cache.c 874 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. #if !CONFIG_IS_ENABLED(SYS_DCACHE_OFF)
  12. void enable_caches(void)
  13. {
  14. dcache_enable();
  15. }
  16. void disable_caches(void)
  17. {
  18. dcache_disable();
  19. }
  20. #endif
  21. #ifndef CONFIG_SYS_L2CACHE_OFF
  22. void v7_outer_cache_enable(void)
  23. {
  24. __asm(
  25. "push {r0, r1, r2, lr}\n\t"
  26. "mrc 15, 0, r3, cr1, cr0, 1\n\t"
  27. "orr r3, r3, #2\n\t"
  28. "mcr 15, 0, r3, cr1, cr0, 1\n\t"
  29. "pop {r1, r2, r3, pc}"
  30. );
  31. }
  32. void v7_outer_cache_disable(void)
  33. {
  34. __asm(
  35. "push {r0, r1, r2, lr}\n\t"
  36. "mrc 15, 0, r3, cr1, cr0, 1\n\t"
  37. "bic r3, r3, #2\n\t"
  38. "mcr 15, 0, r3, cr1, cr0, 1\n\t"
  39. "pop {r1, r2, r3, pc}"
  40. );
  41. }
  42. #endif