From 326ee2b0bced99ec3fcd6f26c87a0d86d045161f Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Wed, 20 Oct 2021 21:09:12 +0530
Subject: [PATCH] arm: dts: am642-sk: Add and Enable USB SuperSpeed Host Port
 in SPL

Add and Enable USB SuperSpeed Host Port in SPL.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
---
 arch/arm/dts/k3-am642-r5-sk.dts      | 40 ++++++++++++++++++++++++++++
 arch/arm/dts/k3-am642-sk-u-boot.dtsi | 33 +++++++++++++++++++++++
 2 files changed, 73 insertions(+)

diff --git a/arch/arm/dts/k3-am642-r5-sk.dts b/arch/arm/dts/k3-am642-r5-sk.dts
index 79eff8259f..71fcf61ff9 100644
--- a/arch/arm/dts/k3-am642-r5-sk.dts
+++ b/arch/arm/dts/k3-am642-r5-sk.dts
@@ -5,6 +5,8 @@
 
 /dts-v1/;
 
+#include <dt-bindings/mux/ti-serdes.h>
+#include <dt-bindings/phy/phy.h>
 #include "k3-am642.dtsi"
 #include "k3-am64-sk-lp4-1333MTs.dtsi"
 #include "k3-am64-ddr.dtsi"
@@ -107,6 +109,13 @@
 			AM64X_IOPAD(0x029c, PIN_INPUT_PULLUP, 0)	/* (C20) MMC1_SDWP */
 		>;
 	};
+
+	main_usb0_pins_default: main-usb0-pins-default {
+		u-boot,dm-spl;
+		pinctrl-single,pins = <
+			AM64X_IOPAD(0x02a8, PIN_OUTPUT, 0) /* (E19) USB0_DRVVBUS */
+		>;
+	};
 };
 
 &dmsc {
@@ -142,4 +151,35 @@
 	pinctrl-0 = <&main_mmc1_pins_default>;
 };
 
+&serdes_ln_ctrl {
+	idle-states = <AM64_SERDES0_LANE0_USB>;
+};
+
+&serdes_wiz0 {
+	status = "okay";
+};
+
+&serdes0 {
+	serdes0_usb_link: link@0 {
+		reg = <0>;
+		cdns,num-lanes = <1>;
+		#phy-cells = <0>;
+		cdns,phy-type = <PHY_TYPE_USB3>;
+		resets = <&serdes_wiz0 1>;
+	};
+};
+
+&usbss0 {
+	ti,vbus-divider;
+};
+
+&usb0 {
+	dr_mode = "host";
+	maximum-speed = "super-speed";
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_usb0_pins_default>;
+	phys = <&serdes0_usb_link>;
+	phy-names = "cdns3,usb3-phy";
+};
+
 #include "k3-am642-sk-u-boot.dtsi"
diff --git a/arch/arm/dts/k3-am642-sk-u-boot.dtsi b/arch/arm/dts/k3-am642-sk-u-boot.dtsi
index efbcfb36e9..95cf52c37f 100644
--- a/arch/arm/dts/k3-am642-sk-u-boot.dtsi
+++ b/arch/arm/dts/k3-am642-sk-u-boot.dtsi
@@ -110,3 +110,36 @@
 &cpsw_port2 {
 	status = "disabled";
 };
+
+&main_usb0_pins_default {
+	u-boot,dm-spl;
+};
+
+&serdes_ln_ctrl {
+	u-boot,mux-autoprobe;
+};
+
+&usbss0 {
+	u-boot,dm-spl;
+};
+
+&usb0 {
+	dr_mode = "host";
+	u-boot,dm-spl;
+};
+
+&serdes_wiz0 {
+	u-boot,dm-spl;
+};
+
+&serdes0_usb_link {
+	u-boot,dm-spl;
+};
+
+&serdes0 {
+	u-boot,dm-spl;
+};
+
+&serdes_refclk {
+	u-boot,dm-spl;
+};
-- 
2.39.5