--- linux-5.12/drivers/char/xenon_smc.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/char/xenon_smc.c	2021-06-01 21:43:02.559664567 +0200
@@ -0,0 +1,122 @@
+/*
+ *  Xenon SMC character driver.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/miscdevice.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+
+#define DRV_NAME	"xenon_smc"
+#define DRV_VERSION	"0.2"
+
+
+/* single access for now */
+
+static unsigned long is_active;
+static unsigned char msg[16];
+
+static ssize_t smc_read(struct file *file, char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	if ((count != 16) || *ppos)
+		return -EINVAL;
+	if (copy_to_user(buf, msg, 0x10))
+		return -EFAULT;
+
+	return 16;
+}
+
+int xenon_smc_message_wait(void *msg);
+
+static ssize_t smc_write(struct file *file, const char __user *buf,
+	size_t count, loff_t *ppos)
+{
+	if ((count != 16) || *ppos)
+		return -EINVAL;
+
+	if (copy_from_user(msg, buf, 16))
+		return -EFAULT;
+
+	xenon_smc_message_wait(msg);
+
+	return 16;
+}
+
+static long smc_ioctl(struct file *file,
+	unsigned int cmd, unsigned long arg)
+{
+	return -ENODEV;
+}
+
+static int smc_open(struct inode *inode, struct file *file)
+{
+	if (test_and_set_bit(0, &is_active))
+		return -EBUSY;
+
+	return nonseekable_open(inode, file);
+}
+
+static int smc_release(struct inode *inode, struct file *file)
+{
+	clear_bit(0, &is_active);
+	return 0;
+}
+
+
+const struct file_operations smc_fops = {
+	.owner		= THIS_MODULE,
+	.llseek		= no_llseek,
+	.read		= smc_read,
+	.write		= smc_write,
+	.unlocked_ioctl	= smc_ioctl,
+	.open		= smc_open,
+	.release	= smc_release,
+};
+
+static struct miscdevice smc_dev = {
+	.minor =  MISC_DYNAMIC_MINOR,
+	"smc",
+	&smc_fops
+};
+
+int __init smc_init(void)
+{
+	int ret = 0;
+
+	printk(KERN_INFO "Xenon SMC char driver version " DRV_VERSION "\n");
+
+	ret = misc_register(&smc_dev);
+	return ret;
+}
+
+void __exit smc_exit(void)
+{
+	misc_deregister(&smc_dev);
+}
+
+module_init(smc_init);
+module_exit(smc_exit);
+
+MODULE_AUTHOR("Herbert Poetzl <herbert@13thfloor.at>");
+MODULE_DESCRIPTION("Character Interface for Xenon Southbridge SMC");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
diff -NurpP --minimal linux-5.12/drivers/char/xenos_rb.c linux-5.12-xenon/drivers/char/xenos_rb.c
--- linux-5.12/drivers/char/xenos_rb.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/char/xenos_rb.c	2021-06-01 21:43:02.559664567 +0200
@@ -0,0 +1,937 @@
+/*
+ *  Xenos RingBuffer character driver.
+ *
+ *  Copyright (C) 2018 Justin Moore
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/ioctl.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/miscdevice.h>
+#include <linux/circ_buf.h>
+#include <linux/log2.h>
+#include <linux/fs.h>
+#include <linux/uaccess.h>
+#include <linux/types.h>
+
+#include <asm/cacheflush.h>
+
+#define DRV_NAME	"xenos_rb"
+#define DRV_VERSION	"0.1"
+
+#define IOC_MAGIC 0x58524230
+#define IOCTL_RESET _IO(IOC_MAGIC, 0)
+
+static int xenosrb_size = 0x8000;
+module_param(xenosrb_size, int, 0444);
+
+static uint32_t xenos_pfp_ucode[] = {
+	0xC60400, 0x7E424B, 0xA00000, 0x7E828B, 0x800001, 0xC60400, 0xCC4003,
+	0x800000, 0xD60003, 0xC60800, 0xC80C1D, 0x98C007, 0xC61000, 0x978003,
+	0xCC4003, 0xD60004, 0x800000, 0xCD0003, 0x9783EF, 0xC60400, 0x800000,
+	0xC60400, 0xC60800, 0x348C08, 0x98C006, 0xC80C1E, 0x98C000, 0xC80C1E,
+	0x80001F, 0xCC8007, 0xCC8008, 0xCC4003, 0x800000, 0xCC8003, 0xC60400,
+	0x1AAC07, 0xCA8821, 0x96C015, 0xC8102C, 0x98800A, 0x329418, 0x9A4004,
+	0xCC6810, 0x42401,  0xD00143, 0xD00162, 0xCD0002, 0x7D514C, 0xCD4003,
+	0x9B8007, 0x6A801,  0x964003, 0xC28000, 0xCF4003, 0x800001, 0xC60400,
+	0x800023, 0xC60400, 0x964003, 0x7E424B, 0xD00283, 0xC8102B, 0xC60800,
+	0x99000E, 0xC80C29, 0x98C00A, 0x345002, 0xCD0002, 0xCC8002, 0xD001E3,
+	0xD00183, 0xCC8003, 0xCC4018, 0x80004D, 0xCC8019, 0xD00203, 0xD00183,
+	0x9783B4, 0xC60400, 0xC8102B, 0xC60800, 0x9903AF, 0xC80C2A, 0x98C00A,
+	0x345002, 0xCD0002, 0xCC8002, 0xD001E3, 0xD001A3, 0xCC8003, 0xCC401A,
+	0x800000, 0xCC801B, 0xD00203, 0xD001A3, 0x800001, 0xC60400, 0xC60800,
+	0xC60C00, 0xC8102D, 0x349402, 0x99000B, 0xC8182E, 0xCD4002, 0xCD8002,
+	0xD001E3, 0xD001C3, 0xCCC003, 0xCC801C, 0xCD801D, 0x800001, 0xC60400,
+	0xD00203, 0x800000, 0xD001C3, 0xC8081F, 0xC60C00, 0xC80C20, 0x988000,
+	0xC8081F, 0xCC4003, 0xCCC003, 0xD60003, 0x800000, 0xCCC022, 0xC81C2F,
+	0xC60400, 0xC60800, 0xC60C00, 0xC81030, 0x99C000, 0xC81C2F, 0xCC8021,
+	0xCC4020, 0x990011, 0xC107FF, 0xD00223, 0xD00243, 0x345402, 0x7CB18B,
+	0x7D95CC, 0xCDC002, 0xCCC002, 0xD00263, 0x978005, 0xCCC003, 0xC60800,
+	0x80008B, 0xC60C00, 0x800000, 0xD00283, 0x97836A, 0xC60400, 0xD6001F,
+	0x800001, 0xC60400, 0xC60800, 0xC60C00, 0xC61000, 0x348802, 0xCC8002,
+	0xCC4003, 0xCCC003, 0xCD0002, 0x800000, 0xCD0003, 0xD2000D, 0xCC000D,
+	0x800000, 0xCC000D, 0xC60800, 0xC60C00, 0xCA1433, 0xD022A0, 0xCCE000,
+	0x994351, 0xCCE005, 0x800000, 0x62001,  0xC60800, 0xC60C00, 0xD022A0,
+	0xCCE000, 0xD022AE, 0xCCE029, 0xCCE005, 0x800000, 0x62001,  0x964000,
+	0xC82435, 0xCA0838, 0x366401, 0x964340, 0xCA0C3A, 0xCCA000, 0xCCE000,
+	0xCCE029, 0xCCE005, 0x800000, 0x62001,  0xC60800, 0xC60C00, 0xD202C3,
+	0xCC8003, 0xCCC003, 0xCCE027, 0x800000, 0x62001,  0xCA0831, 0x9883FF,
+	0xCA0831, 0xD6001F, 0x800001, 0xC60400, 0xD02360, 0xD02380, 0xD02385,
+	0x800000, 0x62001,  0xA2001,  0xCA0436, 0x9843DF, 0xC82435, 0x800001,
+	0xC60400, 0xD20009, 0xD2000A, 0xCC001F, 0x800000, 0xCC001F, 0xD2000B,
+	0xD2000C, 0xCC001F, 0x800000, 0xCC001F, 0xCC0023, 0xCC4003, 0x800000,
+	0xD60003, 0xD00303, 0xCC0024, 0xCC4003, 0x800000, 0xD60003, 0xD00323,
+	0xCC0025, 0xCC4003, 0x800000, 0xD60003, 0xD00343, 0xCC0026, 0xCC4003,
+	0x800000, 0xD60003, 0x800000, 0xD6001F, 0x100EF,  0x200F4,  0x300F9,
+	0x50004,  0x600D6,  0x1000FE, 0x1700DB, 0x220009, 0x230016, 0x250022,
+	0x270061, 0x2D0073, 0x2E007D, 0x2F009C, 0x3700C8, 0x3800B3, 0x3B00A6,
+	0x3F00AA, 0x4800EB, 0x5000E1, 0x5100E6, 0x5500F0, 0x5600F5, 0x5700FA,
+	0x5D00D0, 6,	6,	6,	6,	6,	6,
+	6,
+};
+
+static uint32_t xenos_me_ucode[] = {
+	0,	  0xC0200400, 0,     0,	  0xA0000A,   0,
+	0x1F3,      0x204411,   0,     0x1000000,  0x204811,   0,
+	0,	  0x400000,   4,     0xFFFF,     0x284621,   0,
+	0,	  0xD9004800, 0,     0,	  0x400000,   0,
+	0,	  0x34E00000, 0,     0,	  0x600000,   0x24A,
+	0xFFFF,     0xC0280A20, 0,     0,	  0x294582,   0,
+	0,	  0xD9004800, 0,     0,	  0x400000,   0,
+	0,	  0x600000,   0x24A, 0xFFFF,     0xC0284620, 0,
+	0,	  0xD9004800, 0,     0,	  0x400000,   0,
+	0,	  0x600000,   0x267, 0x21FC,     0x29462C,   0,
+	0,	  0xC0204800, 0,     0,	  0x400000,   0,
+	0,	  0x600000,   0x267, 0x21FC,     0x29462C,   0,
+	0,	  0xC0204800, 0,     0x3FFF,     0x2F022F,   0,
+	0,	  0xCE00000,  0,     0xA1FD,     0x29462C,   0,
+	0,	  0xD9004800, 0,     0,	  0x400000,   0,
+	0x394,      0x204411,   0,     1,	  0xC0404811, 0,
+	0,	  0x600000,   0x267, 0x21F9,     0x29462C,   0,
+	8,	  0xC0210A20, 0,     0,	  0x14E00000, 0x25,
+	7,	  0x404811,   0,     8,	  0x404811,   0,
+	0,	  0x600000,   0x267, 0x21FC,     0x29462C,   0,
+	0,	  0xC0204800, 0,     0xA1FD,     0x29462C,   0,
+	0,	  0xC0200800, 0,     0,	  0x2F0222,   0,
+	0,	  0xCE00000,  0,     0,	  0x40204800, 0,
+	1,	  0x40304A20, 0,     2,	  0xC0304A20, 0,
+	1,	  0x530A22,   0x2B,  0x80000000, 0xC0204411, 0,
+	1,	  0x604811,   0x281, 0,	  0x400000,   0,
+	0,	  0xC0200000, 0,     0x12B9B0A1, 0xC02F0220, 0,
+	0,	  0xCC00000,  0x3A,  0x1033C4D6, 0xC02F0220, 0,
+	0,	  0xCC00000,  0x3A,  0,	  0x400000,   0,
+	0x1F3,      0x204411,   0,     0x8000000,  0x204811,   0,
+	0,	  0x400000,   0x3C,  0x80000000, 0xC0204411, 0,
+	0,	  0x604811,   0x281, 0,	  0x400000,   0,
+	0x1F,       0x40280A20, 0,     0x1B,       0x2F0222,   0,
+	0,	  0xCE00000,  0x57,  2,	  0x2F0222,   0,
+	0,	  0xCE00000,  0x5E,  3,	  0x2F0222,   0,
+	0,	  0xCE00000,  0x65,  4,	  0x2F0222,   0,
+	0,	  0xCE00000,  0x6C,  0x14,       0x2F0222,   0,
+	0,	  0xCE00000,  0x6C,  0x1A,       0x2F0222,   0,
+	0,	  0xCE00000,  0x74,  0x15,       0x2F0222,   0,
+	0,	  0xCE00000,  0x79,  0x21F9,     0x29462C,   0,
+	0,	  0xC0404802, 0,     0x1F,       0x40280A20, 0,
+	0x1B,       0x2F0222,   0,     0,	  0xCE00000,  0x57,
+	2,	  0x2F0222,   0,     0,	  0xCE00000,  0x5E,
+	0,	  0x400000,   0x65,  0x1F,       0xC0210E20, 0,
+	0x612,      0x204411,   0,     0,	  0x204803,   0,
+	0,	  0xC0204800, 0,     0,	  0xC0204800, 0,
+	0x21F9,     0x29462C,   0,     0,	  0x404802,   0,
+	0x1E,       0xC0210E20, 0,     0x600,      0x204411,   0,
+	0,	  0x204803,   0,     0,	  0xC0204800, 0,
+	0,	  0xC0204800, 0,     0x21F9,     0x29462C,   0,
+	0,	  0x404802,   0,     0x1E,       0xC0210E20, 0,
+	0x605,      0x204411,   0,     0,	  0x204803,   0,
+	0,	  0xC0204800, 0,     0,	  0xC0204800, 0,
+	0x21F9,     0x29462C,   0,     0,	  0x404802,   0,
+	0x1F,       0x40280A20, 0,     0x1F,       0xC0210E20, 0,
+	0x60A,      0x204411,   0,     0,	  0x204803,   0,
+	0,	  0xC0204800, 0,     0,	  0xC0204800, 0,
+	0x21F9,     0x29462C,   0,     0,	  0x404802,   0,
+	0x1F,       0xC0280A20, 0,     0x611,      0x204411,   0,
+	0,	  0xC0204800, 0,     0x21F9,     0x29462C,   0,
+	0,	  0x404802,   0,     0x1F,       0xC0280A20, 0,
+	0,	  0x600000,   0x267, 0x21F9,     0x29462C,   0,
+	0,	  0x404802,   0,     0x81000000, 0x204411,   0,
+	1,	  0x204811,   0,     0x1FFF,     0x40280A20, 0,
+	0x80000000, 0x40280E20, 0,     0x40000000, 0xC0281220, 0,
+	0x40000,    0x294622,   0,     0,	  0x600000,   0x282,
+	0,	  0x201410,   0,     0,	  0x2F0223,   0,
+	0,	  0xCC00000,  0x88,  0,	  0xC0401800, 0x8C,
+	0x1FFF,     0xC0281A20, 0,     0x40000,    0x294626,   0,
+	0,	  0x600000,   0x282, 0,	  0x201810,   0,
+	0,	  0x2F0224,   0,     0,	  0xCC00000,  0x8F,
+	0,	  0xC0401C00, 0x93,  0x1FFF,     0xC0281E20, 0,
+	0x40000,    0x294627,   0,     0,	  0x600000,   0x282,
+	0,	  0x201C10,   0,     0,	  0x204402,   0,
+	0,	  0x2820C5,   0,     0,	  0x4948E8,   0,
+	0,	  0x600000,   0x24A, 0x10,       0x40210A20, 0,
+	0xFF,       0x280A22,   0,     0x7FF,      0x40280E20, 0,
+	2,	  0x221E23,   0,     5,	  0xC0211220, 0,
+	0x80000,    0x281224,   0,     0x13,       0x210224,   0,
+	0,	  0x14C00000, 0xA1,  0xA1000000, 0x204411,   0,
+	0,	  0x204811,   0,     0,	  0x2F0222,   0,
+	0,	  0xCC00000,  0xA5,  8,	  0x20162D,   0,
+	0x4000,     0x500E23,   0xB4,  1,	  0x2F0222,   0,
+	0,	  0xCC00000,  0xA9,  9,	  0x20162D,   0,
+	0x4800,     0x500E23,   0xB4,  2,	  0x2F0222,   0,
+	0,	  0xCC00000,  0xAD,  0x37,       0x20162D,   0,
+	0x4900,     0x500E23,   0xB4,  3,	  0x2F0222,   0,
+	0,	  0xCC00000,  0xB1,  0x36,       0x20162D,   0,
+	0x4908,     0x500E23,   0xB4,  0x29,       0x20162D,   0,
+	0x2000,     0x300E23,   0,     0,	  0x290D83,   0,
+	0x94000000, 0x204411,   0,     0,	  0x2948E5,   0,
+	0,	  0x294483,   0,     0,	  0x40201800, 0,
+	0,	  0xD9004800, 0,     0x13,       0x210224,   0,
+	0,	  0x14C00000, 0,     0x94000000, 0x204411,   0,
+	0,	  0x2948E5,   0,     0x93000000, 0x204411,   0,
+	0,	  0x404806,   0,     0,	  0x600000,   0x24A,
+	0,	  0xC0200800, 0,     0,	  0xC0201400, 0,
+	0x1F,       0x211A25,   0,     0,	  0x14E00000, 0,
+	0x7FF,      0x280E25,   0,     0x10,       0x211225,   0,
+	0x83000000, 0x204411,   0,     0,	  0x2F0224,   0,
+	0,	  0xAE00000,  0xCB,  8,	  0x203622,   0,
+	0x4000,     0x504A23,   0xDA,  1,	  0x2F0224,   0,
+	0,	  0xAE00000,  0xCF,  9,	  0x203622,   0,
+	0x4800,     0x504A23,   0xDA,  2,	  0x2F0224,   0,
+	0,	  0xAE00000,  0xD3,  0x37,       0x203622,   0,
+	0x4900,     0x504A23,   0xDA,  3,	  0x2F0224,   0,
+	0,	  0xAE00000,  0xD7,  0x36,       0x203622,   0,
+	0x4908,     0x504A23,   0xDA,  0x29,       0x203622,   0,
+	0,	  0x290D83,   0,     0x2000,     0x304A23,   0,
+	0x84000000, 0x204411,   0,     0,	  0xC0204800, 0,
+	0,	  0x21000000, 0,     0,	  0x400000,   0xC1,
+	0,	  0x600000,   0x24A, 0x83000000, 0x204411,   0,
+	0x4000,     0xC0304A20, 0,     0x84000000, 0x204411,   0,
+	0,	  0xC0204800, 0,     0,	  0x21000000, 0,
+	0,	  0x400000,   0,     0x81000000, 0x204411,   0,
+	1,	  0x204811,   0,     0x40578,    0x204411,   0,
+	0,	  0x600000,   0x282, 0,	  0xC0400000, 0,
+	0,	  0xC0200C00, 0,     0,	  0xC0201000, 0,
+	0,	  0xC0201400, 0,     0,	  0xC0201800, 0,
+	0x7F00,     0x280A21,   0,     0x4500,     0x2F0222,   0,
+	0,	  0xCE00000,  0xF2,  0,	  0xC0201C00, 0,
+	0,	  0x17000000, 0,     0x10,       0x280A23,   0,
+	0x10,       0x2F0222,   0,     0,	  0xCE00000,  0xFB,
+	0x81000000, 0x204411,   0,     1,	  0x204811,   0,
+	0x40000,    0x294624,   0,     0,	  0x600000,   0x282,
+	0,	  0x400000,   0x103, 0x81000000, 0x204411,   0,
+	0,	  0x204811,   0,     0x1EA,      0x204411,   0,
+	0,	  0x204804,   0,     0,	  0x1AC00000, 0xFF,
+	0x9E000000, 0x204411,   0,     0xDEADBEEF, 0x204811,   0,
+	0,	  0x1AE00000, 0x102, 0,	  0x2820D0,   0,
+	7,	  0x280A23,   0,     1,	  0x2F0222,   0,
+	0,	  0xAE00000,  0x10A, 0,	  0x2F00A8,   0,
+	0,	  0x4E00000,  0x123, 0,	  0x400000,   0x12A,
+	2,	  0x2F0222,   0,     0,	  0xAE00000,  0x10F,
+	0,	  0x2F00A8,   0,     0,	  0x2E00000,  0x123,
+	0,	  0x400000,   0x12A, 3,	  0x2F0222,   0,
+	0,	  0xAE00000,  0x114, 0,	  0x2F00A8,   0,
+	0,	  0xCE00000,  0x123, 0,	  0x400000,   0x12A,
+	4,	  0x2F0222,   0,     0,	  0xAE00000,  0x119,
+	0,	  0x2F00A8,   0,     0,	  0xAE00000,  0x123,
+	0,	  0x400000,   0x12A, 5,	  0x2F0222,   0,
+	0,	  0xAE00000,  0x11E, 0,	  0x2F00A8,   0,
+	0,	  0x6E00000,  0x123, 0,	  0x400000,   0x12A,
+	6,	  0x2F0222,   0,     0,	  0xAE00000,  0x123,
+	0,	  0x2F00A8,   0,     0,	  0x8E00000,  0x123,
+	0,	  0x400000,   0x12A, 0x7F00,     0x280A21,   0,
+	0x4500,     0x2F0222,   0,     0,	  0xAE00000,  0,
+	8,	  0x210A23,   0,     0,	  0x14E00000, 0x14A,
+	0,	  0xC0204400, 0,     0,	  0xC0404800, 0,
+	0x7F00,     0x280A21,   0,     0x4500,     0x2F0222,   0,
+	0,	  0xAE00000,  0x12F, 0,	  0xC0200000, 0,
+	0,	  0xC0400000, 0,     0,	  0x404C07,   0xF2,
+	0,	  0xC0201000, 0,     0,	  0xC0201400, 0,
+	0,	  0xC0201800, 0,     0,	  0xC0201C00, 0,
+	0,	  0x17000000, 0,     0x81000000, 0x204411,   0,
+	1,	  0x204811,   0,     0x40000,    0x294624,   0,
+	0,	  0x600000,   0x282, 0,	  0x2820D0,   0,
+	0,	  0x2F00A8,   0,     0,	  0xCE00000,  0,
+	0,	  0x404C07,   0x134, 0,	  0xC0201000, 0,
+	0,	  0xC0201400, 0,     0,	  0xC0201800, 0,
+	0,	  0xC0201C00, 0,     0,	  0x17000000, 0,
+	0x81000000, 0x204411,   0,     1,	  0x204811,   0,
+	0x40000,    0x294624,   0,     0,	  0x600000,   0x282,
+	0,	  0x2820D0,   0,     0,	  0x2F00A8,   0,
+	0,	  0x6E00000,  0,     0,	  0x404C07,   0x141,
+	0x60D,      0x204411,   0,     0,	  0xC0204800, 0,
+	0,	  0xC0404800, 0,     0x81000000, 0x204411,   0,
+	9,	  0x204811,   0,     0x60D,      0x204411,   0,
+	0,	  0xC0204800, 0,     0,	  0x404810,   0,
+	0x1FFF,     0xC0280A20, 0,     0x20000,    0x294622,   0,
+	0x18,       0xC0424A20, 0,     0x81000000, 0x204411,   0,
+	1,	  0x204811,   0,     0x40000,    0xC0294620, 0,
+	0,	  0x600000,   0x282, 0x60D,      0x204411,   0,
+	0,	  0xC0204800, 0,     0,	  0x404810,   0,
+	0x1F3,      0x204411,   0,     0xE0000000, 0xC0484A20, 0,
+	0,	  0xD9000000, 0,     0,	  0x400000,   0,
+	0x45D,      0x204411,   0,     0x3F,       0xC0484A20, 0,
+	0,	  0x600000,   0x24A, 0x81000000, 0x204411,   0,
+	2,	  0x204811,   0,     0xFF,       0x280E30,   0,
+	0,	  0x2F0223,   0,     0,	  0xCC00000,  0x165,
+	0,	  0x200411,   0,     0x1D,       0x203621,   0,
+	0x1E,       0x203621,   0,     0,	  0xC0200800, 0,
+	9,	  0x210222,   0,     0,	  0x14C00000, 0x171,
+	0,	  0x600000,   0x275, 0,	  0x200C11,   0,
+	0x38,       0x203623,   0,     0,	  0x210A22,   0,
+	0,	  0x14C00000, 0x17A, 0,	  0xC02F0220, 0,
+	0,	  0x400000,   0x177, 0,	  0x600000,   0x1D8,
+	0,	  0x400000,   0x178, 0,	  0x600000,   0x1DC,
+	0xA0000000, 0x204411,   0,     0,	  0x204811,   0,
+	1,	  0x210A22,   0,     0,	  0x14C00000, 0x17F,
+	0xF1FFFFFF, 0x283A2E,   0,     0x1A,       0xC0220E20, 0,
+	0,	  0x29386E,   0,     1,	  0x210A22,   0,
+	0,	  0x14C00000, 0x189, 0xE,	0xC0203620, 0,
+	0xF,	0xC0203620, 0,     0x10,       0xC0203620, 0,
+	0x11,       0xC0203620, 0,     0x12,       0xC0203620, 0,
+	0x13,       0xC0203620, 0,     0x14,       0xC0203620, 0,
+	0x15,       0xC0203620, 0,     1,	  0x210A22,   0,
+	0,	  0x14C00000, 0x1AC, 0,	  0xC0200C00, 0,
+	0x8C000000, 0x204411,   0,     0,	  0x204803,   0,
+	0xFFF,      0x281223,   0,     0x19,       0x203624,   0,
+	3,	  0x381224,   0,     0x5000,     0x301224,   0,
+	0x18,       0x203624,   0,     0x87000000, 0x204411,   0,
+	0,	  0x204804,   0,     1,	  0x331224,   0,
+	0x86000000, 0x204411,   0,     0,	  0x204804,   0,
+	0x88000000, 0x204411,   0,     0x7FFF,     0x204811,   0,
+	0x10,       0x211623,   0,     0xFFF,      0x281A23,   0,
+	0,	  0x331CA6,   0,     0x8F000000, 0x204411,   0,
+	3,	  0x384A27,   0,     0x10,       0x211223,   0,
+	0x17,       0x203624,   0,     0x8B000000, 0x204411,   0,
+	0,	  0x204804,   0,     3,	  0x381224,   0,
+	0x5000,     0x301224,   0,     0x16,       0x203624,   0,
+	0x85000000, 0x204411,   0,     0,	  0x204804,   0,
+	0x1000,     0x331CD1,   0,     0x90000000, 0x204411,   0,
+	3,	  0x384A27,   0,     0x300000,   0x293A2E,   0,
+	1,	  0x210A22,   0,     0,	  0x14C00000, 0x1B9,
+	0xA3000000, 0x204411,   0,     0,	  0x40204800, 0,
+	0xA,	0xC0220E20, 0,     0x21,       0x203623,   0,
+	0,	  0x600000,   0x1DC, 0xFFFFE000, 0x200411,   0,
+	0x2E,       0x203621,   0,     0x2F,       0x203621,   0,
+	0x1FFF,     0x200411,   0,     0x30,       0x203621,   0,
+	0x31,       0x203621,   0,     1,	  0x210A22,   0,
+	0,	  0x14C00000, 0x1BC, 0,	  0xC0200000, 0,
+	1,	  0x210A22,   0,     0,	  0x14C00000, 0x1C2,
+	0x9C000000, 0x204411,   0,     0x1F,       0x40214A20, 0,
+	0x96000000, 0x204411,   0,     0,	  0xC0204800, 0,
+	1,	  0x210A22,   0,     0,	  0x14C00000, 0x1CB,
+	0x3FFFFFFF, 0x283A2E,   0,     0xC0000000, 0x40280E20, 0,
+	0,	  0x29386E,   0,     0x18000000, 0x40280E20, 0,
+	0x38,       0x203623,   0,     0xA4000000, 0x204411,   0,
+	0,	  0xC0204800, 0,     1,	  0x210A22,   0,
+	0,	  0x14C00000, 0x1D7, 0,	  0xC0200C00, 0,
+	0x2B,       0x203623,   0,     0x2D,       0x203623,   0,
+	2,	  0x40221220, 0,     0,	  0x301083,   0,
+	0x2C,       0x203624,   0,     3,	  0xC0210E20, 0,
+	0x10000000, 0x280E23,   0,     0xEFFFFFFF, 0x283A2E,   0,
+	0,	  0x29386E,   0,     0,	  0x400000,   0,
+	0x25F4,     0x204411,   0,     0xA,	0x214A2C,   0,
+	0,	  0x600000,   0x273, 0,	  0x800000,   0,
+	0x21F4,     0x204411,   0,     0xA,	0x214A2C,   0,
+	0,	  0x600000,   0x275, 0,	  0x800000,   0,
+	0,	  0x600000,   0x24A, 0,	  0xC0200800, 0,
+	0x1F,       0x210E22,   0,     0,	  0x14E00000, 0,
+	0x3FF,      0x280E22,   0,     0x18,       0x211222,   0,
+	0xE,	0x301224,   0,     0,	  0x20108D,   0,
+	0x2000,     0x291224,   0,     0x83000000, 0x204411,   0,
+	0,	  0x294984,   0,     0x84000000, 0x204411,   0,
+	0,	  0x204803,   0,     0,	  0x21000000, 0,
+	0,	  0x400000,   0x1E1, 0x82000000, 0x204411,   0,
+	1,	  0x204811,   0,     0,	  0xC0200800, 0,
+	0x3FFF,     0x40280E20, 0,     0x10,       0xC0211220, 0,
+	0,	  0x2F0222,   0,     0,	  0xAE00000,  0x1FE,
+	0,	  0x2AE00000, 0x208, 0x20000080, 0x281E2E,   0,
+	0x80,       0x2F0227,   0,     0,	  0xCE00000,  0x1FB,
+	0,	  0x401C0C,   0x1FC, 0x20,       0x201E2D,   0,
+	0x21F9,     0x294627,   0,     0,	  0x404811,   0x208,
+	1,	  0x2F0222,   0,     0,	  0xAE00000,  0x23D,
+	0,	  0x28E00000, 0x208, 0x800080,   0x281E2E,   0,
+	0x80,       0x2F0227,   0,     0,	  0xCE00000,  0x205,
+	0,	  0x401C0C,   0x206, 0x20,       0x201E2D,   0,
+	0x21F9,     0x294627,   0,     1,	  0x204811,   0,
+	0x81000000, 0x204411,   0,     0,	  0x2F0222,   0,
+	0,	  0xAE00000,  0x20F, 3,	  0x204811,   0,
+	0x16,       0x20162D,   0,     0x17,       0x201A2D,   0,
+	0xFFDFFFFF, 0x483A2E,   0x213, 4,	  0x204811,   0,
+	0x18,       0x20162D,   0,     0x19,       0x201A2D,   0,
+	0xFFEFFFFF, 0x283A2E,   0,     0,	  0x201C10,   0,
+	0,	  0x2F0067,   0,     0,	  0x6C00000,  0x208,
+	0x81000000, 0x204411,   0,     6,	  0x204811,   0,
+	0x83000000, 0x204411,   0,     0,	  0x204805,   0,
+	0x89000000, 0x204411,   0,     0,	  0x204806,   0,
+	0x84000000, 0x204411,   0,     0,	  0x204803,   0,
+	0,	  0x21000000, 0,     0,	  0x601010,   0x24A,
+	0xC,	0x221E24,   0,     0,	  0x2F0222,   0,
+	0,	  0xAE00000,  0x230, 0x20000000, 0x293A2E,   0,
+	0x21F7,     0x29462C,   0,     0,	  0x2948C7,   0,
+	0x81000000, 0x204411,   0,     5,	  0x204811,   0,
+	0x16,       0x203630,   0,     7,	  0x204811,   0,
+	0x17,       0x203630,   0,     0x91000000, 0x204411,   0,
+	0,	  0x204803,   0,     0,	  0x23000000, 0,
+	0x8D000000, 0x204411,   0,     0,	  0x404803,   0x243,
+	0x800000,   0x293A2E,   0,     0x21F6,     0x29462C,   0,
+	0,	  0x2948C7,   0,     0x81000000, 0x204411,   0,
+	5,	  0x204811,   0,     0x18,       0x203630,   0,
+	7,	  0x204811,   0,     0x19,       0x203630,   0,
+	0x92000000, 0x204411,   0,     0,	  0x204803,   0,
+	0,	  0x25000000, 0,     0x8E000000, 0x204411,   0,
+	0,	  0x404803,   0x243, 0x83000000, 0x204411,   0,
+	3,	  0x381224,   0,     0x5000,     0x304A24,   0,
+	0x84000000, 0x204411,   0,     0,	  0x204803,   0,
+	0,	  0x21000000, 0,     0x82000000, 0x204411,   0,
+	0,	  0x404811,   0,     0x1F3,      0x204411,   0,
+	0x4000000,  0x204811,   0,     0,	  0x400000,   0x247,
+	0,	  0xC0600000, 0x24A, 0,	  0x400000,   0,
+	0,	  0xEE00000,  0x281, 0x21F9,     0x29462C,   0,
+	5,	  0x204811,   0,     0,	  0x202C0C,   0,
+	0x21,       0x20262D,   0,     0,	  0x2F012C,   0,
+	0,	  0xCC00000,  0x252, 0,	  0x403011,   0x253,
+	0x400,      0x30322C,   0,     0x81000000, 0x204411,   0,
+	2,	  0x204811,   0,     0xA,	0x21262C,   0,
+	0,	  0x210130,   0,     0,	  0x14C00000, 0x25B,
+	0xA5000000, 0x204411,   0,     1,	  0x204811,   0,
+	0,	  0x400000,   0x256, 0xA5000000, 0x204411,   0,
+	0,	  0x204811,   0,     0,	  0x2F016C,   0,
+	0,	  0xCE00000,  0x263, 0x21F4,     0x29462C,   0,
+	0xA,	0x214A2B,   0,     0x4940,     0x204411,   0,
+	0xDEADBEEF, 0x204811,   0,     0,	  0x600000,   0x26E,
+	0xDFFFFFFF, 0x283A2E,   0,     0xFF7FFFFF, 0x283A2E,   0,
+	0x20,       0x80362B,   0,     0x97000000, 0x204411,   0,
+	0,	  0x20480C,   0,     0xA2000000, 0x204411,   0,
+	0,	  0x204811,   0,     0x81000000, 0x204411,   0,
+	2,	  0x204811,   0,     0,	  0x810130,   0,
+	0xA2000000, 0x204411,   0,     1,	  0x204811,   0,
+	0x81000000, 0x204411,   0,     2,	  0x204811,   0,
+	0,	  0x810130,   0,     0x400,      0x203011,   0,
+	0x20,       0x80362C,   0,     0,	  0x203011,   0,
+	0x20,       0x80362C,   0,     0x1F,       0x201E2D,   0,
+	4,	  0x291E27,   0,     0x1F,       0x803627,   0,
+	0x21F9,     0x29462C,   0,     6,	  0x204811,   0,
+	0x5C8,      0x204411,   0,     0x10000,    0x204811,   0,
+	0xE00,      0x204411,   0,     1,	  0x804811,   0,
+	0,	  0xC0400000, 0,     0,	  0x800000,   0,
+	0,	  0x1AC00000, 0x282, 0x9F000000, 0x204411,   0,
+	0xDEADBEEF, 0x204811,   0,     0,	  0x1AE00000, 0x285,
+	0,	  0x800000,   0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0,	  0,		0,     0,	  0,	  0,
+	0x2015E,    0x20002,    0,     0x20002,    0x3D0031,   0,
+	0x20002,    0x20002,    0,     0x20002,    0x1E00002,  0,
+	0x7D01F1,   0x200012,   0,     0x20002,    0x2001E,    0,
+	0x20002,    0x1EF0002,  0,     0x960002,   0xDE0002,   0,
+	0x20002,    0x20002,    0,     0x20002,    0x20016,    0,
+	0x20002,    0x20026,    0,     0x14A00EA,  0x20155,    0,
+	0x2015C,    0x15E0002,  0,     0xEA0002,   0x15E0040,  0,
+	0xBF0162,   0x20002,    0,     0x1520002,  0x14D0002,  0,
+	0x20002,    0x13D0130,  0,     0x90160,    0xE000E,    0,
+	0x6C0051,   0x790074,   0,     0x200E5,    0x20248,    0,
+	0x20002,    0x20002,    0,     0x20002,    0x20002,    0,
+	0x20002,    0x20002,    0,     0x20002,    0x20002,    0,
+	0x20002,    0x20002,    0,     0x20002,    0x20002,    0,
+	0x20002,    0x20002,    0,     0x50280,    0x20008,    0,
+};
+
+static struct {
+    void __iomem *graphics_base;
+
+    struct circ_buf primary_rb;
+    int rb_size;
+
+    spinlock_t gfx_lock;
+    spinlock_t write_lock;
+} xenosrb_info;
+
+/**
+ *	xenosrb_reset_ring - Resets ring read/write pointers to 0
+ *  Preferably you would call this with interrupts disabled.
+ */
+static void xenosrb_reset_ring(void)
+{
+	int rb_cntl;
+
+	rb_cntl = in_be32(xenosrb_info.graphics_base + 0x0704);
+
+	/* CP_RB_CNTL.RB_RPTR_WR_ENA = 1 */
+	out_be32(xenosrb_info.graphics_base + 0x0704, rb_cntl | 0x80000000);
+
+	out_be32(xenosrb_info.graphics_base + 0x071C, 0x00000000); /* CP_RB_RPTR_WR */
+	out_be32(xenosrb_info.graphics_base + 0x0714, 0x00000000); /* CP_RB_WPTR */
+	udelay(1000);
+
+	/* CP_RB_CNTL.RB_RPTR_WR_ENA = 0 */
+	out_be32(xenosrb_info.graphics_base + 0x0704, rb_cntl);
+}
+
+static void xenosrb_setup_ring(void *buffer_base, size_t buffer_size)
+{
+	/* CP_RB_CNTL */
+	/* RB_NO_UPDATE = 1 */
+	/* BUF_SWAP = 2 */
+	out_be32(xenosrb_info.graphics_base + 0x0704,
+		 0x08020000 | (ilog2(buffer_size >> 3) & 0xFF));
+
+	/* CP_RB_BASE */
+	out_be32(xenosrb_info.graphics_base + 0x0700,
+		 virt_to_phys(buffer_base));
+}
+
+/**
+ *	xenosrb_wait_gui_idle - Waits for GUI idle or timeout
+ *	@timeout_jiffies: maximum number of jiffies to wait
+ *
+ *	Returns 0 on success, or %ETIME on timeout.
+ */
+static int xenosrb_wait_gui_idle(unsigned long timeout_jiffies)
+{
+	unsigned long start_jiffy = jiffies;
+
+	/* RBBM_STATUS.GUI_ACTIVE */
+	while (in_be32(xenosrb_info.graphics_base + 0x1740) & 0x80000000) {
+		if (jiffies - start_jiffy > timeout_jiffies) {
+			return -ETIME;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ *	xenosrb_upload_pfp_ucode - Upload and verify Prefetch Parser microcode
+ *	@ucode: pointer to microcode buffer
+ *  
+ *  Preferably you would call this with interrupts disabled.
+ *
+ *	Returns 0 on success, or %EIO on verification failure.
+ */
+static int xenosrb_upload_pfp_ucode(const uint32_t *ucode, size_t size)
+{
+	size_t i;
+
+	out_be32(xenosrb_info.graphics_base + 0x117C, 0); /* CP_PFP_UCODE_ADDR */
+	udelay(100);
+
+	/* Write to CP_PFP_UCODE_DATA */
+	for (i = 0; i < size; i++)
+		out_be32(xenosrb_info.graphics_base + 0x1180, ucode[i]);
+
+	/* Readback */
+	out_be32(xenosrb_info.graphics_base + 0x117C, 0); /* CP_PFP_UCODE_ADDR */
+	udelay(100);
+
+	for (i = 0; i < size; i++) {
+		/* Verification doesn't work, as the GPU appears to ignore
+		 * CP_PFP_UCODE_ADDR and returns data at an offset :\ */
+		in_be32(xenosrb_info.graphics_base + 0x1180);
+	}
+
+	return 0;
+}
+
+/**
+ *	xenosrb_upload_me_ucode - Upload and verify ME microcode
+ *	@ucode: pointer to microcode buffer
+ *  
+ *  Preferably you would call this with interrupts disabled.
+ *
+ *	Returns 0 on success, or %EIO on verification failure.
+ */
+static int xenosrb_upload_me_ucode(const uint32_t *ucode, size_t size)
+{
+	size_t i;
+
+	out_be32(xenosrb_info.graphics_base + 0x07E0, 0); /* CP_ME_RAM_WADDR */
+	udelay(100);
+
+	/* Write to CP_ME_RAM_DATA */
+	for (i = 0; i < size; i++)
+		out_be32(xenosrb_info.graphics_base + 0x07E8, ucode[i]);
+
+	/* Readback and verify from CP_ME_RAM_DATA */
+	out_be32(xenosrb_info.graphics_base + 0x07E4, 0); /* CP_ME_RAM_RADDR */
+	udelay(100);
+
+	for (i = 0; i < size; i++) {
+		if (in_be32(xenosrb_info.graphics_base + 0x07E8) != ucode[i]) {
+			printk(KERN_ERR
+			       "%s: failed to verify me microcode @ dword %zu\n",
+			       __func__, i);
+			return -EIO;
+		}
+	}
+
+	return 0;
+}
+
+static int xenosrb_setup(void *buffer_base, size_t buffer_size)
+{
+	int rc = 0;
+
+	out_be32(xenosrb_info.graphics_base + 0x07D8, 0x1000FFFF); /* CP_ME_CNTL.ME_HALT = 1 */
+	udelay(1000);
+
+	xenosrb_reset_ring();
+	xenosrb_setup_ring(buffer_base, buffer_size);
+
+	rc = xenosrb_upload_pfp_ucode(xenos_pfp_ucode,
+				      ARRAY_SIZE(xenos_pfp_ucode));
+	if (rc) {
+		return rc;
+	}
+
+	rc = xenosrb_upload_me_ucode(xenos_me_ucode,
+				     ARRAY_SIZE(xenos_me_ucode));
+	if (rc) {
+		return rc;
+	}
+
+	xenosrb_wait_gui_idle(HZ / 4);
+
+	out_be32(xenosrb_info.graphics_base + 0x07D8, 0x0000FFFF); /* CP_ME_CNTL.ME_HALT = 0 */
+	out_be32(xenosrb_info.graphics_base + 0x07D0, 0x0000FFFF); /* CP_INT_ACK.RTS[0..15]ACK = 1 */
+	out_be32(xenosrb_info.graphics_base + 0x07F0, 0x00000000); /* CP_DEBUG */
+	out_be32(xenosrb_info.graphics_base + 0x07D8, 0x1000FFFF); /* CP_ME_CNTL.ME_HALT = 1 */
+
+	udelay(2000);
+	out_be32(xenosrb_info.graphics_base + 0x00F0, 0x00000001); /* RBBM_SOFT_RESET.SOFT_RESET_CP = 1 */
+	udelay(1000);
+	out_be32(xenosrb_info.graphics_base + 0x00F0, 0x00000000); /* RBBM_SOFT_RESET.SOFT_RESET_CP = 0 */
+	udelay(1000);
+
+	rc = xenosrb_wait_gui_idle(HZ / 4);
+	if (rc) {
+		printk(KERN_ERR "%s: timed out waiting for GUI idle (reset)\n", __func__);
+		return rc;
+	}
+
+	xenosrb_setup_ring(buffer_base, buffer_size);
+	out_be32(xenosrb_info.graphics_base + 0x07D8, 0x0000FFFF); /* CP_ME_CNTL.ME_HALT = 0 */
+
+	rc = xenosrb_wait_gui_idle(HZ / 4);
+	if (rc) {
+		printk(KERN_ERR "%s: timed out waiting for GUI idle (final)\n", __func__);
+		return rc;
+	}
+
+	return 0;
+}
+
+static void xenosrb_shutdown(void)
+{
+	out_be32(xenosrb_info.graphics_base + 0x07D8, 0x10000000); /* CP_ME_CNTL.ME_HALT = 1 */
+    out_be32(xenosrb_info.graphics_base + 0x0704, 0x00000000); /* CP_RB_CNTL */
+    out_be32(xenosrb_info.graphics_base + 0x0700, 0x00000000); /* CP_RB_BASE */
+	xenosrb_reset_ring();
+}
+
+static irqreturn_t xenos_interrupt(int irq, void* dev)
+{
+	return IRQ_HANDLED;
+}
+
+static ssize_t xenosrb_write(struct file *file, const char __user *buf,
+			     size_t count, loff_t *ppos)
+{
+	struct circ_buf *primary_rb = &xenosrb_info.primary_rb;
+	size_t space;
+	size_t trail_space;
+	int head_ptr;
+	unsigned long flags;
+
+	if (*ppos || (count & 0x3) != 0x0)
+		return -EINVAL;
+
+	spin_lock(&xenosrb_info.write_lock);
+	space = CIRC_SPACE(primary_rb->head, primary_rb->tail,
+			   xenosrb_info.rb_size);
+	if (space <= count) {
+		/* Update the head pointer and check again */
+		primary_rb->tail = in_be32(xenosrb_info.graphics_base + 0x0710) / 4;
+
+		space = CIRC_SPACE(primary_rb->head, primary_rb->tail,
+				   xenosrb_info.rb_size);
+
+		if (space < count) {
+			spin_unlock(&xenosrb_info.write_lock);
+			return -EBUSY;
+		}
+	}
+
+	trail_space = CIRC_SPACE_TO_END(primary_rb->head, primary_rb->tail,
+					xenosrb_info.rb_size);
+
+	/* Copy bytes to end of ringbuffer */
+	if (copy_from_user(primary_rb->buf + primary_rb->head, buf,
+			   min(trail_space, count))) {
+		spin_unlock(&xenosrb_info.write_lock);
+		return -EFAULT;
+	}
+
+	head_ptr = primary_rb->head + min(trail_space, count);
+
+	if (trail_space < count) {
+		/* Wrap around, copy bytes to beginning of ring buffer. */
+		if (copy_from_user(primary_rb->buf, buf + trail_space,
+				   count - trail_space)) {
+			spin_unlock(&xenosrb_info.write_lock);
+			return -EFAULT;
+		}
+
+		head_ptr = count - trail_space;
+	}
+
+	/* Update our tail pointer. */
+	primary_rb->head = head_ptr & (xenosrb_info.rb_size - 1);
+
+	/* Flush the CPU cache. */
+	flush_dcache_range((uintptr_t)primary_rb->buf,
+			   (uintptr_t)primary_rb->buf + xenosrb_info.rb_size);
+
+	spin_lock_irqsave(&xenosrb_info.gfx_lock, flags);
+	out_be32(xenosrb_info.graphics_base + 0x0714,
+		 primary_rb->head / 4); /* CP_RB_WPTR */
+	spin_unlock_irqrestore(&xenosrb_info.gfx_lock, flags);
+
+	spin_unlock(&xenosrb_info.write_lock);
+	return count;
+}
+
+static long xenosrb_ioctl(struct file *file, unsigned int cmd,
+			  unsigned long arg)
+{
+	unsigned long flags;
+
+	switch (cmd) {
+	case IOCTL_RESET:
+		spin_lock_irqsave(&xenosrb_info.gfx_lock, flags);
+
+		out_be32(xenosrb_info.graphics_base + 0x07D8, 0x1000FFFF); /* CP_ME_CNTL.ME_HALT = 1 */
+		xenosrb_reset_ring();
+		xenosrb_info.primary_rb.head = 0;
+		xenosrb_info.primary_rb.tail = 0;
+		out_be32(xenosrb_info.graphics_base + 0x07D8, 0x0000FFFF); /* CP_ME_CNTL.ME_HALT = 0 */
+
+		spin_unlock_irqrestore(&xenosrb_info.gfx_lock, flags);
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static const struct file_operations xenos_fops = {
+	.write = xenosrb_write,
+	.open = nonseekable_open,
+    .unlocked_ioctl = xenosrb_ioctl,
+};
+
+static struct miscdevice xenosrb_dev = {
+	.minor =  MISC_DYNAMIC_MINOR,
+	"xenosrb",
+	&xenos_fops
+};
+
+static int xenosrb_probe(struct pci_dev *dev,
+			 const struct pci_device_id *dev_id)
+{
+	unsigned long flags;
+	unsigned long mmio_start, mmio_len, mmio_flags;
+	int rc = 0;
+
+	if (!dev) {
+		return -EINVAL;
+	}
+
+	if ((rc = pci_enable_device(dev))) {
+		goto err_out;
+	}
+
+	mmio_flags = pci_resource_flags(dev, 0);
+	if (!(mmio_flags & IORESOURCE_MEM)) {
+		dev_err(&dev->dev,
+			"%s: region #0 is not a MEM resource, abort!",
+			__func__);
+		rc = -ENODEV;
+		goto err_release_pci_device;
+	}
+
+	mmio_start = pci_resource_start(dev, 0);
+	mmio_len = pci_resource_len(dev, 0);
+
+	/* We're going to request all regions, even though there's only one. */
+	if (!mmio_len || (rc = pci_request_regions(dev, dev->dev.kobj.name))) {
+		dev_err(&dev->dev,
+			"%s: failed to request I/O regions (code %d)", __func__,
+			rc);
+		rc = -EBUSY;
+		goto err_release_pci_device;
+	}
+
+	xenosrb_info.graphics_base = ioremap(mmio_start, mmio_len);
+	if (!xenosrb_info.graphics_base) {
+		printk(KERN_ERR "%s: failed to ioremap gfx regs\n", __func__);
+		rc = -EIO;
+		goto err_release_pci_regions;
+	}
+
+	rc = misc_register(&xenosrb_dev);
+	if (rc) {
+		goto err_release_reg;
+	}
+
+	xenosrb_info.rb_size = 1 << (ilog2(xenosrb_size) & 0xFF);
+	xenosrb_info.primary_rb.buf = kzalloc(xenosrb_info.rb_size, GFP_KERNEL);
+	if (!xenosrb_info.primary_rb.buf) {
+		rc = -ENOMEM;
+		goto err_unregister_dev;
+	}
+
+	spin_lock_init(&xenosrb_info.gfx_lock);
+	spin_lock_init(&xenosrb_info.write_lock);
+
+	/* Setup the ringbuffer with interrupts disabled */
+	spin_lock_irqsave(&xenosrb_info.gfx_lock, flags);
+
+	if (xenosrb_setup(xenosrb_info.primary_rb.buf, xenosrb_info.rb_size)) {
+		spin_unlock_irqrestore(&xenosrb_info.gfx_lock, flags);
+		rc = -EIO;
+		goto err_free_rb;
+	}
+
+	xenosrb_info.primary_rb.head = 0;
+	xenosrb_info.primary_rb.tail = 0;
+
+	/* CP_RB_WPTR_DELAY */
+	out_be32(xenosrb_info.graphics_base + 0x0718, 0x0010);
+
+	spin_unlock_irqrestore(&xenosrb_info.gfx_lock, flags);
+
+	rc = request_irq(dev->irq, xenos_interrupt, IRQF_SHARED, "Xenos", dev);
+	if (rc) {
+		printk(KERN_ERR "%s: failed to request IRQ 0x%.2X\n", __func__,
+		       dev->irq);
+	}
+
+	printk("XenosRB Character Driver Initialized, ring size = %d\n",
+	       xenosrb_info.rb_size);
+	return 0;
+
+	xenosrb_reset_ring();
+err_free_rb:
+	kfree(xenosrb_info.primary_rb.buf);
+err_unregister_dev:
+	misc_deregister(&xenosrb_dev);
+err_release_reg:
+	iounmap(xenosrb_info.graphics_base);
+err_release_pci_regions:
+	pci_release_regions(dev);
+err_release_pci_device:
+	pci_disable_device(dev);
+err_out:
+	return rc;
+}
+
+static void xenosrb_remove(struct pci_dev *dev)
+{
+	unsigned long flags;
+
+	disable_irq(dev->irq);
+	free_irq(dev->irq, dev);
+	misc_deregister(&xenosrb_dev);
+
+	spin_lock_irqsave(&xenosrb_info.gfx_lock, flags);
+	xenosrb_shutdown();
+
+	spin_unlock_irqrestore(&xenosrb_info.gfx_lock, flags);
+
+	kfree(xenosrb_info.primary_rb.buf);
+	iounmap(xenosrb_info.graphics_base);
+	pci_release_regions(dev);
+}
+
+#define XENOSRB_CHR_DEV_NAME "xenos_rb"
+
+static const struct pci_device_id xenos_pci_tbl[] = {
+	{PCI_VDEVICE(MICROSOFT, 0x5811), 0}, /* xenon */
+	{PCI_VDEVICE(MICROSOFT, 0x5821), 0}, /* zephyr/falcon */
+	{PCI_VDEVICE(MICROSOFT, 0x5831), 0}, /* jasper */
+	{PCI_VDEVICE(MICROSOFT, 0x5841), 0}, /* slim */
+
+	{} /* terminate list */
+};
+
+static struct pci_driver xenosrb_pci = {
+	.name = "xenos_rb",
+	.id_table = xenos_pci_tbl,
+	.probe = xenosrb_probe,
+	.remove = xenosrb_remove,
+};
+
+static int __init xenosrb_init(void)
+{
+	int rc;
+
+	if ((rc = pci_register_driver(&xenosrb_pci))) {
+		printk(KERN_ERR "%s: pci_register_driver failed with %d",
+		       __func__, rc);
+		goto err_out;
+	}
+
+	return 0;
+
+err_out:
+	return rc;
+}
+
+static void __exit xenosrb_exit(void)
+{
+	pci_unregister_driver(&xenosrb_pci);
+}
+
+module_init(xenosrb_init);
+module_exit(xenosrb_exit);
+
+MODULE_AUTHOR("Justin Moore <arkolbed@gmail.com>");
+MODULE_DESCRIPTION("Ring Buffer Driver for Xenos GPU");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
diff -NurpP --minimal linux-5.12/drivers/hwmon/Kconfig linux-5.12-xenon/drivers/hwmon/Kconfig
--- linux-5.12/drivers/hwmon/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/hwmon/Kconfig	2021-06-01 21:43:02.559664567 +0200
@@ -2147,6 +2147,13 @@ config SENSORS_INTEL_M10_BMC_HWMON
 	  sensors monitor various telemetry data of different components on the
 	  card, e.g. board temperature, FPGA core temperature/voltage/current.
 
