cpu-feature-overrides.h 1.4 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /*
  3. * Atheros AR231x/AR531x SoC specific CPU feature overrides
  4. *
  5. * Copyright (C) 2008 Gabor Juhos <[email protected]>
  6. *
  7. * This file was derived from: include/asm-mips/cpu-features.h
  8. * Copyright (C) 2003, 2004 Ralf Baechle
  9. * Copyright (C) 2004 Maciej W. Rozycki
  10. */
  11. #ifndef __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H
  12. #define __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H
  13. /*
  14. * The Atheros AR531x/AR231x SoCs have MIPS 4Kc/4KEc core.
  15. */
  16. #define cpu_has_tlb 1
  17. #define cpu_has_4kex 1
  18. #define cpu_has_3k_cache 0
  19. #define cpu_has_4k_cache 1
  20. #define cpu_has_sb1_cache 0
  21. #define cpu_has_fpu 0
  22. #define cpu_has_32fpr 0
  23. #define cpu_has_counter 1
  24. #define cpu_has_ejtag 1
  25. #if !defined(CONFIG_SOC_AR5312)
  26. # define cpu_has_llsc 1
  27. #else
  28. /*
  29. * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
  30. * ll/sc instructions.
  31. */
  32. # define cpu_has_llsc 0
  33. #endif
  34. #define cpu_has_mips16 0
  35. #define cpu_has_mips16e2 0
  36. #define cpu_has_mdmx 0
  37. #define cpu_has_mips3d 0
  38. #define cpu_has_smartmips 0
  39. #define cpu_has_mips32r1 1
  40. #if !defined(CONFIG_SOC_AR5312)
  41. # define cpu_has_mips32r2 1
  42. #endif
  43. #define cpu_has_mips64r1 0
  44. #define cpu_has_mips64r2 0
  45. #define cpu_has_dsp 0
  46. #define cpu_has_mipsmt 0
  47. #define cpu_has_64bits 0
  48. #define cpu_has_64bit_zero_reg 0
  49. #define cpu_has_64bit_gp_regs 0
  50. #endif /* __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H */