openwrt-xburst/package/linux/kernel-patches/007-arch_mips_kernel_cpu-probe_c

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