+config SENSORS_XENON
+	tristate "Xenon SMC"
+	depends on PPC_XENON
+	help
+	  This driver provides support for the Xenon SMC sensors and
+	  fan control.
+
 if ACPI
 
 comment "ACPI drivers"
diff -NurpP --minimal linux-5.12/drivers/hwmon/Makefile linux-5.12-xenon/drivers/hwmon/Makefile
--- linux-5.12/drivers/hwmon/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/hwmon/Makefile	2021-06-01 21:43:02.559664567 +0200
@@ -197,6 +197,7 @@ obj-$(CONFIG_SENSORS_W83L785TS)	+= w83l7
 obj-$(CONFIG_SENSORS_W83L786NG)	+= w83l786ng.o
 obj-$(CONFIG_SENSORS_WM831X)	+= wm831x-hwmon.o
 obj-$(CONFIG_SENSORS_WM8350)	+= wm8350-hwmon.o
+obj-$(CONFIG_SENSORS_XENON)	+= xenon-hwmon.o
 obj-$(CONFIG_SENSORS_XGENE)	+= xgene-hwmon.o
 
 obj-$(CONFIG_SENSORS_OCC)	+= occ/
diff -NurpP --minimal linux-5.12/drivers/hwmon/xenon-hwmon.c linux-5.12-xenon/drivers/hwmon/xenon-hwmon.c
--- linux-5.12/drivers/hwmon/xenon-hwmon.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/hwmon/xenon-hwmon.c	2021-06-01 21:43:02.559664567 +0200
@@ -0,0 +1,200 @@
+/*
+ *  Xenon HW Monitor via SMC driver.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+
+#define DRV_NAME	"xenon-hwmon"
+#define DRV_VERSION	"0.1"
+
+#if 0
+struct hwmon {
+	spinlock_t	lock;
+
+	struct device	*xenon_hwmon_dev;
+};
+#endif
+static unsigned int fan_speed[2];
+
+int xenon_smc_message_wait(void *msg);
+
+static unsigned long xenon_get_temp(unsigned nr)
+{
+	unsigned char msg[16] = { 0x07 };
+	static unsigned int temp[4] = { 0 };
+
+	/* FIXME: only every N jiffies */
+	xenon_smc_message_wait(msg);
+	temp[0] = (msg[1] | (msg[2] << 8)) * 1000 / 256;
+	temp[1] = (msg[3] | (msg[4] << 8)) * 1000 / 256;
+	temp[2] = (msg[5] | (msg[6] << 8)) * 1000 / 256;
+	temp[3] = (msg[7] | (msg[8] << 8)) * 1000 / 256;
+
+	return temp[nr & 3];
+}
+
+void xenon_smc_message(void *msg);
+
+static int xenon_set_cpu_fan_speed(unsigned val)
+{
+	unsigned char msg[16] = { 0x94, (val & 0x7F) | 0x80 };
+
+	xenon_smc_message(msg);
+	return 0;
+}
+
+static int xenon_set_gpu_fan_speed(unsigned val)
+{
+	unsigned char msg[16] = { 0x89, (val & 0x7F) | 0x80 };
+
+	xenon_smc_message(msg);
+	return 0;
+}
+
+
+static ssize_t show_fan_speed(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	// void *p = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%u\n", fan_speed[fan_nr]);
+}
+
+static ssize_t set_fan_speed(struct device *dev, struct device_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int fan_nr = to_sensor_dev_attr(attr)->index;
+	unsigned int val = simple_strtol(buf, NULL, 10);
+	// void *p = dev_get_drvdata(dev);
+
+	fan_speed[fan_nr] = val & 0xFF;
+
+	if (fan_nr == 0)
+		xenon_set_cpu_fan_speed(val);
+	if (fan_nr == 1)
+		xenon_set_gpu_fan_speed(val);
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(cpu_fan_speed, S_IRUGO | S_IWUSR,
+		show_fan_speed, set_fan_speed, 0);
+static SENSOR_DEVICE_ATTR(gpu_fan_speed, S_IRUGO | S_IWUSR,
+		show_fan_speed, set_fan_speed, 1);
+
+static ssize_t show_temp(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	int temp_nr = to_sensor_dev_attr(attr)->index;
+	// struct dev *p = dev_get_drvdata(pdev);
+	unsigned temp = xenon_get_temp(temp_nr);
+
+	return sprintf(buf, "%d\n", temp);
+}
+
+static SENSOR_DEVICE_ATTR(cpu_temp, S_IRUGO, show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(gpu_temp, S_IRUGO, show_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(edram_temp, S_IRUGO, show_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(motherboard_temp, S_IRUGO, show_temp, NULL, 3);
+
+static ssize_t show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "xenon\n");
+}
+
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, show_name, NULL, 0);
+
+static struct attribute *xenon_hwmon_attributes[] = {
+	&sensor_dev_attr_cpu_fan_speed.dev_attr.attr,
+	&sensor_dev_attr_gpu_fan_speed.dev_attr.attr,
+	&sensor_dev_attr_cpu_temp.dev_attr.attr,
+	&sensor_dev_attr_gpu_temp.dev_attr.attr,
+	&sensor_dev_attr_edram_temp.dev_attr.attr,
+	&sensor_dev_attr_motherboard_temp.dev_attr.attr,
+	&sensor_dev_attr_name.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group xenon_hwmon_group = {
+	.attrs = xenon_hwmon_attributes,
+};
+
+static int __init xenon_hwmon_probe(struct platform_device *pdev)
+{
+	struct device *dev;
+	int err;
+
+	err = sysfs_create_group(&pdev->dev.kobj, &xenon_hwmon_group);
+	if (err)
+		goto out;
+
+	dev = hwmon_device_register(&pdev->dev);
+	if (IS_ERR(dev)) {
+		err = PTR_ERR(dev);
+		goto out_sysfs_remove_group;
+	}
+
+	platform_set_drvdata(pdev, dev);
+	return 0;
+
+out_sysfs_remove_group:
+	sysfs_remove_group(&pdev->dev.kobj, &xenon_hwmon_group);
+out:
+	return err;
+}
+
+static int __exit xenon_hwmon_remove(struct platform_device *pdev)
+{
+	hwmon_device_unregister(&pdev->dev);
+	sysfs_remove_group(&pdev->dev.kobj, &xenon_hwmon_group);
+	return 0;
+}
+
+
+static struct platform_driver xenon_hwmon_driver = {
+	.driver		= {
+		.name	= DRV_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.remove		= __exit_p(xenon_hwmon_remove),
+};
+
+static int __init xenon_hwmon_init(void)
+{
+	int ret = platform_driver_probe(&xenon_hwmon_driver, xenon_hwmon_probe);
+
+	printk("xenon_hwmon_init() = %d\n", ret);
+	return ret;
+}
+
+static void __exit xenon_hwmon_exit(void)
+{
+	platform_driver_unregister(&xenon_hwmon_driver);
+}
+
+module_init(xenon_hwmon_init);
+module_exit(xenon_hwmon_exit);
+
+MODULE_AUTHOR("Herbert Poetzl <herbert@13thfloor.at>");
+MODULE_DESCRIPTION("Character Interface for Xenon (H)ana");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
diff -NurpP --minimal linux-5.12/drivers/input/joystick/xpad.c.new linux-5.12-xenon/drivers/input/joystick/xpad.c.new
--- linux-5.12/drivers/input/joystick/xpad.c.new	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/input/joystick/xpad.c.new	2021-06-01 21:43:02.559664567 +0200
@@ -0,0 +1,1078 @@
+/*
+ * Xbox gamepad driver with Xbox 360 wired/wireless support
+ *
+ * Last Modified:	2 March 2009
+ *			Mike Murphy <mamurph@cs.clemson.edu>
+ *
+ * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
+ *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
+ *                    Steven Toth <steve@toth.demon.co.uk>,
+ *                    Franz Lehner <franz@caos.at>,
+ *                    Ivan Hawkes <blackhawk@ivanhawkes.com>
+ *               2005 Dominic Cerquetti <binary1230@yahoo.com>
+ *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
+ *               2007 Jan Kratochvil <honza@jikos.cz>
+ *               2010 Christoph Fritz <chf.fritz@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *
+ * This driver is based on:
+ *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
+ *  - the iForce driver    drivers/char/joystick/iforce.c
+ *  - the skeleton-driver  drivers/usb/usb-skeleton.c
+ *  - Xbox 360 information http://www.free60.org/wiki/Gamepad
+ *
+ * Thanks to:
+ *  - ITO Takayuki for providing essential xpad information on his website
+ *  - Vojtech Pavlik     - iforce driver / input subsystem
+ *  - Greg Kroah-Hartman - usb-skeleton driver
+ *  - XBOX Linux project - extra USB id's
+ *
+ * TODO:
+ *  - fine tune axes (especially trigger axes)
+ *  - fix "analog" buttons (reported as digital now)
+ *  - get rumble working
+ *  - need USB IDs for other dance pads
+ *
+ * History:
+ *
+ * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
+ *
+ * 2002-07-02 - 0.0.2 : basic working version
+ *  - all axes and 9 of the 10 buttons work (german InterAct device)
+ *  - the black button does not work
+ *
+ * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
+ *  - indentation fixes
+ *  - usb + input init sequence fixes
+ *
+ * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
+ *  - verified the lack of HID and report descriptors
+ *  - verified that ALL buttons WORK
+ *  - fixed d-pad to axes mapping
+ *
+ * 2002-07-17 - 0.0.5 : simplified d-pad handling
+ *
+ * 2004-10-02 - 0.0.6 : DDR pad support
+ *  - borrowed from the XBOX linux kernel
+ *  - USB id's for commonly used dance pads are present
+ *  - dance pads will map D-PAD to buttons, not axes
+ *  - pass the module paramater 'dpad_to_buttons' to force
+ *    the D-PAD to map to buttons if your pad is not detected
+ *
+ * Later changes can be tracked in SCM.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+
+#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
+#define DRIVER_DESC "X-Box pad driver"
+
+#define XPAD_PKT_LEN 32
+
+/* xbox d-pads should map to buttons, as is required for DDR pads
+   but we map them to axes when possible to simplify things */
+#define MAP_DPAD_TO_BUTTONS		(1 << 0)
+#define MAP_TRIGGERS_TO_BUTTONS		(1 << 1)
+#define MAP_STICKS_TO_NULL		(1 << 2)
+#define DANCEPAD_MAP_CONFIG	(MAP_DPAD_TO_BUTTONS |			\
+				MAP_TRIGGERS_TO_BUTTONS | MAP_STICKS_TO_NULL)
+
+#define XTYPE_XBOX        0
+#define XTYPE_XBOX360     1
+#define XTYPE_XBOX360W    2
+#define XTYPE_UNKNOWN     3
+
+static int dpad_to_buttons;
+module_param(dpad_to_buttons, bool, S_IRUGO);
+MODULE_PARM_DESC(dpad_to_buttons, "Map D-PAD to buttons rather than axes for unknown pads");
+
+static int triggers_to_buttons;
+module_param(triggers_to_buttons, bool, S_IRUGO);
+MODULE_PARM_DESC(triggers_to_buttons, "Map triggers to buttons rather than axes for unknown pads");
+
+static int sticks_to_null;
+module_param(sticks_to_null, bool, S_IRUGO);
+MODULE_PARM_DESC(sticks_to_null, "Do not map sticks at all for unknown pads");
+
+static const struct xpad_device {
+	u16 idVendor;
+	u16 idProduct;
+	char *name;
+	u8 mapping;
+	u8 xtype;
+} xpad_device[] = {
+	{ 0x045e, 0x0202, "Microsoft X-Box pad v1 (US)", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0289, "Microsoft X-Box pad v2 (US)", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0285, "Microsoft X-Box pad (Japan)", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0287, "Microsoft Xbox Controller S", 0, XTYPE_XBOX },
+	{ 0x045e, 0x0719, "Xbox 360 Wireless Receiver", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360W },
+	{ 0x0c12, 0x8809, "RedOctane Xbox Dance Pad", DANCEPAD_MAP_CONFIG, XTYPE_XBOX },
+	{ 0x044f, 0x0f07, "Thrustmaster, Inc. Controller", 0, XTYPE_XBOX },
+	{ 0x046d, 0xc242, "Logitech Chillstream Controller", 0, XTYPE_XBOX360 },
+	{ 0x046d, 0xca84, "Logitech Xbox Cordless Controller", 0, XTYPE_XBOX },
+	{ 0x046d, 0xca88, "Logitech Compact Controller for Xbox", 0, XTYPE_XBOX },
+	{ 0x05fd, 0x1007, "Mad Catz Controller (unverified)", 0, XTYPE_XBOX },
+	{ 0x05fd, 0x107a, "InterAct 'PowerPad Pro' X-Box pad (Germany)", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4516, "Mad Catz Control Pad", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4522, "Mad Catz LumiCON", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4526, "Mad Catz Control Pad Pro", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4536, "Mad Catz MicroCON", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4540, "Mad Catz Beat Pad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0738, 0x4556, "Mad Catz Lynx Wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0738, 0x4716, "Mad Catz Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0738, 0x4738, "Mad Catz Wired Xbox 360 Controller (SFIV)", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0738, 0x6040, "Mad Catz Beat Pad Pro", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x0c12, 0x8802, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x880a, "Pelican Eclipse PL-2023", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x8810, "Zeroplus Xbox Controller", 0, XTYPE_XBOX },
+	{ 0x0c12, 0x9902, "HAMA VibraX - *FAULTY HARDWARE*", 0, XTYPE_XBOX },
+	{ 0x0e4c, 0x1097, "Radica Gamester Controller", 0, XTYPE_XBOX },
+	{ 0x0e4c, 0x2390, "Radica Games Jtech Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0003, "Logic3 Freebird wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0005, "Eclipse wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0006, "Edge wireless Controller", 0, XTYPE_XBOX },
+	{ 0x0e6f, 0x0006, "Pelican 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e6f, 0x0201, "Pelican PL-3601 'TSZ' Wired Xbox 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x0e8f, 0x0201, "SmartJoy Frag Xpad/PS2 adaptor", 0, XTYPE_XBOX },
+	{ 0x0f30, 0x0202, "Joytech Advanced Controller", 0, XTYPE_XBOX },
+	{ 0x0f30, 0x8888, "BigBen XBMiniPad Controller", 0, XTYPE_XBOX },
+	{ 0x102c, 0xff0c, "Joytech Wireless Advanced Controller", 0, XTYPE_XBOX },
+	{ 0x12ab, 0x8809, "Xbox DDR dancepad", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x1430, 0x4748, "RedOctane Guitar Hero X-plorer", 0, XTYPE_XBOX360 },
+	{ 0x1430, 0x8888, "TX6500+ Dance Pad (first generation)", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX },
+	{ 0x146b, 0x0601, "BigBen Interactive XBOX 360 Controller", 0, XTYPE_XBOX360 },
+	{ 0x045e, 0x028e, "Microsoft X-Box 360 pad", 0, XTYPE_XBOX360 },
+	{ 0x1bad, 0x0003, "Harmonix Rock Band Drumkit", MAP_DPAD_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0f0d, 0x0016, "Hori Real Arcade Pro.EX", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0x0f0d, 0x000d, "Hori Fighting Stick EX2", MAP_TRIGGERS_TO_BUTTONS, XTYPE_XBOX360 },
+	{ 0xffff, 0xffff, "Chinese-made Xbox Controller", 0, XTYPE_XBOX },
+	{ 0x0000, 0x0000, "Generic X-Box pad", 0, XTYPE_UNKNOWN }
+};
+
+/* buttons shared with xbox and xbox360 */
+static const signed short xpad_common_btn[] = {
+	BTN_A, BTN_B, BTN_X, BTN_Y,			/* "analog" buttons */
+	BTN_START, BTN_SELECT, BTN_THUMBL, BTN_THUMBR,	/* start/back/sticks */
+	-1						/* terminating entry */
+};
+
+/* original xbox controllers only */
+static const signed short xpad_btn[] = {
+	BTN_C, BTN_Z,		/* "analog" buttons */
+	-1			/* terminating entry */
+};
+
+/* used when dpad is mapped to buttons */
+static const signed short xpad_btn_pad[] = {
+	BTN_TRIGGER_HAPPY1, BTN_TRIGGER_HAPPY2,		/* d-pad left, right */
+	BTN_TRIGGER_HAPPY3, BTN_TRIGGER_HAPPY4,		/* d-pad up, down */
+	-1				/* terminating entry */
+};
+
+/* used when triggers are mapped to buttons */
+static const signed short xpad_btn_triggers[] = {
+	BTN_TL2, BTN_TR2,		/* triggers left/right */
+	-1
+};
+
+
+/* buttons for x360 controller */
+static const signed short xpad360_btn[] = {
+	BTN_TL, BTN_TR,		/* Button LB/RB */
+	BTN_MODE,		/* The big X button */
+	-1
+};
+
+/* sticks and triggers common to all devices */
+static const signed short xpad_abs[] = {
+	ABS_X, ABS_Y,		/* left stick */
+	ABS_RX, ABS_RY,		/* right stick */
+	-1			/* terminating entry */
+};
+
+/* used when dpad is mapped to axes */
+static const signed short xpad_abs_pad[] = {
+	ABS_HAT0X, ABS_HAT0Y,	/* d-pad axes */
+	-1			/* terminating entry */
+};
+
+/* used when triggers are mapped to axes */
+static const signed short xpad_abs_triggers[] = {
+	ABS_Z, ABS_RZ,		/* triggers left/right */
+	-1
+};
+
+/* Xbox 360 has a vendor-specific class, so we cannot match it with only
+ * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
+ * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
+ * wireless controllers have protocol 129. */
+#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
+	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_INT_INFO, \
+	.idVendor = (vend), \
+	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
+	.bInterfaceSubClass = 93, \
+	.bInterfaceProtocol = (pr)
+#define XPAD_XBOX360_VENDOR(vend) \
+	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,1) }, \
+	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend,129) }
+
+static struct usb_device_id xpad_table [] = {
+	{ USB_INTERFACE_INFO('X', 'B', 0) },	/* X-Box USB-IF not approved class */
+	XPAD_XBOX360_VENDOR(0x045e),		/* Microsoft X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x046d),		/* Logitech X-Box 360 style controllers */
+	XPAD_XBOX360_VENDOR(0x0738),		/* Mad Catz X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x0e6f),		/* 0x0e6f X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x1430),		/* RedOctane X-Box 360 controllers */
+	XPAD_XBOX360_VENDOR(0x146b),		/* BigBen Interactive Controllers */
+	XPAD_XBOX360_VENDOR(0x1bad),		/* Rock Band Drums */
+	XPAD_XBOX360_VENDOR(0x0f0d),            /* Hori Controllers */
+	{ }
+};
+
+MODULE_DEVICE_TABLE (usb, xpad_table);
+
+struct usb_xpad {
+	struct input_dev *dev;		/* input device interface */
+	struct usb_device *udev;	/* usb device */
+
+	int pad_present;
+
+	struct urb *irq_in;		/* urb for interrupt in report */
+	unsigned char *idata;		/* input data */
+	dma_addr_t idata_dma;
+
+	struct urb *bulk_out;
+	unsigned char *bdata;
+
+#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
+	struct urb *irq_out;		/* urb for interrupt out report */
+	unsigned char *odata;		/* output data */
+	dma_addr_t odata_dma;
+	struct mutex odata_mutex;
+#endif
+
+#if defined(CONFIG_JOYSTICK_XPAD_LEDS)
+	struct xpad_led *led;
+#endif
+
+	char phys[64];			/* physical device path */
+
+	int mapping;			/* map d-pad to buttons or to axes */
+	int xtype;			/* type of xbox device */
+};
+
+/*
+ *	xpad_process_packet
+ *
+ *	Completes a request by converting the data into events for the
+ *	input subsystem.
+ *
+ *	The used report descriptor was taken from ITO Takayukis website:
+ *	 http://euc.jp/periphs/xbox-controller.ja.html
+ */
+
+static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd, unsigned char *data)
+{
+	struct input_dev *dev = xpad->dev;
+
+	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+		/* left stick */
+		input_report_abs(dev, ABS_X,
+				 (__s16) le16_to_cpup((__le16 *)(data + 12)));
+		input_report_abs(dev, ABS_Y,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 14)));
+
+		/* right stick */
+		input_report_abs(dev, ABS_RX,
+				 (__s16) le16_to_cpup((__le16 *)(data + 16)));
+		input_report_abs(dev, ABS_RY,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 18)));
+	}
+
+	/* triggers left/right */
+	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+		input_report_key(dev, BTN_TL2, data[10]);
+		input_report_key(dev, BTN_TR2, data[11]);
+	} else {
+		input_report_abs(dev, ABS_Z, data[10]);
+		input_report_abs(dev, ABS_RZ, data[11]);
+	}
+
+	/* digital pad */
+	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+		/* dpad as buttons (left, right, up, down) */
+		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
+		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
+		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
+		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
+	} else {
+		input_report_abs(dev, ABS_HAT0X,
+				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
+		input_report_abs(dev, ABS_HAT0Y,
+				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
+	}
+
+	/* start/back buttons and stick press left/right */
+	input_report_key(dev, BTN_START,  data[2] & 0x10);
+	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
+	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
+	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
+
+	/* "analog" buttons A, B, X, Y */
+	input_report_key(dev, BTN_A, data[4]);
+	input_report_key(dev, BTN_B, data[5]);
+	input_report_key(dev, BTN_X, data[6]);
+	input_report_key(dev, BTN_Y, data[7]);
+
+	/* "analog" buttons black, white */
+	input_report_key(dev, BTN_C, data[8]);
+	input_report_key(dev, BTN_Z, data[9]);
+
+	input_sync(dev);
+}
+
+
+/*
+ *	xpad360_process_packet
+ *
+ *	Completes a request by converting the data into events for the
+ *	input subsystem. It is version for xbox 360 controller
+ *
+ *	The used report descriptor was taken from:
+ *		http://www.free60.org/wiki/Gamepad
+ */
+
+static void xpad360_process_packet(struct usb_xpad *xpad, u16 cmd,
+		unsigned char *data)
+{
+	struct input_dev *dev = xpad->dev;
+	int trigger;
+
+	/* digital pad */
+	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+		/* dpad as buttons (left, right, up, down) */
+		input_report_key(dev, BTN_TRIGGER_HAPPY1, data[2] & 0x04);
+		input_report_key(dev, BTN_TRIGGER_HAPPY2, data[2] & 0x08);
+		input_report_key(dev, BTN_TRIGGER_HAPPY3, data[2] & 0x01);
+		input_report_key(dev, BTN_TRIGGER_HAPPY4, data[2] & 0x02);
+	} else {
+		input_report_abs(dev, ABS_HAT0X,
+				 !!(data[2] & 0x08) - !!(data[2] & 0x04));
+		input_report_abs(dev, ABS_HAT0Y,
+				 !!(data[2] & 0x02) - !!(data[2] & 0x01));
+	}
+
+	/* start/back buttons */
+	input_report_key(dev, BTN_START,  data[2] & 0x10);
+	input_report_key(dev, BTN_SELECT, data[2] & 0x20);
+
+	/* stick press left/right */
+	input_report_key(dev, BTN_THUMBL, data[2] & 0x40);
+	input_report_key(dev, BTN_THUMBR, data[2] & 0x80);
+
+	/* buttons A,B,X,Y,TL,TR and MODE */
+	input_report_key(dev, BTN_A,	data[3] & 0x10);
+	input_report_key(dev, BTN_B,	data[3] & 0x20);
+	input_report_key(dev, BTN_X,	data[3] & 0x40);
+	input_report_key(dev, BTN_Y,	data[3] & 0x80);
+	input_report_key(dev, BTN_TL,	data[3] & 0x01);
+	input_report_key(dev, BTN_TR,	data[3] & 0x02);
+	input_report_key(dev, BTN_MODE,	data[3] & 0x04);
+
+	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+		/* left stick */
+		input_report_abs(dev, ABS_X,
+				 (__s16) le16_to_cpup((__le16 *)(data + 6)));
+		input_report_abs(dev, ABS_Y,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 8)));
+
+		/* right stick */
+		input_report_abs(dev, ABS_RX,
+				 (__s16) le16_to_cpup((__le16 *)(data + 10)));
+		input_report_abs(dev, ABS_RY,
+				 ~(__s16) le16_to_cpup((__le16 *)(data + 12)));
+	}
+
+	/* triggers left/right */
+	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+		input_report_key(dev, BTN_TL2, data[4]);
+		input_report_key(dev, BTN_TR2, data[5]);
+	} else {
+		input_report_abs(dev, ABS_Z, data[4]);
+		input_report_abs(dev, ABS_RZ, data[5]);
+	}
+
+	input_sync(dev);
+}
+
+/*
+ * xpad360w_process_packet
+ *
+ * Completes a request by converting the data into events for the
+ * input subsystem. It is version for xbox 360 wireless controller.
+ *
+ * Byte.Bit
+ * 00.1 - Status change: The controller or headset has connected/disconnected
+ *                       Bits 01.7 and 01.6 are valid
+ * 01.f - Some kind of unique identifier message (see above)
+ * 01.7 - Controller present
+ * 01.6 - Headset present
+ * 01.1 - Pad state (Bytes 4+) valid
+ *
+ */
+
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd,
+		unsigned char *data)
+{
+	int padnum = 0;
+
+	/* Presence change */
+	if (data[0] & 0x08) {
+		padnum = xpad->controller_number;
+		if (data[1] & 0x80) {
+			/* ignore duplicates */
+			if (!xpad->controller_present) {
+				xpad->controller_present = 1;
+				/*schedule_work(&xpad->work);*/
+				/* Wait for id packet before setting
+				 * controller type and LEDs */
+			}
+		} else {
+			xpad->controller_present = 0;
+			xpad->controller_unique_id[0] = '\0';
+			xpad->controller_type = XCONTROLLER_TYPE_NONE;
+			/* We do NOT flush the shared workqueue here, because
+			 * this function is called from an interrupt handler.
+			 * If the controller has disconnected from the receiver,
+			 * the worst that will happen from the work task running
+			 * is that a packet will be transmitted from the
+			 * receiver to a non-listening controller
+			 */
+		}
+	}
+
+	/* Process packets according to type */
+	if (data[1] == 0x0f) {
+		if (!xpad->controller_unique_id[0]) {
+			if (xpad->id_packet) {
+				memcpy(xpad->id_packet, data, 29);
+				schedule_work(&xpad->work);
+			}
+		}
+	} else if (data[1] & 0x1) {
+		xpad360_process_packet(xpad, cmd, &data[4]);
+	}
+}
+
+
+static void xpad_irq_in(struct urb *urb)
+{
+	struct usb_xpad *xpad = urb->context;
+	int retval, status;
+
+	status = urb->status;
+
+	switch (status) {
+	case 0:
+		/* success */
+		break;
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d",
+			__func__, status);
+		return;
+	default:
+		dbg("%s - nonzero urb status received: %d",
+			__func__, status);
+		goto exit;
+	}
+
+	switch (xpad->xtype) {
+	case XTYPE_XBOX360:
+		xpad360_process_packet(xpad, 0, xpad->idata);
+		break;
+	case XTYPE_XBOX360W:
+		xpad360w_process_packet(xpad, 0, xpad->idata);
+		break;
+	default:
+		xpad_process_packet(xpad, 0, xpad->idata);
+	}
+
+exit:
+	retval = usb_submit_urb(urb, GFP_ATOMIC);
+	if (retval)
+		err("%s - usb_submit_urb failed with result %d",
+		     __func__, retval);
+}
+
+/* end input section */
+
+/*****************************************************************************/
+/* IRQ output section: present in object code only if the force feedback or
+ * LED interface is enabled.
+ */
+
+#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
+static void xpad_irq_out(struct urb *urb)
+{
+	int retval, status;
+
+	status = urb->status;
+
+	switch (status) {
+	case 0:
+		/* success */
+		return;
+
+	case -ECONNRESET:
+	case -ENOENT:
+	case -ESHUTDOWN:
+		/* this urb is terminated, clean up */
+		dbg("%s - urb shutting down with status: %d", __func__, status);
+		return;
+
+	default:
+		dbg("%s - nonzero urb status received: %d", __func__, status);
+		goto exit;
+	}
+
+exit:
+	retval = usb_submit_urb(urb, GFP_ATOMIC);
+	if (retval)
+		err("%s - usb_submit_urb failed with result %d",
+		    __func__, retval);
+}
+
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad)
+{
+	struct usb_endpoint_descriptor *ep_irq_out;
+	int error = -ENOMEM;
+
+	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX)
+		return 0;
+
+	xpad->odata = usb_alloc_coherent(xpad->udev, XPAD_PKT_LEN,
+					 GFP_KERNEL, &xpad->odata_dma);
+	if (!xpad->odata)
+		goto fail1;
+
+	mutex_init(&xpad->odata_mutex);
+
+	xpad->irq_out = usb_alloc_urb(0, GFP_KERNEL);
+	if (!xpad->irq_out)
+		goto fail2;
+
+	ep_irq_out = &intf->cur_altsetting->endpoint[1].desc;
+	usb_fill_int_urb(xpad->irq_out, xpad->udev,
+			 usb_sndintpipe(xpad->udev,
+				ep_irq_out->bEndpointAddress),
+			 xpad->odata, XPAD_PKT_LEN,
+			 xpad_irq_out, xpad, ep_irq_out->bInterval);
+	xpad->irq_out->transfer_dma = xpad->odata_dma;
+	xpad->irq_out->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	return 0;
+
+ fail2:	usb_free_coherent(xpad->udev, XPAD_PKT_LEN, xpad->odata, xpad->odata_dma);
+ fail1:	return error;
+}
+
+static void xpad_stop_output(struct usb_xpad *xpad)
+{
+	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX)
+		usb_kill_urb(xpad->irq_out);
+}
+
+static void xpad_deinit_output(struct usb_xpad *xpad)
+{
+	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX) {
+		usb_free_urb(xpad->irq_out);
+		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
+				xpad->odata, xpad->odata_dma);
+	}
+}
+#else
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad) { return 0; }
+static void xpad_deinit_output(struct usb_xpad *xpad) {}
+static void xpad_stop_output(struct usb_xpad *xpad) {}
+#endif
+
+#ifdef CONFIG_JOYSTICK_XPAD_FF
+static int xpad_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+	struct usb_xpad *xpad = input_get_drvdata(dev);
+
+	if (effect->type == FF_RUMBLE) {
+		__u16 strong = effect->u.rumble.strong_magnitude;
+		__u16 weak = effect->u.rumble.weak_magnitude;
+
+		switch (xpad->xtype) {
+
+		case XTYPE_XBOX:
+			xpad->odata[0] = 0x00;
+			xpad->odata[1] = 0x06;
+			xpad->odata[2] = 0x00;
+			xpad->odata[3] = strong / 256;	/* left actuator */
+			xpad->odata[4] = 0x00;
+			xpad->odata[5] = weak / 256;	/* right actuator */
+			xpad->irq_out->transfer_buffer_length = 6;
+
+			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+
+		case XTYPE_XBOX360:
+			xpad->odata[0] = 0x00;
+			xpad->odata[1] = 0x08;
+			xpad->odata[2] = 0x00;
+			xpad->odata[3] = strong / 256;  /* left actuator? */
+			xpad->odata[4] = weak / 256;	/* right actuator? */
+			xpad->odata[5] = 0x00;
+			xpad->odata[6] = 0x00;
