1 files changed, 37 insertions, 0 deletions
diff --git a/src/mainboard/google/cherry/bootblock.c b/src/mainboard/google/cherry/bootblock.c
new file mode 100644
index 0000000000..6f61a8282b
--- /dev/null
+++ b/src/mainboard/google/cherry/bootblock.c
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <device/mmio.h>
+#include <soc/gpio.h>
+
+struct pad_func {
+	u8 pin_id;
+	u8 func;
+};
+
+#define PAD_FUNC(name, func) {PAD_##name##_ID, PAD_##name##_FUNC_##func}
+
+static void nor_set_gpio_pinmux(void)
+{
+	const struct pad_func *ptr = NULL;
+
+	/* GPIO 140 ~ 143 */
+	struct pad_func nor_pinmux[] = {
+		PAD_FUNC(SPIM2_CSB, SPINOR_CS),
+		PAD_FUNC(SPIM2_CLK, SPINOR_CK),
+		PAD_FUNC(SPIM2_MO, SPINOR_IO0),
+		PAD_FUNC(SPIM2_MI, SPINOR_IO1),
+	};
+
+	ptr = nor_pinmux;
+	for (size_t i = 0; i < ARRAY_SIZE(nor_pinmux); i++) {
+		gpio_set_pull((gpio_t){.id = ptr[i].pin_id},
+				GPIO_PULL_ENABLE, GPIO_PULL_UP);
+		gpio_set_mode((gpio_t){.id = ptr[i].pin_id}, ptr[i].func);
+	}
+}
+
+void bootblock_mainboard_init(void)
+{
+	nor_set_gpio_pinmux();
+}