linux/arch/sh/include/cpu-sh3/cpu/cache.h
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   1/*
   2 * include/asm-sh/cpu-sh3/cache.h
   3 *
   4 * Copyright (C) 1999 Niibe Yutaka
   5 *
   6 * This file is subject to the terms and conditions of the GNU General Public
   7 * License.  See the file "COPYING" in the main directory of this archive
   8 * for more details.
   9 */
  10#ifndef __ASM_CPU_SH3_CACHE_H
  11#define __ASM_CPU_SH3_CACHE_H
  12
  13#define L1_CACHE_SHIFT  4
  14
  15#define SH_CACHE_VALID          1
  16#define SH_CACHE_UPDATED        2
  17#define SH_CACHE_COMBINED       4
  18#define SH_CACHE_ASSOC          8
  19
  20#define CCR             0xffffffec      /* Address of Cache Control Register */
  21
  22#define CCR_CACHE_CE    0x01    /* Cache Enable */
  23#define CCR_CACHE_WT    0x02    /* Write-Through (for P0,U0,P3) (else writeback) */
  24#define CCR_CACHE_CB    0x04    /* Write-Back (for P1) (else writethrough) */
  25#define CCR_CACHE_CF    0x08    /* Cache Flush */
  26#define CCR_CACHE_ORA   0x20    /* RAM mode */
  27
  28#define CACHE_OC_ADDRESS_ARRAY  0xf0000000
  29#define CACHE_PHYSADDR_MASK     0x1ffffc00
  30
  31#define CCR_CACHE_ENABLE        CCR_CACHE_CE
  32#define CCR_CACHE_INVALIDATE    CCR_CACHE_CF
  33
  34#if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
  35    defined(CONFIG_CPU_SUBTYPE_SH7710) || \
  36    defined(CONFIG_CPU_SUBTYPE_SH7720) || \
  37    defined(CONFIG_CPU_SUBTYPE_SH7721)
  38#define CCR3_REG        0xa40000b4
  39#define CCR_CACHE_16KB  0x00010000
  40#define CCR_CACHE_32KB  0x00020000
  41#endif
  42
  43#endif /* __ASM_CPU_SH3_CACHE_H */
  44