Angel Pons has submitted this change. ( https://review.coreboot.org/c/coreboot/+/44462 )
Change subject: mb/asus/am1i-a/buildOpts.c: choose the 1600 MT/s RAM frequency ......................................................................
mb/asus/am1i-a/buildOpts.c: choose the 1600 MT/s RAM frequency
Together with the "AMD_XMP" changes, now this board with Crucial BLT8G3D1869DT1TX0 sticks could run at 1600 MT/s CL8 (8-8-9-23) speeds. Earlier only 1333 MT/s CL9 (9-9-10-27) has been possible with coreboot.
1866 MT/s CL9 is impossible on f16kb without northbridge overclocking. tRP in "CL-tRCD-tRP-tRAS" gets set 1 point higher by AGESA because of Errata 638. See more info in a BKDG for AMD Family 16h Models 00h-0Fh.
Signed-off-by: Mike Banon mikebdp2@gmail.com Change-Id: I7e9f5120421221043f9f9dfe143b51bfa61936be Reviewed-on: https://review.coreboot.org/c/coreboot/+/44462 Reviewed-by: Angel Pons th3fanbus@gmail.com Tested-by: build bot (Jenkins) no-reply@coreboot.org --- M src/mainboard/asus/am1i-a/buildOpts.c 1 file changed, 1 insertion(+), 1 deletion(-)
Approvals: build bot (Jenkins): Verified Angel Pons: Looks good to me, approved
diff --git a/src/mainboard/asus/am1i-a/buildOpts.c b/src/mainboard/asus/am1i-a/buildOpts.c index fe0915b..d143cc3 100644 --- a/src/mainboard/asus/am1i-a/buildOpts.c +++ b/src/mainboard/asus/am1i-a/buildOpts.c @@ -40,7 +40,7 @@ #define BLDCFG_MEMORY_SODIMM_CAPABLE FALSE #define BLDCFG_MEMORY_ENABLE_BANK_INTERLEAVING FALSE #define BLDCFG_MEMORY_CHANNEL_INTERLEAVING FALSE -#define BLDCFG_MEMORY_CLOCK_SELECT DDR1333_FREQUENCY /* FIXME: Turtle RAM? */ +#define BLDCFG_MEMORY_CLOCK_SELECT DDR1600_FREQUENCY #define BLDCFG_IGNORE_SPD_CHECKSUM TRUE #define BLDCFG_ENABLE_ECC_FEATURE FALSE #define BLDCFG_ECC_SYNC_FLOOD FALSE