+			xpad->odata[7] = 0x00;
+			xpad->irq_out->transfer_buffer_length = 8;
+
+			return usb_submit_urb(xpad->irq_out, GFP_ATOMIC);
+
+		default:
+			dbg("%s - rumble command sent to unsupported xpad type: %d",
+				__func__, xpad->xtype);
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+static int xpad_init_ff(struct usb_xpad *xpad)
+{
+	if (xpad->xtype != XTYPE_XBOX360 && xpad->xtype != XTYPE_XBOX)
+		return 0;
+
+	input_set_capability(xpad->dev, EV_FF, FF_RUMBLE);
+
+	return input_ff_create_memless(xpad->dev, NULL, xpad_play_effect);
+}
+
+#else
+/* dummy implementation for xpad_probe */
+static int xpad_init_ff(struct usb_xpad *xpad) { return 0; }
+#endif
+
+
+/* end force feedback section */
+
+/*****************************************************************************/
+
+/* LED handling section: provides support for the ring of LEDs on the 360
+ * controllers. */
+
+#ifdef CONFIG_JOYSTICK_XPAD_LEDS
+
+
+/* XBox 360 wireless controller follows protocol from xboxdrv userspace
+ * driver:
+ *    http://pingus.seul.org/~grumbel/xboxdrv/
+ */
+static void xpad_send_led_command(struct usb_xpad *xpad, int command)
+{
+	if (command >= 0 && command < 14) {
+		mutex_lock(&xpad->odata_mutex);
+		if (xpad->xtype == XTYPE_XBOX360W) {
+			xpad->odata[0] = 0x00;
+			xpad->odata[1] = 0x00;
+			xpad->odata[2] = 0x08;
+			xpad->odata[3] = 0x40 + (command % 0x0e);
+			xpad->odata[4] = 0x00;
+			xpad->odata[5] = 0x00;
+			xpad->odata[6] = 0x00;
+			xpad->odata[7] = 0x00;
+			xpad->odata[8] = 0x00;
+			xpad->odata[9] = 0x00;
+			xpad->odata[10] = 0x00;
+			xpad->odata[11] = 0x00;
+			xpad->irq_out->transfer_buffer_length = 12;
+		} else {
+			xpad->odata[0] = 0x01;
+			xpad->odata[1] = 0x03;
+			xpad->odata[2] = command;
+			xpad->irq_out->transfer_buffer_length = 3;
+		}
+		usb_submit_urb(xpad->irq_out, GFP_KERNEL);
+		mutex_unlock(&xpad->odata_mutex);
+	}
+}
+
+static void xpad_led_set(struct led_classdev *led_cdev,
+			 enum led_brightness value)
+{
+	struct xpad_led *xpad_led = container_of(led_cdev,
+						 struct xpad_led, led_cdev);
+
+	xpad_send_led_command(xpad_led->xpad, value);
+}
+
+
+static int xpad_led_probe(struct usb_xpad *xpad)
+{
+	static atomic_t led_seq	= ATOMIC_INIT(0);
+	long led_no;
+	struct xpad_led *led;
+	struct led_classdev *led_cdev;
+	int error;
+
+	if ((xpad->xtype != XTYPE_XBOX360) && (xpad->xtype != XTYPE_XBOX360W))
+		return 0;
+
+	xpad->led = led = kzalloc(sizeof(struct xpad_led), GFP_KERNEL);
+	if (!led)
+		return -ENOMEM;
+
+	led_no = (long)atomic_inc_return(&led_seq) - 1;
+
+	snprintf(led->name, sizeof(led->name), "xpad%ld", led_no);
+	led->xpad = xpad;
+
+	led_cdev = &led->led_cdev;
+	led_cdev->name = led->name;
+	led_cdev->brightness_set = xpad_led_set;
+
+	error = led_classdev_register(&xpad->udev->dev, led_cdev);
+	if (error) {
+		kfree(led);
+		xpad->led = NULL;
+		return error;
+	}
+
+	/*
+	 * Light up the segment corresponding to controller number
+	 */
+	xpad_send_led_command(xpad, (led_no % 4) + 2);
+
+	return 0;
+}
+
+static void xpad_led_disconnect(struct usb_xpad *xpad)
+{
+	struct xpad_led *xpad_led = xpad->led;
+
+	if (xpad_led) {
+		led_classdev_unregister(&xpad_led->led_cdev);
+		kfree(xpad_led->name);
+	}
+}
+#else
+/* dummies for xpad_probe and xpad_disconnect */
+static int xpad_led_probe(struct usb_xpad *xpad) { return 0; }
+static void xpad_led_disconnect(struct usb_xpad *xpad) { }
+#endif
+
+/* end LED section */
+
+/*****************************************************************************/
+
+/* Module and device functions */
+
+static int xpad_open(struct input_dev *dev)
+{
+	struct usb_xpad *xpad = input_get_drvdata(dev);
+
+	/* URB was submitted in probe */
+	if (xpad->xtype == XTYPE_XBOX360W)
+		return 0;
+
+	xpad->irq_in->dev = xpad->udev;
+	if (usb_submit_urb(xpad->irq_in, GFP_KERNEL))
+		return -EIO;
+
+	return 0;
+}
+
+static void xpad_close(struct input_dev *dev)
+{
+	struct usb_xpad *xpad = input_get_drvdata(dev);
+
+	if (xpad->xtype != XTYPE_XBOX360W)
+		usb_kill_urb(xpad->irq_in);
+	xpad_stop_output(xpad);
+}
+
+static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs)
+{
+	set_bit(abs, input_dev->absbit);
+
+	switch (abs) {
+	case ABS_X:
+	case ABS_Y:
+	case ABS_RX:
+	case ABS_RY:	/* the two sticks */
+		input_set_abs_params(input_dev, abs, -32768, 32767, 16, 128);
+		break;
+	case ABS_Z:
+	case ABS_RZ:	/* the triggers (if mapped to axes) */
+		input_set_abs_params(input_dev, abs, 0, 255, 0, 0);
+		break;
+	case ABS_HAT0X:
+	case ABS_HAT0Y:	/* the d-pad (only if dpad is mapped to axes */
+		input_set_abs_params(input_dev, abs, -1, 1, 0, 0);
+		break;
+	}
+}
+
+static int xpad_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	struct usb_device *udev = interface_to_usbdev(intf);
+	struct usb_xpad *xpad;
+	struct input_dev *input_dev;
+	struct usb_endpoint_descriptor *ep_irq_in;
+	int controller_type;
+	int i;
+	int error = -ENOMEM;
+
+	for (i = 0; xpad_device[i].idVendor; i++) {
+		if ((le16_to_cpu(udev->descriptor.idVendor) ==
+						xpad_device[i].idVendor) &&
+				(le16_to_cpu(udev->descriptor.idProduct) ==
+						xpad_device[i].idProduct))
+			break;
+	}
+
+	xpad = kzalloc(sizeof(struct usb_xpad), GFP_KERNEL);
+	input_dev = input_allocate_device();
+	if (!xpad || !input_dev)
+		goto fail1;
+
+	xpad->idata = usb_alloc_coherent(udev, XPAD_PKT_LEN,
+					 GFP_KERNEL, &xpad->idata_dma);
+	if (!xpad->idata)
+		goto fail1;
+
+	xpad->irq_in = usb_alloc_urb(0, GFP_KERNEL);
+	if (!xpad->irq_in)
+		goto fail2;
+
+	xpad->udev = udev;
+	xpad->mapping = xpad_device[i].mapping;
+	xpad->xtype = xpad_device[i].xtype;
+
+	if (xpad->xtype == XTYPE_UNKNOWN) {
+		if (intf->cur_altsetting->desc.bInterfaceClass == USB_CLASS_VENDOR_SPEC) {
+			if (intf->cur_altsetting->desc.bInterfaceProtocol == 129)
+				xpad->xtype = XTYPE_XBOX360W;
+			else
+				xpad->xtype = XTYPE_XBOX360;
+		} else
+			xpad->xtype = XTYPE_XBOX;
+
+		if (dpad_to_buttons)
+			xpad->mapping |= MAP_DPAD_TO_BUTTONS;
+		if (triggers_to_buttons)
+			xpad->mapping |= MAP_TRIGGERS_TO_BUTTONS;
+		if (sticks_to_null)
+			xpad->mapping |= MAP_STICKS_TO_NULL;
+	}
+
+	xpad->dev = input_dev;
+	usb_make_path(udev, xpad->phys, sizeof(xpad->phys));
+	strlcat(xpad->phys, "/input0", sizeof(xpad->phys));
+
+	input_dev->name = xpad_device[i].name;
+	input_dev->phys = xpad->phys;
+	usb_to_input_id(udev, &input_dev->id);
+	input_dev->dev.parent = &intf->dev;
+
+	input_set_drvdata(input_dev, xpad);
+
+	input_dev->open = xpad_open;
+	input_dev->close = xpad_close;
+
+	input_dev->evbit[0] = BIT_MASK(EV_KEY);
+
+	if (!(xpad->mapping & MAP_STICKS_TO_NULL)) {
+		input_dev->evbit[0] |= BIT_MASK(EV_ABS);
+		/* set up axes */
+		for (i = 0; xpad_abs[i] >= 0; i++)
+			xpad_set_up_abs(input_dev, xpad_abs[i]);
+	}
+
+	/* set up standard buttons */
+	for (i = 0; xpad_common_btn[i] >= 0; i++)
+		__set_bit(xpad_common_btn[i], input_dev->keybit);
+
+	/* set up model-specific ones */
+	if (xpad->xtype == XTYPE_XBOX360 || xpad->xtype == XTYPE_XBOX360W) {
+		for (i = 0; xpad360_btn[i] >= 0; i++)
+			__set_bit(xpad360_btn[i], input_dev->keybit);
+	} else {
+		for (i = 0; xpad_btn[i] >= 0; i++)
+			__set_bit(xpad_btn[i], input_dev->keybit);
+	}
+
+	if (xpad->mapping & MAP_DPAD_TO_BUTTONS) {
+		for (i = 0; xpad_btn_pad[i] >= 0; i++)
+			__set_bit(xpad_btn_pad[i], input_dev->keybit);
+	} else {
+		for (i = 0; xpad_abs_pad[i] >= 0; i++)
+		    xpad_set_up_abs(input_dev, xpad_abs_pad[i]);
+	}
+
+	if (xpad->mapping & MAP_TRIGGERS_TO_BUTTONS) {
+		for (i = 0; xpad_btn_triggers[i] >= 0; i++)
+			__set_bit(xpad_btn_triggers[i], input_dev->keybit);
+	} else {
+		for (i = 0; xpad_abs_triggers[i] >= 0; i++)
+			xpad_set_up_abs(input_dev, xpad_abs_triggers[i]);
+	}
+
+	error = xpad_init_output(intf, xpad);
+	if (error)
+		goto fail2;
+
+	error = xpad_init_ff(xpad);
+	if (error)
+		goto fail3;
+
+	error = xpad_led_probe(xpad);
+	if (error)
+		goto fail3;
+
+	ep_irq_in = &intf->cur_altsetting->endpoint[0].desc;
+	usb_fill_int_urb(xpad->irq_in, udev,
+			 usb_rcvintpipe(udev, ep_irq_in->bEndpointAddress),
+			 xpad->idata, XPAD_PKT_LEN, xpad_irq_in,
+			 xpad, ep_irq_in->bInterval);
+	xpad->irq_in->transfer_dma = xpad->idata_dma;
+	xpad->irq_in->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+
+	error = input_register_device(xpad->dev);
+	if (error)
+		goto fail4;
+
+	usb_set_intfdata(intf, xpad);
+
+	xpad->controller_type = controller_type;
+	if (controller_type != XCONTROLLER_TYPE_NONE)
+		xpad_init_controller(xpad);
+
+	/*
+	 * Submit the int URB immediatly rather than waiting for open
+	 * because we get status messages from the device whether
+	 * or not any controllers are attached.  In fact, it's
+	 * exactly the message that a controller has arrived that
+	 * we're waiting for.
+	 */
+	if (xpad->xtype == XTYPE_XBOX360W) {
+		xpad->controller_present = 0;
+		xpad->controller_number =
+			(intf->cur_altsetting->desc.bInterfaceNumber / 2) + 1;
+		xpad->irq_in->dev = xpad->udev;
+		error = usb_submit_urb(xpad->irq_in, GFP_KERNEL);
+		if (error)
+			goto fail5;
+		xpad->id_packet = kzalloc(XPAD_PKT_LEN *
+					sizeof(unsigned char), GFP_KERNEL);
+		if (!xpad->id_packet)
+			goto fail5;
+	} else {
+		xpad->controller_present = 1;
+		xpad->controller_number = 0;
+	}
+
+	/* Set up device attributes */
+	xpad->sysfs_ok = 1;
+	xpad->controller_unique_id[0] = '\0';
+	error = sysfs_create_group(&input_dev->dev.kobj,
+						&xpad_default_attr_group);
+	if (error) {
+		/* Driver will work without the sysfs interface, but parameters
+		 * will not be adjustable, so this failure is a warning. */
+		printk(KERN_WARNING
+			"xpad: sysfs_create_group failed with error %d\n",
+			error);
+		xpad->sysfs_ok = 0;
+	}
+
+	INIT_WORK(&xpad->work, &xpad_work_controller);
+
+	return 0;
+
+ fail5: usb_set_intfdata(intf, NULL);
+	input_unregister_device(xpad->dev);
+	xpad_led_disconnect(xpad);
+ fail4:	usb_free_urb(xpad->irq_in);
+ fail3:	xpad_deinit_output(xpad);
+ fail2:	usb_free_coherent(udev, XPAD_PKT_LEN, xpad->idata, xpad->idata_dma);
+ fail1:	input_free_device(input_dev);
+	kfree(xpad);
+	return error;
+
+}
+
+static void xpad_disconnect(struct usb_interface *intf)
+{
+	struct usb_xpad *xpad = usb_get_intfdata (intf);
+
+	usb_set_intfdata(intf, NULL);
+	if (xpad) {
+		xpad_led_disconnect(xpad);
+		input_unregister_device(xpad->dev);
+		xpad_deinit_output(xpad);
+		if (xpad->xtype == XTYPE_XBOX360W) {
+			usb_kill_urb(xpad->bulk_out);
+			usb_free_urb(xpad->bulk_out);
+			usb_kill_urb(xpad->irq_in);
+		}
+		usb_free_urb(xpad->irq_in);
+		usb_free_coherent(xpad->udev, XPAD_PKT_LEN,
+				xpad->idata, xpad->idata_dma);
+		kfree(xpad);
+	}
+}
+
+static struct usb_driver xpad_driver = {
+	.name		= "xpad",
+	.probe		= xpad_probe,
+	.disconnect	= xpad_disconnect,
+	.id_table	= xpad_table,
+};
+
+static int __init usb_xpad_init(void)
+{
+	int result = usb_register(&xpad_driver);
+	if (result == 0)
+		printk(KERN_INFO KBUILD_MODNAME ": " DRIVER_DESC "\n");
+	return result;
+}
+
+static void __exit usb_xpad_exit(void)
+{
+	usb_deregister(&xpad_driver);
+}
+
+
+module_init(usb_xpad_init);
+module_exit(usb_xpad_exit);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff -NurpP --minimal linux-5.12/drivers/input/joystick/xpad.h linux-5.12-xenon/drivers/input/joystick/xpad.h
--- linux-5.12/drivers/input/joystick/xpad.h	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/input/joystick/xpad.h	2021-06-01 21:43:02.559664567 +0200
@@ -0,0 +1,399 @@
+/*
+ * Xbox gamepad driver with Xbox 360 wired/wireless support
+ *
+ * Last Modified:	2 March 2009
+ *			Mike Murphy <mamurph@cs.clemson.edu>
+ *
+ * Copyright (c) 2002 Marko Friedemann <mfr@bmx-chemnitz.de>
+ *               2004 Oliver Schwartz <Oliver.Schwartz@gmx.de>,
+ *                    Steven Toth <steve@toth.demon.co.uk>,
+ *                    Franz Lehner <franz@caos.at>,
+ *                    Ivan Hawkes <blackhawk@ivanhawkes.com>
+ *               2005 Dominic Cerquetti <binary1230@yahoo.com>
+ *               2006 Adam Buchbinder <adam.buchbinder@gmail.com>
+ *               2007 Jan Kratochvil <honza@jikos.cz>
+ *               2009 Clemson University
+ *		      (contact: Mike Murphy <mamurph@cs.clemson.edu>)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ *
+ * This driver is based on:
+ *  - information from     http://euc.jp/periphs/xbox-controller.ja.html
+ *  - the iForce driver    drivers/char/joystick/iforce.c
+ *  - the skeleton-driver  drivers/usb/usb-skeleton.c
+ *  - Xbox 360 information http://www.free60.org/wiki/Gamepad
+ *  - xboxdrv docs         http://pingus.seul.org/~grumbel/xboxdrv/
+ *
+ * Thanks to:
+ *  - ITO Takayuki for providing essential xpad information on his website
+ *  - Vojtech Pavlik     - iforce driver / input subsystem
+ *  - Greg Kroah-Hartman - usb-skeleton driver
+ *  - XBOX Linux project - extra USB id's
+ *
+ * TODO:
+ *  - fix "analog" buttons (reported as digital now)
+ *  - need USB IDs for other dance pads
+ *
+ * Driver history is located at the bottom of this file.
+ */
+
+#ifndef _XPAD_H
+#define _XPAD_H
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/module.h>
+#include <linux/usb/input.h>
+#include <linux/workqueue.h>
+
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+#include <linux/string.h>
+
+#ifdef CONFIG_JOYSTICK_XPAD_LEDS
+#include <linux/leds.h>
+
+struct xpad_led {
+	char name[16];
+	struct led_classdev led_cdev;
+	struct usb_xpad *xpad;
+};
+#endif
+
+
+#define DRIVER_AUTHOR "Marko Friedemann <mfr@bmx-chemnitz.de>"
+#define DRIVER_DESC "Xbox/360 pad driver"
+
+#define XPAD_PKT_LEN 32
+
+
+/* xbox d-pads should map to buttons, as is required for DDR pads
+   but we map them to axes when possible to simplify things */
+#define MAP_DPAD_TO_BUTTONS    0
+#define MAP_DPAD_TO_AXES       1
+#define MAP_DPAD_UNKNOWN       2
+
+/* Type of controller *interface* (original, wired 360, wireless 360) */
+#define XTYPE_XBOX        0
+#define XTYPE_XBOX360     1
+#define XTYPE_XBOX360W    2
+#define XTYPE_UNKNOWN     3
+
+/* Type of controller (e.g. pad, guitar, other input device) */
+#define XCONTROLLER_TYPE_NONE		0
+#define XCONTROLLER_TYPE_PAD		1
+#define XCONTROLLER_TYPE_GUITAR		2
+#define XCONTROLLER_TYPE_DANCE_PAD	3
+#define XCONTROLLER_TYPE_OTHER		255
+
+
+/* The Xbox 360 controllers have sensitive sticks that often do not center
+ * exactly. A dead zone causes stick events below a certain threshhold to be
+ * reported as zero.
+ *
+ * The default dead zone size is 8192, which was obtained by testing a
+ * wireless 360 controller with jstest(1) and consulting gaming forums for
+ * a recommended dead zone for this controller. The consensus opinion was
+ * 0.25 (on a scale from 0 to 1), which corresponds to 8192 (out of 32767).
+ */
+#define XDEAD_ZONE_DEFAULT   8192
+
+/* Default limit for the sticks is the maximum axis value (32767), which will
+ * cause the sticks to have a radial axis as designed in the hardware. To
+ * enable square axis support, set the stick limits to 23170 or lower at run
+ * time via the sysfs interface. */
+#define XSTICK_LIMIT_DEFAULT 32767
+
+/* Rumble normally enabled */
+#define XRUMBLE_DEFAULT		1
+
+/* Normally, trigger axes report in the range 0 to 32767 (positive axis only) */
+#define XFULL_TRIGGER_AXIS_DEFAULT	0
+
+
+/* Xbox 360 has a vendor-specific class, so we cannot match it with only
+ * USB_INTERFACE_INFO (also specifically refused by USB subsystem), so we
+ * match against vendor id as well. Wired Xbox 360 devices have protocol 1,
+ * wireless controllers have protocol 129. */
+#define XPAD_XBOX360_VENDOR_PROTOCOL(vend,pr) \
+	.match_flags = USB_DEVICE_ID_MATCH_VENDOR | \
+			USB_DEVICE_ID_MATCH_INT_INFO, \
+	.idVendor = (vend), \
+	.bInterfaceClass = USB_CLASS_VENDOR_SPEC, \
+	.bInterfaceSubClass = 93, \
+	.bInterfaceProtocol = (pr)
+#define XPAD_XBOX360_VENDOR(vend) \
+	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend, 1) }, \
+	{ XPAD_XBOX360_VENDOR_PROTOCOL(vend, 129) }
+
+
+
+/* Some of the fields in the following structure are for later use with
+ * userspace applications to recognize individual controllers. The dead zones
+ * and axis limits can be changed "on the fly" and are effective immediately.
+ *
+ * The fields labeled "ro" and "rw" are intended to be read-only and
+ * read-write, respectively, when exposed in sysfs. Most of the read-only
+ * fields are to support *wireless* 360 controllers. The controller_number
+ * is used to set the LED, while controller_present tracks whether the
+ * controller is connected to the wireless receiver. Controller type applies
+ * to all models (wired and wireless), and tracks whether the device is a pad,
+ * guitar, etc. for later userspace use. See the comment above regarding
+ * type and unique ID detection on wireless 360 receivers.
+ */
+struct usb_xpad {
+	struct input_dev *dev;		/* input device interface */
+	struct usb_device *udev;	/* usb device */
+
+	struct urb *irq_in;		/* urb for interrupt in report */
+	unsigned char *idata;		/* input data */
+	dma_addr_t idata_dma;
+
+#if defined(CONFIG_JOYSTICK_XPAD_FF) || defined(CONFIG_JOYSTICK_XPAD_LEDS)
+	struct urb *irq_out;		/* urb for interrupt out report */
+	unsigned char *odata;		/* output data */
+	dma_addr_t odata_dma;
+	struct mutex odata_mutex;
+#endif
+
+#ifdef CONFIG_JOYSTICK_XPAD_LEDS
+	struct xpad_led *led;
+#endif
+
+	char phys[64];			/* physical device path */
+
+	int dpad_mapping;		/* map d-pad to buttons or to axes */
+	int xtype;			/* type of xbox device */
+
+	/* Work structure for moving the call to xpad_send_led_command
+	 * outside the interrupt handler for packet processing */
+	struct work_struct work;
+
+	/* id packet for wireless 360 controller */
+	unsigned char *id_packet;
+
+	int controller_number;		/* controller # (1-4) for 360w. ro */
+	int controller_present;         /* 360w controller presence. ro */
+	int controller_type;            /* controller type. ro */
+	char controller_unique_id[17];  /* unique ID of controller (360w). ro */
+	unsigned int left_dead_zone;    /* dead zone for left stick. rw */
+	unsigned int right_dead_zone;   /* dead zone for right stick. rw */
+	unsigned int left_stick_limit;  /* axis limit for left stick. rw */
+	unsigned int right_stick_limit; /* axis limit for right stick. rw */
+	int rumble_enable;              /* enable/disable rumble. rw */
+	int left_trigger_full_axis;     /* full axis - left trigger. rw */
+	int right_trigger_full_axis;    /* full axis - right trigger. rw */
+
+	int sysfs_ok;                   /* sysfs interface OK */
+};
+#define to_xpad(d) input_get_drvdata(to_input_dev(d))
+
+
+/* Function prototypes for non-sysfs interface functions */
+static void set_dead_zone(unsigned int new_size, unsigned int *dz,
+	unsigned int stick_limit);
+static void set_stick_limit(unsigned int new_size, unsigned int *sl,
+	unsigned int dead_zone);
+static void xpad_init_controller(struct usb_xpad *xpad);
+static void xpad_work_controller(struct work_struct *w);
+static void xpad_process_sticks(struct usb_xpad *xpad, __le16 *data);
+static void xpad_process_packet(struct usb_xpad *xpad, u16 cmd,
+	unsigned char *data);
+static void xpad360_process_packet(struct usb_xpad *xpad, u16 cmd,
+	unsigned char *data);
+static void xpad360w_identify_controller(struct usb_xpad *xpad);
+static void xpad360w_process_packet(struct usb_xpad *xpad, u16 cmd,
+	unsigned char *data);
+static void xpad_irq_in(struct urb *urb);
+static void xpad_irq_out(struct urb *urb);
+static int xpad_init_output(struct usb_interface *intf, struct usb_xpad *xpad);
+static void xpad_stop_output(struct usb_xpad *xpad);
+static void xpad_stop_output(struct usb_xpad *xpad);
+static int xpad_play_effect(struct input_dev *dev, void *data,
+			    struct ff_effect *effect);
+static int xpad_init_ff(struct usb_xpad *xpad);
+#ifdef CONFIG_JOYSTICK_XPAD_LEDS
+static void xpad_send_led_command(struct usb_xpad *xpad, int command);
+static void xpad_led_set(struct led_classdev *led_cdev,
+	enum led_brightness value);
+static int xpad_led_probe(struct usb_xpad *xpad);
+static void xpad_led_disconnect(struct usb_xpad *xpad);
+#endif
+static int xpad_open(struct input_dev *dev);
+static void xpad_close(struct input_dev *dev);
+static void xpad_set_up_abs(struct input_dev *input_dev, signed short abs);
+static int xpad_probe(struct usb_interface *intf,
+	const struct usb_device_id *id);
+static void xpad_disconnect(struct usb_interface *intf);
+static int __init usb_xpad_init(void);
+static void __exit usb_xpad_exit(void);
+
+
+/* sysfs interface */
+static ssize_t xpad_show_uint(struct device *dev, struct device_attribute *attr,
+		char *buf);
+static ssize_t xpad_store_uint(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count);
+static ssize_t xpad_store_bool(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count);
+static ssize_t xpad_store_ro(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count);
+static ssize_t xpad_show_int(struct device *dev, struct device_attribute *attr,
+		char *buf);
+static ssize_t xpad_show_id(struct device *dev,
+		struct device_attribute *attr, char *buf);
+
+
+
+/* Device attributes */
+static DEVICE_ATTR(left_dead_zone, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(right_dead_zone, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(left_stick_limit, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(right_stick_limit, 0644, xpad_show_uint, xpad_store_uint);
+static DEVICE_ATTR(rumble_enable, 0644, xpad_show_int, xpad_store_bool);
+static DEVICE_ATTR(left_trigger_full_axis, 0644, xpad_show_int,
+			xpad_store_bool);
+static DEVICE_ATTR(right_trigger_full_axis, 0644, xpad_show_int,
+			xpad_store_bool);
+static DEVICE_ATTR(controller_number, 0444, xpad_show_int, xpad_store_ro);
+static DEVICE_ATTR(controller_present, 0444, xpad_show_int, xpad_store_ro);
+static DEVICE_ATTR(controller_type, 0444, xpad_show_int, xpad_store_ro);
+static DEVICE_ATTR(id, 0444, xpad_show_id, xpad_store_ro);
+
+static struct attribute *xpad_default_attrs[] = {
+	&dev_attr_left_dead_zone.attr,
+	&dev_attr_right_dead_zone.attr,
+	&dev_attr_left_stick_limit.attr,
+	&dev_attr_right_stick_limit.attr,
+	&dev_attr_rumble_enable.attr,
+	&dev_attr_left_trigger_full_axis.attr,
+	&dev_attr_right_trigger_full_axis.attr,
+	&dev_attr_controller_number.attr,
+	&dev_attr_controller_present.attr,
+	&dev_attr_controller_type.attr,
+	&dev_attr_id.attr,
+	NULL
+};
+
+static struct attribute_group xpad_default_attr_group = {
+	.attrs = xpad_default_attrs,
+	.name = "game_device",
+};
+
+#endif
+
+/* Driver History:
+ *
+ * 2009-03-02 : Code cleanup
+ *  - used min(), max(), and abs() where appropriate, simplifying code
+ *  - moved code that generates data objects out of xpad.h and into xpad.c
+ *  - changed legacy #if defined(...) to #ifdef
+ *  - removed unnecessary typecasts
+ *  - wireless 360 controller identification now done in workqueue task
+ *  - thanks Andrew Morton, Greg K-H, and Linus Torvalds
+ *
+ * 2009-02-28 : Triggers now half-axes by default
+ *  - triggers will now be positive half-axes only, unless a full axis mapping
+ *    is enabled via the sysfs interface on a per-trigger basis
+ *  - moved INIT_WORK to xpad_probe and removed INIT_WORK/PREPARE_WORK from
+ *    interrupt handler; also removed the work_pending flag from struct
+ *    usb_xpad (always flush shared workqueue on unload)
+ *  - read-write sysfs attributes now have 644 default permissions
+ *
+ * 2009-02-23 : Changes per mailing list (thanks Frederic Weisbecker)
+ *  - no more check for CONFIG_SYSFS: sysfs functions will simply return
+ *    0 if sysfs has not been enabled
+ *  - fixed weird ordering in sscanf return check
+ *  - checked code with scripts/checkpatch.pl and made style adjustments
+ *
+ * 2009-02-21 : Refactored and changed stick handling
+ *  - split code into two pieces (xpad.h and xpad.c)
+ *  - cleaned up sysfs interface
+ *  - changed square axis algorithm to an axis limit algorithm, which allows
+ *    size of inscribed square to be adjusted; available for both sticks
+ *  - dead zones now per-stick
+ *
+ * 2009-02-18 : Changes per mailing list (and some additions)
+ *  - revised sysfs interface (thanks Greg K-H)
+ *  - check return values of sscanf (thanks Oliver Neukum)
+ *  - urb submission while holding mutex now once again GFP_KERNEL
+ *    (thanks Oliver Neukum)
+ *  - work structure fixes (thanks Oliver Neukum)
+ *  - uevents generated for wireless controller online/offline
+ *  - sysfs interface only if CONFIG_SYSFS is set
+ *
+ * 2009-02-15 : Minor adjustments
+ *  - added KOBJ_ONLINE/KOBJ_OFFLINE events when controllers are connected to
+ *    or disconnected from the wireless 360 receiver
+ *  - ignore duplicate connect messages on the same connection
+ *  - added option to enable/disable rumble on a per-controller basis
+ *  - rumble events are not sent to guitar or dance pad devices
+ *
+ * 2009-02-14 : Added sysfs interface
+ *  - dead zones and square axis settings can now be made per-controller
+ *  - removed dead_zone and square_axis module parameters (use sysfs)
+ *  - new square axis algorithm
+ *
+ * 2009-02-13 : Disable square axis for right stick
+ *  - square axis applies to left stick only
+ *
+ * 2009-02-12 : Scaling for dead zone and square axis support
+ *  - axes now scale from 0 to 32767 starting at edge of dead zone
+ *  - increased default dead zone to 8192
+ *  - initial square axis support (reliable only with left stick)
+ *
+ * 2009-02-07 : More wireless 360 controller fixes
+ *  - removed bulk urb completely
+ *  - use xpad_send_led_command to set controller number on LED display
+ *    (wireless 360 controller)
+ *  - dead_zone is now an adjustable module parameter
+ *
+ * 2009-02-06 : Axis handling improvements
+ *  - unified handler for left and right sticks
+ *  - initial support for dead zones
+ *
+ * 2009-02-02 : Wireless 360 controller fixes
+ *  - followed PROTOCOL description from xboxdrv userspace driver
+ *  - LED and rumble support added for wireless 360 controller (protocol
+ *    is different from wired!)
+ *
+ * 2004-10-02 - 0.0.6 : DDR pad support
+ *  - borrowed from the XBOX linux kernel
+ *  - USB id's for commonly used dance pads are present
+ *  - dance pads will map D-PAD to buttons, not axes
+ *  - pass the module paramater 'dpad_to_buttons' to force
+ *    the D-PAD to map to buttons if your pad is not detected
+ *
+ * 2002-07-17 - 0.0.5 : simplified d-pad handling
+ *
+ * 2002-07-16 - 0.0.4 : minor changes, merge with Vojtech's v0.0.3
+ *  - verified the lack of HID and report descriptors
+ *  - verified that ALL buttons WORK
+ *  - fixed d-pad to axes mapping
+ *
+ * 2002-07-14 - 0.0.3 : rework by Vojtech Pavlik
+ *  - indentation fixes
+ *  - usb + input init sequence fixes
+ *
+ * 2002-07-02 - 0.0.2 : basic working version
+ *  - all axes and 9 of the 10 buttons work (german InterAct device)
+ *  - the black button does not work
+ *
+ * 2002-06-27 - 0.0.1 : first version, just said "XBOX HID controller"
+ *
+ */
diff -NurpP --minimal linux-5.12/drivers/net/ethernet/Kconfig linux-5.12-xenon/drivers/net/ethernet/Kconfig
--- linux-5.12/drivers/net/ethernet/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/net/ethernet/Kconfig	2021-06-01 21:43:02.559664567 +0200
@@ -180,5 +180,6 @@ source "drivers/net/ethernet/via/Kconfig
 source "drivers/net/ethernet/wiznet/Kconfig"
 source "drivers/net/ethernet/xilinx/Kconfig"
 source "drivers/net/ethernet/xircom/Kconfig"
+source "drivers/net/ethernet/xenon/Kconfig"
 
