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mb/google/volteer/var/voema: Disable PCIe 7 and 8 for WLAN and SD card 

Based on latest schematic, disable PCIe 7 and 8 for WLAN and SD card.

BUG=b:169356808
TEST=FW_NAME=voema emerge-volteer coreboot chromeos-bootimage

Signed-off-by: David Wu <david_wu@quanta.corp-partner.google.com>
Change-Id: I2a4658a382c094c2a5b16b7acaf464f54e9897b1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48845
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
David Wu 2020-12-22 13:24:37 +08:00 committed by Hung-Te Lin
parent b8d614f8cc
commit 9e2761fe2b
1 changed files with 8 additions and 1 deletions
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9
src/mainboard/google/volteer/variants/voema/overridetree.cb
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@ -5,8 +5,15 @@ chip soc/intel/tigerlake
# and controller 1 channel 0 and 1.
register "CmdMirror" = "0x00000033"
# Disable SRCCLKREQ1# and SRCCLKREQ3#
# Disable WLAN PCIE 7
register "PcieRpEnable[6]" = "0"
register "PcieRpLtrEnable[6]" = "0"
register "PcieClkSrcUsage[1]" = "PCIE_CLK_NOTUSED"
# Disable SD Card PCIE 8
register "PcieRpEnable[7]" = "0"
register "PcieRpLtrEnable[7]" = "0"
register "PcieRpHotPlug[7]" = "0"
register "PcieClkSrcUsage[3]" = "PCIE_CLK_NOTUSED"
device domain 0 on