tree aec6533a08164e050740937c5bbf8ec14b7558ae
parent 6527b1acc7a020e1f0594a7ea30daed0978dd5fd
author Furquan Shaikh <furquan@google.com> 1549403987 -0800
committer Patrick Georgi <pgeorgi@google.com> 1549529513 +0000

soc/intel/cannonlake: Configure GPIOs again after FSP-S is done

FSP-S is currently configuring GPIOs that it should not. This results
in issues where mainboard devices don't behave as expected e.g. host
unable to receive TPM interrupts as the pad for the interrupt is
re-configured as something else.

Until FSP-S is fixed, this change adds a workaround by reconfiguring
GPIOs after FSP-S is run.

All mainboards need to call cnl_configure_pads instead of
gpio_configure_pads so that SoC code can maintain a reference to the
GPIO table and use that to re-configure GPIOs after FSP-S is run.

BUG=b:123721147
BRANCH=None
TEST=Verified that there are no TPM IRQ timeouts in boot log on hatch.

Change-Id: I7787aa8f185f633627bcedc7f23504bf4a5250b4
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/c/31250
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>