include/asm-v850/v850e_cache.h

   1 /*
   2  * include/asm-v850/v850e_cache.h -- Cache control for V850E cache memories
   3  *
   4  *  Copyright (C) 2001,03  NEC Electronics Corporation
   5  *  Copyright (C) 2001,03  Miles Bader <miles@gnu.org>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General
   8  * Public License.  See the file COPYING in the main directory of this
   9  * archive for more details.
  10  *
  11  * Written by Miles Bader <miles@gnu.org>
  12  */
  13
  14 /* This file implements cache control for the rather simple cache used on
  15    some V850E CPUs, specifically the NB85E/TEG CPU-core and the V850E/ME2
  16    CPU.  V850E2 processors have their own (better) cache
  17    implementation.  */
  18
  19 #ifndef __V850_V850E_CACHE_H__
  20 #define __V850_V850E_CACHE_H__
  21
  22 #include <asm/types.h>
  23
  24
  25 /* Cache control registers.  */
  26 #define V850E_CACHE_BHC_ADDR    0xFFFFF06A
  27 #define V850E_CACHE_BHC         (*(volatile u16 *)V850E_CACHE_BHC_ADDR)
  28 #define V850E_CACHE_ICC_ADDR    0xFFFFF070
  29 #define V850E_CACHE_ICC         (*(volatile u16 *)V850E_CACHE_ICC_ADDR)
  30 #define V850E_CACHE_ISI_ADDR    0xFFFFF072
  31 #define V850E_CACHE_ISI         (*(volatile u16 *)V850E_CACHE_ISI_ADDR)
  32 #define V850E_CACHE_DCC_ADDR    0xFFFFF078
  33 #define V850E_CACHE_DCC         (*(volatile u16 *)V850E_CACHE_DCC_ADDR)
  34
  35 /* Size of a cache line in bytes.  */
  36 #define V850E_CACHE_LINE_SIZE   16
  37
  38 /* For <asm/cache.h> */
  39 #define L1_CACHE_BYTES          V850E_CACHE_LINE_SIZE
  40
  41
  42 #if defined(__KERNEL__) && !defined(__ASSEMBLY__)
  43 /* Set caching params via the BHC, ICC, and DCC registers.  */
  44 void v850e_cache_enable (u16 bhc, u16 icc, u16 dcc);
  45 #endif /* __KERNEL__ && !__ASSEMBLY__ */
  46
  47
  48 #endif /* __V850_V850E_CACHE_H__ */