GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

mb/google/guybrush: Set Gen3 default for all PCIe devices 

Currently link_speed_capability is not specified within the DXIO
descriptors sent to FSP. This value specifies the maximum speed that
a PCIe device should train up to. The only device on Monkey Island that
is not currently running at full speed is the NVME but this may not
always be the case.

BUG=b:204791296
TEST=Boot to OS and check link speed with LSPCI to verify
NVME link speed goes from 2.5 GT/s to 5 GT/s

Change-Id: Ibeac4b9e6a60567fb513e157d854399f5d12aee9
Signed-off-by: Matt Papageorge <matthewpapa07@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58799
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
This commit is contained in:
Matt Papageorge 2021-11-01 16:39:47 -05:00 committed by Patrick Georgi
parent a3260fde92
commit 7d6b4e3ae5
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/mainboard/google/guybrush/port_descriptors.c
View File

@ -14,6 +14,7 @@ static fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
.port_present = true,
.start_logical_lane = 0,
.end_logical_lane = 0,
.link_speed_capability = 3,
.device_number = PCI_SLOT(WLAN_DEVFN),
.function_number = PCI_FUNC(WLAN_DEVFN),
.link_aspm = ASPM_L1,
@ -28,6 +29,7 @@ static fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
.port_present = true,
.start_logical_lane = 1,
.end_logical_lane = 1,
.link_speed_capability = 3,
.device_number = PCI_SLOT(SD_DEVFN),
.function_number = PCI_FUNC(SD_DEVFN),
.link_aspm = ASPM_L1,
@ -43,6 +45,7 @@ static fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
.port_present = true,
.start_logical_lane = 2,
.end_logical_lane = 2,
.link_speed_capability = 3,
.device_number = PCI_SLOT(WWAN_DEVFN),
.function_number = PCI_FUNC(WWAN_DEVFN),
.link_aspm = ASPM_L1,
@ -57,6 +60,7 @@ static fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
.port_present = true,
.start_logical_lane = 4,
.end_logical_lane = 7,
.link_speed_capability = 3,
.device_number = PCI_SLOT(NVME_DEVFN),
.function_number = PCI_FUNC(NVME_DEVFN),
.link_aspm = ASPM_L1,