arch/arm/mach-s5pc1xx/cache.c

   1 /*
   2  * Copyright (C) 2014 Samsung Electronics
   3  * Minkyu Kang <mk7.kang@samsung.com>
   4  * Robert Baldyga <r.baldyga@samsung.com>
   5  *
   6  * based on arch/arm/cpu/armv7/omap3/cache.S
   7  *
   8  * SPDX-License-Identifier:     GPL-2.0+
   9  */
  10
  11 #include <common.h>
  12
  13 #ifndef CONFIG_SYS_DCACHE_OFF
  14 void enable_caches(void)
  15 {
  16         dcache_enable();
  17 }
  18
  19 void disable_caches(void)
  20 {
  21         dcache_disable();
  22 }
  23 #endif
  24
  25 #ifndef CONFIG_SYS_L2CACHE_OFF
  26 void v7_outer_cache_enable(void)
  27 {
  28         __asm(
  29                 "push    {r0, r1, r2, lr}\n\t"
  30                 "mrc     15, 0, r3, cr1, cr0, 1\n\t"
  31                 "orr     r3, r3, #2\n\t"
  32                 "mcr     15, 0, r3, cr1, cr0, 1\n\t"
  33                 "pop     {r1, r2, r3, pc}"
  34         );
  35 }
  36
  37 void v7_outer_cache_disable(void)
  38 {
  39         __asm(
  40                 "push    {r0, r1, r2, lr}\n\t"
  41                 "mrc     15, 0, r3, cr1, cr0, 1\n\t"
  42                 "bic     r3, r3, #2\n\t"
  43                 "mcr     15, 0, r3, cr1, cr0, 1\n\t"
  44                 "pop     {r1, r2, r3, pc}"
  45         );
  46 }
  47 #endif