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authorShelley Chen <shchen@google.com>2019-02-11 13:06:10 -0800
committerPatrick Georgi <pgeorgi@google.com>2019-03-14 11:27:58 +0000
commit2ee720ca45ea6dbdfe24893bba7a47248387ba2f (patch)
tree19c54e521fa9c2177aecf577ff3e79206027caca /src/mainboard/emulation/qemu-q35
parentfa861eea3057bbbf067c7361c35721a2681a036e (diff)
downloadcoreboot-2ee720ca45ea6dbdfe24893bba7a47248387ba2f.tar.xz
mb/google/hatch: Use MEM_CH_SEL to indicate single_channel sku
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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