kernel/linux/include/asm-mips/cpu.h

   1 /*
   2  * cpu.h: Values of the PRId register used to match up
   3  *        various MIPS cpu types.
   4  *
   5  * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
   6  */
   7 #ifndef _ASM_CPU_H
   8 #define _ASM_CPU_H
   9
  10 /* Assigned Company values for bits 23:16 of the PRId Register
  11    (CP0 register 15, select 0).  As of the MIPS32 and MIPS64 specs from
  12    MTI, the PRId register is defined in this (backwards compatible)
  13    way:
  14
  15   +----------------+----------------+----------------+----------------+
  16   | Company Options| Company ID     | Processor ID   | Revision       |
  17   +----------------+----------------+----------------+----------------+
  18    31            24 23            16 15             8 7
  19
  20    I don't have docs for all the previous processors, but my impression is
  21    that bits 16-23 have been 0 for all MIPS processors before the MIPS32/64
  22    spec.
  23 */
  24
  25 #define PRID_COMP_LEGACY       0x000000
  26 #define PRID_COMP_MIPS         0x010000
  27 #define PRID_COMP_BROADCOM     0x020000
  28 #define PRID_COMP_ALCHEMY      0x030000
  29 #define PRID_COMP_SIBYTE       0x040000
  30 #define PRID_COMP_SANDCRAFT    0x050000
  31
  32 /*
  33  * Assigned values for the product ID register.  In order to detect a
  34  * certain CPU type exactly eventually additional registers may need to
  35  * be examined.  These are valid when 23:16 == PRID_COMP_LEGACY
  36  */
  37 #define PRID_IMP_R2000          0x0100
  38 #define PRID_IMP_AU1_REV1       0x0100
  39 #define PRID_IMP_AU1_REV2       0x0200
  40 #define PRID_IMP_R3000          0x0200          /* Same as R2000A  */
  41 #define PRID_IMP_R6000          0x0300          /* Same as R3000A  */
  42 #define PRID_IMP_R4000          0x0400
  43 #define PRID_IMP_R6000A         0x0600
  44 #define PRID_IMP_R10000         0x0900
  45 #define PRID_IMP_R4300          0x0b00
  46 #define PRID_IMP_VR41XX         0x0c00
  47 #define PRID_IMP_R12000         0x0e00
  48 #define PRID_IMP_R8000          0x1000
  49 #define PRID_IMP_R4600          0x2000
  50 #define PRID_IMP_R4700          0x2100
  51 #define PRID_IMP_TX39           0x2200
  52 #define PRID_IMP_R4640          0x2200
  53 #define PRID_IMP_R4650          0x2200          /* Same as R4640 */
  54 #define PRID_IMP_R5000          0x2300
  55 #define PRID_IMP_TX49           0x2d00
  56 #define PRID_IMP_SONIC          0x2400
  57 #define PRID_IMP_MAGIC          0x2500
  58 #define PRID_IMP_RM7000         0x2700
  59 #define PRID_IMP_NEVADA         0x2800          /* RM5260 ??? */
  60 #define PRID_IMP_RM9000         0x3400
  61 #define PRID_IMP_R5432          0x5400
  62 #define PRID_IMP_R5500          0x5500
  63 #define PRID_IMP_4KC            0x8000
  64 #define PRID_IMP_5KC            0x8100
  65 #define PRID_IMP_20KC           0x8200
  66 #define PRID_IMP_4KEC           0x8400
  67 #define PRID_IMP_4KSC           0x8600
  68 #define PRID_IMP_25KF           0x8800
  69 #define PRID_IMP_5KE            0x8900
  70 #define PRID_IMP_4KECR2         0x9000
  71 #define PRID_IMP_4KEMPR2        0x9100
  72 #define PRID_IMP_4KSD           0x9200
  73 #define PRID_IMP_24K            0x9300
  74 #if defined(CONFIG_MIPS_BRCM)
  75 #define PRID_IMP_BCM6338        0x9000
  76 #define PRID_IMP_BCM6348        0x9100
  77 #define PRID_IMP_BCM6358        0xA000
  78 #endif
  79
  80 #define PRID_IMP_UNKNOWN        0xff00
  81
  82 /*
  83  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
  84  */
  85
  86 #define PRID_IMP_SB1            0x0100
  87
  88 /*
  89  * These are the PRID's for when 23:16 == PRID_COMP_SANDCRAFT
  90  */
  91
  92 #define PRID_IMP_SR71000        0x0400
  93
  94 /*
  95  * Definitions for 7:0 on legacy processors
  96  */
  97
  98
  99 #define PRID_REV_TX4927         0x0022
 100 #define PRID_REV_TX4937         0x0030
 101 #define PRID_REV_R4400          0x0040
 102 #define PRID_REV_R3000A         0x0030
 103 #define PRID_REV_R3000          0x0020
 104 #define PRID_REV_R2000A         0x0010
 105 #define PRID_REV_TX3912         0x0010
 106 #define PRID_REV_TX3922         0x0030
 107 #define PRID_REV_TX3927         0x0040
 108 #define PRID_REV_VR4111         0x0050
 109 #define PRID_REV_VR4181         0x0050  /* Same as VR4111 */
 110 #define PRID_REV_VR4121         0x0060
 111 #define PRID_REV_VR4122         0x0070
 112 #define PRID_REV_VR4181A        0x0070  /* Same as VR4122 */
 113 #define PRID_REV_VR4130         0x0080
 114
 115 /*
 116  * FPU implementation/revision register (CP1 control register 0).
