Patrick Georgi has submitted this change. ( https://review.coreboot.org/c/coreboot/+/42274 )
Change subject: mb/google/volteer/variants/terrador: Enable Cmd Mirror ......................................................................
mb/google/volteer/variants/terrador: Enable Cmd Mirror
Enable CmdMirror for Terrador to achieve optimum routing from SoC to DRAMs
BUG=b:156435028 BRANCH=none TEST=FW_NAME=terrador emerge-volteer coreboot chromeos-bootimage
Signed-off-by: David Wu david_wu@quanta.corp-partner.google.com Change-Id: I0db9fff0dddf35c99a6cb2a90d40886ed8e18686 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42274 Tested-by: build bot (Jenkins) no-reply@coreboot.org Reviewed-by: Tim Wawrzynczak twawrzynczak@chromium.org --- M src/mainboard/google/volteer/variants/terrador/overridetree.cb 1 file changed, 5 insertions(+), 0 deletions(-)
Approvals: build bot (Jenkins): Verified Tim Wawrzynczak: Looks good to me, approved
diff --git a/src/mainboard/google/volteer/variants/terrador/overridetree.cb b/src/mainboard/google/volteer/variants/terrador/overridetree.cb index 4bff10d..81da6bd 100644 --- a/src/mainboard/google/volteer/variants/terrador/overridetree.cb +++ b/src/mainboard/google/volteer/variants/terrador/overridetree.cb @@ -1,4 +1,9 @@ chip soc/intel/tigerlake + # BitMask where bits [3:0] are Controller 0 Channel [3:0] and + # bits [7:4] are Controller 1 Channel [3:0]. + # Enable Command Mirroring for controller 0 channel 0 and 1, + # and controller 1 channel 0 and 1. + register "CmdMirror" = "0x00000033" device domain 0 on device pci 15.1 on chip drivers/i2c/hid