 endif # ETHERNET
diff -NurpP --minimal linux-5.12/drivers/net/ethernet/Makefile linux-5.12-xenon/drivers/net/ethernet/Makefile
--- linux-5.12/drivers/net/ethernet/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/net/ethernet/Makefile	2021-06-01 21:43:02.563664633 +0200
@@ -86,6 +86,7 @@ obj-$(CONFIG_NET_VENDOR_STMICRO) += stmi
 obj-$(CONFIG_NET_VENDOR_SUN) += sun/
 obj-$(CONFIG_NET_VENDOR_TEHUTI) += tehuti/
 obj-$(CONFIG_NET_VENDOR_TI) += ti/
+obj-$(CONFIG_NET_XENON) += xenon/
 obj-$(CONFIG_NET_VENDOR_TOSHIBA) += toshiba/
 obj-$(CONFIG_NET_VENDOR_TUNDRA) += tundra/
 obj-$(CONFIG_NET_VENDOR_VIA) += via/
diff -NurpP --minimal linux-5.12/drivers/net/ethernet/xenon/Kconfig linux-5.12-xenon/drivers/net/ethernet/xenon/Kconfig
--- linux-5.12/drivers/net/ethernet/xenon/Kconfig	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/net/ethernet/xenon/Kconfig	2021-06-01 21:43:02.563664633 +0200
@@ -0,0 +1,3 @@
+config NET_XENON
+       tristate "Xenon Fast Ethernet Adapter support"
+       depends on PCI
diff -NurpP --minimal linux-5.12/drivers/net/ethernet/xenon/Makefile linux-5.12-xenon/drivers/net/ethernet/xenon/Makefile
--- linux-5.12/drivers/net/ethernet/xenon/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/net/ethernet/xenon/Makefile	2021-06-01 21:43:02.563664633 +0200
@@ -0,0 +1 @@
+obj-$(CONFIG_NET_XENON) += xenon_net.o
diff -NurpP --minimal linux-5.12/drivers/net/ethernet/xenon/xenon_net.c linux-5.12-xenon/drivers/net/ethernet/xenon/xenon_net.c
--- linux-5.12/drivers/net/ethernet/xenon/xenon_net.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/net/ethernet/xenon/xenon_net.c	2021-06-01 21:43:02.563664633 +0200
@@ -0,0 +1,768 @@
+/*
+ * xenon_net.c: Driver for Xenon Southbridge Fast Ethernet
+ *
+ * Copyright 2007 Felix Domke <tmbinc@elitedvb.net>
+ * Minor modification by: wolie <wolie@telia.com>
+ * More modifications by: Justin Moore
+ *
+ * Licensed under the GPL v2.
+ */
+
+// Documentation for NAPI can be found at:
+// https://wiki.linuxfoundation.org/networking/napi
+
+#include <linux/crc32.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/ethtool.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/pci.h>
+
+#include <asm/io.h>
+#include <asm/udbg.h>
+
+#define DEBUG
+#if defined(DEBUG)
+#define DBG udbg_printf
+#else
+#define DBG pr_debug
+#endif
+
+#define XENONNET_VERSION "1.0.1"
+#define MODNAME "xenon_net"
+#define XENONNET_DRIVER_LOAD_MSG                                               \
+	"Xenon Fast Ethernet driver " XENONNET_VERSION " loaded"
+#define PFX MODNAME ": "
+
+#define RX_RING_SIZE 16
+#define TX_RING_SIZE 16
+
+#define TX_TIMEOUT (6 * HZ)
+
+static char version[] = KERN_INFO XENONNET_DRIVER_LOAD_MSG "\n";
+
+static struct pci_device_id xenon_net_pci_tbl[] = {
+	{PCI_VENDOR_ID_MICROSOFT, 0x580a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{
+		0,
+	}};
+
+MODULE_DEVICE_TABLE(pci, xenon_net_pci_tbl);
+
+/* Symbolic offsets to registers. */
+enum XENONNET_registers {
+	TX_CONFIG = 0x00,
+	TX_DESCRIPTOR_BASE = 0x04,
+	TX_DESCRIPTOR_STATUS = 0x0C,
+	RX_CONFIG = 0x10,
+	RX_DESCRIPTOR_BASE = 0x14,
+	INTERRUPT_STATUS = 0x20,
+	INTERRUPT_MASK = 0x24,
+	CONFIG_0 = 0x28,
+	POWER = 0x30,
+	PHY_CONFIG = 0x40,
+	PHY_CONTROL = 0x44,
+	CONFIG_1 = 0x50,
+	RETRY_COUNT = 0x54,
+	MULTICAST_FILTER_CONTROL = 0x60,
+	ADDRESS_0 = 0x62,
+	MULTICAST_HASH = 0x68,
+	MAX_PACKET_SIZE = 0x78,
+	ADDRESS_1 = 0x7A
+};
+
+struct xenon_net_private {
+	void *mmio_addr;
+
+	struct net_device *dev2;
+	struct napi_struct napi;
+
+	struct pci_dev *pdev;
+	struct net_device_stats stats;
+
+	/* we maintain a list of rx and tx descriptors */
+	void *tx_descriptor_base;
+	void *rx_descriptor_base;
+	dma_addr_t tx_descriptor_base_dma;
+	dma_addr_t rx_descriptor_base_dma;
+
+	struct sk_buff *rx_skbuff[RX_RING_SIZE];
+	dma_addr_t rx_skbuff_dma[RX_RING_SIZE];
+
+	struct sk_buff *tx_skbuff[TX_RING_SIZE];
+	dma_addr_t tx_skbuff_dma[TX_RING_SIZE];
+
+	atomic_t tx_next_free, tx_next_done;
+
+	int rx_buf_sz, rx_next;
+
+	spinlock_t lock;
+};
+
+static void xenon_set_tx_descriptor(struct xenon_net_private *tp, int index,
+				    u32 len, dma_addr_t addr, int valid)
+{
+	volatile u32 *descr = tp->tx_descriptor_base + index * 0x10;
+	descr[0] = cpu_to_le32(len);
+	descr[2] = cpu_to_le32(addr);
+	descr[3] =
+	    cpu_to_le32(len | ((index == TX_RING_SIZE - 1) ? 0x80000000 : 0));
+	wmb();
+	if (valid)
+		descr[1] = cpu_to_le32(0xc0230000);
+	else
+		descr[1] = 0;
+}
+
+static void xenon_set_rx_descriptor(struct xenon_net_private *tp, int index,
+				    u32 len, dma_addr_t addr, int valid)
+{
+	volatile u32 *descr = tp->rx_descriptor_base + index * 0x10;
+	descr[0] = cpu_to_le32(0);
+	descr[2] = cpu_to_le32(addr);
+	descr[3] =
+	    cpu_to_le32(len | ((index == RX_RING_SIZE - 1) ? 0x80000000 : 0));
+	wmb();
+	if (valid)
+		descr[1] = cpu_to_le32(0xc0000000);
+	else
+		descr[1] = 0;
+}
+
+static int xenon_net_tx_interrupt(struct net_device *dev,
+				   struct xenon_net_private *tp, void *ioaddr)
+{
+	int work = 0;
+
+	BUG_ON(dev == NULL);
+	BUG_ON(tp == NULL);
+	BUG_ON(ioaddr == NULL);
+
+	while (atomic_read(&tp->tx_next_free) !=
+	       atomic_read(&tp->tx_next_done)) {
+		int e = atomic_read(&tp->tx_next_done) % TX_RING_SIZE;
+
+		volatile u32 *descr = tp->tx_descriptor_base + e * 0x10;
+		if (le32_to_cpu(descr[1]) & 0x80000000)
+			break;
+
+		if (!tp->tx_skbuff[e]) {
+			printk(KERN_WARNING "spurious TX complete?!\n");
+			break;
+		}
+
+		work++;
+		pci_unmap_single(tp->pdev, tp->tx_skbuff_dma[e],
+				 tp->tx_skbuff[e]->len, PCI_DMA_TODEVICE);
+		dev_kfree_skb_irq(tp->tx_skbuff[e]);
+
+		tp->tx_skbuff[e] = 0;
+		tp->tx_skbuff_dma[e] = 0;
+
+		atomic_inc(&tp->tx_next_done);
+	}
+
+	if ((atomic_read(&tp->tx_next_free) - atomic_read(&tp->tx_next_done)) <
+	    TX_RING_SIZE)
+		netif_start_queue(dev);
+	
+	return work;
+}
+
+static int xenon_net_rx_interrupt(struct net_device *dev,
+				  struct xenon_net_private *tp, void *ioaddr,
+				  int budget)
+{
+	int received = 0; // count and send to work_done
+
+	BUG_ON(dev == NULL);
+	BUG_ON(tp == NULL);
+	BUG_ON(ioaddr == NULL);
+	BUG_ON(tp->rx_descriptor_base == NULL);
+
+	while (1) {
+		u32 size;
+		dma_addr_t mapping;
+		int index = tp->rx_next;
+		volatile u32 *descr = tp->rx_descriptor_base + index * 0x10;
+		struct sk_buff *skb = tp->rx_skbuff[index], *new_skb;
+
+		// no data available
+		if (le32_to_cpu(descr[1]) & 0x80000000)
+			break;
+
+		if (received >= budget)
+			break; /* Over-budget. */
+
+		new_skb = netdev_alloc_skb(dev, tp->rx_buf_sz);
+		if (!new_skb)
+			break; /* Failed to alloc memory, we'll break off and try again later. */
+
+		size = le32_to_cpu(descr[0]) & 0xFFFF;
+		mapping = tp->rx_skbuff_dma[index];
+		pci_unmap_single(tp->pdev, mapping, tp->rx_buf_sz,
+				 PCI_DMA_FROMDEVICE);
+
+		skb->ip_summed = CHECKSUM_NONE;
+		skb_put(skb, size);
+		skb->protocol = eth_type_trans(skb, dev);
+
+		netif_receive_skb(skb);
+		received++;
+
+		mapping = tp->rx_skbuff_dma[index] = pci_map_single(
+		    tp->pdev, new_skb->data, tp->rx_buf_sz, PCI_DMA_FROMDEVICE);
+		tp->rx_skbuff[index] = new_skb;
+
+		xenon_set_rx_descriptor(tp, index, tp->rx_buf_sz,
+					tp->rx_skbuff_dma[index], 1);
+
+		tp->rx_next = (tp->rx_next + 1) % RX_RING_SIZE;
+	}
+
+	if (received > 0) {
+		/* enable RX */
+		writel(0x00101c11, ioaddr + RX_CONFIG);
+	}
+
+	return received;
+}
+
+static int xenon_net_poll(struct napi_struct *napi, int budget)
+{
+	int work_done;
+	struct xenon_net_private *tp;
+	struct net_device *dev;
+
+	tp = container_of(napi, struct xenon_net_private, napi);
+	BUG_ON(tp == NULL);
+
+	dev = tp->dev2;
+	BUG_ON(dev == NULL);
+
+	work_done = xenon_net_rx_interrupt(dev, tp, tp->mmio_addr, budget);
+
+	/* Process the transmission ring */
+	if (xenon_net_tx_interrupt(dev, tp, tp->mmio_addr) == TX_RING_SIZE) {
+		/* We've processed the entire ring, so count it against the rest of the budget. */
+		work_done = max(work_done, budget);
+	}
+
+	if (work_done < budget) {
+		/* Re-enable network interrupts. */
+		writel(0x00010044, tp->mmio_addr + INTERRUPT_MASK);
+		napi_complete(napi);
+	}
+
+	return work_done;
+}
+
+static irqreturn_t xenon_net_interrupt(int irq, void *dev_id)
+{
+	struct net_device *dev = dev_id;
+	struct xenon_net_private *tp = netdev_priv(dev);
+	void *ioaddr = tp->mmio_addr;
+	u32 status;
+
+	spin_lock(&tp->lock);
+	status = readl(ioaddr + INTERRUPT_STATUS);
+
+	/* tx or rx interrupt */
+	if (status & 0x0000004C) {
+		/* Disable interrupts. */
+		writel(0, ioaddr + INTERRUPT_MASK);
+
+		if (napi_schedule_prep(&tp->napi)) {
+			__napi_schedule(&tp->napi);
+		}
+	}
+
+	spin_unlock(&tp->lock);
+	return IRQ_HANDLED;
+}
+
+#if defined(CONFIG_NET_POLL_CONTROLLER)
+/*
+ * Polling receive - used by netconsole and other diagnostic tools
+ * to allow network i/o with interrupts disabled.
+ */
+static void xenon_net_poll_controller(struct net_device *dev)
+{
+	struct xenon_net_private *tp = netdev_priv(dev);
+	napi_schedule(&tp->napi);
+}
+#endif
+
+/* Initialize the Rx and Tx rings, along with various 'dev' bits. */
+static void xenon_net_init_ring(struct net_device *dev)
+{
+	struct xenon_net_private *tp = netdev_priv(dev);
+	int i;
+
+	tp->rx_next = 0;
+	atomic_set(&tp->tx_next_done, 0);
+	atomic_set(&tp->tx_next_free, 0);
+
+	for (i = 0; i < TX_RING_SIZE; i++) {
+		tp->tx_skbuff[i] = NULL;
+		tp->tx_skbuff_dma[i] = 0;
+	}
+
+	/* allocate descriptor memory */
+	tp->tx_descriptor_base = pci_alloc_consistent(
+	    tp->pdev, TX_RING_SIZE * 0x10 + RX_RING_SIZE * 0x10,
+	    &tp->tx_descriptor_base_dma);
+
+	/* rx is right after tx */
+	tp->rx_descriptor_base = tp->tx_descriptor_base + TX_RING_SIZE * 0x10;
+	tp->rx_descriptor_base_dma =
+	    tp->tx_descriptor_base_dma + TX_RING_SIZE * 0x10;
+
+	for (i = 0; i < TX_RING_SIZE; ++i)
+		xenon_set_tx_descriptor(tp, i, 0, 0, 0);
+
+	tp->rx_buf_sz = dev->mtu + 32;
+
+	for (i = 0; i < RX_RING_SIZE; ++i) {
+		struct sk_buff *skb = dev_alloc_skb(tp->rx_buf_sz);
+		tp->rx_skbuff[i] = skb;
+		if (skb == NULL)
+			break;
+
+		skb->dev = dev; /* Mark as being used by this device. */
+		tp->rx_skbuff_dma[i] = pci_map_single(
+		    tp->pdev, skb->data, tp->rx_buf_sz, PCI_DMA_FROMDEVICE);
+
+		xenon_set_rx_descriptor(tp, i, tp->rx_buf_sz,
+					tp->rx_skbuff_dma[i], 1);
+	}
+}
+
+static int xenon_net_set_mac(struct net_device *dev, void *p)
+{
+	struct xenon_net_private *tp = netdev_priv(dev);
+	void *ioaddr = tp->mmio_addr;
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	/* Write the MAC */
+	writew(cpu_to_le16(*(u16 *)(addr->sa_data)), ioaddr + ADDRESS_0);
+	writel(cpu_to_le32(*(u32 *)(addr->sa_data + 2)),
+	       ioaddr + ADDRESS_0 + 2);
+
+	writew(cpu_to_le16(*(u16 *)(addr->sa_data)), ioaddr + ADDRESS_1);
+	writel(cpu_to_le32(*(u32 *)(addr->sa_data + 2)),
+	       ioaddr + ADDRESS_1 + 2);
+
+	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
+	return 0;
+}
+
+/* Start the hardware at open or resume. */
+static void xenon_net_hw_start(struct net_device *dev)
+{
+	struct xenon_net_private *tp = netdev_priv(dev);
+	void *ioaddr = tp->mmio_addr;
+
+	/* Soft reset the chip. */
+	writel(0, ioaddr + INTERRUPT_MASK);
+	writel(0x08558001, ioaddr + CONFIG_0);
+	udelay(100);
+	writel(0x08550001, ioaddr + CONFIG_0);
+
+	writel(4, ioaddr + PHY_CONTROL);
+	udelay(100);
+	writel(0, ioaddr + PHY_CONTROL);
+
+	writew(1522, ioaddr + MAX_PACKET_SIZE);
+
+	writel(0x2360, ioaddr + CONFIG_1);
+
+	writew(0x0e38, ioaddr + MULTICAST_FILTER_CONTROL);
+
+	/* Restore our idea of the MAC address. */
+	writew(cpu_to_le16(*(u16 *)(dev->dev_addr + 0)), ioaddr + ADDRESS_0);
+	writel(cpu_to_le32(*(u32 *)(dev->dev_addr + 2)),
+	       ioaddr + ADDRESS_0 + 2);
+
+	writew(cpu_to_le16(*(u16 *)(dev->dev_addr + 0)), ioaddr + ADDRESS_1);
+	writel(cpu_to_le32(*(u32 *)(dev->dev_addr + 2)),
+	       ioaddr + ADDRESS_1 + 2);
+
+	writel(0, ioaddr + MULTICAST_HASH);
+	writel(0, ioaddr + MULTICAST_HASH + 4);
+
+	writel(0x00001c00, ioaddr + TX_CONFIG);
+	writel(0x00101c00, ioaddr + RX_CONFIG);
+
+	writel(0x04001901, ioaddr + PHY_CONFIG);
+
+	tp->rx_next = 0;
+
+	/* write base 0 */
+	writel(0x00001c00, ioaddr + TX_CONFIG);
+	writel(tp->tx_descriptor_base_dma, ioaddr + TX_DESCRIPTOR_BASE);
+
+	/* write base 1 */
+	writel(0x00011c00, ioaddr + TX_CONFIG);
+	writel(tp->tx_descriptor_base_dma, ioaddr + TX_DESCRIPTOR_BASE);
+	writel(0x00001c00, ioaddr + TX_CONFIG);
+
+	writel(tp->rx_descriptor_base_dma, ioaddr + RX_DESCRIPTOR_BASE);
+	writel(0x04001001, ioaddr + PHY_CONFIG);
+	writel(0, ioaddr + CONFIG_1);
+
+	writel(0x08550001, ioaddr + CONFIG_0);
+
+	writel(0x00001c01, ioaddr + TX_CONFIG); /* enable tx */
+	writel(0x00101c11, ioaddr + RX_CONFIG); /* enable rx */
+
+	// Interrupts:
+	// 0x20000000 = ??
+	// 0x00010000 = multicast related
+	// 0x00000040 = rx
+	// 0x00000008 = tx (1)
+	// 0x00000004 = tx (0)
+	writel(0x00010044, ioaddr + INTERRUPT_MASK);
+	writel(0x00010044, ioaddr + INTERRUPT_STATUS);
+
+	netif_start_queue(dev);
+}
+
+static int xenon_net_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct xenon_net_private *tp = netdev_priv(dev);
+	void *ioaddr = tp->mmio_addr;
+	int entry;
+	dma_addr_t mapping;
+	u32 len;
+	unsigned long flags;
+
+	spin_lock_irqsave(&tp->lock, flags);
+
+	/* Calculate the next Tx descriptor entry. */
+	entry = atomic_read(&tp->tx_next_free) % TX_RING_SIZE;
+
+	BUG_ON(tp->tx_skbuff[entry] != NULL);
+	BUG_ON(tp->tx_skbuff_dma[entry] != 0);
+	BUG_ON(skb_shinfo(skb)->nr_frags != 0);
+
+	tp->tx_skbuff[entry] = skb;
+
+	len = skb->len;
+
+	mapping = pci_map_single(tp->pdev, skb->data, len, PCI_DMA_TODEVICE);
+	tp->tx_skbuff_dma[entry] = mapping;
+
+	xenon_set_tx_descriptor(tp, entry, skb->len, mapping, 1);
+
+	atomic_inc(&tp->tx_next_free);
+	if ((atomic_read(&tp->tx_next_free) - atomic_read(&tp->tx_next_done)) >=
+	    TX_RING_SIZE) {
+		netif_stop_queue(dev);
+	}
+
+	writel(0x00101c11, ioaddr + TX_CONFIG); /* enable TX */
+
+	spin_unlock_irqrestore(&tp->lock, flags);
+
+	return NETDEV_TX_OK;
+}
+
+static void xenon_net_tx_clear(struct xenon_net_private *tp)
+{
+	int i;
+
+	atomic_set(&tp->tx_next_free, 0);
+	atomic_set(&tp->tx_next_done, 0);
+
+	/* Dump the unsent Tx packets. */
+	for (i = 0; i < TX_RING_SIZE; i++) {
+		if (tp->tx_skbuff_dma[i] != 0) {
+			pci_unmap_single(tp->pdev, tp->tx_skbuff_dma[i],
+					 tp->tx_skbuff[i]->len,
+					 PCI_DMA_TODEVICE);
+		}
+		if (tp->tx_skbuff[i]) {
+			dev_kfree_skb(tp->tx_skbuff[i]);
+			tp->tx_skbuff[i] = NULL;
+			tp->stats.tx_dropped++;
+		}
+	}
+}
+
+static void xenon_net_tx_timeout(struct net_device *dev, unsigned int txqueue)
+{
+	/* Error handling was taken from eexpress.c */
+	struct xenon_net_private *tp = netdev_priv(dev);
+	void *ioaddr = tp->mmio_addr;
+	unsigned long flags;
+
+	printk(KERN_INFO "%s: transmit timed out, resetting.\n", dev->name);
+	writel(0, ioaddr + INTERRUPT_MASK);
+	disable_irq(dev->irq);
+
+	/* Stop a shared interrupt from scavenging while we are. */
+	spin_lock_irqsave(&tp->lock, flags);
+	xenon_net_tx_clear(tp);
+	xenon_net_hw_start(dev);  // this will re-enable interrupts
+	spin_unlock_irqrestore(&tp->lock, flags);
+	enable_irq(dev->irq);
+
+	tp->stats.tx_errors++;
+	netif_wake_queue(dev);
+}
+
+static int xenon_net_open(struct net_device *dev)
+{
+	int retval;
+
+	struct xenon_net_private *tp = netdev_priv(dev);
+
+	retval = request_irq(dev->irq, xenon_net_interrupt, IRQF_SHARED,
+			     dev->name, dev);
+	if (retval)
+		return retval;
+
+	xenon_net_init_ring(dev); /* allocates ringbuffer, clears them */
+	xenon_net_hw_start(dev);  /* start HW */
+	napi_enable(&tp->napi);
+	netif_carrier_on(dev);
+
+	return 0;
+}
+
+static int xenon_net_close(struct net_device *dev)
+{
+	struct xenon_net_private *tp = netdev_priv(dev);
+	void *ioaddr = tp->mmio_addr;
+
+	// Disable interrupts
+	writel(0, ioaddr + INTERRUPT_MASK);
+	disable_irq(dev->irq);
+
+	netif_carrier_off(dev);
+	netif_stop_queue(dev);
+	napi_disable(&tp->napi);
+	free_irq(dev->irq, dev);
+	xenon_net_tx_clear(tp);
+
+	pci_free_consistent(tp->pdev, TX_RING_SIZE * 0x10 + RX_RING_SIZE * 0x10,
+			    tp->tx_descriptor_base, tp->tx_descriptor_base_dma);
+
+	// BUG: Race condition with xenon_net_poll (napi_disable should stop it?)
+	tp->tx_descriptor_base = NULL;
+	tp->rx_descriptor_base = NULL;
+
+	return 0;
+}
+
+static struct net_device_ops xenon_netdev_ops = {
+    .ndo_open 		= xenon_net_open,
+    .ndo_stop 		= xenon_net_close,
+    .ndo_start_xmit = xenon_net_start_xmit,
+    .ndo_tx_timeout = xenon_net_tx_timeout,
+    .ndo_set_mac_address	= xenon_net_set_mac,
+    .ndo_validate_addr 		= eth_validate_addr,
+    //	.ndo_set_multicast_list = xenon_net_set_multicast_list,
+    //  .ndo_set_mac_address 	= eth_mac_addr,
+    //	.ndo_change_mtu 		= xenon_net_change_mtu,
+#if defined(CONFIG_NET_POLL_CONTROLLER)
+    .ndo_poll_controller = xenon_net_poll_controller,
+#endif
+};
+
+static int xenon_net_init_board(struct pci_dev *pdev,
+				struct net_device **dev_out, void **ioaddr_out)
+{
+	void *ioaddr = NULL;
+	struct net_device *dev;
+	struct xenon_net_private *tp;
+	int rc, i;
+	unsigned long mmio_start, mmio_end, mmio_flags, mmio_len;
+
+	BUG_ON(pdev == NULL);
+	BUG_ON(ioaddr_out == NULL);
+
+	*ioaddr_out = NULL;
+	*dev_out = NULL;
+
+	/* dev zeroed in alloc_etherdev */
+	dev = alloc_etherdev(sizeof(*tp));
+	if (dev == NULL) {
+		dev_err(&pdev->dev, "unable to alloc new ethernet\n");
+		return -ENOMEM;
+	}
+	SET_NETDEV_DEV(dev, &pdev->dev);
+	tp = netdev_priv(dev);
+
+	/* enable device (incl. PCI PM wakeup), and bus-mastering */
+	rc = pci_enable_device(pdev);
+	if (rc)
+		goto err_out;
+
+	mmio_start = pci_resource_start(pdev, 0);
+	mmio_end = pci_resource_end(pdev, 0);
+	mmio_flags = pci_resource_flags(pdev, 0);
+	mmio_len = pci_resource_len(pdev, 0);
+
+	/* make sure PCI base addr 0 is MMIO */
+	if (!(mmio_flags & IORESOURCE_MEM)) {
+		dev_err(&pdev->dev,
+			"region #0 not an MMIO resource, aborting\n");
+		rc = -ENODEV;
+		goto err_out;
+	}
+
+	rc = pci_request_regions(pdev, MODNAME);
+	if (rc)
+		goto err_out;
+
+	pci_set_master(pdev);
+
+	/* ioremap MMIO region */
+	ioaddr = ioremap(mmio_start, mmio_len);
+	if (ioaddr == NULL) {
+		dev_err(&pdev->dev, "cannot remap MMIO, aborting\n");
+		rc = -EIO;
+		goto err_out_free_res;
+	}
+
+	dev->netdev_ops = &xenon_netdev_ops;
+	i = register_netdev(dev);
+	if (i)
+		goto err_out_unmap;
+
+	*ioaddr_out = ioaddr;
+	*dev_out = dev;
+	return 0;
+
+err_out_unmap:
+#ifndef USE_IO_OPS
+	iounmap(ioaddr);
+err_out_free_res:
+#endif
+	pci_release_regions(pdev);
+err_out:
+	free_netdev(dev);
+	return rc;
+}
+
+static int xenon_net_init_one(struct pci_dev *pdev,
+			      const struct pci_device_id *ent)
+{
+	struct net_device *dev = NULL;
+	struct xenon_net_private *tp;
+	void *ioaddr = NULL;
+	struct sockaddr addr;
+	int rc;
+
+/* when built into the kernel, we only print version if device is found */
+#ifndef MODULE
+	static int printed_version;
+	if (!printed_version++)
+		printk(version);
+#endif
+
+	BUG_ON(pdev == NULL);
+	BUG_ON(ent == NULL);
+
+	rc = xenon_net_init_board(pdev, &dev, &ioaddr);
+	if (rc < 0)
+		return rc;
+
+	tp = netdev_priv(dev);
+
+	BUG_ON(ioaddr == NULL);
+	BUG_ON(dev == NULL);
+	BUG_ON(tp == NULL);
+
+	tp->dev2 = dev;
+	//	dev->ethtool_ops = &xenon_net_ethtool_ops;
+	dev->watchdog_timeo = TX_TIMEOUT;
+
+	netif_napi_add(dev, &tp->napi, xenon_net_poll, 64);
+
+	dev->irq = pdev->irq;
+	dev->base_addr = (unsigned long)ioaddr;
+
+	/* priv/tp zeroed and aligned in alloc_etherdev */
+	tp = netdev_priv(dev);
+
+	tp->pdev = pdev;
+	tp->mmio_addr = ioaddr;
+	spin_lock_init(&tp->lock);
+
+	pci_set_drvdata(pdev, dev);
+
+	// FIXME: Need to get the MAC from NAND.
+	memcpy(addr.sa_data, "\x00\x01\x30\x44\x55\x66", 6); /* same as xell */
+	rc = xenon_net_set_mac(dev, &addr);
+	if (rc)
+		dev_err(&pdev->dev, "Failed to set MAC address: %i\n", rc);
+
+	printk(KERN_INFO "%s: %pM, IRQ %d\n",
+	       dev->name, dev->dev_addr, dev->irq);
+
+	return 0;
+}
+
+static void xenon_net_remove_one(struct pci_dev *pdev)
+{
+	struct net_device *dev = pci_get_drvdata(pdev);
+	struct xenon_net_private *np;
+
+	BUG_ON(dev == NULL);
+
+	np = netdev_priv(dev);
+	BUG_ON(np == NULL);
+
+	unregister_netdev(dev);
+
+#ifndef USE_IO_OPS
+	iounmap(np->mmio_addr);
+#endif /* !USE_IO_OPS */
+
+	pci_release_regions(pdev);
+
+	free_netdev(dev);
+
+	pci_set_drvdata(pdev, NULL);
+
+	pci_disable_device(pdev);
+}
+
+static struct pci_driver xenon_net_pci_driver = {
+    .name = MODNAME,
+    .id_table = xenon_net_pci_tbl,
+    .probe = xenon_net_init_one,
+    .remove = xenon_net_remove_one,
+};
+
+static int __init xenon_net_init_module(void)
+{
+/* when a module, this is printed whether or not devices are found in probe */
+#ifdef MODULE
+	printk(version);
+#endif
+	return pci_register_driver(&xenon_net_pci_driver);
+}
+
+static void __exit xenon_net_cleanup_module(void)
+{
+	pci_unregister_driver(&xenon_net_pci_driver);
+}
+
+module_init(xenon_net_init_module);
+module_exit(xenon_net_cleanup_module);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Felix Domke <tmbinc@elitedvb.net>");
+MODULE_DESCRIPTION("Xenon Southbridge Fast Ethernet Driver");
diff -NurpP --minimal linux-5.12/drivers/rtc/Kconfig linux-5.12-xenon/drivers/rtc/Kconfig
--- linux-5.12/drivers/rtc/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/rtc/Kconfig	2021-06-01 21:50:43.731851260 +0200
@@ -1620,6 +1620,17 @@ config RTC_DRV_PS3
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-ps3.
 
