armv7.h 2.5 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. /* Cortex-A9 revisions */
  28. #define MIDR_CORTEX_A9_R0P1 0x410FC091
  29. #define MIDR_CORTEX_A9_R1P2 0x411FC092
  30. #define MIDR_CORTEX_A9_R1P3 0x411FC093
  31. #define MIDR_CORTEX_A9_R2P10 0x412FC09A
  32. /* Cortex-A15 revisions */
  33. #define MIDR_CORTEX_A15_R0P0 0x410FC0F0
  34. /* CCSIDR */
  35. #define CCSIDR_LINE_SIZE_OFFSET 0
  36. #define CCSIDR_LINE_SIZE_MASK 0x7
  37. #define CCSIDR_ASSOCIATIVITY_OFFSET 3
  38. #define CCSIDR_ASSOCIATIVITY_MASK (0x3FF << 3)
  39. #define CCSIDR_NUM_SETS_OFFSET 13
  40. #define CCSIDR_NUM_SETS_MASK (0x7FFF << 13)
  41. /*
  42. * Values for InD field in CSSELR
  43. * Selects the type of cache
  44. */
  45. #define ARMV7_CSSELR_IND_DATA_UNIFIED 0
  46. #define ARMV7_CSSELR_IND_INSTRUCTION 1
  47. /* Values for Ctype fields in CLIDR */
  48. #define ARMV7_CLIDR_CTYPE_NO_CACHE 0
  49. #define ARMV7_CLIDR_CTYPE_INSTRUCTION_ONLY 1
  50. #define ARMV7_CLIDR_CTYPE_DATA_ONLY 2
  51. #define ARMV7_CLIDR_CTYPE_INSTRUCTION_DATA 3
  52. #define ARMV7_CLIDR_CTYPE_UNIFIED 4
  53. /*
  54. * CP15 Barrier instructions
  55. * Please note that we have separate barrier instructions in ARMv7
  56. * However, we use the CP15 based instructtions because we use
  57. * -march=armv5 in U-Boot
  58. */
  59. #define CP15ISB asm volatile ("mcr p15, 0, %0, c7, c5, 4" : : "r" (0))
  60. #define CP15DSB asm volatile ("mcr p15, 0, %0, c7, c10, 4" : : "r" (0))
  61. #define CP15DMB asm volatile ("mcr p15, 0, %0, c7, c10, 5" : : "r" (0))
  62. void v7_outer_cache_enable(void);
  63. void v7_outer_cache_disable(void);
  64. void v7_outer_cache_flush_all(void);
  65. void v7_outer_cache_inval_all(void);
  66. void v7_outer_cache_flush_range(u32 start, u32 end);
  67. void v7_outer_cache_inval_range(u32 start, u32 end);
  68. #endif