tree 6991791a603d33e5d72655bef4d35d739d9d1644
parent 28894c57988076688395c8a122d79640a3702d1a
author Alan Huang <alan-huang@quanta.corp-partner.google.com> 1642477145 +0800
committer Felix Held <felix-coreboot@felixheld.de> 1644855127 +0000

drivers/net/r8168: Add ASPM control mechanism

Add a new configuration parameter "enable_aspm_l1_2".

Write value 0xe059000f to register offset 0xb0 to allow kernel driver to
enable ASPM L1.2.

Use Kconfig "PCIEXP_ASPM" and "enable_aspm_l1_2" to decide whether to
enable ASPM L1.2.

BUG=b:204309459
TEST=emerge and test if the driver can read the correct value

Change-Id: I944dbf04d3ca19df4de224540bee538bff4d1f12
Signed-off-by: Alan Huang <alan-huang@quanta.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61267
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>