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| author | David Wu <david_wu@quanta.corp-partner.google.com> | 2020-06-11 13:59:34 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-06-22 12:28:34 +0000 |
| commit | 3f7a52f00e0781c2439a29a3637cb2b43762c478 (patch) | |
| tree | 2adfa01626ce51f58a841dee99611cf06e9a4902 | |
| parent | 63ce260a3ea8da00973d48af7c04a215e8163985 (diff) | |
| download | coreboot-3f7a52f00e0781c2439a29a3637cb2b43762c478.tar.xz | |
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>
| -rw-r--r-- | src/mainboard/google/volteer/variants/terrador/overridetree.cb | 5 |
1 files changed, 5 insertions, 0 deletions
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 |