linux-kernel - [PATCH 3/4] arm64: dts: allwinner: h6: add USB3 device nodes

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Message-Id: <20191020134229.1216351-4-megous@megous.com>
Date:   Sun, 20 Oct 2019 15:42:28 +0200
From:   megous@...ous.com
To:     linux-sunxi@...glegroups.com,
        Kishon Vijay Abraham I <kishon@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>, Icenowy Zheng <icenowy@...c.io>,
        Thomas Gleixner <tglx@...utronix.de>,
        Arnd Bergmann <arnd@...db.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Paul Kocialkowski <paul.kocialkowski@...tlin.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Ondrej Jirman <megous@...ous.com>
Subject: [PATCH 3/4] arm64: dts: allwinner: h6: add USB3 device nodes

From: Icenowy Zheng <icenowy@...c.io>

Allwinner H6 SoC features USB3 functionality, with a DWC3 controller and
a custom PHY.

Add device tree nodes for them.

Signed-off-by: Ondrej Jirman <megous@...ous.com>
Signed-off-by: Icenowy Zheng <icenowy@...c.io>
Reviewed-by: Chen-Yu Tsai <wens@...e.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 32 ++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 0d5ea19336a1..80233db478e6 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -537,6 +537,38 @@
 			status = "disabled";
 		};
 
+		dwc3: dwc3@...0000 {
+			compatible = "snps,dwc3";
+			reg = <0x05200000 0x10000>;
+			interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_XHCI>,
+				 <&ccu CLK_BUS_XHCI>,
+				 <&rtc 0>;
+			clock-names = "ref", "bus_early", "suspend";
+			resets = <&ccu RST_BUS_XHCI>;
+			/*
+			 * The datasheet of the chip doesn't declare the
+			 * peripheral function, and there's no boards known
+			 * to have a USB Type-B port routed to the port.
+			 * In addition, no one has tested the peripheral
+			 * function yet.
+			 * So set the dr_mode to "host" in the DTSI file.
+			 */
+			dr_mode = "host";
+			phys = <&usb3phy>;
+			phy-names = "usb3-phy";
+			status = "disabled";
+		};
+
+		usb3phy: phy@...0000 {
+			compatible = "allwinner,sun50i-h6-usb3-phy";
+			reg = <0x5210000 0x10000>;
+			clocks = <&ccu CLK_USB_PHY1>;
+			resets = <&ccu RST_USB_PHY1>;
+			#phy-cells = <0>;
+			status = "disabled";
+		};
+
 		ehci3: usb@...1000 {
 			compatible = "allwinner,sun50i-h6-ehci", "generic-ehci";
 			reg = <0x05311000 0x100>;
-- 
2.23.0