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| author | Christian Walter <christian.walter@9elements.com> | 2020-07-07 16:57:15 +0200 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2020-07-12 19:40:19 +0000 |
| commit | 18d315910adddec70d69fc1cc97426e5bbe9dd5a (patch) | |
| tree | 40382e6710d799abe1ca3aa1029557f16f807003 /src/soc | |
| parent | 07ac2ec021cf504679f55a7365332e6dc7da0cd6 (diff) | |
| download | coreboot-18d315910adddec70d69fc1cc97426e5bbe9dd5a.tar.xz | |
soc/intel/common/block/pcie: Select ASPM on mainboard basis
Current the common soc code automatically selects PCIEXP_CLK_PM and
PCIEXP_L1_SUB_STATE which breaks booting Windows with a PCIE NVIDIA
graphics card attached on mainboards that do not have a CLKREQ# signal.
This is commonly used on server and workstations boards where the
additional power savings of L1 substate are not required.
Make the PCIEXP_CLK_PM and PCIEXP_L1_SUB_STATE default y but do not
select it anymore by the soc code, thus we can disable it in the
mainboard code.
Tested on CFL with Windows 10.
Change-Id: I025e13d6d8183256647e4c034e31bafa235f7eb7
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41696
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/common/block/pcie/Kconfig | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/src/soc/intel/common/block/pcie/Kconfig b/src/soc/intel/common/block/pcie/Kconfig index aa32324401..9c42af6c25 100644 --- a/src/soc/intel/common/block/pcie/Kconfig +++ b/src/soc/intel/common/block/pcie/Kconfig @@ -1,12 +1,20 @@ config SOC_INTEL_COMMON_BLOCK_PCIE bool select PCIEXP_ASPM - select PCIEXP_CLK_PM select PCIEXP_COMMON_CLOCK - select PCIEXP_L1_SUB_STATE help Intel Processor common PCIE support +if SOC_INTEL_COMMON_BLOCK_PCIE + +config PCIEXP_CLK_PM + default y + +config PCIEXP_L1_SUB_STATE + default y + +endif # SOC_INTEL_COMMON_BLOCK_PCIE + config PCIE_DEBUG_INFO bool help |