armv7.h 2.2 KB

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  1. /*
  2. * (C) Copyright 2010
  3. * Texas Instruments, <www.ti.com>
  4. * Aneesh V <aneesh@ti.com>
  5. *
  6. * See file CREDITS for list of people who contributed to this
  7. * project.
  8. *
  9. * This program is free software; you can redistribute it and/or
  10. * modify it under the terms of the GNU General Public License as
  11. * published by the Free Software Foundation; either version 2 of
  12. * the License, or (at your option) any later version.
  13. *
  14. * This program is distributed in the hope that it will be useful,
  15. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17. * GNU General Public License for more details.
  18. *
  19. * You should have received a copy of the GNU General Public License
  20. * along with this program; if not, write to the Free Software
  21. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22. * MA 02111-1307 USA
  23. */
  24. #ifndef ARMV7_H
  25. #define ARMV7_H
  26. #include <linux/types.h>
  27. /* CCSIDR */
  28. #define CCSIDR_LINE_SIZE_OFFSET 0
  29. #define CCSIDR_LINE_SIZE_MASK 0x7
  30. #define CCSIDR_ASSOCIATIVITY_OFFSET 3
  31. #define CCSIDR_ASSOCIATIVITY_MASK (0x3FF << 3)
  32. #define CCSIDR_NUM_SETS_OFFSET 13
  33. #define CCSIDR_NUM_SETS_MASK (0x7FFF << 13)
  34. /*
  35. * Values for InD field in CSSELR
  36. * Selects the type of cache
  37. */
  38. #define ARMV7_CSSELR_IND_DATA_UNIFIED 0
  39. #define ARMV7_CSSELR_IND_INSTRUCTION 1
  40. /* Values for Ctype fields in CLIDR */
  41. #define ARMV7_CLIDR_CTYPE_NO_CACHE 0
  42. #define ARMV7_CLIDR_CTYPE_INSTRUCTION_ONLY 1
  43. #define ARMV7_CLIDR_CTYPE_DATA_ONLY 2
  44. #define ARMV7_CLIDR_CTYPE_INSTRUCTION_DATA 3
  45. #define ARMV7_CLIDR_CTYPE_UNIFIED 4
  46. /*
  47. * CP15 Barrier instructions
  48. * Please note that we have separate barrier instructions in ARMv7
  49. * However, we use the CP15 based instructtions because we use
  50. * -march=armv5 in U-Boot
  51. */
  52. #define CP15ISB asm volatile ("mcr p15, 0, %0, c7, c5, 4" : : "r" (0))
  53. #define CP15DSB asm volatile ("mcr p15, 0, %0, c7, c10, 4" : : "r" (0))
  54. #define CP15DMB asm volatile ("mcr p15, 0, %0, c7, c10, 5" : : "r" (0))
  55. void v7_outer_cache_enable(void);
  56. void v7_outer_cache_disable(void);
  57. void v7_outer_cache_flush_all(void);
  58. void v7_outer_cache_inval_all(void);
  59. void v7_outer_cache_flush_range(u32 start, u32 end);
  60. void v7_outer_cache_inval_range(u32 start, u32 end);
  61. #endif