Nick Chen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/42897 )
Change subject: mb/google/volteer: Enable HotPlug on PCIe root port for the SD express ......................................................................
mb/google/volteer: Enable HotPlug on PCIe root port for the SD express
Enable HotPlug for the PCIe root port that the SD express is on so the OS can re-train the link without needing a reboot if it goes down unexpectedly at runtime.
BUG=b:156879564 BRANCH=master TEST=enable HotPlug on Volteer Root Port 7 (SD express) and check in linux that it is identified as a HotPlug capable root port
Signed-off-by: Nick Chen nick_xr_chen@wistron.corp-partner.google.com Change-Id: Ie9d427dd297567f06123119a670b5ed2e1f73701 --- M src/mainboard/google/volteer/variants/baseboard/devicetree.cb 1 file changed, 1 insertion(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/97/42897/1
diff --git a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb index 0c581a5..48ea18f 100644 --- a/src/mainboard/google/volteer/variants/baseboard/devicetree.cb +++ b/src/mainboard/google/volteer/variants/baseboard/devicetree.cb @@ -88,6 +88,7 @@ register "PcieRpLtrEnable[7]" = "1" register "PcieClkSrcUsage[3]" = "7" register "PcieClkSrcClkReq[3]" = "3" + register "PcieRpHotPlug[7]" = "1"
# Enable WLAN PCIE 7 using clk 1 register "PcieRpEnable[6]" = "1"