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| author | Arne Georg Gleditsch <arne.gleditsch@numascale.com> | 2010-09-13 15:11:35 +0000 |
|---|---|---|
| committer | Myles Watson <mylesgw@gmail.com> | 2010-09-13 15:11:35 +0000 |
| commit | e7a5b76a748a27b033122b55356661b79839874c (patch) | |
| tree | 586b516fe026b39a719f1c54cd04c4ced0b00878 /src/cpu/amd/car | |
| parent | d09d1f7846d546f1790cd9db107014ffec92cc27 (diff) | |
| download | coreboot-e7a5b76a748a27b033122b55356661b79839874c.tar.xz | |
Move initialization of MMCONF BAR to cache_as_ram setup phase, in order
to make sure MMCONF is set up before use. Otherwise, PCI config
accesses run before init_cpus() will be lost if MMCONF is enabled
(unless explicitly done as port-based accesses).
This obsoletes removal of RES_PCI_IO, PCI_ADDR(0, 1, 0, 0x78) in
mcp55_early_setup, so reinsert.
Signed-off-by: Arne Georg Gleditsch <arne.gleditsch@numascale.com>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5810 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/amd/car')
| -rw-r--r-- | src/cpu/amd/car/cache_as_ram.inc | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/src/cpu/amd/car/cache_as_ram.inc b/src/cpu/amd/car/cache_as_ram.inc index aedb2fd564..e21462a30b 100644 --- a/src/cpu/amd/car/cache_as_ram.inc +++ b/src/cpu/amd/car/cache_as_ram.inc @@ -27,6 +27,7 @@ /* for CAR with FAM10 */ #define CacheSizeAPStack 0x400 /* 1K */ +#define MSR_MCFG_BASE 0xC0010058 #define MSR_FAM10 0xC001102A #define jmp_if_k8(x) comisd %xmm2, %xmm1; jb x @@ -115,7 +116,7 @@ CAR_FAM10_out: /* Errata 193: Disable clean copybacks to L3 cache to allow cached ROM. * Re-enable it in after RAM is initialized and before CAR is disabled */ - movl $0xc001102a, %ecx + movl $MSR_FAM10, %ecx rdmsr bts $15, %eax wrmsr @@ -136,6 +137,19 @@ CAR_FAM10_out: /* Erratum 343 end */ +#if defined(CONFIG_MMCONF_SUPPORT) + /* Set MMIO Config space BAR */ + movl $MSR_MCFG_BASE, %ecx + rdmsr + + andl $(~(0xfff00000 | (0xf << 2))), %eax + orl $((CONFIG_MMCONF_BASE_ADDRESS & 0xfff00000) | (8 << 2) | (1 << 0)), %eax + andl $(~(0x0000ffff)), %edx + orl $(CONFIG_MMCONF_BASE_ADDRESS >> 32), %edx + + wrmsr +#endif + CAR_FAM10_out_post_errata: /* Set MtrrFixDramModEn for clear fixed mtrr */ |