include/asm-v850/v850e2_cache.h

   1 /*
   2  * include/asm-v850/v850e2_cache_cache.h -- Cache control for V850E2
   3  *      cache memories
   4  *
   5  *  Copyright (C) 2003  NEC Electronics Corporation
   6  *  Copyright (C) 2003  Miles Bader <miles@gnu.org>
   7  *
   8  * This file is subject to the terms and conditions of the GNU General
   9  * Public License.  See the file COPYING in the main directory of this
  10  * archive for more details.
  11  *
  12  * Written by Miles Bader <miles@gnu.org>
  13  */
  14
  15 #ifndef __V850_V850E2_CACHE_H__
  16 #define __V850_V850E2_CACHE_H__
  17
  18 #include <asm/types.h>
  19
  20
  21 /* Cache control registers.  */
  22
  23 /* Bus Transaction Control */
  24 #define V850E2_CACHE_BTSC_ADDR  0xFFFFF070
  25 #define V850E2_CACHE_BTSC       (*(volatile u16 *)V850E2_CACHE_BTSC_ADDR)
  26 #define V850E2_CACHE_BTSC_ICM   0x0001 /* icache enable */
  27 #define V850E2_CACHE_BTSC_DCM0  0x0004 /* dcache enable, bit 0 */
  28 #define V850E2_CACHE_BTSC_DCM1  0x0008 /* dcache enable, bit 1 */
  29 #define V850E2_CACHE_BTSC_DCM_WT                      /* write-through */ \
  30                         V850E2_CACHE_BTSC_DCM0
  31 #ifdef CONFIG_V850E2_V850E2S
  32 # define V850E2_CACHE_BTSC_DCM_WB_NO_ALLOC    /* write-back, non-alloc */ \
  33                         V850E2_CACHE_BTSC_DCM1
  34 # define V850E2_CACHE_BTSC_DCM_WB_ALLOC       /* write-back, non-alloc */ \
  35                         (V850E2_CACHE_BTSC_DCM1 | V850E2_CACHE_BTSC_DCM0)
  36 # define V850E2_CACHE_BTSC_ISEQ 0x0010 /* icache `address sequence mode' */
  37 # define V850E2_CACHE_BTSC_DSEQ 0x0020 /* dcache `address sequence mode' */
  38 # define V850E2_CACHE_BTSC_IRFC 0x0030
  39 # define V850E2_CACHE_BTSC_ILCD 0x4000
  40 # define V850E2_CACHE_BTSC_VABE 0x8000
  41 #endif /* CONFIG_V850E2_V850E2S */
  42
  43 /* Cache operation start address register (low-bits).  */
  44 #define V850E2_CACHE_CADL_ADDR  0xFFFFF074
  45 #define V850E2_CACHE_CADL       (*(volatile u16 *)V850E2_CACHE_CADL_ADDR)
  46 /* Cache operation start address register (high-bits).  */
  47 #define V850E2_CACHE_CADH_ADDR  0xFFFFF076
  48 #define V850E2_CACHE_CADH       (*(volatile u16 *)V850E2_CACHE_CADH_ADDR)
  49 /* Cache operation count register.  */
  50 #define V850E2_CACHE_CCNT_ADDR  0xFFFFF078
  51 #define V850E2_CACHE_CCNT       (*(volatile u16 *)V850E2_CACHE_CCNT_ADDR)
  52 /* Cache operation specification register.  */
  53 #define V850E2_CACHE_COPR_ADDR  0xFFFFF07A
  54 #define V850E2_CACHE_COPR       (*(volatile u16 *)V850E2_CACHE_COPR_ADDR)
  55 #define V850E2_CACHE_COPR_STRT  0x0001 /* start cache operation */
  56 #define V850E2_CACHE_COPR_LBSL  0x0100 /* 0 = icache, 1 = dcache */
  57 #define V850E2_CACHE_COPR_WSLE  0x0200 /* operate on cache way */
  58 #define V850E2_CACHE_COPR_WSL(way) ((way) * 0x0400) /* way select */
  59 #define V850E2_CACHE_COPR_CFC(op)  ((op)  * 0x1000) /* cache function code */
  60
  61
  62 /* Size of a cache line in bytes.  */
  63 #define V850E2_CACHE_LINE_SIZE_BITS     4
  64 #define V850E2_CACHE_LINE_SIZE          (1 << V850E2_CACHE_LINE_SIZE_BITS)
  65
  66 /* The size of each cache `way' in lines.  */
  67 #define V850E2_CACHE_WAY_SIZE           256
  68
  69
  70 /* For <asm/cache.h> */
  71 #define L1_CACHE_BYTES                  V850E2_CACHE_LINE_SIZE
  72
  73
  74 #endif /* __V850_V850E2_CACHE_H__ */