+config RTC_DRV_XENON
+	tristate "Xenon RTC"
+	depends on PPC_XENON
+	help
+	  If you say yes here you will get support for the RTC on the
+	  Xbox 360.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-xenon.
+
+
 config RTC_DRV_STMP
 	tristate "Freescale STMP3xxx/i.MX23/i.MX28 RTC"
 	depends on ARCH_MXS || COMPILE_TEST
diff -NurpP --minimal linux-5.12/drivers/rtc/Makefile linux-5.12-xenon/drivers/rtc/Makefile
--- linux-5.12/drivers/rtc/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/rtc/Makefile	2021-06-01 21:43:02.563664633 +0200
@@ -175,5 +175,6 @@ obj-$(CONFIG_RTC_DRV_WILCO_EC)	+= rtc-wi
 obj-$(CONFIG_RTC_DRV_WM831X)	+= rtc-wm831x.o
 obj-$(CONFIG_RTC_DRV_WM8350)	+= rtc-wm8350.o
 obj-$(CONFIG_RTC_DRV_X1205)	+= rtc-x1205.o
+obj-$(CONFIG_RTC_DRV_XENON)	+= rtc-xenon.o
 obj-$(CONFIG_RTC_DRV_XGENE)	+= rtc-xgene.o
 obj-$(CONFIG_RTC_DRV_ZYNQMP)	+= rtc-zynqmp.o
diff -NurpP --minimal linux-5.12/drivers/rtc/rtc-xenon.c linux-5.12-xenon/drivers/rtc/rtc-xenon.c
--- linux-5.12/drivers/rtc/rtc-xenon.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/rtc/rtc-xenon.c	2021-06-01 21:43:02.563664633 +0200
@@ -0,0 +1,134 @@
+/*
+ *  Xenon RTC via SMC driver.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+
+
+#define DRV_NAME	"rtc-xenon"
+#define DRV_VERSION	"0.1"
+
+	/* for whatever reason, 15.Nov.2001 00:00 GMT */
+#define	RTC_BASE	1005782400UL
+
+
+int xenon_smc_message_wait(void *msg);
+
+static unsigned long xenon_get_rtc(void)
+{
+	unsigned char msg[16] = { 0x04 };
+	unsigned long msec;
+
+	xenon_smc_message_wait(msg);
+	msec = msg[1] | (msg[2] << 8) | (msg[3] << 16) |
+		(msg[4] << 24) | ((unsigned long)msg[5] << 32);
+	return RTC_BASE + msec/1000;
+}
+
+void xenon_smc_message(void *msg);
+
+static int xenon_set_rtc(unsigned long secs)
+{
+	unsigned long msec = (secs - RTC_BASE) * 1000;
+	unsigned char msg[16] = {
+		0x85, msec & 0xFF, (msec >> 8) & 0xFF,
+		(msec >> 16) & 0xFF, (msec >> 24) & 0xFF,
+		(msec >> 32) & 0xFF };
+
+	xenon_smc_message(msg);
+	return 0;
+}
+
+static int xenon_read_time(struct device *dev, struct rtc_time *tm)
+{
+	rtc_time64_to_tm(xenon_get_rtc(), tm);
+	return 0;
+}
+
+
+static int xenon_set_time(struct device *dev, struct rtc_time *tm)
+{
+	unsigned long time = 0;
+	// int err;
+
+	time = rtc_tm_to_time64(tm);
+	// if (err)
+	//	return err;
+
+	return xenon_set_rtc(time);
+}
+
+static const struct rtc_class_ops xenon_rtc_ops = {
+	.read_time	= xenon_read_time,
+	.set_time	= xenon_set_time,
+};
+
+static int __init xenon_rtc_probe(struct platform_device *pdev)
+{
+	struct rtc_device *rtc = rtc_device_register(DRV_NAME, &pdev->dev,
+				     &xenon_rtc_ops, THIS_MODULE);
+
+	printk("xenon_rtc_probe(%p) = %p\n", pdev, rtc);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+
+	platform_set_drvdata(pdev, rtc);
+	return 0;
+}
+
+static int __exit xenon_rtc_remove(struct platform_device *pdev)
+{
+	struct rtc_device *rtc = platform_get_drvdata(pdev);
+
+	rtc_device_unregister(rtc);
+	return 0;
+}
+
+static struct platform_driver xenon_rtc_driver = {
+	.driver		= {
+		.name	= DRV_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.remove		= __exit_p(xenon_rtc_remove),
+};
+
+static int __init xenon_rtc_init(void)
+{
+	int ret = platform_driver_probe(&xenon_rtc_driver, xenon_rtc_probe);
+
+	printk("xenon_rtc_init() = %d\n", ret);
+	return ret;
+	// return platform_driver_probe(&xenon_rtc_driver, xenon_rtc_probe);
+}
+
+static void __exit xenon_rtc_exit(void)
+{
+	platform_driver_unregister(&xenon_rtc_driver);
+}
+
+module_init(xenon_rtc_init);
+module_exit(xenon_rtc_exit);
+
+MODULE_AUTHOR("Herbert Poetzl <herbert@13thfloor.at>");
+MODULE_DESCRIPTION("Xenon RTC driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+MODULE_ALIAS("platform:rtc-xenon");
diff -NurpP --minimal linux-5.12/drivers/scsi/scsi_scan.c linux-5.12-xenon/drivers/scsi/scsi_scan.c
--- linux-5.12/drivers/scsi/scsi_scan.c	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/scsi/scsi_scan.c	2021-06-01 21:43:02.563664633 +0200
@@ -586,6 +586,7 @@ static int scsi_probe_lun(struct scsi_de
 		memset(scsi_cmd, 0, 6);
 		scsi_cmd[0] = INQUIRY;
 		scsi_cmd[4] = (unsigned char) try_inquiry_len;
+		scsi_cmd[5] = 0xc0; /* HACK */
 
