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MEM_CH_SEL is used to indicate whether we are on a single or dual
channel device, where MEM_CH_SEL = 1 for single channel skus and
MEM_CH_SEL = 0 for dual channel skus. Initialize single_channel field
(from GPP_F2), which will in turn initialize MemorySpdPtr pointers in
cannonlake soc code. In the first build, we did not use GPP_F2, so we
need to add an internal pulldown as those early devices were all dual
channel devices.
BUG=b:123062346, b:122959294
BRANCH=None
TEST=Boot into current boards and ensure that we have 2 channels as expected
Also, verify that GPP_F2 is set to 0.
Change-Id: I89d022793580be603a93d0b177d73ce968529b5c
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31358
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
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This change reads DRAM part number from EEPROM if available and
returns it using the SoC callback (mainboard_get_dram_part_number).
BUG=b:127609572
TEST=Verify that DRAM part number from EEPROM is added to DMI table
17 (dmidecode -t 17).
Change-Id: I6ade6999828b6d67aa78d04199138f195a97ba8c
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/31851
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
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This implementation adds below support:
1. Add support to read memory strap.
2. Add support to configure below memory parameters
-> rcomp resistor configuration
-> dqs mapping
-> ect and ca vref config
3. Include SPD configuration
BUG=b:120914069
BRANCH=None
TEST=USE="-intel_mrc -bmplk" emerge-hatch coreboot
Change-Id: I9bda08bd0b9f91ebb96b39291e15473492a6bf19
Signed-off-by: Aamir Bohra <aamir.bohra@intel.com>
Reviewed-on: https://review.coreboot.org/c/30248
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Reviewed-by: Shelley Chen <shchen@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
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Creating skeleton files and directories in mainboard for the new Hatch
board. This is to facilitate development for different parties
involved.
BUG=None
BRANCH=None
TEST=./util/abuild/abuild -p none -t google/hatch -x -a
Change-Id: I5fc60c178f83034abe5d846d0f4169072b66f448
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/30169
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aamir Bohra <aamir.bohra@intel.com>
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