The generic Intel SMM S5 entry path disables all GPEs before asserting
SLP_EN, which clears OS-armed wake enables (e.g. LAN_WAKE) and prevents
Wake-on-LAN from S5.
Add a mainboard override hook, mainboard_smi_sleep_finalize(), called
after the S5 teardown but before SLP_EN is asserted, allowing boards to
restore required wake sources.
Change-Id: I9e97308ed94961fc4c08a10714b1b53f198bb593
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90792
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Jérémy Compostella <jeremy.compostella@intel.com>
8602d0e2aa