diff --git a/include/asm-sh/cpu-sh2/addrspace.h b/include/asm-sh/cpu-sh2/addrspace.h
new file mode 100644
index 0000000..8706c90
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/addrspace.h
@@ -0,0 +1,16 @@
+/*
+ * Definitions for the address spaces of the SH-2 CPUs.
+ *
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH2_ADDRSPACE_H
+#define __ASM_CPU_SH2_ADDRSPACE_H
+
+/* Should fill here */
+
+#endif /* __ASM_CPU_SH2_ADDRSPACE_H */
+
diff --git a/include/asm-sh/cpu-sh2/cache.h b/include/asm-sh/cpu-sh2/cache.h
new file mode 100644
index 0000000..cd96402
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/cache.h
@@ -0,0 +1,31 @@
+/*
+ * include/asm-sh/cpu-sh2/cache.h
+ *
+ * Copyright (C) 2003 Paul Mundt
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH2_CACHE_H
+#define __ASM_CPU_SH2_CACHE_H
+
+#define L1_CACHE_SHIFT	4
+
+#define CCR		0xfffffe92	/* Address of Cache Control Register */
+
+#define CCR_CACHE_CE	0x01	/* Cache enable */
+#define CCR_CACHE_ID	0x02	/* Instruction Replacement disable */
+#define CCR_CACHE_OD	0x04	/* Data Replacement disable */
+#define CCR_CACHE_TW	0x08	/* Two-way mode */
+#define CCR_CACHE_CP	0x10	/* Cache purge */
+
+#define CACHE_OC_ADDRESS_ARRAY	0x60000000
+
+#define CCR_CACHE_ENABLE	CCR_CACHE_CE
+#define CCR_CACHE_INVALIDATE	CCR_CACHE_CP
+#define CCR_CACHE_ORA		CCR_CACHE_TW
+#define CCR_CACHE_WT		0x00	/* SH-2 is _always_ write-through */
+
+#endif /* __ASM_CPU_SH2_CACHE_H */
+
diff --git a/include/asm-sh/cpu-sh2/cacheflush.h b/include/asm-sh/cpu-sh2/cacheflush.h
new file mode 100644
index 0000000..f556fa8
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/cacheflush.h
@@ -0,0 +1,42 @@
+/*
+ * include/asm-sh/cpu-sh2/cacheflush.h
+ *
+ * Copyright (C) 2003 Paul Mundt
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH2_CACHEFLUSH_H
+#define __ASM_CPU_SH2_CACHEFLUSH_H
+
+/* 
+ * Cache flushing:
+ *
+ *  - flush_cache_all() flushes entire cache
+ *  - flush_cache_mm(mm) flushes the specified mm context's cache lines
+ *  - flush_cache_page(mm, vmaddr, pfn) flushes a single page
+ *  - flush_cache_range(vma, start, end) flushes a range of pages
+ *
+ *  - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
+ *  - flush_icache_range(start, end) flushes(invalidates) a range for icache
+ *  - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
+ *
+ *  Caches are indexed (effectively) by physical address on SH-2, so
+ *  we don't need them.
+ */
+#define flush_cache_all()			do { } while (0)
+#define flush_cache_mm(mm)			do { } while (0)
+#define flush_cache_range(vma, start, end)	do { } while (0)
+#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
+#define flush_dcache_page(page)			do { } while (0)
+#define flush_dcache_mmap_lock(mapping)		do { } while (0)
+#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
+#define flush_icache_range(start, end)		do { } while (0)
+#define flush_icache_page(vma,pg)		do { } while (0)
+#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
+#define flush_cache_sigtramp(vaddr)		do { } while (0)
+
+#define p3_cache_init()				do { } while (0)
+#endif /* __ASM_CPU_SH2_CACHEFLUSH_H */
+
diff --git a/include/asm-sh/cpu-sh2/dma.h b/include/asm-sh/cpu-sh2/dma.h
new file mode 100644
index 0000000..d66b43c
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/dma.h
@@ -0,0 +1,23 @@
+/*
+ * Definitions for the SH-2 DMAC.
