org.handhelds.familiar/packages/linux/linux-wrt-2.4.30/007-arch_mips_kernel_cpu-probe_c

   1 --- linux-mips-cvs/arch/mips/kernel/cpu-probe.c 2005-01-31 12:59:30.000000000 +0100
   2 +++ linux-broadcom/arch/mips/kernel/cpu-probe.c 2005-01-31 13:13:14.000000000 +0100
   3 @@ -175,7 +175,7 @@
   4
   5  static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
   6  {
   7 -       switch (c->processor_id & 0xff00) {
   8 +       switch (c->processor_id & PRID_IMP_MASK) {
   9         case PRID_IMP_R2000:
  10                 c->cputype = CPU_R2000;
  11                 c->isa_level = MIPS_CPU_ISA_I;
  12 @@ -185,7 +185,7 @@
  13                 c->tlbsize = 64;
  14                 break;
  15         case PRID_IMP_R3000:
  16 -               if ((c->processor_id & 0xff) == PRID_REV_R3000A)
  17 +               if ((c->processor_id & PRID_REV_MASK) == PRID_REV_R3000A)
  18                         if (cpu_has_confreg())
  19                                 c->cputype = CPU_R3081E;
  20                         else
  21 @@ -200,12 +200,12 @@
  22                 break;
  23         case PRID_IMP_R4000:
  24                 if (read_c0_config() & CONF_SC) {
  25 -                       if ((c->processor_id & 0xff) >= PRID_REV_R4400)
  26 +                       if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_R4400)
  27                                 c->cputype = CPU_R4400PC;
  28                         else
  29                                 c->cputype = CPU_R4000PC;
  30                 } else {
  31 -                       if ((c->processor_id & 0xff) >= PRID_REV_R4400)
  32 +                       if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_R4400)
  33                                 c->cputype = CPU_R4400SC;
  34                         else
  35                                 c->cputype = CPU_R4000SC;
  36 @@ -451,7 +451,7 @@
  37  static inline void cpu_probe_mips(struct cpuinfo_mips *c)
  38  {
  39         decode_config1(c);
  40 -       switch (c->processor_id & 0xff00) {
  41 +       switch (c->processor_id & PRID_IMP_MASK) {
  42         case PRID_IMP_4KC:
  43                 c->cputype = CPU_4KC;
  44                 c->isa_level = MIPS_CPU_ISA_M32;
  45 @@ -492,10 +492,10 @@
  46  {
  47         decode_config1(c);
  48         c->options |= MIPS_CPU_PREFETCH;
  49 -       switch (c->processor_id & 0xff00) {
  50 +       switch (c->processor_id & PRID_IMP_MASK) {
  51         case PRID_IMP_AU1_REV1:
  52         case PRID_IMP_AU1_REV2:
  53 -               switch ((c->processor_id >> 24) & 0xff) {
  54 +               switch ((c->processor_id >> 24) & PRID_REV_MASK) {
  55                 case 0:
  56                         c->cputype = CPU_AU1000;
  57                         break;
  58 @@ -523,10 +523,34 @@
  59         }
  60  }
  61
  62 +static inline void cpu_probe_broadcom(struct cpuinfo_mips *c)
  63 +{
  64 +       decode_config1(c);
  65 +       c->options |= MIPS_CPU_PREFETCH;
  66 +       switch (c->processor_id & PRID_IMP_MASK) {
  67 +       case PRID_IMP_BCM4710:
  68 +                       c->cputype = CPU_BCM4710;
  69 +                       c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
  70 +                                                               MIPS_CPU_4KTLB | MIPS_CPU_COUNTER;
  71 +                       c->scache.flags = MIPS_CACHE_NOT_PRESENT;
  72 +                       break;
  73 +       case PRID_IMP_4KC:
  74 +       case PRID_IMP_BCM3302:
  75 +                       c->cputype = CPU_BCM3302;
  76 +                       c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
  77 +                                                               MIPS_CPU_4KTLB | MIPS_CPU_COUNTER;
  78 +                       c->scache.flags = MIPS_CACHE_NOT_PRESENT;
  79 +                       break;
  80 +       default:
  81 +                       c->cputype = CPU_UNKNOWN;
  82 +                       break;
  83 +       }
  84 +}
  85 +
  86  static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
  87  {
  88         decode_config1(c);
  89 -       switch (c->processor_id & 0xff00) {
  90 +       switch (c->processor_id & PRID_IMP_MASK) {
  91         case PRID_IMP_SB1:
  92                 c->cputype = CPU_SB1;
  93                 c->isa_level = MIPS_CPU_ISA_M64;
  94 @@ -548,7 +572,7 @@
  95  static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c)
  96  {
  97         decode_config1(c);
  98 -       switch (c->processor_id & 0xff00) {
  99 +       switch (c->processor_id & PRID_IMP_MASK) {
 100         case PRID_IMP_SR71000:
 101                 c->cputype = CPU_SR71000;
 102                 c->isa_level = MIPS_CPU_ISA_M64;
 103 @@ -573,7 +597,7 @@
 104         c->cputype      = CPU_UNKNOWN;
 105
 106         c->processor_id = read_c0_prid();
 107 -       switch (c->processor_id & 0xff0000) {
 108 +       switch (c->processor_id & PRID_COMP_MASK) {
 109
 110         case PRID_COMP_LEGACY:
 111                 cpu_probe_legacy(c);
 112 @@ -584,6 +608,9 @@
 113         case PRID_COMP_ALCHEMY:
 114                 cpu_probe_alchemy(c);
 115                 break;
 116 +       case PRID_COMP_BROADCOM:
 117 +               cpu_probe_broadcom(c);
 118 +               break;
 119         case PRID_COMP_SIBYTE:
 120                 cpu_probe_sibyte(c);
 121                 break;