This patch performs below operations to enable LAN0.
- Complete the LAN PEREST power sequencing
- Program the SRC_CLKREQ (GPP_D20) with correctly.
- Add overridetree.cb entry to configure the LAN0 device.
BUG=b:289395519
TEST=Able to boot google/ovis with LAN0 being enabled.
Change-Id: I91b0a76395ade4459cf8705c333728a71f95df14
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76213
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
d44e08ad9f