mb/google/guybrush/bootblock: add comment on selecting eSPI interface

Setting the PM_ESPI_CS_USE_DATA2 bit in PM_SPI_PAD_PU_PD results in the
eSPI transactions being sent via the SPI2 pins instead of the SPI1 pins.

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Iad8e3a48496a52c14c936ab77c75dc1b403f47bb
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58876
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>

0 files changed, 0 insertions, 0 deletions