 117  *
 118  * +---------------------------------+----------------+----------------+
 119  * | 0                               | Implementation | Revision       |
 120  * +---------------------------------+----------------+----------------+
 121  *  31                             16 15             8 7              0
 122  */
 123
 124 #define FPIR_IMP_NONE           0x0000
 125
 126 #define CPU_UNKNOWN              0
 127 #define CPU_R2000                1
 128 #define CPU_R3000                2
 129 #define CPU_R3000A               3
 130 #define CPU_R3041                4
 131 #define CPU_R3051                5
 132 #define CPU_R3052                6
 133 #define CPU_R3081                7
 134 #define CPU_R3081E               8
 135 #define CPU_R4000PC              9
 136 #define CPU_R4000SC             10
 137 #define CPU_R4000MC             11
 138 #define CPU_R4200               12
 139 #define CPU_R4400PC             13
 140 #define CPU_R4400SC             14
 141 #define CPU_R4400MC             15
 142 #define CPU_R4600               16
 143 #define CPU_R6000               17
 144 #define CPU_R6000A              18
 145 #define CPU_R8000               19
 146 #define CPU_R10000              20
 147 #define CPU_R12000              21
 148 #define CPU_R4300               22
 149 #define CPU_R4650               23
 150 #define CPU_R4700               24
 151 #define CPU_R5000               25
 152 #define CPU_R5000A              26
 153 #define CPU_R4640               27
 154 #define CPU_NEVADA              28
 155 #define CPU_RM7000              29
 156 #define CPU_R5432               30
 157 #define CPU_4KC                 31
 158 #define CPU_5KC                 32
 159 #define CPU_R4310               33
 160 #define CPU_SB1                 34
 161 #define CPU_TX3912              35
 162 #define CPU_TX3922              36
 163 #define CPU_TX3927              37
 164 #define CPU_AU1000              38
 165 #define CPU_4KEC                39
 166 #define CPU_4KSC                40
 167 #define CPU_VR41XX              41
 168 #define CPU_R5500               42
 169 #define CPU_TX49XX              43
 170 #define CPU_AU1500              44
 171 #define CPU_20KC                45
 172 #define CPU_VR4111              46
 173 #define CPU_VR4121              47
 174 #define CPU_VR4122              48
 175 #define CPU_VR4131              49
 176 #define CPU_VR4181              50
 177 #define CPU_VR4181A             51
 178 #define CPU_AU1100              52
 179 #define CPU_SR71000             53
 180 #define CPU_RM9000              54
 181 #define CPU_25KF                55
 182 #define CPU_VR4133              56
 183 #define CPU_AU1550              57
 184 #define CPU_24K                 58
 185 #if defined(CONFIG_MIPS_BRCM)
 186 #define CPU_BCM6338             59
 187 #define CPU_BCM6348             60
 188 #define CPU_BCM6358             61
 189 #define CPU_LAST                61
 190 #else
 191 #define CPU_LAST                58
 192 #endif
 193
 194 /*
 195  * ISA Level encodings
 196  *
 197  */
 198 #define MIPS_CPU_ISA_I          0x00000001
 199 #define MIPS_CPU_ISA_II         0x00000002
 200 #define MIPS_CPU_ISA_III        0x00008003
 201 #define MIPS_CPU_ISA_IV         0x00008004
 202 #define MIPS_CPU_ISA_V          0x00008005
 203 #define MIPS_CPU_ISA_M32        0x00000020
 204 #define MIPS_CPU_ISA_M64        0x00008040
 205
 206 /*
 207  * Bit 15 encodes if an ISA level supports 64-bit operations.
 208  */
 209 #define MIPS_CPU_ISA_64BIT      0x00008000
 210
 211 /*
 212  * CPU Option encodings
 213  */
 214 #define MIPS_CPU_TLB            0x00000001 /* CPU has TLB */
 215 /* Leave a spare bit for variant MMU types... */
 216 #define MIPS_CPU_4KEX           0x00000004 /* "R4K" exception model */
 217 #define MIPS_CPU_4KTLB          0x00000008 /* "R4K" TLB handler */
 218 #define MIPS_CPU_FPU            0x00000010 /* CPU has FPU */
 219 #define MIPS_CPU_32FPR          0x00000020 /* 32 dbl. prec. FP registers */
 220 #define MIPS_CPU_COUNTER        0x00000040 /* Cycle count/compare */
 221 #define MIPS_CPU_WATCH          0x00000080 /* watchpoint registers */
 222 #define MIPS_CPU_MIPS16         0x00000100 /* code compression */
 223 #define MIPS_CPU_DIVEC          0x00000200 /* dedicated interrupt vector */
 224 #define MIPS_CPU_VCE            0x00000400 /* virt. coherence conflict possible */
 225 #define MIPS_CPU_CACHE_CDEX_P   0x00000800 /* Create_Dirty_Exclusive CACHE op */
 226 #define MIPS_CPU_CACHE_CDEX_S   0x00001000 /* ... same for seconary cache ... */
 227 #define MIPS_CPU_MCHECK         0x00002000 /* Machine check exception */
 228 #define MIPS_CPU_EJTAG          0x00004000 /* EJTAG exception */
 229 #define MIPS_CPU_NOFPUEX        0x00008000 /* no FPU exception */
 230 #define MIPS_CPU_LLSC           0x00010000 /* CPU has ll/sc instructions */
 231 #define MIPS_CPU_SUBSET_CACHES  0x00020000 /* P-cache subset enforced */
 232 #define MIPS_CPU_PREFETCH       0x00040000 /* CPU has usable prefetch */
 233
 234 #endif /* _ASM_CPU_H */