1 files changed, 61 insertions, 0 deletions
diff --git a/src/mainboard/amd/mandolin/gpio.c b/src/mainboard/amd/mandolin/gpio.c
new file mode 100644
index 0000000000..a60f00e03a
--- /dev/null
+++ b/src/mainboard/amd/mandolin/gpio.c
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/console.h>
+#include <soc/gpio.h>
+
+#include "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.
+ */
+static const struct soc_amd_gpio gpio_set_stage_ram[] = {
+	/* SSD DEVSLP */
+	PAD_NF(GPIO_5, DEVSLP0, PULL_NONE),
+	/* Defeature SATA Express DEVSLP, as some boards are reworked
+	 * to tie this to GPIO23 to control power */
+	PAD_GPI(GPIO_6, PULL_UP),
+	/* I2S SDIN */
+	PAD_NF(GPIO_7, ACP_I2S_SDIN, PULL_NONE),
+	/* I2S LRCLK */
+	PAD_NF(GPIO_8, ACP_I2S_LRCLK, PULL_NONE),
+	/* Blink */
+	PAD_NF(GPIO_11, BLINK, PULL_NONE),
+	/* APU_ALS_INT# */
+	PAD_SCI(GPIO_24, PULL_UP, EDGE_LOW),
+	/* Finger print CS# */
+	PAD_GPO(GPIO_31, HIGH),
+	/* NFC IRQ */
+	PAD_INT(GPIO_69, PULL_UP, EDGE_LOW, STATUS),
+	/* Rear camera power enable */
+	PAD_GPO(GPIO_89, HIGH),
+};
+
+/* eMMC controller driving either an SD card or eMMC device. */
+static const struct soc_amd_gpio emmc_gpios[] = {
+	PAD_NF(GPIO_21,  EMMC_CMD,	PULL_UP),
+	PAD_NF(GPIO_22,  EMMC_PRW_CTRL,	PULL_UP),
+	PAD_NF(GPIO_68,  EMMC_CD,	PULL_UP),
+	PAD_NF(GPIO_70,  EMMC_CLK,	PULL_NONE),
+	PAD_NF(GPIO_104, EMMC_DATA0,	PULL_UP),
+	PAD_NF(GPIO_105, EMMC_DATA1,	PULL_UP),
+	PAD_NF(GPIO_106, EMMC_DATA2,	PULL_UP),
+	PAD_NF(GPIO_107, EMMC_DATA3,	PULL_NONE),
+	PAD_NF(GPIO_74,  EMMC_DATA4,	PULL_UP),
+	PAD_NF(GPIO_75,  EMMC_DATA6,	PULL_UP),
+	PAD_NF(GPIO_87,  EMMC_DATA7,	PULL_UP),
+	PAD_NF(GPIO_88,  EMMC_DATA5,	PULL_UP),
+	PAD_NF(GPIO_109, EMMC_DS,	PULL_UP),
+};
+
+void mainboard_program_gpios(void)
+{
+	program_gpios(gpio_set_stage_ram, ARRAY_SIZE(gpio_set_stage_ram));
+
+	/* Re-muxing LPCCLK0 can hang the system if LPC is in use. */
+	if (CONFIG(AMD_LPC_DEBUG_CARD))
+		printk(BIOS_INFO, "eMMC not available due to LPC requirement\n");
+	else
+		program_gpios(emmc_gpios, ARRAY_SIZE(emmc_gpios));
+}