diff options
Diffstat (limited to 'include/asm-sh/cpu-sh2')
| -rw-r--r-- | include/asm-sh/cpu-sh2/addrspace.h | 16 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh2/cache.h | 31 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh2/cacheflush.h | 42 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh2/dma.h | 23 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh2/shmparam.h | 16 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh2/sigcontext.h | 17 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh2/ubc.h | 32 | ||||
| -rw-r--r-- | include/asm-sh/cpu-sh2/watchdog.h | 69 |
8 files changed, 246 insertions, 0 deletions
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 */ + |
