arch/arm/mach-s5pc1xx/cache.c

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