[S] Change in coreboot[master]: mb/google/dedede: Add method to set GPIOs in romstage

[Felix Singer (Code Review)]

Felix Singer has submitted this change. ( https://review.coreboot.org/c/coreboot/+/71186 )

Change subject: mb/google/dedede: Add method to set GPIOs in romstage
......................................................................

mb/google/dedede: Add method to set GPIOs in romstage

Add method variant_romstage_gpio_table() with empty weak implementation
to allow variants to override as needed for touchscreen power
sequencing (to be implemented in a subsequent commit). Call method
in romstage to program any GPIOs the variant may need to set.

TEST=tested with rest of patch train

Change-Id: Ic216827a4b53d1d35913efca63a43d4672791c54
Signed-off-by: Matt DeVillier 
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71186
Tested-by: build bot (Jenkins) 
Reviewed-by: Felix Singer 
---
M src/mainboard/google/dedede/romstage.c
M src/mainboard/google/dedede/variants/baseboard/Makefile.inc
M src/mainboard/google/dedede/variants/baseboard/gpio.c
M src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
4 files changed, 33 insertions(+), 0 deletions(-)

Approvals:
  build bot (Jenkins): Verified
  Felix Singer: Looks good to me, approved

diff --git a/src/mainboard/google/dedede/romstage.c b/src/mainboard/google/dedede/romstage.c
index 34810b4..3808371 100644
--- a/src/mainboard/google/dedede/romstage.c
+++ b/src/mainboard/google/dedede/romstage.c
@@ -10,6 +10,8 @@

void mainboard_memory_init_params(FSPM_UPD *memupd)
 {
+	const struct pad_config *pads;
+	size_t pads_num;
    const struct mb_cfg *board_cfg = variant_memcfg_config();
    const struct spd_info spd_info = {
    	.read_type = READ_SPD_CBFS,
@@ -18,4 +20,7 @@
    bool half_populated = variant_mem_is_half_populated();

memcfg_init(&memupd->FspmConfig, board_cfg, &spd_info, half_populated);
+
+	pads = variant_romstage_gpio_table(&pads_num);
+	gpio_configure_pads(pads, pads_num);
 }
diff --git a/src/mainboard/google/dedede/variants/baseboard/Makefile.inc b/src/mainboard/google/dedede/variants/baseboard/Makefile.inc
index 4f87de9..64a81f9 100644
--- a/src/mainboard/google/dedede/variants/baseboard/Makefile.inc
+++ b/src/mainboard/google/dedede/variants/baseboard/Makefile.inc
@@ -1,5 +1,6 @@
 bootblock-y += gpio.c

+romstage-y += gpio.c
 romstage-y += memory.c

ramstage-y += gpio.c
diff --git a/src/mainboard/google/dedede/variants/baseboard/gpio.c b/src/mainboard/google/dedede/variants/baseboard/gpio.c
index 29ca2df..1f12fb7 100644
--- a/src/mainboard/google/dedede/variants/baseboard/gpio.c
+++ b/src/mainboard/google/dedede/variants/baseboard/gpio.c
@@ -469,6 +469,12 @@
    return sleep_gpio_table;
 }

+const struct pad_config *__weak variant_romstage_gpio_table(size_t *num)
+{
+	*num = 0;
+	return NULL;
+}
+
 static const struct cros_gpio cros_gpios[] = {
    CROS_GPIO_REC_AL(CROS_GPIO_VIRTUAL, CROS_GPIO_COMM0_NAME),
    CROS_GPIO_WP_AH(GPIO_PCH_WP, CROS_GPIO_COMM0_NAME),
diff --git a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
index 53e740c..edb2b07 100644
--- a/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
+++ b/src/mainboard/google/dedede/variants/baseboard/include/baseboard/variants.h
@@ -14,6 +14,7 @@
 const struct pad_config *variant_early_gpio_table(size_t *num);
 const struct pad_config *variant_sleep_gpio_table(size_t *num);
 const struct pad_config *variant_override_gpio_table(size_t *num);
+const struct pad_config *variant_romstage_gpio_table(size_t *num);

enum s0ix_entry {
    S0IX_EXIT,