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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>
This commit is contained in:
Mike Banon 2020-08-14 16:50:11 +03:00 committed by Angel Pons
parent ddc2a30737
commit 1452c80ee9
1 changed files with 1 additions and 1 deletions
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2
src/mainboard/asus/am1i-a/buildOpts.c
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@ -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