Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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 */
+