diff options
| author | Arne Georg Gleditsch <arne.gleditsch@numascale.com> | 2010-09-17 00:13:52 +0000 |
|---|---|---|
| committer | Marc Jones <marc.jones@amd.com> | 2010-09-17 00:13:52 +0000 |
| commit | 01d56d4276c800f4aa53acd657aed24676a52f4d (patch) | |
| tree | adc2356866a07e7d3f429b6e15feedbeb532bc01 | |
| parent | 8985ef179be85eda9cc10b23f9c143a47e56a2f7 (diff) | |
Clear bit 35 of msr c001_102a in Fam10 rev C cores.
Signed-off-by: Arne Georg Gleditsch <arne.gleditsch@numascale.com>
Acked-by: Scott Duplichan <scott@notabs.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5817 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
| -rw-r--r-- | src/cpu/amd/model_10xxx/defaults.h | 2 | ||||
| -rw-r--r-- | src/cpu/amd/model_10xxx/model_10xxx_init.c | 4 |
2 files changed, 4 insertions, 2 deletions
diff --git a/src/cpu/amd/model_10xxx/defaults.h b/src/cpu/amd/model_10xxx/defaults.h index 2fbfbb26fc..9a0e349e0a 100644 --- a/src/cpu/amd/model_10xxx/defaults.h +++ b/src/cpu/amd/model_10xxx/defaults.h @@ -91,7 +91,7 @@ static const struct { { BU_CFG2, AMD_DRBH_Cx , AMD_PTYPE_ALL, 0x00000000, 1 << (35-32), - 0x00000000, 1 << (35-32) }, /* Erratum 343 (set to 0 after CAR, in post_cache_as_ram() ) */ + 0x00000000, 1 << (35-32) }, /* Erratum 343 (set to 0 after CAR, in post_cache_as_ram()/model_10xxx_init() ) */ }; diff --git a/src/cpu/amd/model_10xxx/model_10xxx_init.c b/src/cpu/amd/model_10xxx/model_10xxx_init.c index 6f61fc37fd..a0e1f6fdbe 100644 --- a/src/cpu/amd/model_10xxx/model_10xxx_init.c +++ b/src/cpu/amd/model_10xxx/model_10xxx_init.c @@ -113,9 +113,11 @@ static void model_10xxx_init(device_t dev) msr.hi &= ~(1 << (46 - 32)); wrmsr(NB_CFG_MSR, msr); - /* Clear ClLinesToNbDis */ msr = rdmsr(BU_CFG2_MSR); + /* Clear ClLinesToNbDis */ msr.lo &= ~(1 << 15); + /* Clear bit 35 as per Erratum 343 */ + msr.hi &= ~(1 << (35-32)); wrmsr(BU_CFG2_MSR, msr); /* Write protect SMM space with SMMLOCK. */ |