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| author | Marc St-Jean <stjeanma@pmc-sierra.com> | 2007-06-14 23:55:31 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2007-07-10 18:33:03 +0200 |
| commit | 9267a30d1dc7dcd7cadb5eb6a5bbfed703feeefa (patch) | |
| tree | 91fa5a1a4605cdf0a1f1db21e22073b87735ce7a /arch/mips/kernel/cpu-probe.c | |
| parent | [MIPS] PMC MSP71xx core platform (diff) | |
| download | linux-9267a30d1dc7dcd7cadb5eb6a5bbfed703feeefa.tar.xz linux-9267a30d1dc7dcd7cadb5eb6a5bbfed703feeefa.zip | |
[MIPS] PMC MSP71xx mips common
Patch to add mips common support for the PMC-Sierra MSP71xx devices.
Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
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 | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 23d8a3b7dd75..c6b8b074a81a 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -186,9 +186,29 @@ static inline void check_wait(void) } } +static inline void check_errata(void) +{ + struct cpuinfo_mips *c = ¤t_cpu_data; + + switch (c->cputype) { + case CPU_34K: + /* + * Erratum "RPS May Cause Incorrect Instruction Execution" + * This code only handles VPE0, any SMP/SMTC/RTOS code + * making use of VPE1 will be responsable for that VPE. + */ + if ((c->processor_id & PRID_REV_MASK) <= PRID_REV_34K_V1_0_2) + write_c0_config7(read_c0_config7() | MIPS_CONF7_RPS); + break; + default: + break; + } +} + void __init check_bugs32(void) { check_wait(); + check_errata(); } /* |