diff options
Diffstat (limited to 'include/asm-v850/v850e2_cache.h')
| -rw-r--r-- | include/asm-v850/v850e2_cache.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/include/asm-v850/v850e2_cache.h b/include/asm-v850/v850e2_cache.h new file mode 100644 index 0000000..61acda1 --- /dev/null +++ b/include/asm-v850/v850e2_cache.h @@ -0,0 +1,74 @@ +/* + * include/asm-v850/v850e2_cache_cache.h -- Cache control for V850E2 + * cache memories + * + * Copyright (C) 2003 NEC Electronics Corporation + * Copyright (C) 2003 Miles Bader <miles@gnu.org> + * + * 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. + * + * Written by Miles Bader <miles@gnu.org> + */ + +#ifndef __V850_V850E2_CACHE_H__ +#define __V850_V850E2_CACHE_H__ + +#include <asm/types.h> + + +/* Cache control registers. */ + +/* Bus Transaction Control */ +#define V850E2_CACHE_BTSC_ADDR 0xFFFFF070 +#define V850E2_CACHE_BTSC (*(volatile u16 *)V850E2_CACHE_BTSC_ADDR) +#define V850E2_CACHE_BTSC_ICM 0x0001 /* icache enable */ +#define V850E2_CACHE_BTSC_DCM0 0x0004 /* dcache enable, bit 0 */ +#define V850E2_CACHE_BTSC_DCM1 0x0008 /* dcache enable, bit 1 */ +#define V850E2_CACHE_BTSC_DCM_WT /* write-through */ \ + V850E2_CACHE_BTSC_DCM0 +#ifdef CONFIG_V850E2_V850E2S +# define V850E2_CACHE_BTSC_DCM_WB_NO_ALLOC /* write-back, non-alloc */ \ + V850E2_CACHE_BTSC_DCM1 +# define V850E2_CACHE_BTSC_DCM_WB_ALLOC /* write-back, non-alloc */ \ + (V850E2_CACHE_BTSC_DCM1 | V850E2_CACHE_BTSC_DCM0) +# define V850E2_CACHE_BTSC_ISEQ 0x0010 /* icache `address sequence mode' */ +# define V850E2_CACHE_BTSC_DSEQ 0x0020 /* dcache `address sequence mode' */ +# define V850E2_CACHE_BTSC_IRFC 0x0030 +# define V850E2_CACHE_BTSC_ILCD 0x4000 +# define V850E2_CACHE_BTSC_VABE 0x8000 +#endif /* CONFIG_V850E2_V850E2S */ + +/* Cache operation start address register (low-bits). */ +#define V850E2_CACHE_CADL_ADDR 0xFFFFF074 +#define V850E2_CACHE_CADL (*(volatile u16 *)V850E2_CACHE_CADL_ADDR) +/* Cache operation start address register (high-bits). */ +#define V850E2_CACHE_CADH_ADDR 0xFFFFF076 +#define V850E2_CACHE_CADH (*(volatile u16 *)V850E2_CACHE_CADH_ADDR) +/* Cache operation count register. */ +#define V850E2_CACHE_CCNT_ADDR 0xFFFFF078 +#define V850E2_CACHE_CCNT (*(volatile u16 *)V850E2_CACHE_CCNT_ADDR) +/* Cache operation specification register. */ +#define V850E2_CACHE_COPR_ADDR 0xFFFFF07A +#define V850E2_CACHE_COPR (*(volatile u16 *)V850E2_CACHE_COPR_ADDR) +#define V850E2_CACHE_COPR_STRT 0x0001 /* start cache operation */ +#define V850E2_CACHE_COPR_LBSL 0x0100 /* 0 = icache, 1 = dcache */ +#define V850E2_CACHE_COPR_WSLE 0x0200 /* operate on cache way */ +#define V850E2_CACHE_COPR_WSL(way) ((way) * 0x0400) /* way select */ +#define V850E2_CACHE_COPR_CFC(op) ((op) * 0x1000) /* cache function code */ + + +/* Size of a cache line in bytes. */ +#define V850E2_CACHE_LINE_SIZE_BITS 4 +#define V850E2_CACHE_LINE_SIZE (1 << V850E2_CACHE_LINE_SIZE_BITS) + +/* The size of each cache `way' in lines. */ +#define V850E2_CACHE_WAY_SIZE 256 + + +/* For <asm/cache.h> */ +#define L1_CACHE_BYTES V850E2_CACHE_LINE_SIZE + + +#endif /* __V850_V850E2_CACHE_H__ */ |