 		memset(inq_result, 0, try_inquiry_len);
 
diff -NurpP --minimal linux-5.12/drivers/tty/serial/Kconfig linux-5.12-xenon/drivers/tty/serial/Kconfig
--- linux-5.12/drivers/tty/serial/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/tty/serial/Kconfig	2021-06-01 21:43:02.567664699 +0200
@@ -1524,6 +1524,24 @@ config SERIAL_MILBEAUT_USIO_CONSOLE
 	  SoCs as the system console (the system console is the device which
 	  receives all kernel messages and warnings and which allows logins in
 	  single user mode).
+	  
+config SERIAL_XENON
+	tristate "Xenon XBOX 360 serial port support"
+	select SERIAL_CORE
+	help
+	  If you have an XBOX 360, you can enable its onboard
+	  serial port by enabling this options.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called xenon_uart.
+
+config SERIAL_XENON_CONSOLE
+	bool "Console on XBOX 360 serial port"
+	depends on SERIAL_XENON=y
+	select SERIAL_CORE_CONSOLE
+	help
+	  If you have enabled the serial port on the XBOX 360
+	  you can make it the console by answering Y to this option.
 
 config SERIAL_LITEUART
 	tristate "LiteUART serial port support"
diff -NurpP --minimal linux-5.12/drivers/tty/serial/Makefile linux-5.12-xenon/drivers/tty/serial/Makefile
--- linux-5.12/drivers/tty/serial/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/tty/serial/Makefile	2021-06-01 21:43:02.567664699 +0200
@@ -65,6 +65,7 @@ obj-$(CONFIG_SERIAL_GRLIB_GAISLER_APBUAR
 obj-$(CONFIG_SERIAL_ALTERA_JTAGUART) += altera_jtaguart.o
 obj-$(CONFIG_SERIAL_VT8500) += vt8500_serial.o
 obj-$(CONFIG_SERIAL_PCH_UART)	+= pch_uart.o
+obj-$(CONFIG_SERIAL_XENON)	+= xenon_uart.o
 obj-$(CONFIG_SERIAL_MXS_AUART) += mxs-auart.o
 obj-$(CONFIG_SERIAL_LANTIQ)	+= lantiq.o
 obj-$(CONFIG_SERIAL_XILINX_PS_UART) += xilinx_uartps.o
diff -NurpP --minimal linux-5.12/drivers/tty/serial/xenon_uart.c linux-5.12-xenon/drivers/tty/serial/xenon_uart.c
--- linux-5.12/drivers/tty/serial/xenon_uart.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/tty/serial/xenon_uart.c	2021-06-01 21:43:02.567664699 +0200
@@ -0,0 +1,418 @@
+/* linux/drivers/serial/xenon.c
+ *
+ * Driver for Xenon XBOX 360 Serial
+ *
+ * Copyright (C) 2010 Herbert Poetzl
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/serial.h>
+#include <linux/serial_core.h>
+#include <linux/console.h>
+#include <linux/module.h>
+#include <linux/io.h>
+
+#if 0
+#define	dprintk(f, x...) do {				\
+		printk(KERN_DEBUG f "\n" , ##x);	\
+	} while (0)
+#else
+#define dprintk(f, x...) do { } while (0)
+#endif
+
+
+static int xenon_status(unsigned char __iomem *membase)
+{
+	// return ((*(volatile uint32_t*)0x80000200ea001018) & 0x02000000);
+	return (*(volatile uint32_t*)(membase + 0x08));
+}
+
+static void xenon_putch(unsigned char __iomem *membase, int ch)
+{
+	/* wait for tx fifo ready */
+	while (!(xenon_status(membase) & 0x02000000));
+
+	/* put character into fifo */
+	// *(volatile uint32_t*)0x80000200ea001014 = (ch << 24) & 0xFF000000;
+	*(volatile uint32_t*)(membase + 0x04) = (ch << 24) & 0xFF000000;
+}
+
+static int xenon_getch(unsigned char __iomem *membase)
+{
+	uint32_t status;
+
+	/* wait for data ready */
+	while ((status = xenon_status(membase)) & ~0x03000000);
+
+	if (status & 0x01000000)
+		return *(volatile uint32_t*)(membase + 0x00) >> 24;
+	return -1;
+}
+
+
+
+static void xenon_stop_rx(struct uart_port *port)
+{
+	dprintk("Xenon xenon_stop_rx()");
+}
+
+static void xenon_enable_ms(struct uart_port *port)
+{
+	dprintk("Xenon xenon_enable_ms()");
+}
+
+static void xenon_stop_tx(struct uart_port *port)
+{
+	dprintk("Xenon xenon_stop_tx()");
+}
+
+static void xenon_tx_chars(struct uart_port *port)
+{
+	struct circ_buf *xmit = &port->state->xmit;
+	// int count;
+
+	if (port->x_char) {
+		xenon_putch(port->membase, port->x_char);
+		port->icount.tx++;
+		port->x_char = 0;
+		return;
+	}
+	if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
+		xenon_stop_tx(port);
+		return;
+	}
+
+#if 0
+	count = port->fifosize >> 1;
+	do {
+		xenon_putch(port->membase, xmit->buf[xmit->tail]);
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+		if (uart_circ_empty(xmit))
+			break;
+	} while (--count > 0);
+#else
+	while (!uart_circ_empty(xmit)) {
+		xenon_putch(port->membase, xmit->buf[xmit->tail]);
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+	}
+#endif
+
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(port);
+
+	if (uart_circ_empty(xmit))
+		xenon_stop_tx(port);
+}
+
+static void xenon_start_tx(struct uart_port *port)
+{
+	dprintk("Xenon xenon_start_tx()");
+	xenon_tx_chars(port);
+}
+
+
+#if 0
+static void xenon_send_xchar(struct uart_port *port, char ch)
+{
+	dprintk("Xenon xenon_send_xchar(%d)", ch);
+	xenon_putch(port->membase, ch);
+}
+#endif
+
+static unsigned int xenon_tx_empty(struct uart_port *port)
+{
+	dprintk("Xenon xenon_tx_empty()");
+	return 0;
+}
+
+static unsigned int xenon_get_mctrl(struct uart_port *port)
+{
+	dprintk("Xenon xenon_get_mctrl()");
+	return 0;
+}
+
+static void xenon_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	dprintk("Xenon xenon_set_mctrl()");
+}
+
+static void xenon_break_ctl(struct uart_port *port, int break_state)
+{
+	dprintk("Xenon xenon_break_ctl()");
+}
+
+static void xenon_set_termios(struct uart_port *port,
+			     struct ktermios *new, struct ktermios *old)
+{
+	int baud, quot, cflag = new->c_cflag;
+
+	dprintk("Xenon xenon_set_termios()");
+	/* get the byte size */
+	switch (cflag & CSIZE) {
+	case CS5:
+		dprintk(" - data bits = 5");
+		break;
+	case CS6:
+		dprintk(" - data bits = 6");
+		break;
+	case CS7:
+		dprintk(" - data bits = 7");
+		break;
+	default: // CS8
+		dprintk(" - data bits = 8");
+		break;
+	}
+
+	/* determine the parity */
+	if (cflag & PARENB)
+		if (cflag & PARODD)
+			pr_debug(" - parity = odd\n");
+		else
+			pr_debug(" - parity = even\n");
+	else
+		pr_debug(" - parity = none\n");
+
+	/* figure out the stop bits requested */
+	if (cflag & CSTOPB)
+		pr_debug(" - stop bits = 2\n");
+	else
+		pr_debug(" - stop bits = 1\n");
+
+	/* figure out the flow control settings */
+	if (cflag & CRTSCTS)
+		pr_debug(" - RTS/CTS is enabled\n");
+	else
+		pr_debug(" - RTS/CTS is disabled\n");
+
+	/* Set baud rate */
+	baud = uart_get_baud_rate(port, new, old, 0, port->uartclk/16);
+	quot = uart_get_divisor(port, baud);
+}
+
+static int xenon_startup(struct uart_port *port)
+{
+	dprintk("Xenon xenon_startup()");
+	/* this is the first time this port is opened */
+	/* do any hardware initialization needed here */
+	return 0;
+}
+
+static void xenon_shutdown(struct uart_port *port)
+{
+	dprintk("Xenon xenon_shutdown()");
+	/* The port is being closed by the last user. */
+	/* Do any hardware specific stuff here */
+}
+
+static const char *xenon_type(struct uart_port *port)
+{
+	return "Xenon SMC";
+}
+
+static void xenon_release_port(struct uart_port *port)
+{
+	dprintk("Xenon xenon_release_port()");
+}
+
+static int xenon_request_port(struct uart_port *port)
+{
+	dprintk("Xenon xenon_request_port()");
+	return 0;
+}
+
+static void xenon_config_port(struct uart_port *port, int flags)
+{
+	dprintk("Xenon xenon_config_port()");
+
+	if (flags & UART_CONFIG_TYPE) {
+		port->type = PORT_XENON;
+	}
+}
+
+static int xenon_verify_port(struct uart_port *port, struct serial_struct *ser)
+{
+	dprintk("Xenon xenon_verify_port()");
+	return 0;
+}
+
+
+#ifdef CONFIG_CONSOLE_POLL
+
+static int xenon_poll_get_char(struct uart_port *port)
+{
+	return xenon_getch(port->membase);
+}
+
+static void xenon_poll_put_char(struct uart_port *port, unsigned char c)
+{
+	xenon_putch(port->membase, c);
+}
+
+#endif
+
+
+static struct uart_ops xenon_ops = {
+	.tx_empty	= xenon_tx_empty,
+	.set_mctrl	= xenon_set_mctrl,
+	.get_mctrl	= xenon_get_mctrl,
+	.stop_tx	= xenon_stop_tx,
+	.start_tx	= xenon_start_tx,
+//	.send_xchar	= xenon_send_xchar,
+	.stop_rx	= xenon_stop_rx,
+	.enable_ms	= xenon_enable_ms,
+	.break_ctl	= xenon_break_ctl,
+	.startup	= xenon_startup,
+	.shutdown	= xenon_shutdown,
+//	.flush_buffer	= xenon_flush_buffer,
+	.set_termios	= xenon_set_termios,
+//	.set_ldisc	= xenon_set_ldisc,
+//	.pm		= xenon_pm,
+//	.set_wake	= xenon_set_wake,
+	.type		= xenon_type,
+	.release_port	= xenon_release_port,
+	.request_port	= xenon_request_port,
+	.config_port	= xenon_config_port,
+	.verify_port	= xenon_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+	.poll_put_char	= xenon_poll_put_char,
+	.poll_get_char	= xenon_poll_get_char,
+#endif
+};
+
+static struct uart_port xenon_port = {
+	.type		= PORT_XENON,
+	.ops		= &xenon_ops,
+	.flags		= UPF_FIXED_TYPE | UPF_IOREMAP,
+	.mapbase	= 0x200ea001010ULL,
+	.iotype         = UPIO_MEM,
+	.uartclk	= 1843200,
+};
+
+static struct console xenon_console;
+
+static struct uart_driver xenon_reg = {
+	.owner  	= THIS_MODULE,
+	.driver_name	= "xenon_uart",
+	.dev_name	= "ttyS",
+	.major  	= TTY_MAJOR,
+	.minor  	= 64,
+	.nr		= 1,
+#ifdef	CONFIG_SERIAL_XENON_CONSOLE
+	.cons		= &xenon_console,
+#endif
+};
+
+
+static int __init xenon_init(void)
+{
+	int result;
+
+	printk(KERN_INFO "Xenon XBOX 360 serial driver\n");
+
+	result = uart_register_driver(&xenon_reg);
+	dprintk("Xenon uart_register_driver() = %d", result);
+	if (result)
+		return result;
+
+	xenon_port.membase = ioremap(xenon_port.mapbase, 0x10);
+
+	result = uart_add_one_port(&xenon_reg, &xenon_port);
+	dprintk("Xenon uart_add_one_port() = %d", result);
+	if (result)
+		uart_unregister_driver(&xenon_reg);
+
+	return result;
+}
+
+static void __exit xenon_exit(void)
+{
+	printk(KERN_INFO "Xenon XBOX 360 serial driver exit\n");
+	uart_remove_one_port(&xenon_reg, &xenon_port);
+	uart_unregister_driver(&xenon_reg);
+}
+
+module_init(xenon_init);
+module_exit(xenon_exit);
+
+
+#ifdef CONFIG_SERIAL_XENON_CONSOLE
+
+static void xenon_console_putchar(struct uart_port *port, int ch)
+{
+	xenon_putch(port->membase, ch);
+}
+
+/*
+ * Print a string to the serial port trying not to disturb
+ * any possible real use of the port...
+ */
+static void xenon_console_write(struct console *cons,
+	const char *s, unsigned int count)
+{
+	uart_console_write(&xenon_port, s, count, xenon_console_putchar);
+}
+
+/*
+ * Setup serial console baud/bits/parity.  We do two things here:
+ * - construct a cflag setting for the first uart_open()
+ * - initialise the serial port
+ * Return non-zero if we didn't find a serial port.
+ */
+static int __init xenon_console_setup(struct console *cons, char *options)
+{
+	int baud = 38400;
+	int bits = 8;
+	int parity = 'n';
+	int flow = 'n';
+#if 0
+	ret = xenon_map_port(uport);
+	if (ret)
+		return ret;
+
+	xenon_reset(port);
+	xenon_pm(port, 0, -1);
+#endif
+
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+	return uart_set_options(&xenon_port, cons, baud, parity, bits, flow);
+}
+
+static struct console xenon_console = {
+	.name	= "ttyS",
+	.write	= xenon_console_write,
+	.device	= uart_console_device,
+	.setup	= xenon_console_setup,
+	.flags	= CON_PRINTBUFFER,
+	.index	= -1,
+	.data	= &xenon_reg,
+};
+
+static int __init xenon_serial_console_init(void)
+{
+	xenon_port.membase = ioremap(xenon_port.mapbase, 0x10);
+
+	register_console(&xenon_console);
+	return 0;
+}
+
+console_initcall(xenon_serial_console_init);
+
+#endif /* CONFIG_SERIAL_XENON_CONSOLE */
+
+
+MODULE_AUTHOR("Herbert Poetzl <herbert@13thfloor.at>");
+MODULE_DESCRIPTION("Xenon XBOX 360 Serial port driver");
+MODULE_LICENSE("GPL v2");
+// MODULE_ALIAS("platform:xenon-uart");
diff -NurpP --minimal linux-5.12/drivers/video/fbdev/Kconfig linux-5.12-xenon/drivers/video/fbdev/Kconfig
--- linux-5.12/drivers/video/fbdev/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/video/fbdev/Kconfig	2021-06-01 21:43:02.567664699 +0200
@@ -657,6 +657,15 @@ config FB_N411
 	  This enables support for the Apollo display controller in its
 	  Hecuba form using the n411 devkit.
 
