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From: Roger Quadros <rogerq@kernel.org>
Date: Fri, 12 Apr 2024 15:01:59 +0300
Subject: [PATCH v7 2/3] arm64: dts: ti: k3-am62p: add the USB sub-system
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Message-Id: <20240412-for-v6-10-am62-usb-typec-dt-v7-2-93b827adf97e@kernel.org>
References: <20240412-for-v6-10-am62-usb-typec-dt-v7-0-93b827adf97e@kernel.org>
In-Reply-To: <20240412-for-v6-10-am62-usb-typec-dt-v7-0-93b827adf97e@kernel.org>
To: Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>, 
 Tero Kristo <kristo@kernel.org>, Rob Herring <robh@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>
Cc: Andrew Davis <afd@ti.com>, b-liu@ti.com, srk@ti.com, 
 r-gunasekaran@ti.com, linux-arm-kernel@lists.infradead.org, 
 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, 
 Roger Quadros <rogerq@kernel.org>

There are two USB instances available on the am62p5 starter kit. Include
and enable them for use on the board.

USB LPM feature is kept disabled as it is not supported.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Andrew Davis <afd@ti.com>
---
Changelog:
v7 - Rebased to v6.9-rc1. Added USB PHY2 region for Errata i2409.
v6 - Rebased on next-20240226
v5 - disabled USB LPM feature as it is not supported.
v4 - no change. Added Andrew's Reviewed-by
v3 - no change
v2:
- moved am62p changes to next patch
- use new compatible for USB PHY CTRL node

merge: am62p add USB PHY2 region

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 arch/arm64/boot/dts/ti/k3-am62p-main.dtsi   | 52 ++++++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi | 10 +++++
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts     | 67 +++++++++++++++++++++++++++++
 3 files changed, 129 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
index 88bc64111234..900d1f9530a2 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-main.dtsi
@@ -635,6 +635,58 @@ sdhci2: mmc@fa20000 {
 		status = "disabled";
 	};
 
+	usbss0: usb@f900000 {
+		compatible = "ti,am62-usb";
+		reg = <0x00 0x0f900000 0x00 0x800>,
+		      <0x00 0x0f908000 0x00 0x400>;
+		clocks = <&k3_clks 161 3>;
+		clock-names = "ref";
+		ti,syscon-phy-pll-refclk = <&usb0_phy_ctrl 0x0>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		power-domains = <&k3_pds 178 TI_SCI_PD_EXCLUSIVE>;
+		ranges;
+		status = "disabled";
+
+		usb0: usb@31000000 {
+			compatible = "snps,dwc3";
+			reg = <0x00 0x31000000 0x00 0x50000>;
+			interrupts = <GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */
+			<GIC_SPI 188 IRQ_TYPE_LEVEL_HIGH>; /* irq.0 */
+			interrupt-names = "host", "peripheral";
+			maximum-speed = "high-speed";
+			dr_mode = "otg";
+			snps,usb2-gadget-lpm-disable;
+			snps,usb2-lpm-disable;
+		};
+	};
+
+	usbss1: usb@f910000 {
+		compatible = "ti,am62-usb";
+		reg = <0x00 0x0f910000 0x00 0x800>,
+		      <0x00 0x0f918000 0x00 0x400>;
+		clocks = <&k3_clks 162 3>;
+		clock-names = "ref";
+		ti,syscon-phy-pll-refclk = <&usb1_phy_ctrl 0x0>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		power-domains = <&k3_pds 179 TI_SCI_PD_EXCLUSIVE>;
+		ranges;
+		status = "disabled";
+
+		usb1: usb@31100000 {
+			compatible = "snps,dwc3";
+			reg = <0x00 0x31100000 0x00 0x50000>;
+			interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */
+			<GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>; /* irq.0 */
+			interrupt-names = "host", "peripheral";
+			maximum-speed = "high-speed";
+			dr_mode = "otg";
+			snps,usb2-gadget-lpm-disable;
+			snps,usb2-lpm-disable;
+		};
+	};
+
 	fss: bus@fc00000 {
 		compatible = "simple-bus";
 		reg = <0x00 0x0fc00000 0x00 0x70000>;
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
index a84756c336d0..c71d9624ea27 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-wakeup.dtsi
@@ -18,6 +18,16 @@ chipid: chipid@14 {
 			reg = <0x14 0x4>;
 			bootph-all;
 		};
+
+		usb0_phy_ctrl: syscon@4008 {
+			compatible = "ti,am62-usb-phy-ctrl", "syscon";
+			reg = <0x4008 0x4>;
+		};
+
+		usb1_phy_ctrl: syscon@4018 {
+			compatible = "ti,am62-usb-phy-ctrl", "syscon";
+			reg = <0x4018 0x4>;
+		};
 	};
 
 	wkup_uart0: serial@2b300000 {
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index 6a9c99c5fb2a..6e7234659111 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -27,6 +27,8 @@ aliases {
 		spi0 = &ospi0;
 		ethernet0 = &cpsw_port1;
 		ethernet1 = &cpsw_port2;
+		usb0 = &usb0;
+		usb1 = &usb1;
 	};
 
 	chosen {
@@ -297,6 +299,12 @@ AM62PX_IOPAD(0x01b0, PIN_OUTPUT, 2) /* (G20) MCASP0_ACLKR.UART1_TXD */
 		bootph-all;
 	};
 
+	main_usb1_pins_default: main-usb1-default-pins {
+		pinctrl-single,pins = <
+			AM62PX_IOPAD(0x0258, PIN_INPUT, 0) /* (G21) USB1_DRVVBUS */
+		>;
+	};
+
 	main_wlirq_pins_default: main-wlirq-default-pins {
 		pinctrl-single,pins = <
 			AM62PX_IOPAD(0x0128, PIN_INPUT, 7) /* (K25) MMC2_SDWP.GPIO0_72 */
@@ -340,6 +348,36 @@ AM62PX_IOPAD(0x0124, PIN_INPUT, 7) /* (J25) MMC2_SDCD.GPIO0_71 */
 	};
 };
 
+&main_i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_i2c0_pins_default>;
+	clock-frequency = <400000>;
+
+	typec_pd0: usb-power-controller@3f {
+		compatible = "ti,tps6598x";
+		reg = <0x3f>;
+
+		connector {
+			compatible = "usb-c-connector";
+			label = "USB-C";
+			self-powered;
+			data-role = "dual";
+			power-role = "sink";
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					usb_con_hs: endpoint {
+						remote-endpoint = <&usb0_hs_ep>;
+					};
+				};
+			};
+		};
+	};
+};
+
 &main_i2c1 {
 	status = "okay";
 	pinctrl-names = "default";
@@ -466,6 +504,35 @@ cpsw3g_phy1: ethernet-phy@1 {
 	};
 };
 
+&usbss0 {
+	status = "okay";
+	ti,vbus-divider;
+};
+
+&usbss1 {
+	status = "okay";
+	ti,vbus-divider;
+};
+
+&usb0 {
+	usb-role-switch;
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	port@0 {
+		reg = <0>;
+		usb0_hs_ep: endpoint {
+			remote-endpoint = <&usb_con_hs>;
+		};
+	};
+};
+
+&usb1 {
+	dr_mode = "host";
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_usb1_pins_default>;
+};
+
 &mcasp1 {
 	status = "okay";
 	#sound-dai-cells = <0>;

-- 
2.34.1