From f9014bbb60b1a4fdfd7aad90579f01dd8e42b1bc Mon Sep 17 00:00:00 2001 From: Felix Held Date: Wed, 3 Nov 2021 05:20:53 +0100 Subject: [PATCH] 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 Change-Id: Iad8e3a48496a52c14c936ab77c75dc1b403f47bb Reviewed-on: https://review.coreboot.org/c/coreboot/+/58876 Tested-by: build bot (Jenkins) Reviewed-by: Raul Rangel --- src/mainboard/google/guybrush/bootblock.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/mainboard/google/guybrush/bootblock.c b/src/mainboard/google/guybrush/bootblock.c index 83ac43ac41..187b2ef953 100644 --- a/src/mainboard/google/guybrush/bootblock.c +++ b/src/mainboard/google/guybrush/bootblock.c @@ -63,6 +63,7 @@ void bootblock_mainboard_early_init(void) /* Early eSPI interface configuration */ + /* Use SPI2 pins for eSPI */ dword = pm_read32(PM_SPI_PAD_PU_PD); dword |= PM_ESPI_CS_USE_DATA2; pm_write32(PM_SPI_PAD_PU_PD, dword);