diff options
| author |   Joshua Kinard <kumba@gentoo.org> | 2015-01-21 07:59:45 -0500 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2015-04-01 17:22:13 +0200 |
| commit | 3057739138eb8fbaa5154b149a864f5218898c73 (patch) | |
| tree | f9544e76cc2afad7333aa07ac3d7842bb2d149dc /arch/mips/kernel/cpu-probe.c | |
| parent | CLOCKSOURCE: mips-gic: Allow GIC clock to be specified in device-tree (diff) | |
| download | linux-dev-3057739138eb8fbaa5154b149a864f5218898c73.tar.xz linux-dev-3057739138eb8fbaa5154b149a864f5218898c73.zip | |
MIPS: Add R16000 detection
This allows the kernel to correctly detect an R16000 MIPS CPU on systems that
have those. Otherwise, such systems will detect the CPU as an R14000, due to
similarities in the CPU PRId value.
Signed-off-by: Joshua Kinard <kumba@gentoo.org>
Cc: Linux MIPS List <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/9092/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel/cpu-probe.c')
| -rw-r--r-- | arch/mips/kernel/cpu-probe.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 1bae00678b9b..cb436f585bfa 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -852,8 +852,13 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu) c->tlbsize = 64; break; case PRID_IMP_R14000: - c->cputype = CPU_R14000; - __cpu_name[cpu] = "R14000"; + if (((c->processor_id >> 4) & 0x0f) > 2) { + c->cputype = CPU_R16000; + __cpu_name[cpu] = "R16000"; + } else { + c->cputype = CPU_R14000; + __cpu_name[cpu] = "R14000"; + } set_isa(c, MIPS_CPU_ISA_IV); c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX | MIPS_CPU_FPU | MIPS_CPU_32FPR | |