1 files changed, 25 insertions, 5 deletions

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 758ad426c57f..be5bb16be4e0 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -162,6 +162,7 @@ void __init check_wait(void)
         case CPU_BCM6348:
         case CPU_BCM6358:
         case CPU_CAVIUM_OCTEON:
+        case CPU_CAVIUM_OCTEON_PLUS:
                 cpu_wait = r4k_wait;
                 break;
 
@@ -700,6 +701,19 @@ static inline unsigned int decode_config3(struct cpuinfo_mips *c)
         return config3 & MIPS_CONF_M;
 }
 
+static inline unsigned int decode_config4(struct cpuinfo_mips *c)
+{
+        unsigned int config4;
+
+        config4 = read_c0_config4();
+
+        if ((config4 & MIPS_CONF4_MMUEXTDEF) == MIPS_CONF4_MMUEXTDEF_MMUSIZEEXT
+            && cpu_has_tlb)
+                c->tlbsize += (config4 & MIPS_CONF4_MMUSIZEEXT) * 0x40;
+
+        return config4 & MIPS_CONF_M;
+}
+
 static void __cpuinit decode_configs(struct cpuinfo_mips *c)
 {
         int ok;
@@ -718,6 +732,8 @@ static void __cpuinit decode_configs(struct cpuinfo_mips *c)
                 ok = decode_config2(c);
         if (ok)
                 ok = decode_config3(c);
+        if (ok)
+                ok = decode_config4(c);
 
         mips_probe_watch_registers(c);
 }
@@ -731,9 +747,6 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu)
                 __cpu_name[cpu] = "MIPS 4Kc";
                 break;
         case PRID_IMP_4KEC:
-                c->cputype = CPU_4KEC;
-                __cpu_name[cpu] = "MIPS 4KEc";
-                break;
         case PRID_IMP_4KECR2:
                 c->cputype = CPU_4KEC;
                 __cpu_name[cpu] = "MIPS 4KEc";
@@ -899,12 +912,18 @@ static inline void cpu_probe_cavium(struct cpuinfo_mips *c, unsigned int cpu)
         case PRID_IMP_CAVIUM_CN38XX:
         case PRID_IMP_CAVIUM_CN31XX:
         case PRID_IMP_CAVIUM_CN30XX:
+                c->cputype = CPU_CAVIUM_OCTEON;
+                __cpu_name[cpu] = "Cavium Octeon";
+                goto platform;
         case PRID_IMP_CAVIUM_CN58XX:
         case PRID_IMP_CAVIUM_CN56XX:
         case PRID_IMP_CAVIUM_CN50XX:
         case PRID_IMP_CAVIUM_CN52XX:
-                c->cputype = CPU_CAVIUM_OCTEON;
-                __cpu_name[cpu] = "Cavium Octeon";
+                c->cputype = CPU_CAVIUM_OCTEON_PLUS;
+                __cpu_name[cpu] = "Cavium Octeon+";
+platform:
+                if (cpu == 0)
+                        __elf_platform = "octeon";
                 break;
         default:
                 printk(KERN_INFO "Unknown Octeon chip!\n");
@@ -914,6 +933,7 @@ static inline void cpu_probe_cavium(struct cpuinfo_mips *c, unsigned int cpu)
 }
 
 const char *__cpu_name[NR_CPUS];
+const char *__elf_platform;
 
 __cpuinit void cpu_probe(void)
 {