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| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-11-20 08:03:49 +0200 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2016-12-01 05:47:18 +0100 |
| commit | 7d25651ed3eb78228a00b479454d0ab2417f3f2a (patch) | |
| tree | 07c33833b4a763def10d3c7002439a04c1468f76 /src/cpu/amd | |
| parent | 036a581b8fa9478d4dba1bf9e576ee9cc0bead24 (diff) | |
| download | coreboot-7d25651ed3eb78228a00b479454d0ab2417f3f2a.tar.xz | |
AGESA f14: Consolidate early P-states setting
Change-Id: I3feed296b6ff9908e783c1221a8f61d9c548fef4
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/17564
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/cpu/amd')
| -rw-r--r-- | src/cpu/amd/agesa/family14/fixme.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cpu/amd/agesa/family14/fixme.c b/src/cpu/amd/agesa/family14/fixme.c index ab10e3a704..25a32bdb9c 100644 --- a/src/cpu/amd/agesa/family14/fixme.c +++ b/src/cpu/amd/agesa/family14/fixme.c @@ -98,6 +98,10 @@ void amd_initmmio(void) LibAmdMsrWrite (0x20C, &MsrReg, &StdHeader); MsrReg = ((1ULL << CONFIG_CPU_ADDR_BITS) - CACHE_ROM_SIZE) | MTRR_PHYS_MASK_VALID; LibAmdMsrWrite (0x20D, &MsrReg, &StdHeader); + + /* Set P-state 0 (1600 MHz) early to save a few ms of boot time */ + MsrReg = 0; + LibAmdMsrWrite (0xC0010062, &MsrReg, &StdHeader); } void amd_initenv(void) |