diff options
| author | Scott Duplichan <scott@notabs.org> | 2010-10-19 21:08:11 +0000 |
|---|---|---|
| committer | Scott Duplichan <scott@notabs.org> | 2010-10-19 21:08:11 +0000 |
| commit | bda153be7365ab48b5414ce3a72267f566ced3f3 (patch) | |
| tree | 913c609aa47b7b94006716a755a6222a5207a06d | |
| parent | 115e66018a28e66eb8d4388633f1299ede24bf94 (diff) | |
For AMD family 10h processors, msr c0010058 is always programmed
for 256 buses, even if fewer are configured. This patch lets msr
c0010058 programming use the configured bus count, CONFIG_MMCONF_BUS_NUMBER.
Signed-off-by: Scott Duplichan <scott@notabs.org>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5976 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
| -rw-r--r-- | src/cpu/amd/car/cache_as_ram.inc | 36 |
1 files changed, 28 insertions, 8 deletions
diff --git a/src/cpu/amd/car/cache_as_ram.inc b/src/cpu/amd/car/cache_as_ram.inc index 5a19a0c0b0..0bea56dbbf 100644 --- a/src/cpu/amd/car/cache_as_ram.inc +++ b/src/cpu/amd/car/cache_as_ram.inc @@ -132,14 +132,34 @@ CAR_FAM10_out: wrmsr #if 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)), %eax - orl $((8 << 2) | (1 << 0)), %eax - andl $(~(0x0000ffff)), %edx - orl $(CONFIG_MMCONF_BASE_ADDRESS >> 32), %edx + #if (CONFIG_MMCONF_BASE_ADDRESS > 0xFFFFFFFF) + #error "MMCONF_BASE_ADDRESS too big" + #elif (CONFIG_MMCONF_BASE_ADDRESS & 0xFFFFF) + #error "MMCONF_BASE_ADDRESS not 1MB aligned" + #endif + movl $0, %edx + movl $((CONFIG_MMCONF_BASE_ADDRESS) | (1 << 0)), %eax + #if (CONFIG_MMCONF_BUS_NUMBER == 1) + #elif (CONFIG_MMCONF_BUS_NUMBER == 2) + orl $(1 << 2), %eax + #elif (CONFIG_MMCONF_BUS_NUMBER == 4) + orl $(2 << 2), %eax + #elif (CONFIG_MMCONF_BUS_NUMBER == 8) + orl $(3 << 2), %eax + #elif (CONFIG_MMCONF_BUS_NUMBER == 16) + orl $(4 << 2), %eax + #elif (CONFIG_MMCONF_BUS_NUMBER == 32) + orl $(5 << 2), %eax + #elif (CONFIG_MMCONF_BUS_NUMBER == 64) + orl $(6 << 2), %eax + #elif (CONFIG_MMCONF_BUS_NUMBER == 128) + orl $(7 << 2), %eax + #elif (CONFIG_MMCONF_BUS_NUMBER == 256) + orl $(8 << 2), %eax + #else + #error "bad MMCONF_BUS_NUMBER value" + #endif + movl $(0xc0010058), %ecx wrmsr #endif |