Enable the coreboot CMOS option table, which initializes CMOS if the
checksum is not valid.
There is now a checksum in the CMOS layout since 4.21, update it when
updating the Mini v1/v2 EC power-on setting.
coreboot 4.21 will reset the CMOS settings during the first boot, since
there was no checksum in prior releases. Heads will restore the
automatic power-on setting during init based on config.user.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
PureBoot doesn't have any other three-valued settings and this doesn't
present very well in the config UI.
Instead make this a two-valued setting; drop the mode that forces the
EC setting to "stay off" at every boot because this is the default.
When disabling automatic power-on, disable the EC BRAM setting too.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
Mini v1/v2's EC can automatically power on the system when power is
applied, based on a value in EC BRAM. Add a configuration setting to
optionally set this value.
Signed-off-by: Jonathon Hall <jonathon.hall@puri.sm>
