usb: Add usb_phy driver to support operations on USB PHY

components/soc/esp32s3/usb_phy_periph.c

@@ -0,0 +1,23 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "soc/usb_phy_periph.h"
+#include "soc/gpio_sig_map.h"
+
+/*
+ Bunch of constants for USB peripheral: GPIO signals
+*/
+const usb_phy_signal_conn_t usb_phy_periph_signal = {
+	.extphy_vp_in = USB_EXTPHY_VP_IDX,
+	.extphy_vm_in = USB_EXTPHY_VM_IDX,
+	.extphy_rcv_in = USB_EXTPHY_RCV_IDX,
+	.extphy_oen_out = USB_EXTPHY_OEN_IDX,
+	.extphy_vpo_out = USB_EXTPHY_VPO_IDX,
+	.extphy_vmo_out = USB_EXTPHY_VMO_IDX,
+	.extphy_suspend_in = USB_EXTPHY_SUSPND_IDX,
+	.extphy_speed_in = USB_EXTPHY_SPEED_IDX,
+	.module = PERIPH_USB_MODULE
+};