mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-14 08:32:48 +02:00
122 lines
3.4 KiB
Plaintext
122 lines
3.4 KiB
Plaintext
--- linux-mips-cvs/arch/mips/kernel/cpu-probe.c 2005-01-31 12:59:30.000000000 +0100
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+++ linux-broadcom/arch/mips/kernel/cpu-probe.c 2005-01-31 13:13:14.000000000 +0100
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@@ -175,7 +175,7 @@
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static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
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{
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- switch (c->processor_id & 0xff00) {
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+ switch (c->processor_id & PRID_IMP_MASK) {
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case PRID_IMP_R2000:
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c->cputype = CPU_R2000;
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c->isa_level = MIPS_CPU_ISA_I;
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@@ -185,7 +185,7 @@
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c->tlbsize = 64;
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break;
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case PRID_IMP_R3000:
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- if ((c->processor_id & 0xff) == PRID_REV_R3000A)
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+ if ((c->processor_id & PRID_REV_MASK) == PRID_REV_R3000A)
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if (cpu_has_confreg())
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c->cputype = CPU_R3081E;
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else
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@@ -200,12 +200,12 @@
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break;
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case PRID_IMP_R4000:
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if (read_c0_config() & CONF_SC) {
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- if ((c->processor_id & 0xff) >= PRID_REV_R4400)
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+ if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_R4400)
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c->cputype = CPU_R4400PC;
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else
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c->cputype = CPU_R4000PC;
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} else {
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- if ((c->processor_id & 0xff) >= PRID_REV_R4400)
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+ if ((c->processor_id & PRID_REV_MASK) >= PRID_REV_R4400)
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c->cputype = CPU_R4400SC;
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else
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c->cputype = CPU_R4000SC;
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@@ -451,7 +451,7 @@
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static inline void cpu_probe_mips(struct cpuinfo_mips *c)
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{
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decode_config1(c);
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- switch (c->processor_id & 0xff00) {
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+ switch (c->processor_id & PRID_IMP_MASK) {
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case PRID_IMP_4KC:
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c->cputype = CPU_4KC;
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c->isa_level = MIPS_CPU_ISA_M32;
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@@ -492,10 +492,10 @@
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{
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decode_config1(c);
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c->options |= MIPS_CPU_PREFETCH;
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- switch (c->processor_id & 0xff00) {
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+ switch (c->processor_id & PRID_IMP_MASK) {
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case PRID_IMP_AU1_REV1:
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case PRID_IMP_AU1_REV2:
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- switch ((c->processor_id >> 24) & 0xff) {
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+ switch ((c->processor_id >> 24) & PRID_REV_MASK) {
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case 0:
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c->cputype = CPU_AU1000;
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break;
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@@ -523,10 +523,34 @@
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}
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}
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+static inline void cpu_probe_broadcom(struct cpuinfo_mips *c)
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+{
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+ decode_config1(c);
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+ c->options |= MIPS_CPU_PREFETCH;
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+ switch (c->processor_id & PRID_IMP_MASK) {
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+ case PRID_IMP_BCM4710:
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+ c->cputype = CPU_BCM4710;
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+ c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
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+ MIPS_CPU_4KTLB | MIPS_CPU_COUNTER;
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+ c->scache.flags = MIPS_CACHE_NOT_PRESENT;
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+ break;
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+ case PRID_IMP_4KC:
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+ case PRID_IMP_BCM3302:
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+ c->cputype = CPU_BCM3302;
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+ c->options = MIPS_CPU_TLB | MIPS_CPU_4KEX |
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+ MIPS_CPU_4KTLB | MIPS_CPU_COUNTER;
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+ c->scache.flags = MIPS_CACHE_NOT_PRESENT;
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+ break;
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+ default:
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+ c->cputype = CPU_UNKNOWN;
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+ break;
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+ }
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+}
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+
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static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
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{
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decode_config1(c);
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- switch (c->processor_id & 0xff00) {
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+ switch (c->processor_id & PRID_IMP_MASK) {
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case PRID_IMP_SB1:
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c->cputype = CPU_SB1;
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c->isa_level = MIPS_CPU_ISA_M64;
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@@ -548,7 +572,7 @@
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static inline void cpu_probe_sandcraft(struct cpuinfo_mips *c)
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{
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decode_config1(c);
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- switch (c->processor_id & 0xff00) {
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+ switch (c->processor_id & PRID_IMP_MASK) {
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case PRID_IMP_SR71000:
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c->cputype = CPU_SR71000;
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c->isa_level = MIPS_CPU_ISA_M64;
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@@ -573,7 +597,7 @@
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c->cputype = CPU_UNKNOWN;
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c->processor_id = read_c0_prid();
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- switch (c->processor_id & 0xff0000) {
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+ switch (c->processor_id & PRID_COMP_MASK) {
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case PRID_COMP_LEGACY:
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cpu_probe_legacy(c);
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@@ -584,6 +608,9 @@
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case PRID_COMP_ALCHEMY:
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cpu_probe_alchemy(c);
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break;
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+ case PRID_COMP_BROADCOM:
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+ cpu_probe_broadcom(c);
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+ break;
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case PRID_COMP_SIBYTE:
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cpu_probe_sibyte(c);
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break;
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