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authorChristian Walter <christian.walter@9elements.com>2020-07-07 16:57:15 +0200
committerPatrick Georgi <pgeorgi@google.com>2020-07-12 19:40:19 +0000
commit18d315910adddec70d69fc1cc97426e5bbe9dd5a (patch)
tree40382e6710d799abe1ca3aa1029557f16f807003 /src/soc/intel/common
parent07ac2ec021cf504679f55a7365332e6dc7da0cd6 (diff)
downloadcoreboot-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/intel/common')
-rw-r--r--src/soc/intel/common/block/pcie/Kconfig12
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