1 files changed, 42 insertions, 0 deletions
diff --git a/src/mainboard/google/zork/variants/morphius/romstage.c b/src/mainboard/google/zork/variants/morphius/romstage.c
new file mode 100644
index 0000000000..876b836adc
--- /dev/null
+++ b/src/mainboard/google/zork/variants/morphius/romstage.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#include <stddef.h>
+#include <soc/romstage.h>
+#include <baseboard/variants.h>
+#include <ec/google/chromeec/ec.h>
+
+#include <gpio.h>
+#include <soc/gpio.h>
+#include <variant/gpio.h>
+#include <delay.h>
+
+void variant_romstage_entry(void)
+{
+	//SET WIFI_PCIE_RESET_L HIGH
+	gpio_set(WIFI_PCIE_RESET_L, 1);
+
+	/* Power the wifi card */
+	/* wait 10ms to discharge EN_PWR_WIFI to 0V */
+	mdelay(10);
+	gpio_set(EN_PWR_WIFI, 1);
+
+	/* SET WIFI_PCIE_RESET_L LOW */
+	gpio_set(WIFI_PCIE_RESET_L, 0);
+
+	/* Qualcomm Atheros NFA344A needs at least 10ms delay */
+	mdelay(10);
+
+	/* SET WIFI_PCIE_RESET_L HIGH */
+	gpio_set(WIFI_PCIE_RESET_L, 1);
+}
+
+static const struct soc_amd_gpio morphius_gpio_set_wifi[] = {
+	/* EN_PWR_WIFI - Power off. Pull high in romstage.c */
+	PAD_GPO(GPIO_29, LOW),
+};
+
+const struct soc_amd_gpio *variant_wifi_romstage_gpio_table(size_t *size)
+{
+	*size = ARRAY_SIZE(morphius_gpio_set_wifi);
+	return morphius_gpio_set_wifi;
+}