[coreboot-gerrit] [S] Change in coreboot[master]: mb/prodrive/atlas: Enable GPP_B14 buzzer support

[Lean Sheng Tan (Code Review)]

Attention is currently required from: Paul Menzel, Christian Walter, Maximilian Brune, Lean Sheng Tan, David Milosevic.

Hello build bot (Jenkins), Christian Walter, Angel Pons, Maximilian Brune, David Milosevic,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/67553

to look at the new patch set (#13).

Change subject: mb/prodrive/atlas: Enable GPP_B14 buzzer support
......................................................................

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 
Change-Id: Ib5e7787a47509ed09818d8515d21a80196fb1ec6
---
M src/mainboard/prodrive/atlas/Kconfig
M src/mainboard/prodrive/atlas/devicetree.cb
2 files changed, 32 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/53/67553/13