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| author | David Daney <ddaney@caviumnetworks.com> | 2008-12-11 15:33:26 -0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-01-11 09:57:22 +0000 |
| commit | 0dd4781bca56871434507ed35d5bb8ef92077907 (patch) | |
| tree | 70304b84fd7a264a4e1756c485ad5a0bf1630282 /arch/mips/kernel | |
| parent | 25c3000300163e2ebf68d94425088de35ead3d76 (diff) | |
| download | kernel-common-0dd4781bca56871434507ed35d5bb8ef92077907.tar.gz kernel-common-0dd4781bca56871434507ed35d5bb8ef92077907.tar.bz2 kernel-common-0dd4781bca56871434507ed35d5bb8ef92077907.zip | |
MIPS: Add Cavium OCTEON processor constants and CPU probe.
Add OCTEON constants to asm/cpu.h and asm/module.h.
Add probe function for Cavium OCTEON CPUs and hook it up.
Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index c9207b5fd923..6b3c63dd1818 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]); |