soc/amd/stoneyridge/southbridge.c: Create a GPIO programming function

Create a GPIO programming function that can be called from multiple
stages (bootblock, romstage and ramstage) that will program only the
GPIO specific to the particular stage.

Add dummy table to kahlee, grunt and gardenia to be able to test a build.

BUG=b:64140392
TEST=Build kahlee, grunt and gardenia with GPIO programming call at
bootblock. This call is removed before commit, so bootblock.c is not
committed.

Change-Id: I88d65c78a186bed9739bc208d5711a31aa3c3bb6
Signed-off-by: Richard Spiegel <richard.spiegel@silverbackltd.com>
Reviewed-on: https://review.coreboot.org/22986
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

2 files changed, 28 insertions, 1 deletions

diff --git a/src/mainboard/amd/gardenia/Makefile.inc b/src/mainboard/amd/gardenia/Makefile.inc
index 4c637bbfbf..cceb84c48e 100644
--- a/src/mainboard/amd/gardenia/Makefile.inc
+++ b/src/mainboard/amd/gardenia/Makefile.inc
@@ -13,12 +13,13 @@
 # GNU General Public License for more details.
 #
 
-bootblock-y += bootblock/BiosCallOuts.c
+bootblock-y += bootblock/gpio.c
 bootblock-y += bootblock/OemCustomize.c
 
 romstage-y += BiosCallOuts.c
 romstage-y += OemCustomize.c
 
+ramstage-y += bootblock/gpio.c
 ramstage-y += BiosCallOuts.c
 ramstage-y += OemCustomize.c
 ramstage-$(CONFIG_STONEYRIDGE_IMC_FWM) += fchec.c
diff --git a/src/mainboard/amd/gardenia/bootblock/BiosCallOuts.c b/src/mainboard/amd/gardenia/bootblock/gpio.c
index 7e60daee27..7b18618465 100644
--- a/src/mainboard/amd/gardenia/bootblock/BiosCallOuts.c
+++ b/src/mainboard/amd/gardenia/bootblock/gpio.c
@@ -17,6 +17,22 @@
 #include <amdblocks/BiosCallOuts.h>
 #include <soc/southbridge.h>
 #include <stdlib.h>
+#include <soc/gpio.h>
+
+/*
+ * As a rule of thumb, GPIO pins used by coreboot should be initialized at
+ * bootblock while GPIO pins used only by the OS should be initialized at
+ * ramstage.
+ */
+const struct soc_amd_stoneyridge_gpio gpio_set_stage_reset[] = {
+	/* NFC PU */
+	{GPIO_64, Function0, FCH_GPIO_PULL_UP_ENABLE | OUTPUT_H },
+};
+
+const struct soc_amd_stoneyridge_gpio gpio_set_stage_ram[] = {
+	/* BT radio disable */
+	{GPIO_14, Function1, FCH_GPIO_PULL_UP_ENABLE | OUTPUT_H },
+};
 
 static const GPIO_CONTROL oem_gardenia_gpio[] = {
 	/* BT radio disable */
@@ -48,3 +64,13 @@ void platform_FchParams_reset(FCH_RESET_DATA_BLOCK *FchParams_reset)
 {
 	FchParams_reset->EarlyOemGpioTable = (void *)oem_gardenia_gpio;
 }
+
+const struct soc_amd_stoneyridge_gpio *board_get_gpio(size_t *size)
+{
+	if (GPIO_TABLE_BOOTBLOCK) {
+		*size = ARRAY_SIZE(gpio_set_stage_reset);
+		return gpio_set_stage_reset;
+	}
+	*size = ARRAY_SIZE(gpio_set_stage_ram);
+	return gpio_set_stage_ram;
+}