target/linux/atheros/files/include/asm-mips/mach-atheros/cpu-feature-overrides.h

   1 /*
   2  *  Atheros 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_ATHEROS_CPU_FEATURE_OVERRIDES_H
  16 #define __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H
  17
  18 /*
  19  * The ATHEROS 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_watch                ? */
  31 /* #define cpu_has_divec                ? */
  32 /* #define cpu_has_vce                  ? */
  33 /* #define cpu_has_cache_cdex_p         ? */
  34 /* #define cpu_has_cache_cdex_s         ? */
  35 /* #define cpu_has_prefetch             ? */
  36 /* #define cpu_has_mcheck               ? */
  37 #define cpu_has_ejtag                   1
  38
  39 #if !defined(CONFIG_ATHEROS_AR5312)
  40 #  define cpu_has_llsc                  1
  41 #else
  42 /*
  43  * The MIPS 4Kc V0.9 core in the AR5312/AR2312 have problems with the
  44  * ll/sc instructions.
  45  */
  46 #  define cpu_has_llsc                  0
  47 #endif
  48
  49 #define cpu_has_mips16                  0
  50 #define cpu_has_mdmx                    0
  51 #define cpu_has_mips3d                  0
  52 #define cpu_has_smartmips               0
  53
  54 /* #define cpu_has_vtag_icache          ? */
  55 /* #define cpu_has_dc_aliases           ? */
  56 /* #define cpu_has_ic_fills_f_dc        ? */
  57 /* #define cpu_has_pindexed_dcache      ? */
  58
  59 /* #define cpu_icache_snoops_remote_store       ? */
  60
  61 #define cpu_has_mips32r1                1
  62
  63 #if !defined(CONFIG_ATHEROS_AR5312)
  64 #  define cpu_has_mips32r2              1
  65 #endif
  66
  67 #define cpu_has_mips64r1                0
  68 #define cpu_has_mips64r2                0
  69
  70 #define cpu_has_dsp                     0
  71 #define cpu_has_mipsmt                  0
  72
  73 /* #define cpu_has_nofpuex              ? */
  74 #define cpu_has_64bits                  0
  75 #define cpu_has_64bit_zero_reg          0
  76 #define cpu_has_64bit_gp_regs           0
  77 #define cpu_has_64bit_addresses         0
  78
  79 /* #define cpu_has_inclusive_pcaches    ? */
  80
  81 /* #define cpu_dcache_line_size()       ? */
  82 /* #define cpu_icache_line_size()       ? */
  83
  84 #endif /* __ASM_MACH_ATHEROS_CPU_FEATURE_OVERRIDES_H */