diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/amd/persimmon/romstage.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/mainboard/amd/persimmon/romstage.c b/src/mainboard/amd/persimmon/romstage.c index e3ed847fdb..da2db64071 100644 --- a/src/mainboard/amd/persimmon/romstage.c +++ b/src/mainboard/amd/persimmon/romstage.c @@ -50,6 +50,13 @@ void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx) // all cores: set pstate 0 (1600 MHz) early to save a few ms of boot time __writemsr (0xc0010062, 0); + // early enable of PrefetchEnSPIFromHost + if (boot_cpu()) + { + __outdword (0xcf8, 0x8000a3b8); + __outdword (0xcfc, __indword (0xcfc) | 0 << 24); + } + // early enable of SPI 33 MHz fast mode read if (boot_cpu()) { |