From 3f7a52f00e0781c2439a29a3637cb2b43762c478 Mon Sep 17 00:00:00 2001 From: David Wu Date: Thu, 11 Jun 2020 13:59:34 +0800 Subject: 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 Change-Id: I0db9fff0dddf35c99a6cb2a90d40886ed8e18686 Reviewed-on: https://review.coreboot.org/c/coreboot/+/42274 Tested-by: build bot (Jenkins) Reviewed-by: Tim Wawrzynczak --- src/mainboard/google/volteer/variants/terrador/overridetree.cb | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/mainboard/google/volteer/variants/terrador/overridetree.cb b/src/mainboard/google/volteer/variants/terrador/overridetree.cb index 4bff10d40d..81da6bdee9 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 -- cgit v1.2.3