arch/mips/include/asm/mach-ath25/cpu-feature-overrides.h

   1 /*
   2  *  Atheros AR231x/AR531x SoC specific CPU feature overrides
   3  *
   4  *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
   5  *
   6  *  This file was derived from: include/asm-mips/cpu-features.h
   7  *      Copyright (C) 2003, 2004 Ralf Baechle
   8  *      Copyright (C) 2004 Maciej W. Rozycki
   9  *
  10  *  This program is free software; you can redistribute it and/or modify it
  11  *  under the terms of the GNU General Public License version 2 as published
  12  *  by the Free Software Foundation.
  13  *
  14  */
  15 #ifndef __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H
  16 #define __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H
  17
  18 /*
  19  * The Atheros AR531x/AR231x SoCs have MIPS 4Kc/4KEc core.
  20  */
  21 #define cpu_has_tlb                     1
  22 #define cpu_has_4kex                    1
  23 #define cpu_has_3k_cache                0
  24 #define cpu_has_4k_cache                1
  25 #define cpu_has_tx39_cache              0
  26 #define cpu_has_sb1_cache               0
  27 #define cpu_has_fpu                     0
  28 #define cpu_has_32fpr                   0
  29 #define cpu_has_counter                 1
  30 #define cpu_has_ejtag                   1
  31
  32 #if !defined(CONFIG_SOC_AR5312)
  33 #  define cpu_has_llsc                  1
  34 #else
  35 /*
  36  * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
  37  * ll/sc instructions.
  38  */
  39 #  define cpu_has_llsc                  0
  40 #endif
  41
  42 #define cpu_has_mips16                  0
  43 #define cpu_has_mdmx                    0
  44 #define cpu_has_mips3d                  0
  45 #define cpu_has_smartmips               0
  46
  47 #define cpu_has_mips32r1                1
  48
  49 #if !defined(CONFIG_SOC_AR5312)
  50 #  define cpu_has_mips32r2              1
  51 #endif
  52
  53 #define cpu_has_mips64r1                0
  54 #define cpu_has_mips64r2                0
  55
  56 #define cpu_has_dsp                     0
  57 #define cpu_has_mipsmt                  0
  58
  59 #define cpu_has_64bits                  0
  60 #define cpu_has_64bit_zero_reg          0
  61 #define cpu_has_64bit_gp_regs           0
  62 #define cpu_has_64bit_addresses         0
  63
  64 #endif /* __ASM_MACH_ATH25_CPU_FEATURE_OVERRIDES_H */