diff options
Diffstat (limited to 'arch/sh/include/cpu-sh4/cpu/cache.h')
| -rw-r--r-- | arch/sh/include/cpu-sh4/cpu/cache.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/sh/include/cpu-sh4/cpu/cache.h b/arch/sh/include/cpu-sh4/cpu/cache.h new file mode 100644 index 0000000..1c61ebf --- /dev/null +++ b/arch/sh/include/cpu-sh4/cpu/cache.h @@ -0,0 +1,42 @@ +/* + * include/asm-sh/cpu-sh4/cache.h + * + * Copyright (C) 1999 Niibe Yutaka + * + * 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_SH4_CACHE_H +#define __ASM_CPU_SH4_CACHE_H + +#define L1_CACHE_SHIFT 5 + +#define SH_CACHE_VALID 1 +#define SH_CACHE_UPDATED 2 +#define SH_CACHE_COMBINED 4 +#define SH_CACHE_ASSOC 8 + +#define CCR 0xff00001c /* Address of Cache Control Register */ +#define CCR_CACHE_OCE 0x0001 /* Operand Cache Enable */ +#define CCR_CACHE_WT 0x0002 /* Write-Through (for P0,U0,P3) (else writeback)*/ +#define CCR_CACHE_CB 0x0004 /* Copy-Back (for P1) (else writethrough) */ +#define CCR_CACHE_OCI 0x0008 /* OC Invalidate */ +#define CCR_CACHE_ORA 0x0020 /* OC RAM Mode */ +#define CCR_CACHE_OIX 0x0080 /* OC Index Enable */ +#define CCR_CACHE_ICE 0x0100 /* Instruction Cache Enable */ +#define CCR_CACHE_ICI 0x0800 /* IC Invalidate */ +#define CCR_CACHE_IIX 0x8000 /* IC Index Enable */ +#ifndef CONFIG_CPU_SH4A +#define CCR_CACHE_EMODE 0x80000000 /* EMODE Enable */ +#endif + +/* Default CCR setup: 8k+16k-byte cache,P1-wb,enable */ +#define CCR_CACHE_ENABLE (CCR_CACHE_OCE|CCR_CACHE_ICE) +#define CCR_CACHE_INVALIDATE (CCR_CACHE_OCI|CCR_CACHE_ICI) + +#define CACHE_IC_ADDRESS_ARRAY 0xf0000000 +#define CACHE_OC_ADDRESS_ARRAY 0xf4000000 + +#endif /* __ASM_CPU_SH4_CACHE_H */ + |