cache.c 897 B

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