+config FB_XENOS
+	tristate "Xbox 360 Framebuffer Support"
+	depends on (FB = y) && PPC
+	select FB_CFB_FILLRECT
+	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	help
+	  This is the frame buffer device driver for the Microsoft Xbox 360.
+
 config FB_HGA
 	tristate "Hercules mono graphics support"
 	depends on FB && X86
diff -NurpP --minimal linux-5.12/drivers/video/fbdev/Makefile linux-5.12-xenon/drivers/video/fbdev/Makefile
--- linux-5.12/drivers/video/fbdev/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/drivers/video/fbdev/Makefile	2021-06-01 21:43:02.567664699 +0200
@@ -123,6 +123,7 @@ obj-$(CONFIG_FB_SM712)		  += sm712fb.o
 obj-$(CONFIG_FB_UVESA)            += uvesafb.o
 obj-$(CONFIG_FB_VESA)             += vesafb.o
 obj-$(CONFIG_FB_EFI)              += efifb.o
+obj-$(CONFIG_FB_XENOS)            += xenosfb.o
 obj-$(CONFIG_FB_VGA16)            += vga16fb.o
 obj-$(CONFIG_FB_OF)               += offb.o
 obj-$(CONFIG_FB_MX3)		  += mx3fb.o
diff -NurpP --minimal linux-5.12/drivers/video/fbdev/xenosfb.c linux-5.12-xenon/drivers/video/fbdev/xenosfb.c
--- linux-5.12/drivers/video/fbdev/xenosfb.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/video/fbdev/xenosfb.c	2021-06-01 21:43:02.567664699 +0200
@@ -0,0 +1,431 @@
+/*
+ * framebuffer driver for Microsoft Xbox 360
+ *
+ * (c) 2006 ...
+ * Original vesafb driver written by Gerd Knorr <kraxel@goldbach.in-berlin.de>
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/dmi.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/screen_info.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/types.h>
+
+#include <asm/io.h>
+
+#include <video/vga.h>
+
+/* --------------------------------------------------------------------- */
+
+static struct fb_var_screeninfo xenosfb_defined __initdata = {
+    .activate = FB_ACTIVATE_NOW,
+    .height = -1,
+    .width = -1,
+    .right_margin = 32,
+    .upper_margin = 16,
+    .lower_margin = 4,
+    .vsync_len = 4,
+    .vmode = FB_VMODE_NONINTERLACED,
+};
+
+static struct fb_fix_screeninfo xenosfb_fix __initdata = {
+    .id = "XENON FB",
+    .type = FB_TYPE_PACKED_PIXELS,
+    .accel = FB_ACCEL_NONE,
+    .visual = FB_VISUAL_TRUECOLOR,
+};
+
+// drivers/gpu/drm/radeon/r500_reg.h
+typedef struct ati_info {
+  uint32_t enable;          // 0x00 D1GRPH_ENABLE
+  uint32_t control;         // 0x04 D1GRPH_CONTROL
+  uint32_t lut_sel;         // 0x08 D1GRPH_LUT_SEL
+  uint32_t unk;             // 0x0C D1GRPH_SWAP_CNTL
+  uint32_t base;            // 0x10 D1GRPH_PRIMARY_SURFACE_ADDRESS
+  uint32_t unk_14;          // 0x14 0x6114
+  uint32_t secondary_base;  // 0x18 D1GRPH_SECONDARY_SURFACE_ADDRESS
+  uint32_t unk_1C;          // 0x1C 0x611C
+  uint32_t pitch;           // 0x20 D1GRPH_PITCH
+  uint32_t offset_x;        // 0x24 D1GRPH_SURFACE_OFFSET_X
+  uint32_t offset_y;        // 0x28 D1GRPH_SURFACE_OFFSET_Y
+  uint32_t start_x;         // 0x2C D1GRPH_X_START
+  uint32_t start_y;         // 0x30 D1GRPH_Y_START
+  uint32_t width;           // 0x34 D1GRPH_X_END
+  uint32_t height;          // 0x38 D1GRPH_Y_END
+} ati_info_t;
+
+typedef struct xenosfb_par {
+  uint32_t pseudo_palette[16];
+  uint32_t smem_len;
+
+  void __iomem *graphics_base;
+  ati_info_t __iomem *ati_regs;
+} xenosfb_par_t;
+
+#define DEFAULT_FB_MEM 1024 * 1024 * 16
+
+/* --------------------------------------------------------------------- */
+
+static int xenosfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+                             unsigned blue, unsigned transp,
+                             struct fb_info *info) {
+  /*
+   *  Set a single color register. The values supplied are
+   *  already rounded down to the hardware's capabilities
+   *  (according to the entries in the `var' structure). Return
+   *  != 0 for invalid regno.
+   */
+
+  if (regno >= info->cmap.len) return 1;
+
+  if (regno < 16) {
+    red >>= 8;
+    green >>= 8;
+    blue >>= 8;
+    ((u32 *)(info->pseudo_palette))[regno] = (red << info->var.red.offset) |
+                                             (green << info->var.green.offset) |
+                                             (blue << info->var.blue.offset);
+  }
+  return 0;
+}
+
+#define XENON_XY_TO_STD_PTR(x, y)                              \
+  ((int *)(((char *)p->screen_base) + y * p->fix.line_length + \
+           x * (p->var.bits_per_pixel / 8)))
+#define XENON_XY_TO_XENON_PTR(x, y) xenon_convert(p, XENON_XY_TO_STD_PTR(x, y))
+
+inline void xenon_pset(struct fb_info *p, int x, int y, int color) {
+  fb_writel(color, XENON_XY_TO_XENON_PTR(x, y));
+}
+
+inline int xenon_pget(struct fb_info *p, int x, int y) {
+  return fb_readl(XENON_XY_TO_XENON_PTR(x, y));
+}
+
+void xenon_fillrect(struct fb_info *p, const struct fb_fillrect *rect) {
+  __u32 x, y;
+  for (y = 0; y < rect->height; y++) {
+    for (x = 0; x < rect->width; x++) {
+      xenon_pset(p, rect->dx + x, rect->dy + y, rect->color);
+    }
+  }
+}
+
+void xenon_copyarea(struct fb_info *p, const struct fb_copyarea *area) {
+  /* if the beginning of the target area might overlap with the end of
+  the source area, be have to copy the area reverse. */
+  if ((area->dy == area->sy && area->dx > area->sx) || (area->dy > area->sy)) {
+    __s32 x, y;
+    for (y = area->height - 1; y > 0; y--) {
+      for (x = area->width - 1; x > 0; x--) {
+        xenon_pset(p, area->dx + x, area->dy + y,
+                   xenon_pget(p, area->sx + x, area->sy + y));
+      }
+    }
+  } else {
+    __u32 x, y;
+    for (y = 0; y < area->height; y++) {
+      for (x = 0; x < area->width; x++) {
+        xenon_pset(p, area->dx + x, area->dy + y,
+                   xenon_pget(p, area->sx + x, area->sy + y));
+      }
+    }
+  }
+}
+
+static struct fb_ops xenosfb_ops = {
+    .owner = THIS_MODULE,
+    .fb_setcolreg = xenosfb_setcolreg,
+    .fb_fillrect = xenon_fillrect,
+    .fb_copyarea = xenon_copyarea,
+    .fb_imageblit = cfb_imageblit,
+};
+
+#ifdef CONFIG_PPC_EARLY_DEBUG_XENON
+void udbg_shutdown_xenon(void);
+#endif
+
+static int __init xenosfb_probe(struct platform_device *dev) {
+  struct screen_info screen_info;
+  struct fb_info *info;
+  int err;
+  unsigned int size_vmode;
+  unsigned int size_remap;
+  unsigned int size_total;
+  volatile int *gfx;
+  xenosfb_par_t *par;
+
+  info = framebuffer_alloc(sizeof(xenosfb_par_t), &dev->dev);
+  if (!info) {
+    err = -ENOMEM;
+    return err;
+  }
+  par = info->par;
+  info->pseudo_palette = par->pseudo_palette;
+  par->graphics_base = ioremap(0x200ec800000ULL, 0x10000);
+  par->ati_regs = par->graphics_base + 0x6100;
+  if (!par->graphics_base) {
+    printk(KERN_ERR
+           "xenosfb: abort, cannot ioremap graphics registers "
+           "0x%x @ 0x%llx\n",
+           0x10000, 0x200ec800000ULL);
+    err = -EIO;
+    goto err_release_fb;
+  }
+
+  gfx = par->graphics_base + 0x6000;
+
+  /* setup native resolution, i.e. disable scaling */
+  int vxres = gfx[0x134 / 4];
+  int vyres = gfx[0x138 / 4];
+
+  int black_top = gfx[0x44 / 4];
+  int offset = gfx[0x580 / 4];
+  int offset_x = (offset >> 16) & 0xFFFF;
+  int offset_y = offset & 0xFFFF;
+
+  int nxres, nyres;
+  int scl_h = gfx[0x5b4 / 4], scl_v = gfx[0x5c4 / 4];
+
+  if (gfx[0x590 / 4] == 0) scl_h = scl_v = 0x01000000;
+
+  nxres = (vxres - offset_x * 2) * 0x1000 / (scl_h / 0x1000);
+  nyres = (vyres - offset_y * 2) * 0x1000 / (scl_v / 0x1000) + black_top * 2;
+
+  printk("virtual resolution: %d x %d\n", vxres, vyres);
+  printk("offset: x=%d, y=%d\n", offset_x, offset_y);
+  printk("black: %d %d, %d %d\n", gfx[0x44 / 4], gfx[0x48 / 4], gfx[0x4c / 4],
+         gfx[0x50 / 4]);
+
+  printk("native resolution: %d x %d\n", nxres, nyres);
+
+  screen_info.lfb_depth = 32;
+  screen_info.lfb_size = DEFAULT_FB_MEM / 0x10000;
+  screen_info.pages = 1;
+  screen_info.blue_size = 8;
+  screen_info.blue_pos = 24;
+  screen_info.green_size = 8;
+  screen_info.green_pos = 16;
+  screen_info.red_size = 8;
+  screen_info.red_pos = 8;
+  screen_info.rsvd_size = 8;
+  screen_info.rsvd_pos = 0;
+
+  gfx[0x44 / 4] = 0;  // disable black bar
+  gfx[0x48 / 4] = 0;
+  gfx[0x4c / 4] = 0;
+  gfx[0x50 / 4] = 0;
+
+  gfx[0x590 / 4] = 0;  // disable scaling
+  gfx[0x584 / 4] = (nxres << 16) | nyres;
+  gfx[0x580 / 4] = 0;                       // disable offset
+  gfx[0x5e8 / 4] = (nxres * 4) / 0x10 - 1;  // fix pitch
+  gfx[0x134 / 4] = nxres;
+  gfx[0x138 / 4] = nyres;
+
+  par->ati_regs->base &= ~0xFFFF;  // page-align.
+
+  screen_info.lfb_base = par->ati_regs->base;
+  screen_info.lfb_width = par->ati_regs->width;
+  screen_info.lfb_height = par->ati_regs->height;
+  screen_info.lfb_linelength =
+      screen_info.lfb_width * screen_info.lfb_depth / 4;
+
+  /* fixup pitch, in case we switched resolution */
+  gfx[0x120 / 4] = screen_info.lfb_linelength / 8;
+
+  printk(KERN_INFO "xenosfb: detected %dx%d framebuffer @ 0x%08x\n",
+         screen_info.lfb_width, screen_info.lfb_height, screen_info.lfb_base);
+
+  xenosfb_fix.smem_start = screen_info.lfb_base;
+  xenosfb_defined.bits_per_pixel = screen_info.lfb_depth;
+  xenosfb_defined.xres = screen_info.lfb_width;
+  xenosfb_defined.yres = screen_info.lfb_height;
+  xenosfb_defined.xoffset = 0;
+  xenosfb_defined.yoffset = 0;
+  xenosfb_fix.line_length = screen_info.lfb_linelength;
+
+  /*   size_vmode -- that is the amount of memory needed for the
+   *                 used video mode, i.e. the minimum amount of
+   *                 memory we need. */
+  size_vmode = xenosfb_defined.yres * xenosfb_fix.line_length;
+
+  /*   size_total -- all video memory we have. Used for
+   *                 entries, ressource allocation and bounds
+   *                 checking. */
+  size_total = screen_info.lfb_size * 65536;
+  if (size_total < size_vmode) size_total = size_vmode;
+
+  /*   size_remap -- the amount of video memory we are going to
+   *                 use for xenosfb.  With modern cards it is no
+   *                 option to simply use size_total as that
+   *                 wastes plenty of kernel address space. */
+  size_remap = size_vmode * 2;
+  if (size_remap < size_vmode) size_remap = size_vmode;
+  if (size_remap > size_total) size_remap = size_total;
+  xenosfb_fix.smem_len = size_remap;
+  par->smem_len = size_total;
+
+  if (!request_mem_region(xenosfb_fix.smem_start, size_total, "xenosfb")) {
+    printk(KERN_WARNING "xenosfb: cannot reserve video memory at 0x%lx\n",
+           xenosfb_fix.smem_start);
+    /* We cannot make this fatal. Sometimes this comes from magic
+       spaces our resource handlers simply don't know about */
+  }
+
+  info->screen_base = ioremap(xenosfb_fix.smem_start, xenosfb_fix.smem_len);
+  if (!info->screen_base) {
+    printk(KERN_ERR
+           "xenosfb: abort, cannot ioremap video memory "
+           "0x%x @ 0x%lx\n",
+           xenosfb_fix.smem_len, xenosfb_fix.smem_start);
+    err = -EIO;
+    goto err_unmap_gfx;
+  }
+
+  printk(KERN_INFO
+         "xenosfb: framebuffer at 0x%lx, mapped to 0x%p, "
+         "using %dk, total %dk\n",
+         xenosfb_fix.smem_start, info->screen_base, size_remap / 1024,
+         size_total / 1024);
+  printk(KERN_INFO "xenosfb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
+         xenosfb_defined.xres, xenosfb_defined.yres,
+         xenosfb_defined.bits_per_pixel, xenosfb_fix.line_length,
+         screen_info.pages);
+
+  xenosfb_defined.xres_virtual = xenosfb_defined.xres;
+  xenosfb_defined.yres_virtual = xenosfb_fix.smem_len / xenosfb_fix.line_length;
+  printk(KERN_INFO "xenosfb: scrolling: redraw\n");
+  xenosfb_defined.yres_virtual = xenosfb_defined.yres;
+
+  /* some dummy values for timing to make fbset happy */
+  xenosfb_defined.pixclock =
+      10000000 / xenosfb_defined.xres * 1000 / xenosfb_defined.yres;
+  xenosfb_defined.left_margin = (xenosfb_defined.xres / 8) & 0xf8;
+  xenosfb_defined.hsync_len = (xenosfb_defined.xres / 8) & 0xf8;
+
+  printk(KERN_INFO "xenosfb: pixclk=%ld left=%02x hsync=%02x\n",
+         (unsigned long)xenosfb_defined.pixclock, xenosfb_defined.left_margin,
+         xenosfb_defined.hsync_len);
+
+  xenosfb_defined.red.offset = screen_info.red_pos;
+  xenosfb_defined.red.length = screen_info.red_size;
+  xenosfb_defined.green.offset = screen_info.green_pos;
+  xenosfb_defined.green.length = screen_info.green_size;
+  xenosfb_defined.blue.offset = screen_info.blue_pos;
+  xenosfb_defined.blue.length = screen_info.blue_size;
+  xenosfb_defined.transp.offset = screen_info.rsvd_pos;
+  xenosfb_defined.transp.length = screen_info.rsvd_size;
+
+  printk(KERN_INFO
+         "xenosfb: %s: "
+         "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
+         "Truecolor", screen_info.rsvd_size, screen_info.red_size,
+         screen_info.green_size, screen_info.blue_size, screen_info.rsvd_pos,
+         screen_info.red_pos, screen_info.green_pos, screen_info.blue_pos);
+
+  xenosfb_fix.ypanstep = 0;
+  xenosfb_fix.ywrapstep = 0;
+
+  /* request failure does not faze us, as vgacon probably has this
+   * region already (FIXME) */
+  request_region(0x3c0, 32, "xenosfb");
+
+  info->fbops = &xenosfb_ops;
+  info->var = xenosfb_defined;
+  info->fix = xenosfb_fix;
+  info->flags = FBINFO_FLAG_DEFAULT;
+
+  if (fb_alloc_cmap(&info->cmap, 256, 0) < 0) {
+    err = -ENOMEM;
+    goto err_unmap;
+  }
+  if (register_framebuffer(info) < 0) {
+    err = -EINVAL;
+    goto err_fb_dealoc;
+  }
+
+  par->ati_regs->enable = 1;
+
+// Shut down the early framebuffer driver (if enabled).
+#ifdef CONFIG_PPC_EARLY_DEBUG_XENON
+	udbg_shutdown_xenon();
+#endif
+
+	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
+	       info->fix.id);
+	return 0;
+
+err_fb_dealoc:
+  fb_dealloc_cmap(&info->cmap);
+err_unmap:
+  iounmap(info->screen_base);
+  release_mem_region(xenosfb_fix.smem_start, size_total);
+err_unmap_gfx:
+  iounmap(par->graphics_base);
+err_release_fb:
+  framebuffer_release(info);
+  return err;
+}
+
+static int __exit xenosfb_remove(struct platform_device *dev) {
+  struct fb_info *info = platform_get_drvdata(dev);
+
+  if (info) {
+    xenosfb_par_t *par = info->par;
+    par->ati_regs->enable = 0;
+
+    unregister_framebuffer(info);
+    fb_dealloc_cmap(&info->cmap);
+    iounmap(info->screen_base);
+    release_mem_region(xenosfb_fix.smem_start, par->smem_len);
+    framebuffer_release(info);
+  }
+
+  return 0;
+}
+
+static struct platform_driver xenosfb_driver = {
+    .probe = xenosfb_probe,
+    .remove = xenosfb_remove,
+    .driver =
+        {
+            .name = "xenosfb",
+        },
+};
+
+static struct platform_device xenosfb_device = {
+    .name = "xenosfb",
+};
+
+static int __init xenosfb_init(void) {
+  int ret;
+
+  ret = platform_driver_register(&xenosfb_driver);
+
+  if (!ret) {
+    ret = platform_device_register(&xenosfb_device);
+    if (ret) platform_driver_unregister(&xenosfb_driver);
+  }
+  return ret;
+}
+
+static void __exit xenosfb_exit(void) {
+  platform_device_unregister(&xenosfb_device);
+  platform_driver_unregister(&xenosfb_driver);
+}
+
+module_init(xenosfb_init);
+module_exit(xenosfb_exit);
+MODULE_LICENSE("GPL");
diff -NurpP --minimal linux-5.12/drivers/xenon/Makefile linux-5.12-xenon/drivers/xenon/Makefile
--- linux-5.12/drivers/xenon/Makefile	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/xenon/Makefile	2021-06-01 21:43:02.567664699 +0200
@@ -0,0 +1 @@
+obj-$(CONFIG_PPC_XENON) += smc-core.o
diff -NurpP --minimal linux-5.12/drivers/xenon/smc-core.c linux-5.12-xenon/drivers/xenon/smc-core.c
--- linux-5.12/drivers/xenon/smc-core.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/drivers/xenon/smc-core.c	2021-06-01 21:43:02.567664699 +0200
@@ -0,0 +1,339 @@
+/*
+ *  Xenon SMC core.
+ *
+ *  Copyright (C) 2010 Herbert Poetzl
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+
+#define DRV_NAME	"xenon_smc_core"
+#define DRV_VERSION	"0.1"
+
+struct xenon_smc
+{
+	void __iomem *base;
+	wait_queue_head_t wait_q;
+	spinlock_t fifo_lock;
+
+	void (*send)(void *msg);
+	void (*wait)(void *msg);
+	int (*reply)(void *msg);
+	int (*cached)(void *msg);
+
+	unsigned char cmd;
+};
+
+static struct xenon_smc smc;
+
+static unsigned char smc_reply[][16] = {
+	{ 0x01 },	/* power on type */
+	{ 0x04 },	/* rtc */
+	{ 0x07 },	/* temp */
+	{ 0x0a },	/* tray state */
+	{ 0x0f },	/* av pack */
+	{ 0x11 },	/* (h)ana */
+	{ 0x12 },	/* smc version */
+	{ 0x13 },	/* echo back */
+	{ 0x16 },	/* IR address */
+	{ 0x17 },	/* tilt state */
+	{ 0x1e },	/* 12b @83h */
+	{ 0x20 },	/* 12b @8fh */
+	{ 0x83 },	/* smc event */
+};
+
+
+static void _xenon_smc_send(void *msg)
+{
+	unsigned long flags;
+
+	print_hex_dump(KERN_DEBUG, "_xenon_smc_send: ",
+		DUMP_PREFIX_NONE, 16, 2, msg, 16, 0);
+
+	spin_lock_irqsave(&smc.fifo_lock, flags);
+	while (!(readl(smc.base + 0x84) & 4))
+		cpu_relax();
+
+	writel(4, smc.base + 0x84);
+	writesl(smc.base + 0x80, msg, 4);
+	writel(0, smc.base + 0x84);
+	spin_unlock_irqrestore(&smc.fifo_lock, flags);
+}
+
+static void _xenon_smc_wait(void *msg)
+{
+	/* do we expect a reply? */
+	if (*(unsigned char *)msg & 0x80)
+		return;
+
+#if 0
+	/* wait for reply, maybe a timeout? */
+	while (!(readl(smc.base + 0x94) & 4))
+		cpu_relax();
+#else
+	wait_event_interruptible(smc.wait_q,
+		smc.cmd == *(unsigned char *)msg);
+#endif
+}
+
+
+static int _xenon_smc_reply(void *msg)
+{
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&smc.fifo_lock, flags);
+	if (readl(smc.base + 0x94) & 4) {
+		writel(4, smc.base + 0x94);
+		readsl(smc.base + 0x90, msg, 4);
+		writel(0, smc.base + 0x94);
+		ret = 1;
+	} else {
+		memset(msg, 0, 16);
+	}
+	spin_unlock_irqrestore(&smc.fifo_lock, flags);
+	return ret;
+}
+
+static unsigned char * _xenon_smc_cache_lookup(unsigned char *msg) {
+	unsigned char *ptr = smc_reply[0];
+
+	while (ptr[0]) {
+		if (msg[0] == ptr[0])
+			return ptr;
+		ptr += 16;
+	}
+	return NULL;
+}
+
+static int _xenon_smc_cached_reply(void *msg)
+{
+	unsigned char *ptr = _xenon_smc_cache_lookup(msg);
+
+	if (ptr)
+		memcpy(msg + 1, ptr + 1, 15);
+	return (ptr != NULL);
+}
+
+
+static void _xenon_smc_cache(unsigned char *msg) {
+	unsigned char *ptr = _xenon_smc_cache_lookup(msg);
+
+	if (ptr)
+		memcpy(ptr + 1, msg + 1, 15);
+	else
+		printk("unknown smc reply %02x", msg[0]);
+
+	print_hex_dump(KERN_DEBUG, "_xenon_smc_cache: ",
+		DUMP_PREFIX_NONE, 16, 2, msg, 16, 0);
+	smc.cmd = msg[0];
+}
+
+
+int	xenon_smc_message(void *msg)
+{
+	int ret = 0;
+
+	if (smc.send)
+		smc.send(msg);
+
+	return ret;
+}
+
+EXPORT_SYMBOL_GPL(xenon_smc_message);
+
+int	xenon_smc_message_wait(void *msg)
+{
+	int ret = 0;
+
+	smc.cmd = 0;
+	if (smc.send)
+		smc.send(msg);
+	if (smc.wait)
+		smc.wait(msg);
+#if 0
+	if (smc.reply)
+		ret = smc.reply(msg);
+#else
+	if (smc.cached)
+		ret = smc.cached(msg);
+#endif
+	return ret;
+}
+
+EXPORT_SYMBOL_GPL(xenon_smc_message_wait);
+
+
+static void show_logo(void)
+{
+	// 0x99 = LED_CONTROL
+	// 0x01 = SET
+	// [green] [red]
+	// bit position is light
+	// 8 = br, 4 = bl, 2 = tr, 1 = tl
+	unsigned char msg[16] = {0x99, 0x01, 0x78, 0};
+
+	xenon_smc_message(msg);
+}
+
+void xenon_smc_restart(void)
+{
+	unsigned char msg[16] = {0x82, 0x04, 0x30, 0};
+
+	xenon_smc_message(msg);
+}
+
+void xenon_smc_power_off(void)
+{
+	unsigned char msg[16] = {0x82, 0x01, 0x00, 0};
+
+	xenon_smc_message(msg);
+}
+
+void xenon_smc_halt(void)
+{
+	return;
+}
+
+static const struct pci_device_id xenon_smc_pci_tbl[] = {
+	{ PCI_VDEVICE(MICROSOFT, 0x580d), 0 },
+	{ }	/* terminate list */
+};
+
+static irqreturn_t xenon_smc_irq(int irq, void *dev_id)
+{
+	static unsigned char msg[16];
+	// struct pci_dev *pdev = dev_id;
+
+	// on power press:
+	// xenon_smc_irq() = 10000000,00000004
+	// _xenon_smc_cache: 8311 0100 0000 0000 0000 0000 0000 0000
+
+	unsigned int irqs = readl(smc.base + 0x50);
+
+	printk(KERN_DEBUG "xenon_smc_irq() = %08x,%08x\n",
+		irqs, readl(smc.base + 0x94));
+
+	if (irqs & 0x10000000) {
+		if (_xenon_smc_reply(msg)) {
+			_xenon_smc_cache(msg);
+			wake_up(&smc.wait_q);
+		}
+	}
+
+	writel(irqs, smc.base + 0x58);	// ack irq
+	return IRQ_NONE;
+}
+
+static int xenon_smc_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	// static int printed_version;
+	int rc;
+	int pci_dev_busy = 0;
+	unsigned long mmio_start;
+
+	dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
+
+	rc = pci_enable_device(pdev);
+	if (rc)
+		return rc;
+
+	rc = pci_request_regions(pdev, DRV_NAME);
+	if (rc) {
+		pci_dev_busy = 1;
+		goto err_out;
+	}
+
+	pci_intx(pdev, 1);
+
+	printk(KERN_INFO "attached to xenon SMC\n");
+
+	mmio_start = pci_resource_start(pdev, 0);
+	smc.base = ioremap(mmio_start, 0x100);
+	if (!smc.base)
+		goto err_out_regions;
+
+	init_waitqueue_head(&smc.wait_q);
+	spin_lock_init(&smc.fifo_lock);
+
+	if (request_irq(pdev->irq, xenon_smc_irq, IRQF_SHARED,
+		"xenon-smc", pdev)) {
+		printk(KERN_ERR "xenon-smc: request_irq failed\n");
+		goto err_out_ioremap;
+	}
+
+	smc.send = _xenon_smc_send;
+	smc.wait = _xenon_smc_wait;
+	smc.reply = _xenon_smc_reply;
+	smc.cached = _xenon_smc_cached_reply;
+
+	show_logo();
+	return 0;
+
+err_out_ioremap:
+	iounmap(smc.base);
+
+err_out_regions:
+	pci_release_regions(pdev);
+
+err_out:
+	if (!pci_dev_busy)
+		pci_disable_device(pdev);
+	return rc;
+}
+
+static void xenon_smc_remove(struct pci_dev *pdev)
+{
+	smc.send = NULL;
+	smc.reply = NULL;
+
+	iounmap(smc.base);
+
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+}
+
+static struct pci_driver xenon_smc_pci_driver = {
+	.name			= DRV_NAME,
+	.id_table		= xenon_smc_pci_tbl,
+	.probe			= xenon_smc_init_one,
+	.remove			= xenon_smc_remove
+};
+
+
+static int __init xenon_smc_init(void)
+{
+	return pci_register_driver(&xenon_smc_pci_driver);
+}
+
+static void __exit xenon_smc_exit(void)
+{
+	pci_unregister_driver(&xenon_smc_pci_driver);
+}
+
+module_init(xenon_smc_init);
+module_exit(xenon_smc_exit);
+
+
+MODULE_DESCRIPTION("Driver for Xenon Southbridge SMC");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+MODULE_DEVICE_TABLE(pci, xenon_smc_pci_tbl);
+
diff -NurpP --minimal linux-5.12/include/linux/fb.h linux-5.12-xenon/include/linux/fb.h
--- linux-5.12/include/linux/fb.h	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/include/linux/fb.h	2021-06-01 21:43:02.567664699 +0200
@@ -685,6 +685,18 @@ static inline bool fb_be_math(struct fb_
 #endif /* CONFIG_FB_FOREIGN_ENDIAN */
 }
 
