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authorScott Duplichan <scott@notabs.org>2011-05-15 22:06:09 +0000
committerMarc Jones <marc.jones@amd.com>2011-05-15 22:06:09 +0000
commit769527e523bb40ecb33a1f6811dae0d689ca4e26 (patch)
tree21efa15a6e9a6334e68afbc10c088002e02918e8 /src
parent3c639e7df84996926535e5f66ddfdfb9076c6b74 (diff)
Enable rom cache early to reduce boot time.
Signed-off-by: Scott Duplichan <scott@notabs.org> Acked-by: Marc Jones <marcj303@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6591 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/amd/persimmon/agesawrapper.c7
-rw-r--r--src/mainboard/amd/persimmon/romstage.c5
2 files changed, 5 insertions, 7 deletions
diff --git a/src/mainboard/amd/persimmon/agesawrapper.c b/src/mainboard/amd/persimmon/agesawrapper.c
index 9f587b9c97..e98d874b4b 100644
--- a/src/mainboard/amd/persimmon/agesawrapper.c
+++ b/src/mainboard/amd/persimmon/agesawrapper.c
@@ -157,13 +157,6 @@ agesawrapper_amdinitmmio (
PciData = (AMD_APU_SSID<<0x10)|AMD_APU_SVID;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
-
- /* Set ROM cache onto WP to decrease post time */
- MsrReg = (0x0100000000 - CONFIG_ROM_SIZE) | 5;
- LibAmdMsrWrite (0x20C, &MsrReg, &StdHeader);
- MsrReg = (0x1000000000 - CONFIG_ROM_SIZE) | 0x800;
- LibAmdMsrWrite (0x20D, &MsrReg, &StdHeader);
-
Status = AGESA_SUCCESS;
return (UINT32)Status;
}
diff --git a/src/mainboard/amd/persimmon/romstage.c b/src/mainboard/amd/persimmon/romstage.c
index 749c51b649..1bcb0d1407 100644
--- a/src/mainboard/amd/persimmon/romstage.c
+++ b/src/mainboard/amd/persimmon/romstage.c
@@ -47,6 +47,11 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
u32 val;
u8 reg8;
+ // all cores: allow caching of flash chip code and data
+ // (there are no cache-as-ram reliability concerns with family 14h)
+ __writemsr (0x20c, (0x0100000000ull - CONFIG_ROM_SIZE) | 5);
+ __writemsr (0x20d, (0x1000000000ull - CONFIG_ROM_SIZE) | 0x800);
+
// all cores: set pstate 0 (1600 MHz) early to save a few ms of boot time
__writemsr (0xc0010062, 0);