PCIe: Add L1 Sub-State support

Hardware / Coreboot - Kenji Chen [intel.com] - 23 March 2015 07:11 UTC

Enable L1 Sub-State when both root port and endpoint support it.

[pg: keyed the feature to MMCONF_SUPPORT, otherwise boards without that capability fail to build.]

Change-Id: Id11fc7c73eb865411747eef63f5f901e00a17f84

31c6e63 PCIe: Add L1 Sub-State support.
src/device/Kconfig | 8 ++
src/device/pciexp_device.c | 184 ++++++++++++++++++++++++++++++++++++++++++
src/include/device/pci.h | 1 +
src/include/device/pci_def.h | 6 ++
src/include/device/pciexp.h | 1 +
5 files changed, 200 insertions(+)

Upstream: review.coreboot.org

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