diff options
| -rw-r--r-- | arch/mips/include/asm/cpu.h | 14 | ||||
| -rw-r--r-- | arch/mips/include/asm/module.h | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 25 |
3 files changed, 41 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index 229a786101d..c018727c7dd 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -33,6 +33,7 @@ #define PRID_COMP_TOSHIBA 0x070000 #define PRID_COMP_LSI 0x080000 #define PRID_COMP_LEXRA 0x0b0000 +#define PRID_COMP_CAVIUM 0x0d0000 /* @@ -114,6 +115,18 @@ #define PRID_IMP_BCM3302 0x9000 /* + * These are the PRID's for when 23:16 == PRID_COMP_CAVIUM + */ + +#define PRID_IMP_CAVIUM_CN38XX 0x0000 +#define PRID_IMP_CAVIUM_CN31XX 0x0100 +#define PRID_IMP_CAVIUM_CN30XX 0x0200 +#define PRID_IMP_CAVIUM_CN58XX 0x0300 +#define PRID_IMP_CAVIUM_CN56XX 0x0400 +#define PRID_IMP_CAVIUM_CN50XX 0x0600 +#define PRID_IMP_CAVIUM_CN52XX 0x0700 + +/* * Definitions for 7:0 on legacy processors */ @@ -203,6 +216,7 @@ enum cpu_type_enum { * MIPS64 class processors */ CPU_5KC, CPU_20KC, CPU_25KF, CPU_SB1, CPU_SB1A, CPU_LOONGSON2, + CPU_CAVIUM_OCTEON, CPU_LAST }; diff --git a/arch/mips/include/asm/module.h b/arch/mips/include/asm/module.h index e2e09b2cd26..d94085a3eaf 100644 --- a/arch/mips/include/asm/module.h +++ b/arch/mips/include/asm/module.h @@ -116,6 +116,8 @@ search_module_dbetables(unsigned long addr) #define MODULE_PROC_FAMILY "SB1 " #elif defined CONFIG_CPU_LOONGSON2 #define MODULE_PROC_FAMILY "LOONGSON2 " +#elif defined CONFIG_CPU_CAVIUM_OCTEON +#define MODULE_PROC_FAMILY "OCTEON " #else #error MODULE_PROC_FAMILY undefined for your processor configuration #endif diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index c9207b5fd92..6b3c63dd181 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -154,6 +154,7 @@ void __init check_wait(void) case CPU_25KF: case CPU_PR4450: case CPU_BCM3302: + case CPU_CAVIUM_OCTEON: cpu_wait = r4k_wait; break; @@ -875,6 +876,27 @@ static inline void cpu_probe_broadcom(struct cpuinfo_mips *c, unsigned int cpu) } } +static inline void cpu_probe_cavium(struct cpuinfo_mips *c, unsigned int cpu) +{ + decode_configs(c); + switch (c->processor_id & 0xff00) { + case PRID_IMP_CAVIUM_CN38XX: + case PRID_IMP_CAVIUM_CN31XX: + case PRID_IMP_CAVIUM_CN30XX: + 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"; + break; + default: + printk(KERN_INFO "Unknown Octeon chip!\n"); + c->cputype = CPU_UNKNOWN; + break; + } +} + const char *__cpu_name[NR_CPUS]; __cpuinit void cpu_probe(void) @@ -909,6 +931,9 @@ __cpuinit void cpu_probe(void) case PRID_COMP_NXP: cpu_probe_nxp(c, cpu); break; + case PRID_COMP_CAVIUM: + cpu_probe_cavium(c, cpu); + break; } BUG_ON(!__cpu_name[cpu]); |