diff options
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 30 |
1 files changed, 25 insertions, 5 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 758ad426c57..be5bb16be4e 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) { |