tree 10562de3548a7170c580a480187ddf2bfb98711e
parent 998fdc06cbe5524653eb0ca295d319d9cfb065ce
author Lean Sheng Tan <sheng.tan@9elements.com> 1662989203 +0200
committer Felix Held <felix-coreboot@felixheld.de> 1669992456 +0000

mb/prodrive/atlas: Enable GPP_B14 buzzer support

Per Intel doc 621483, 26.1.1 - NMI_STS_CNT, 8254 timer is required
for Speaker Data output (buzzer) at GPP_B14 NF1, as it is using
8254 timer counter 2 output. However when 8254 timer is used, S0ix
will not work as 8254 has to be gated instead. For further info on
s0ix requirements, refer to Intel doc 610002 (Modern Standby Unified
Checklist).

This CL also disables s0ix because it is not required by the
platform.

Signed-off-by: Lean Sheng Tan <sheng.tan@9elements.com>
Change-Id: Ib5e7787a47509ed09818d8515d21a80196fb1ec6
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67553
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>