Change in coreboot[master]: mb/google/skyrim: Prepare for enabling PSP verstage

[Karthik Ramasubramanian (Code Review)]

Karthik Ramasubramanian has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/63731 )

Change subject: mb/google/skyrim: Prepare for enabling PSP verstage
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mb/google/skyrim: Prepare for enabling PSP verstage

Add various verstage init functions to prepare for enable PSP verstage.

BUG=None
TEST=Build Skyrim BIOS image with PSP verstage enabled.

Signed-off-by: Karthikeyan Ramasubramanian 
Change-Id: I0d0dba05d4d083e2c6860078676e59cf8f487c87
---
M src/mainboard/google/skyrim/Makefile.inc
M src/mainboard/google/skyrim/variants/baseboard/Makefile.inc
A src/mainboard/google/skyrim/verstage.c
3 files changed, 40 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/31/63731/1

diff --git a/src/mainboard/google/skyrim/Makefile.inc b/src/mainboard/google/skyrim/Makefile.inc
index f76a961..3a91cff 100644
--- a/src/mainboard/google/skyrim/Makefile.inc
+++ b/src/mainboard/google/skyrim/Makefile.inc
@@ -8,6 +8,8 @@
 ramstage-y += ec.c
 ramstage-$(CONFIG_CHROMEOS) += chromeos.c

+verstage-$(CONFIG_VBOOT_STARTS_BEFORE_BOOTBLOCK) += verstage.c
+
 subdirs-y += variants/baseboard
 subdirs-y += variants/$(VARIANT_DIR)

diff --git a/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc b/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc
index 7706e50..2864241 100644
--- a/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/skyrim/variants/baseboard/Makefile.inc
@@ -7,5 +7,6 @@
 ramstage-y += tpm_tis.c

verstage-y += tpm_tis.c
+verstage-$(CONFIG_VBOOT_STARTS_BEFORE_BOOTBLOCK) += gpio.c

smm-y += gpio.c
diff --git a/src/mainboard/google/skyrim/verstage.c b/src/mainboard/google/skyrim/verstage.c
new file mode 100644
index 0000000..8aaf70c
--- /dev/null
+++ b/src/mainboard/google/skyrim/verstage.c
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <amdblocks/acpimmio.h>
+#include <amdblocks/gpio.h>
+#include <arch/io.h>
+#include <baseboard/variants.h>
+#include <psp_verstage.h>
+#include <security/vboot/vboot_common.h>
+#include <soc/southbridge.h>
+
+void verstage_mainboard_early_init(void)
+{
+	const struct soc_amd_gpio *gpios, *override_gpios;
+	size_t num_gpios, override_num_gpios;
+
+	variant_early_gpio_table(&gpios, &num_gpios);
+	variant_early_override_gpio_table(&override_gpios, &override_num_gpios);
+	gpio_configure_pads_with_override(gpios, num_gpios, override_gpios, override_num_gpios);
+}
+
+void verstage_mainboard_espi_init(void)
+{
+	const struct soc_amd_gpio *gpios;
+	size_t num_gpios;
+
+	variant_espi_gpio_table(&gpios, &num_gpios);
+	gpio_configure_pads(gpios, num_gpios);
+}
+
+void verstage_mainboard_tpm_init(void)
+{
+	const struct soc_amd_gpio *gpios;
+	size_t num_gpios;
+
+	variant_tpm_gpio_table(&gpios, &num_gpios);
+	gpio_configure_pads(gpios, num_gpios);
+}