cpu.h 1.8 KB

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  1. /*
  2. * include/asm-arm/arch-at91/cpu.h
  3. *
  4. * Copyright (C) 2006 SAN People
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. *
  11. */
  12. #ifndef __ASM_ARCH_CPU_H
  13. #define __ASM_ARCH_CPU_H
  14. #include <asm/hardware.h>
  15. #include <asm/arch/at91_dbgu.h>
  16. #define ARCH_ID_AT91RM9200 0x09290780
  17. #define ARCH_ID_AT91SAM9260 0x019803a0
  18. #define ARCH_ID_AT91SAM9261 0x019703a0
  19. #define ARCH_ID_AT91SAM9263 0x019607a0
  20. #define ARCH_ID_AT91SAM9XE128 0x329973a0
  21. #define ARCH_ID_AT91SAM9XE256 0x329a93a0
  22. #define ARCH_ID_AT91SAM9XE512 0x329aa3a0
  23. static inline unsigned long at91_cpu_identify(void)
  24. {
  25. return (at91_sys_read(AT91_DBGU_CIDR) & ~AT91_CIDR_VERSION);
  26. }
  27. #define ARCH_FAMILY_AT91X92 0x09200000
  28. #define ARCH_FAMILY_AT91SAM9 0x01900000
  29. #define ARCH_FAMILY_AT91SAM9XE 0x02900000
  30. static inline unsigned long at91_arch_identify(void)
  31. {
  32. return (at91_sys_read(AT91_DBGU_CIDR) & AT91_CIDR_ARCH);
  33. }
  34. #ifdef CONFIG_ARCH_AT91RM9200
  35. #define cpu_is_at91rm9200() (at91_cpu_identify() == ARCH_ID_AT91RM9200)
  36. #else
  37. #define cpu_is_at91rm9200() (0)
  38. #endif
  39. #ifdef CONFIG_ARCH_AT91SAM9260
  40. #define cpu_is_at91sam9xe() (at91_arch_identify() == ARCH_FAMILY_AT91SAM9XE)
  41. #define cpu_is_at91sam9260() ((at91_cpu_identify() == ARCH_ID_AT91SAM9260) || cpu_is_at91sam9xe())
  42. #else
  43. #define cpu_is_at91sam9xe() (0)
  44. #define cpu_is_at91sam9260() (0)
  45. #endif
  46. #ifdef CONFIG_ARCH_AT91SAM9261
  47. #define cpu_is_at91sam9261() (at91_cpu_identify() == ARCH_ID_AT91SAM9261)
  48. #else
  49. #define cpu_is_at91sam9261() (0)
  50. #endif
  51. #ifdef CONFIG_ARCH_AT91SAM9263
  52. #define cpu_is_at91sam9263() (at91_cpu_identify() == ARCH_ID_AT91SAM9263)
  53. #else
  54. #define cpu_is_at91sam9263() (0)
  55. #endif
  56. #endif