rockchip: rk3588-generic: Add support for USB OTG

Add support for USB OTG, RockUSB and UMS to the generic RK3588S/RK3588
target.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
diff --git a/arch/arm/dts/rk3588-generic-u-boot.dtsi b/arch/arm/dts/rk3588-generic-u-boot.dtsi
index 853ed58..225dfa0 100644
--- a/arch/arm/dts/rk3588-generic-u-boot.dtsi
+++ b/arch/arm/dts/rk3588-generic-u-boot.dtsi
@@ -1,3 +1,25 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 
 #include "rk3588s-u-boot.dtsi"
+
+&u2phy0 {
+	status = "okay";
+};
+
+&u2phy0_otg {
+	status = "okay";
+};
+
+&usbdp_phy0 {
+	status = "okay";
+};
+
+&usbdp_phy0_u3 {
+	status = "okay";
+};
+
+&usb_host0_xhci {
+	dr_mode = "peripheral";
+	maximum-speed = "high-speed";
+	status = "okay";
+};
diff --git a/arch/arm/dts/rk3588-generic.dts b/arch/arm/dts/rk3588-generic.dts
index baafe74..95d7576 100644
--- a/arch/arm/dts/rk3588-generic.dts
+++ b/arch/arm/dts/rk3588-generic.dts
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
 /*
- * Minimal generic DT for RK3588S/RK3588 with eMMC and SD-card enabled
+ * Minimal generic DT for RK3588S/RK3588 with eMMC, SD-card and USB OTG enabled
  */
 
 /dts-v1/;