1 files changed, 61 insertions, 0 deletions
diff --git a/src/mainboard/google/puff/ramstage.c b/src/mainboard/google/puff/ramstage.c
new file mode 100644
index 000000000000..ff466a34a810
--- /dev/null
+++ b/src/mainboard/google/puff/ramstage.c
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <baseboard/variants.h>
+#include <ec/ec.h>
+#include <soc/gpio.h>
+#include <soc/ramstage.h>
+#include <variant/gpio.h>
+
+void mainboard_silicon_init_params(FSPS_UPD *supd)
+{
+	variant_devtree_update();
+}
+
+void __weak variant_devtree_update(void)
+{
+	/* Override dev tree settings per board */
+}
+
+void __weak variant_ramstage_init(void)
+{
+	/* Default weak implementation */
+}
+
+void __weak variant_mainboard_enable(struct device *dev)
+{
+	/* Override mainboard settings per board */
+}
+
+static void mainboard_init(struct device *dev)
+{
+	mainboard_ec_init();
+}
+
+static void mainboard_enable(struct device *dev)
+{
+	dev->ops->init = mainboard_init;
+	variant_mainboard_enable(dev);
+}
+
+static void mainboard_chip_init(void *chip_info)
+{
+	const struct pad_config *base_table;
+	const struct pad_config *override_table;
+	size_t base_gpios;
+	size_t override_gpios;
+
+	base_table = base_gpio_table(&base_gpios);
+	override_table = override_gpio_table(&override_gpios);
+
+	gpio_configure_pads_with_override(base_table,
+					base_gpios,
+					override_table,
+					override_gpios);
+
+	variant_ramstage_init();
+}
+
+struct chip_operations mainboard_ops = {
+	.init = mainboard_chip_init,
+	.enable_dev = mainboard_enable,
+};