Change in ...coreboot[master]: mb/google/sarien: Setup GPIOs again after FSP-S

[Duncan Laurie (Code Review)]

Duncan Laurie has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30113

Change subject: mb/google/sarien: Setup GPIOs again after FSP-S
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mb/google/sarien: Setup GPIOs again after FSP-S

Currently FSP is incorrectly modifying GPIO pad configuration if
specific UPD variables are not set as it expects.  Until FSP is
fixed this workaround re-programms the GPIO settings after FSP-S
step so they are correct for the OS.

BUG=b:120686247
TEST=verify correct GPIO configuration for GPP_E group in the kernel

Change-Id: I19550c4347cf65d409de6a8638619270372c4d0a
Signed-off-by: Duncan Laurie 
---
M src/mainboard/google/sarien/ramstage.c
1 file changed, 11 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/13/30113/1

diff --git a/src/mainboard/google/sarien/ramstage.c b/src/mainboard/google/sarien/ramstage.c
index c65104b..c2dc27d 100644
--- a/src/mainboard/google/sarien/ramstage.c
+++ b/src/mainboard/google/sarien/ramstage.c
@@ -27,8 +27,19 @@
    gpio_configure_pads(gpio_table, num_gpios);
 }

+/* Workaround FSP issue by reprogramming GPIOs after FSP-S */
+static void mainboard_init(struct device *dev)
+{
+	const struct pad_config *gpio_table;
+	size_t num_gpios;
+
+	gpio_table = variant_gpio_table(&num_gpios);
+	gpio_configure_pads(gpio_table, num_gpios);
+}
+
 static void mainboard_enable(struct device *dev)
 {
+	dev->ops->init = mainboard_init;
    dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
 }