From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Thu, 29 Aug 2024 14:30:50 +0000 (+0200)
Subject: riscv: dts: thead: Add devicetree nodes for DWC3 (host USB) controller
X-Git-Tag: accepted/tizen/unified/x/20240830.151547~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4308eeb3ef9b95472f86f8753cef2ee40a069baa;p=platform%2Fkernel%2Flinux-thead.git

riscv: dts: thead: Add devicetree nodes for DWC3 (host USB) controller

Add DWC3 device controller and the needed glue nodes.

Ported from vendor kernel [1].

[1] https://gitee.com/thead-yocto/kernel.git

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Change-Id: I3e023ec8d778c44204fa2e67b107431fff36f035
---

diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
index 7eb123bdc2b9..059edc623924 100644
--- a/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
+++ b/arch/riscv/boot/dts/thead/th1520-lichee-pi-4a.dts
@@ -32,6 +32,26 @@
 	chosen {
 		stdout-path = "serial0:115200n8";
 	};
+
+	reg_usb_hub_vdd1v2: regulator-hub-vdd12-en {
+		compatible = "regulator-fixed";
+		regulator-name = "regulator-hub-vdd12-en";
+		regulator-min-microvolt = <1200000>;
+		regulator-max-microvolt = <1200000>;
+		gpio = <&pcal6408ahk_d 2 1>;
+		enable-active-high;
+
+	};
+
+	reg_usb_hub_vcc5v: regulator-hub-vcc5v-en {
+		compatible = "regulator-fixed";
+		regulator-name = "regulator-hub-vcc5v-en";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		gpio = <&pcal6408ahk_d 3 1>;
+		enable-active-high;
+
+	};
 };
 
 &uart0 {
@@ -204,3 +224,10 @@
 	pinctrl-0 = <&pinctrl_gmac1>;
 
 };
+
+&usb_1 {
+	hubswitch-gpio = <&porte 4 0>;
+	vbus-supply = <&soc_vbus_en_reg>;
+	hub1v2-supply = <&reg_usb_hub_vdd1v2>;
+	hub5v-supply = <&reg_usb_hub_vcc5v>;
+};
diff --git a/arch/riscv/boot/dts/thead/th1520.dtsi b/arch/riscv/boot/dts/thead/th1520.dtsi
index 6a03e059f169..f8b217eb9e23 100644
--- a/arch/riscv/boot/dts/thead/th1520.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520.dtsi
@@ -729,6 +729,12 @@
 			status = "okay";
 		};
 
+		usb3_drd: usb3_drd@ffec03f000 {
+			compatible = "thead,light-usb3-drd", "syscon";
+			reg = <0xff 0xec03f000 0x0 0x1000>;
+			status = "okay";
+		};
+
 		clk: clock-controller@ffef010000 {
 			compatible = "thead,light-fm-ree-clk";
 			reg = <0xff 0xef010000 0x0 0x1000>;
@@ -1129,5 +1135,34 @@
 			nvmem-cells = <&gmac1_mac_address>;
 			nvmem-cell-names = "mac-address";
 		};
+
+		usb_1: usb@ffec03f000 {
+			compatible = "thead,dwc3";
+			usb3-misc-regmap = <&miscsys_reg>;
+			usb3-drd-regmap = <&usb3_drd>;
+			clocks = <&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_CLK>,
+					<&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_CTRL_REF_CLK>,
+					<&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_PHY_REF_CLK>,
+					<&miscsys_clk_gate CLKGEN_MISCSYS_USB3_DRD_SUSPEND_CLK>;
+			clock-names = "drd", "ctrl", "phy", "suspend";
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+
+			usb: dwc3@ffe7040000 {
+				compatible = "snps,dwc3";
+				reg = <0xff 0xe7040000 0x0 0x10000>;
+				interrupt-parent = <&plic>;
+				interrupts = <68 IRQ_TYPE_LEVEL_HIGH>;
+				reg-shift = <2>;
+				reg-io-width = <4>;
+				maximum-speed = "super-speed";
+				dr_mode = "host";
+				dma-mask = <0xf 0xffffffff>;
+				snps,usb3_lpm_capable;
+				snps,usb_sofitpsync;
+				status = "okay";
+			};
+		};
 	};
 };