+static inline int *xenon_convert(struct fb_info *p, int *addr)
+{
+	int index = ((char*)addr) - ((char*)p->screen_base);
+	int y = index / (p->fix.line_length);
+	int x = index % (p->fix.line_length)/4;
+	unsigned int base = ((((y & ~31)*p->var.xres) + (x & ~31)*32 ) +
+	 (((x&3) + ((y&1)<<2) + ((x&28)<<1) + ((y&30)<<5)) ^ ((y&8)<<2))) * 4;
+
+	return (int*)(((char*)p->screen_base)+base);
+}
+
+
 /* drivers/video/fbsysfs.c */
 extern struct fb_info *framebuffer_alloc(size_t size, struct device *dev);
 extern void framebuffer_release(struct fb_info *info);
diff -NurpP --minimal linux-5.12/include/linux/pci_ids.h linux-5.12-xenon/include/linux/pci_ids.h
--- linux-5.12/include/linux/pci_ids.h	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/include/linux/pci_ids.h	2021-06-01 21:43:02.567664699 +0200
@@ -2349,6 +2349,8 @@
 #define PCI_DEVICE_ID_ADDIDATA_APCIe7500       0x7012
 #define PCI_DEVICE_ID_ADDIDATA_APCIe7800       0x7013
 
+#define PCI_VENDOR_ID_MICROSOFT		0x1414
+
 #define PCI_VENDOR_ID_PDC		0x15e9
 
 #define PCI_VENDOR_ID_FARSITE           0x1619
diff -NurpP --minimal linux-5.12/include/uapi/linux/serial_core.h linux-5.12-xenon/include/uapi/linux/serial_core.h
--- linux-5.12/include/uapi/linux/serial_core.h	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/include/uapi/linux/serial_core.h	2021-06-01 21:43:02.571664765 +0200
@@ -208,6 +208,9 @@
 /* Atheros AR933X SoC */
 #define PORT_AR933X	99
 
+/* Xenon XBOX 360 Southbridge */
+#define PORT_XENON     91
+
 /* ARC (Synopsys) on-chip UART */
 #define PORT_ARC       101
 
diff -NurpP --minimal linux-5.12/lib/Kconfig.debug linux-5.12-xenon/lib/Kconfig.debug
--- linux-5.12/lib/Kconfig.debug	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/lib/Kconfig.debug	2021-06-01 21:43:02.571664765 +0200
@@ -78,7 +78,7 @@ config MESSAGE_LOGLEVEL_DEFAULT
 
 config BOOT_PRINTK_DELAY
 	bool "Delay each boot printk message by N milliseconds"
-	depends on DEBUG_KERNEL && PRINTK && GENERIC_CALIBRATE_DELAY
+	depends on DEBUG_KERNEL && PRINTK
 	help
 	  This build option allows you to read kernel boot messages
 	  by inserting a short delay after each one.  The delay is
diff -NurpP --minimal linux-5.12/sound/pci/Kconfig linux-5.12-xenon/sound/pci/Kconfig
--- linux-5.12/sound/pci/Kconfig	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/sound/pci/Kconfig	2021-06-01 21:44:50.377481452 +0200
@@ -908,6 +908,15 @@ config SND_YMFPCI
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-ymfpci.
 
+config SND_XENON
+	tristate "Xenon XBOX 360 Sound"
+	select SND_PCM
+	help
+	  Say Y here to include support for the Xenon XBOX 360 soundcard.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-xenon.
+
 endif	# SND_PCI
 
 source "sound/pci/hda/Kconfig"
diff -NurpP --minimal linux-5.12/sound/pci/Makefile linux-5.12-xenon/sound/pci/Makefile
--- linux-5.12/sound/pci/Makefile	2021-04-25 22:49:08.000000000 +0200
+++ linux-5.12-xenon/sound/pci/Makefile	2021-06-01 21:44:50.377481452 +0200
@@ -54,6 +54,7 @@ obj-$(CONFIG_SND_SIS7019) += snd-sis7019
 obj-$(CONFIG_SND_SONICVIBES) += snd-sonicvibes.o
 obj-$(CONFIG_SND_VIA82XX) += snd-via82xx.o
 obj-$(CONFIG_SND_VIA82XX_MODEM) += snd-via82xx-modem.o
+obj-$(CONFIG_SND_XENON) += snd-xenon.o
 
 obj-$(CONFIG_SND) += \
 	ac97/ \
diff -NurpP --minimal linux-5.12/sound/pci/snd-xenon.c linux-5.12-xenon/sound/pci/snd-xenon.c
--- linux-5.12/sound/pci/snd-xenon.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-5.12-xenon/sound/pci/snd-xenon.c	2021-06-01 21:44:50.377481452 +0200
@@ -0,0 +1,687 @@
+/*
+ *  xenon_snd.c - driver for XBOX 360 soundcard.
+ *  Copyright (C) 2009 by jc4360@gmail.com
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+// #include <sound/driver.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+
+#include <asm/io.h>
+
+#include <sound/core.h>
+#include <sound/control.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/pcm-indirect.h>
+#include <sound/asoundef.h>
+
+#define DESCRIPTOR_BUFFER_SIZE (32 * sizeof(u32) * 2)
+#define CACHELINE_SIZE 128
+
+#define IRQ_DISABLE             0
+#define IRQ_ENABLE              1
+
+static struct pci_device_id snd_xenon_ids[] = {
+	{ 0x1414, 0x580c, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, snd_xenon_ids);
+
+static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX;
+static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
+static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
+
+
+struct playback_device {
+	struct snd_pcm_substream *playback_substream;
+
+	int state;
+	void *dma_base_virt;
+	dma_addr_t descr_base_phys;
+	u32 *descr_base_virt;
+
+	int buffer_bytes;
+	int period_bytes;
+	int descr_bytes;
+	int gap;
+	int wptr;
+};
+
+struct snd_xenon {
+	unsigned long iobase_phys;
+	void *iobase_virt;
+
+	spinlock_t lock;
+	struct snd_card *card;
+	struct pci_dev *pci;
+
+	int irq;
+
+	dma_addr_t descr_base_phys;
+	void *descr_base_virt;
+
+	struct snd_pcm *pcm[2];
+	struct playback_device devices[2];
+
+	unsigned int dig_status;
+	unsigned int dig_pcm_status;
+
+	struct timer_list timer;
+	int timer_in_use;
+};
+
+static void cache_flush(void *addr, int size)
+{
+    void *p = addr;
+    while (size) {
+	__asm__ __volatile__ ("dcbst 0,%0" :: "r" (p));
+	p += 128;
+	size -= 128;
+    }
+    __asm__ __volatile__ ("sync" ::: "memory");
+}
+
+static inline u32 bswap32(u32 t)
+{
+	return ((t & 0xFF) << 24) | ((t & 0xFF00) << 8) | ((t & 0xFF0000) >> 8) | ((t & 0xFF000000) >> 24);
+}
+
+void xenon_smc_send_message(unsigned char *msg)
+{
+
+	void *base = ioremap(0x200ea001000, 0x1000);
+
+	while (!(readl(base + 0x84) & 4));
+	writel(4, base + 0x84);
+	writel(bswap32(*(u32 *)(msg + 0)), base + 0x80);
+	writel(bswap32(*(u32 *)(msg + 4)), base + 0x80);
+	writel(bswap32(*(u32 *)(msg + 8)), base + 0x80);
+	writel(bswap32(*(u32 *)(msg + 12)), base + 0x80);
+	writel(0, base + 0x84);
+	iounmap(base);
+}
+
+static inline void snd_xenon_set_irq_flag(struct snd_xenon *chip, int cmd)
+{
+	// enable/disable irq
+	return;
+}
+
+static irqreturn_t snd_xenon_interrupt(int irq, void *dev_id)
+{
+	printk("xenon_snd: give me an interrupt, please!\n");
+	return IRQ_HANDLED;
+}
+
+static void snd_xenon_timer_fn(unsigned long data)
+{
+	struct snd_xenon *chip = (struct snd_xenon *)data;
+	u32 reg;
+	int rptr_descr, wptr_descr, cur_len, size;
+
+	struct playback_device *device = NULL;
+	int dev_id = 0;
+
+	for (dev_id = 0; dev_id < 2; dev_id++) {
+
+		device = &chip->devices[dev_id];
+
+		spin_lock(&chip->lock);
+
+		if (device->state != 3) {
+			spin_unlock(&chip->lock);
+			continue;
+		}
+
+		reg = readl(chip->iobase_virt + 0x04 + dev_id * 0x10);
+		rptr_descr = reg & 0x1f;
+		wptr_descr = (reg & 0x1f00) >> 8;
+		cur_len = (reg >> 16) & 0xFFFF;
+
+		size = wptr_descr - rptr_descr;
+		if (size < 0) size += 32;
+		size *= device->descr_bytes;
+		size += cur_len;
+		if (wptr_descr < rptr_descr) size -= device->gap;
+		size = device->buffer_bytes - size;
+
+		if (size >= device->period_bytes) {
+			spin_unlock(&chip->lock);
+			snd_pcm_period_elapsed(device->playback_substream);
+		} else
+			spin_unlock(&chip->lock);
+	}
+
+	if (chip->timer_in_use) {
+		mod_timer(&chip->timer, jiffies + usecs_to_jiffies(200));
+	}
+
+}
+
+static struct snd_pcm_hardware snd_xenon_ana_playback_hw =
+{
+	.info =			(SNDRV_PCM_INFO_MMAP |
+				SNDRV_PCM_INFO_INTERLEAVED |
+				SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =              SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =                SNDRV_PCM_RATE_48000,
+	.rate_min =		48000,
+	.rate_max =		48000,
+	.channels_min =		2,
+	.channels_max =		2,
+	.buffer_bytes_max =	64 * 1024,
+	.period_bytes_min =	64,
+	.period_bytes_max =	64 * 1024,
+	.periods_min =		1,
+	.periods_max =		1024,
+	.fifo_size =            0,
+};
+
+static struct snd_pcm_hardware snd_xenon_spdif_playback_hw =
+{
+	.info =                 (SNDRV_PCM_INFO_MMAP |
+				SNDRV_PCM_INFO_INTERLEAVED |
+				SNDRV_PCM_INFO_BLOCK_TRANSFER |
+				SNDRV_PCM_INFO_MMAP_VALID),
+	.formats =              SNDRV_PCM_FMTBIT_S16_LE,
+	.rates =                SNDRV_PCM_RATE_48000,
+	.rate_min =             48000,
+	.rate_max =             48000,
+	.channels_min =         2,
+	.channels_max =         2,
+	.buffer_bytes_max =     64 * 1024,
+	.period_bytes_min =     64,
+	.period_bytes_max =     64 * 1024,
+	.periods_min =          1,
+	.periods_max =          1024,
+	.fifo_size =            0,
+};
+
+static int snd_xenon_playback_open(struct snd_pcm_substream *substream, int dev_id, struct snd_pcm_hardware *playback_hw)
+{
+	struct snd_xenon *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct playback_device *device = &chip->devices[dev_id];
+
+	runtime->hw = *playback_hw;
+
+	spin_lock_irq(&chip->lock);
+
+	memset(device, 0, sizeof(struct playback_device));
+	device->playback_substream = substream;
+
+	writel(0x2000000, chip->iobase_virt + 0x08 + dev_id * 0x10);
+	device->descr_base_phys =
+		chip->descr_base_phys +  dev_id * 0x100;
+	device->descr_base_virt =
+		(u32 *)(chip->descr_base_virt + dev_id * 0x100);
+	device->state = 1;
+
+	spin_unlock_irq(&chip->lock);
+
+	return 0;
+}
+
+static int snd_xenon_ana_playback_open(struct snd_pcm_substream *substream)
+{
+	return snd_xenon_playback_open(substream, 0, &snd_xenon_ana_playback_hw);
+}
+
+static int snd_xenon_spdif_playback_open(struct snd_pcm_substream *substream)
+{
+	return snd_xenon_playback_open(substream, 1, &snd_xenon_spdif_playback_hw);
+}
+static int snd_xenon_playback_close(struct snd_pcm_substream *substream)
+{
+	struct snd_xenon *chip = snd_pcm_substream_chip(substream);
+	struct playback_device *device = &chip->devices[0];
+
+	if (device->playback_substream != substream)
+		device = &chip->devices[1];
+
+	spin_lock_irq(&chip->lock);
+	device->state = 0;
+	spin_unlock_irq(&chip->lock);
+
+	if (device->dma_base_virt != NULL)
+	   iounmap(device->dma_base_virt);
+
+	device->playback_substream = NULL;
+	snd_pcm_lib_free_pages(substream);
+
+	return 0;
+}
+
+static int snd_xenon_pcm_hw_params(struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *hw_params)
+{
+	int bytes = params_buffer_bytes(hw_params);
+	return snd_pcm_lib_malloc_pages(substream, bytes);
+}
+
+static int snd_xenon_pcm_hw_free(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static int snd_xenon_playback_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_xenon *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct playback_device *device = &chip->devices[0];
+	int i , dev_id = 0;
+
+	if (device->playback_substream != substream) {
+		dev_id = 1;
+		device = &chip->devices[1];
+	}
+
+	spin_lock_irq(&chip->lock);
+
+	device->dma_base_virt =
+		ioremap(runtime->dma_addr, runtime->dma_bytes);
+
+	memset(device->dma_base_virt, 0, runtime->dma_bytes);
+	cache_flush(device->dma_base_virt, runtime->dma_bytes);
+
+	device->state = 2;
+	device->period_bytes = snd_pcm_lib_period_bytes(substream);
+	device->buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
+	device->descr_bytes = (device->buffer_bytes + 31 ) / 32;
+	device->gap = (device->descr_bytes << 5) -
+			    device->buffer_bytes;
+	device->wptr = -1;
+
+
+	for (i=0; i < 32; i++) {
+		device->descr_base_virt[i*2] =
+			bswap32(runtime->dma_addr + device->descr_bytes * i);
+		device->descr_base_virt[i*2 + 1] =
+			bswap32(0x80000000 | (device->descr_bytes - 1));
+	}
+	device->descr_base_virt[31*2 + 1] =
+		bswap32(0x80000000 | (device->descr_bytes - 1 - device->gap));
+	cache_flush(device->descr_base_virt, DESCRIPTOR_BUFFER_SIZE);
+
+	writel(device->descr_base_phys, chip->iobase_virt + 0x00 + dev_id * 0x10);
+	writel(0x1c08001c, chip->iobase_virt + 0x08 + dev_id * 0x10);
+	writel((dev_id==0)?0x1c:0x02009902, chip->iobase_virt + 0x0c + dev_id * 0x10);
+
+	spin_unlock_irq(&chip->lock);
+	return 0;
+}
+
+static int snd_xenon_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_xenon *chip = snd_pcm_substream_chip(substream);
+	struct playback_device *device = &chip->devices[0];
+	int dev_id = 0, ret = 0;
+	u32 reg;
+
+	if (device->playback_substream != substream) {
+		dev_id = 1;
+		device = &chip->devices[1];
+	}
+
+	spin_lock(&chip->lock);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		device->state = 3;
+
+		reg = readl(chip->iobase_virt + 0x08 + dev_id * 0x10);
+		writel(reg | 0x1000000, chip->iobase_virt + 0x08 + dev_id * 0x10);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+		device->state = 4;
+		reg = readl(chip->iobase_virt + 0x08 + dev_id * 0x10);
+		writel(reg & ~0x1000000, chip->iobase_virt + 0x08 + dev_id * 0x10);
+		break;
+
+	default:
+		ret = -EINVAL;
+	}
+	spin_unlock(&chip->lock);
+
+	return ret;
+}
+
+static snd_pcm_uframes_t snd_xenon_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_xenon *chip = snd_pcm_substream_chip(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct playback_device *device = &chip->devices[0];
+
+	int dev_id = 0;
+	int app_ptr, app_descr, bytes;
+	u32 reg;
+
+	if (device->playback_substream != substream) {
+		dev_id = 1;
+		device = &chip->devices[1];
+	}
+
+	spin_lock(&chip->lock);
+
+	app_ptr = frames_to_bytes(runtime, runtime->control->appl_ptr) %
+		      device->buffer_bytes;
+
+	if (app_ptr != device->wptr)
+		cache_flush(device->dma_base_virt, runtime->dma_bytes);
+
+	app_descr = app_ptr / device->descr_bytes;
+	reg = readl(chip->iobase_virt + 0x04 + dev_id * 0x10);
+	if (app_descr == (( reg & 0x1f00) >> 8))
+	    app_descr -= 1;
+	if (app_descr < 0) app_descr += 32;
+
+	device->wptr = app_ptr;
+
+	writel(app_descr << 8, chip->iobase_virt + 0x04 + dev_id * 0x10);
+
+	spin_unlock(&chip->lock);
+
+	bytes = (reg & 0x1f) * (device->descr_bytes);
+	return bytes_to_frames(substream->runtime, bytes);
+}
+
+static struct snd_pcm_ops snd_xenon_ana_playback_ops = {
+	.open =		snd_xenon_ana_playback_open,
+	.close =	snd_xenon_playback_close,
+	.ioctl =	snd_pcm_lib_ioctl,
+	.hw_params =	snd_xenon_pcm_hw_params,
+	.hw_free =	snd_xenon_pcm_hw_free,
+	.prepare =	snd_xenon_playback_prepare,
+	.trigger =	snd_xenon_trigger,
+	.pointer =	snd_xenon_pointer,
+};
+
+static struct snd_pcm_ops snd_xenon_spdif_playback_ops = {
+	.open =         snd_xenon_spdif_playback_open,
+	.close =        snd_xenon_playback_close,
+	.ioctl =        snd_pcm_lib_ioctl,
+	.hw_params =    snd_xenon_pcm_hw_params,
+	.hw_free =      snd_xenon_pcm_hw_free,
+	.prepare =      snd_xenon_playback_prepare,
+	.trigger =      snd_xenon_trigger,
+	.pointer =      snd_xenon_pointer,
+};
+
+static int snd_xenon_new_pcm(struct snd_xenon *chip)
+{
+	struct snd_pcm *pcm;
+	int err;
+
+	err = snd_pcm_new(chip->card, "Xenon Audio", 0, 1, 0, &pcm);
+	if (err < 0)
+		return err;
+	pcm->private_data = chip;
+	strcpy(pcm->name, "Analog");
+	chip->pcm[0] = pcm;
+
+	/* set operators */
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+				&snd_xenon_ana_playback_ops);
+
+	/* pre-allocation of buffers */
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+	snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
+
+	err = snd_pcm_new(chip->card, "Xenon Audio", 1, 1, 0, &pcm);
+	if (err < 0)
+		return err;
+	pcm->private_data = chip;
+	strcpy(pcm->name, "Digital");
+	chip->pcm[1] = pcm;
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
+				&snd_xenon_spdif_playback_ops);
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+	snd_dma_pci_data(chip->pci), 64*1024, 64*1024);
+
+	return 0;
+}
+
+static void snd_xenon_init(struct snd_xenon *chip)
+{
+	unsigned long flags;
+	static unsigned char smc_snd[32] = {0x8d, 1, 1};
+	xenon_smc_send_message(smc_snd);
+
+	spin_lock_irqsave(&chip->lock, flags);
+
+	chip->descr_base_virt = pci_alloc_consistent(chip->pci,
+			 DESCRIPTOR_BUFFER_SIZE * 2, &chip->descr_base_phys);
+	chip->descr_base_phys &= 0x1fffffff;
+	printk("snd_xenon: descr_base_virt=0x%llx, descr_base_phys=0x%llx\n",
+		(unsigned long long)chip->descr_base_virt,
+		(unsigned long long)chip->descr_base_phys);
+
+	writel(0, chip->iobase_virt + 0x08);
+	writel(0x2000000, chip->iobase_virt + 0x08);
+	writel(chip->descr_base_phys, chip->iobase_virt + 0x00);
+
+	writel(0, chip->iobase_virt + 0x18);
+	writel(0x2000000, chip->iobase_virt + 0x18);
+	writel(chip->descr_base_phys + DESCRIPTOR_BUFFER_SIZE,
+		chip->iobase_virt + 0x10);
+
+	/* Enable IRQ output */
+	snd_xenon_set_irq_flag(chip, IRQ_ENABLE);
+
+	spin_unlock_irqrestore(&chip->lock, flags);
+}
+
+static int snd_xenon_dev_free(struct snd_device *device);
+static int snd_xenon_free(struct snd_xenon *chip);
+
+static int snd_xenon_create(struct snd_card *card,
+				       struct pci_dev *pci,
+				       struct snd_xenon **rchip)
+{
+	struct snd_xenon *chip;
+	int err;
+
+	static struct snd_device_ops ops = {
+		.dev_free = snd_xenon_dev_free,
+	};
+	*rchip = NULL;
+
+	if ((err = pci_enable_device(pci)) < 0)
+		return err;
+
+	pci_set_master(pci);
+
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+	if (chip == NULL) {
+		pci_disable_device(pci);
+		return -ENOMEM;
+	}
+
+	chip->card = card;
+	chip->pci = pci;
+	chip->irq = -1;
+	chip->dig_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
+	chip->dig_pcm_status = SNDRV_PCM_DEFAULT_CON_SPDIF;
+	spin_lock_init(&chip->lock);
+
+	if (!( pci_resource_flags (pci, 0) & IORESOURCE_MEM)) {
+		dev_err(&pci->dev,
+			"region #0 not an MMIO resource, aborting\n");
+		return -ENODEV;
+	}
+
+	if ((err = pci_request_regions(pci, "Xenon AudioPCI")) < 0) {
+		kfree(chip);
+		pci_disable_device(pci);
+		return err;
+	}
+
+	chip->iobase_phys = pci_resource_start(pci, 0);
+	chip->iobase_virt = ioremap(chip->iobase_phys,
+				      pci_resource_len(pci, 0));
+
+	printk("snd_xenon: iobase_phys=0x%lx iobase_virt=0x%llx\n", chip->iobase_phys, (unsigned long long)chip->iobase_virt);
+
+	if (request_irq(pci->irq, snd_xenon_interrupt, IRQF_SHARED,
+			card->shortname, chip)) {
+		snd_printk(KERN_ERR "unable to grab IRQ %d\n", pci->irq);
+		snd_xenon_free(chip);
+		return -EBUSY;
+	}
+	chip->irq = pci->irq;
+	pci_intx(pci, IRQ_ENABLE);
+	printk("snd_xenon: irq=%x\n", chip->irq);
+
+	snd_xenon_init(chip);
+
+	if ((err = snd_xenon_new_pcm(chip)) < 0) {
+		snd_printk(KERN_WARNING "Could not to create PCM\n");
+		snd_xenon_free(chip);
+		return err;
+	}
+
+	if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,
+						chip, &ops)) < 0) {
+		snd_xenon_free(chip);
+		return err;
+	}
+
+	snd_card_set_dev(card, &pci->dev);
+
+	*rchip = chip;
+
+	init_timer(&chip->timer);
+	chip->timer.function = snd_xenon_timer_fn;
+	chip->timer.data = (unsigned long)chip;
+	chip->timer_in_use = 1;
+	add_timer(&chip->timer);
+
+	printk("snd_xenon: driver initialized\n");
+
+	return 0;
+}
+
+static int snd_xenon_dev_free(struct snd_device *device)
+{
+	struct snd_xenon *chip = device->device_data;
+	return snd_xenon_free(chip);
+}
+
+static int snd_xenon_free(struct snd_xenon *chip)
+{
+	snd_xenon_set_irq_flag(chip, IRQ_DISABLE);
+
+	spin_lock_irq(&chip->lock);
+	chip->timer_in_use = 0;
+	spin_unlock_irq(&chip->lock);
+	del_timer_sync(&chip->timer);
+
+	if (chip->irq >= 0)
+		free_irq(chip->irq, chip);
+	if (chip->descr_base_virt)
+		pci_free_consistent(chip->pci, DESCRIPTOR_BUFFER_SIZE * 2, chip->descr_base_virt, chip->descr_base_phys);
+	if (chip->iobase_virt)
+		  iounmap(chip->iobase_virt);
+	pci_release_regions(chip->pci);
+	pci_disable_device(chip->pci);
+	kfree(chip);
+	return 0;
+}
+
+static int snd_xenon_probe(struct pci_dev *pci,
+			     const struct pci_device_id *pci_id)
+{
+	static int dev;
+	struct snd_card *card;
+	struct snd_xenon *chip;
+	int err;
+
+	if (dev >= SNDRV_CARDS)
+		return -ENODEV;
+	if (!enable[dev]) {
+		dev++;
+		return -ENOENT;
+	}
+
+	err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card);
+	if (err < 0)
+		return -ENOMEM;
+
+	if ((err = snd_xenon_create(card, pci, &chip)) < 0) {
+		snd_card_free(card);
+		snd_xenon_free(chip);
+		return err;
+	}
+	card->private_data = chip;
+
+	strcpy(card->driver, "snd-xenon");
+	sprintf(card->shortname, "Xenon AudioPCI");
+	sprintf(card->longname, "%s at 0x%lx irq %i",
+				card->shortname, chip->iobase_phys, chip->irq);
+
+	if ((err = snd_card_register(card)) < 0) {
+		snd_card_free(card);
+		snd_xenon_free(chip);
+		return err;
+	}
+
+	pci_set_drvdata(pci, card);
+	dev++;
+
+	return 0;
+}
+
+static void snd_xenon_remove(struct pci_dev *pci)
+{
+	snd_card_free(pci_get_drvdata(pci));
+	pci_set_drvdata(pci, NULL);
+}
+
+static struct pci_driver driver = {
+	.name = "snd-xenon",
+	.id_table = snd_xenon_ids,
+	.probe = snd_xenon_probe,
+	.remove = snd_xenon_remove,
+};
+
+static int __init alsa_card_xenon_init(void)
+{
+	return pci_register_driver(&driver);
+}
+
+static void __exit alsa_card_xenon_exit(void)
+{
+	pci_unregister_driver(&driver);
+}
+
+module_init(alsa_card_xenon_init)
+module_exit(alsa_card_xenon_exit)
+
+MODULE_AUTHOR("jc4360@gmail.com");
+MODULE_DESCRIPTION("Xenon Audio Driver");
+MODULE_LICENSE("GPL");