+ *
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH2_DMA_H
+#define __ASM_CPU_SH2_DMA_H
+
+#define SH_MAX_DMA_CHANNELS	2
+
+#define SAR	((unsigned long[]){ 0xffffff80, 0xffffff90 })
+#define DAR	((unsigned long[]){ 0xffffff84, 0xffffff94 })
+#define DMATCR	((unsigned long[]){ 0xffffff88, 0xffffff98 })
+#define CHCR	((unsigned long[]){ 0xfffffffc, 0xffffff9c })
+
+#define DMAOR	0xffffffb0
+
+#endif /* __ASM_CPU_SH2_DMA_H */
+
diff --git a/include/asm-sh/cpu-sh2/shmparam.h b/include/asm-sh/cpu-sh2/shmparam.h
new file mode 100644
index 0000000..817c182
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/shmparam.h
@@ -0,0 +1,16 @@
+/*
+ * include/asm-sh/cpu-sh2/shmparam.h
+ *
+ * Copyright (C) 2003  Paul Mundt
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH2_SHMPARAM_H
+#define __ASM_CPU_SH2_SHMPARAM_H
+
+#define	SHMLBA PAGE_SIZE		 /* attach addr a multiple of this */
+
+#endif /* __ASM_CPU_SH2_SHMPARAM_H */
+
diff --git a/include/asm-sh/cpu-sh2/sigcontext.h b/include/asm-sh/cpu-sh2/sigcontext.h
new file mode 100644
index 0000000..fe5c15d
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/sigcontext.h
@@ -0,0 +1,17 @@
+#ifndef __ASM_CPU_SH2_SIGCONTEXT_H
+#define __ASM_CPU_SH2_SIGCONTEXT_H
+
+struct sigcontext {
+	unsigned long	oldmask;
+
+	/* CPU registers */
+	unsigned long sc_regs[16];
+	unsigned long sc_pc;
+	unsigned long sc_pr;
+	unsigned long sc_sr;
+	unsigned long sc_gbr;
+	unsigned long sc_mach;
+	unsigned long sc_macl;
+};
+
+#endif /* __ASM_CPU_SH2_SIGCONTEXT_H */
diff --git a/include/asm-sh/cpu-sh2/ubc.h b/include/asm-sh/cpu-sh2/ubc.h
new file mode 100644
index 0000000..ba0e87f
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/ubc.h
@@ -0,0 +1,32 @@
+/*
+ * include/asm-sh/cpu-sh2/ubc.h
+ *
+ * Copyright (C) 2003 Paul Mundt
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH2_UBC_H
+#define __ASM_CPU_SH2_UBC_H
+
+#define UBC_BARA                0xffffff40
+#define UBC_BAMRA               0xffffff44
+#define UBC_BBRA                0xffffff48
+#define UBC_BARB                0xffffff60
+#define UBC_BAMRB               0xffffff64
+#define UBC_BBRB                0xffffff68
+#define UBC_BDRB                0xffffff70
+#define UBC_BDMRB               0xffffff74
+#define UBC_BRCR                0xffffff78
+
+/*
+ * We don't have any ASID changes to make in the UBC on the SH-2.
+ *
+ * Make these purposely invalid to track misuse.
+ */
+#define UBC_BASRA		0x00000000
+#define UBC_BASRB		0x00000000
+
+#endif /* __ASM_CPU_SH2_UBC_H */
+
diff --git a/include/asm-sh/cpu-sh2/watchdog.h b/include/asm-sh/cpu-sh2/watchdog.h
new file mode 100644
index 0000000..393161c
--- /dev/null
+++ b/include/asm-sh/cpu-sh2/watchdog.h
@@ -0,0 +1,69 @@
+/*
+ * include/asm-sh/cpu-sh2/watchdog.h
+ *
+ * Copyright (C) 2002, 2003 Paul Mundt
+ *
+ * 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.
+ */
+#ifndef __ASM_CPU_SH2_WATCHDOG_H
+#define __ASM_CPU_SH2_WATCHDOG_H
+
+/*
+ * More SH-2 brilliance .. its not good enough that we can't read
+ * and write the same sizes to WTCNT, now we have to read and write
+ * with different sizes at different addresses for WTCNT _and_ RSTCSR.
+ *
+ * At least on the bright side no one has managed to screw over WTCSR
+ * in this fashion .. yet.
+ */
+/* Register definitions */
+#define WTCNT		0xfffffe80
+#define WTCSR		0xfffffe80
+#define RSTCSR		0xfffffe82
+
+#define WTCNT_R		(WTCNT + 1)
+#define RSTCSR_R	(RSTCSR + 1)
+
+/* Bit definitions */
+#define WTCSR_IOVF	0x80
+#define WTCSR_WT	0x40
+#define WTCSR_TME	0x20
+#define WTCSR_RSTS	0x00
+
+#define RSTCSR_RSTS	0x20
+
+/**
+ * 	sh_wdt_read_rstcsr - Read from Reset Control/Status Register
+ *
+ *	Reads back the RSTCSR value.
+ */
+static inline __u8 sh_wdt_read_rstcsr(void)
+{
+	/*
+	 * Same read/write brain-damage as for WTCNT here..
+	 */
+	return ctrl_inb(RSTCSR_R);
+}
+
+/**
+ * 	sh_wdt_write_csr - Write to Reset Control/Status Register
+ *
+ * 	@val: Value to write
+ *
+ * 	Writes the given value @val to the lower byte of the control/status
+ * 	register. The upper byte is set manually on each write.
+ */
+static inline void sh_wdt_write_rstcsr(__u8 val)
+{
+	/*
+	 * Note: Due to the brain-damaged nature of this register,
+	 * we can't presently touch the WOVF bit, since the upper byte
+	 * has to be swapped for this. So just leave it alone..
+	 */
+	ctrl_outw((WTCNT_HIGH << 8) | (__u16)val, RSTCSR);
+}
+
+#endif /* __ASM_CPU_SH2_WATCHDOG_H */
+