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 #include <cpu_func.h>
  12 #include <asm/cache.h>
  13
  14 #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
  15 void enable_caches(void)
  16 {
  17         dcache_enable();
  18 }
  19
  20 void disable_caches(void)
  21 {
  22         dcache_disable();
  23 }
  24 #endif
  25
  26 #ifndef CONFIG_SYS_L2CACHE_OFF
  27 void v7_outer_cache_enable(void)
  28 {
  29         __asm(
  30                 "push    {r0, r1, r2, lr}\n\t"
  31                 "mrc     15, 0, r3, cr1, cr0, 1\n\t"
  32                 "orr     r3, r3, #2\n\t"
  33                 "mcr     15, 0, r3, cr1, cr0, 1\n\t"
  34                 "pop     {r1, r2, r3, pc}"
  35         );
  36 }
  37
  38 void v7_outer_cache_disable(void)
  39 {
  40         __asm(
  41                 "push    {r0, r1, r2, lr}\n\t"
  42                 "mrc     15, 0, r3, cr1, cr0, 1\n\t"
  43                 "bic     r3, r3, #2\n\t"
  44                 "mcr     15, 0, r3, cr1, cr0, 1\n\t"
  45                 "pop     {r1, r2, r3, pc}"
  46         );
  47 }
  48 #endif