diff --git a/arch/sh64/mach-sim/Makefile b/arch/sh64/mach-sim/Makefile
new file mode 100644
index 0000000..819c407
--- /dev/null
+++ b/arch/sh64/mach-sim/Makefile
@@ -0,0 +1,14 @@
+#
+# Makefile for the SH-5 Simulator specific parts of the kernel
+#
+# Note! Dependencies are done automagically by 'make dep', which also
+# removes any old dependencies. DON'T put your own dependencies here
+# unless it's something special (ie not a .c file).
+#
+
+O_TARGET := sim.o
+
+obj-y := setup.o
+
+include $(TOPDIR)/Rules.make
+
diff --git a/arch/sh64/mach-sim/setup.c b/arch/sh64/mach-sim/setup.c
new file mode 100644
index 0000000..a68639c
--- /dev/null
+++ b/arch/sh64/mach-sim/setup.c
@@ -0,0 +1,164 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * arch/sh64/mach-sim/setup.c
+ *
+ * ST50 Simulator Platform Support
+ *
+ * This file handles the architecture-dependent parts of initialization
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * lethal@linux-sh.org:          15th May 2003
+ *    Use the generic procfs cpuinfo interface, just return a valid board name.
+ */
+
+#include <linux/stddef.h>
+#include <linux/init.h>
+#include <linux/config.h>
+#include <linux/mm.h>
+#include <linux/bootmem.h>
+#include <linux/delay.h>
+#include <linux/kernel.h>
+#include <asm/addrspace.h>
+#include <asm/processor.h>
+#include <asm/platform.h>
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/page.h>
+
+#ifdef CONFIG_BLK_DEV_INITRD
+#include "../rootfs/rootfs.h"
+#endif
+
+static	__init void platform_monitor(void);
+static	__init void platform_setup(void);
+static	__init void platform_reserve(void);
+
+
+#define	PHYS_MEMORY	CONFIG_MEMORY_SIZE_IN_MB*1024*1024
+
+#if (PHYS_MEMORY < P1SEG_FOOTPRINT_RAM)
+#error "Invalid kernel configuration. Physical memory below footprint requirements."
+#endif
+
+#define RAM_DISK_START	CONFIG_MEMORY_START+P1SEG_INITRD_BLOCK	/* Top of 4MB */
+#ifdef PLATFORM_ROMFS_SIZE
+#define	RAM_DISK_SIZE	(PAGE_ALIGN(PLATFORM_ROMFS_SIZE))     /* Variable Top */
+#if ((RAM_DISK_START + RAM_DISK_SIZE) > (CONFIG_MEMORY_START + PHYS_MEMORY))
+#error "Invalid kernel configuration. ROM RootFS exceeding physical memory."
+#endif
+#else
+#define RAM_DISK_SIZE	P1SEG_INITRD_BLOCK_SIZE			/* Top of 4MB */
+#endif
+
+#define RES_COUNT(res) ((sizeof((res))/sizeof(struct resource)))
+
+/*
+ * Platform Dependent Interrupt Priorities.
+ */
+
+/* Using defaults defined in irq.h */
+#define	RES NO_PRIORITY		/* Disabled */
+#define IR0 IRL0_PRIORITY	/* IRLs */
+#define IR1 IRL1_PRIORITY
+#define IR2 IRL2_PRIORITY
+#define IR3 IRL3_PRIORITY
+#define PCA INTA_PRIORITY	/* PCI Ints */
+#define PCB INTB_PRIORITY
+#define PCC INTC_PRIORITY
+#define PCD INTD_PRIORITY
+#define SER TOP_PRIORITY
+#define ERR TOP_PRIORITY
+#define PW0 TOP_PRIORITY
+#define PW1 TOP_PRIORITY
+#define PW2 TOP_PRIORITY
+#define PW3 TOP_PRIORITY
+#define DM0 NO_PRIORITY		/* DMA Ints */
+#define DM1 NO_PRIORITY
+#define DM2 NO_PRIORITY
+#define DM3 NO_PRIORITY
+#define DAE NO_PRIORITY
+#define TU0 TIMER_PRIORITY	/* TMU Ints */
+#define TU1 NO_PRIORITY
+#define TU2 NO_PRIORITY
+#define TI2 NO_PRIORITY
+#define ATI NO_PRIORITY		/* RTC Ints */
+#define PRI NO_PRIORITY
+#define CUI RTC_PRIORITY
+#define ERI SCIF_PRIORITY	/* SCIF Ints */
+#define RXI SCIF_PRIORITY
+#define BRI SCIF_PRIORITY
+#define TXI SCIF_PRIORITY
+#define ITI TOP_PRIORITY	/* WDT Ints */
+
+/*
+ * Platform dependent structures: maps and parms block.
+ */
+struct resource io_resources[] = {
+	/* Nothing yet .. */
+};
+
+struct resource kram_resources[] = {
+	{ "Kernel code", 0, 0 },	/* These must be last in the array */
+	{ "Kernel data", 0, 0 }		/* These must be last in the array */
+};
+
+struct resource xram_resources[] = {
+	/* Nothing yet .. */
+};
+
+struct resource rom_resources[] = {
+	/* Nothing yet .. */
+};
+
+struct sh64_platform platform_parms = {
+	.readonly_rootfs =	1,
+	.initial_root_dev =	0x0100,
+	.loader_type =		1,
+	.initrd_start =		RAM_DISK_START,
+	.initrd_size =		RAM_DISK_SIZE,
+	.io_res_p =		io_resources,
+	.io_res_count =		RES_COUNT(io_resources),
+	.kram_res_p =		kram_resources,
+	.kram_res_count =	RES_COUNT(kram_resources),
+	.xram_res_p =		xram_resources,
+	.xram_res_count =	RES_COUNT(xram_resources),
+	.rom_res_p =		rom_resources,
+	.rom_res_count =	RES_COUNT(rom_resources),
+};
+
+int platform_int_priority[NR_IRQS] = {
+	IR0, IR1, IR2, IR3, PCA, PCB, PCC, PCD,	/* IRQ  0- 7 */
+	RES, RES, RES, RES, SER, ERR, PW3, PW2,	/* IRQ  8-15 */
+	PW1, PW0, DM0, DM1, DM2, DM3, DAE, RES,	/* IRQ 16-23 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 24-31 */
+	TU0, TU1, TU2, TI2, ATI, PRI, CUI, ERI,	/* IRQ 32-39 */
+	RXI, BRI, TXI, RES, RES, RES, RES, RES,	/* IRQ 40-47 */
+	RES, RES, RES, RES, RES, RES, RES, RES,	/* IRQ 48-55 */
+	RES, RES, RES, RES, RES, RES, RES, ITI,	/* IRQ 56-63 */
+};
+
+void __init platform_setup(void)
+{
+	/* Simulator platform leaves the decision to head.S */
+	platform_parms.fpu_flags = fpu_in_use;
+}
+
+void __init platform_monitor(void)
+{
+	/* Nothing yet .. */
+}
+
+void __init platform_reserve(void)
+{
+	/* Nothing yet .. */
+}
+
+const char *get_system_type(void)
+{
+	return "SH-5 Simulator";
+}
+