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From:   Tobias Schramm <t.schramm@manjaro.org>
To:     linux-usb@vger.kernel.org, linux-rockchip@lists.infradead.org,
        linux-phy@lists.infradead.org, devicetree@vger.kernel.org
Cc:     Rob Herring <robh+dt@kernel.org>, Heiko Stuebner <heiko@sntech.de>,
        Kishon Vijay Abraham I <kishon@ti.com>,
        Vinod Koul <vkoul@kernel.org>,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        Tobias Schramm <t.schramm@manjaro.org>
Subject: [PATCH 4/4] arm64: dts: rockchip: add USB support to RK3308 dts
Date:   Fri, 14 May 2021 12:27:34 +0200
Message-Id: <20210514102734.2091238-5-t.schramm@manjaro.org>
In-Reply-To: <20210514102734.2091238-1-t.schramm@manjaro.org>
References: <20210514102734.2091238-1-t.schramm@manjaro.org>
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The Rockchip RK3308 features an integrated USB 2.0 phy, an USB OTG
controller and OHCI/EHCI interfaces.
This patch adds all of those to the RK3308 dtsi and thereby enables USB
support on the RK3308.

Signed-off-by: Tobias Schramm <t.schramm@manjaro.org>
---
 arch/arm64/boot/dts/rockchip/rk3308.dtsi | 75 ++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index 0c5fa9801e6f..80fd802d6c15 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -177,6 +177,43 @@ reboot-mode {
 		};
 	};
 
+	usb2phy_grf: syscon@ff008000 {
+		compatible = "rockchip,rk3308-usb2phy-grf", "syscon",
+			     "simple-mfd";
+		reg = <0x0 0xff008000 0x0 0x4000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		u2phy: usb2-phy@100 {
+			compatible = "rockchip,rk3308-usb2phy";
+			reg = <0x100 0x10>;
+			clocks = <&cru SCLK_USBPHY_REF>;
+			clock-names = "phyclk";
+			clock-output-names = "usb480m_phy";
+			#clock-cells = <0>;
+			assigned-clocks = <&cru USB480M>;
+			assigned-clock-parents = <&u2phy>;
+			status = "disabled";
+
+			u2phy_otg: otg-port {
+				#phy-cells = <0>;
+				interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "otg-bvalid", "otg-id",
+						  "linestate";
+				status = "disabled";
+			};
+
+			u2phy_host: host-port {
+				#phy-cells = <0>;
+				interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "linestate";
+				status = "disabled";
+			};
+		};
+	};
+
 	detect_grf: syscon@ff00b000 {
 		compatible = "rockchip,rk3308-detect-grf", "syscon", "simple-mfd";
 		reg = <0x0 0xff00b000 0x0 0x1000>;
@@ -579,6 +616,44 @@ spdif_tx: spdif-tx@ff3a0000 {
 		status = "disabled";
 	};
 
+	usb20_otg: usb@ff400000 {
+		compatible = "rockchip,rk3308-usb", "rockchip,rk3066-usb",
+			     "snps,dwc2";
+		reg = <0x0 0xff400000 0x0 0x40000>;
+		interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru HCLK_OTG>;
+		clock-names = "otg";
+		dr_mode = "otg";
+		g-np-tx-fifo-size = <16>;
+		g-rx-fifo-size = <280>;
+		g-tx-fifo-size = <256 128 128 64 32 16>;
+		phys = <&u2phy_otg>;
+		phy-names = "usb2-phy";
+		status = "disabled";
+	};
+
+	usb_host_ehci: usb@ff440000 {
+		compatible = "generic-ehci";
+		reg = <0x0 0xff440000 0x0 0x10000>;
+		interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru HCLK_HOST>, <&cru HCLK_HOST_ARB>, <&u2phy>;
+		clock-names = "usbhost", "arbiter", "utmi";
+		phys = <&u2phy_host>;
+		phy-names = "usb";
+		status = "disabled";
+	};
+
+	usb_host_ohci: usb@ff450000 {
+		compatible = "generic-ohci";
+		reg = <0x0 0xff450000 0x0 0x10000>;
+		interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru HCLK_HOST>, <&cru HCLK_HOST_ARB>, <&u2phy>;
+		clock-names = "usbhost", "arbiter", "utmi";
+		phys = <&u2phy_host>;
+		phy-names = "usb";
+		status = "disabled";
+	};
+
 	sdmmc: mmc@ff480000 {
 		compatible = "rockchip,rk3308-dw-mshc", "rockchip,rk3288-dw-mshc";
 		reg = <0x0 0xff480000 0x0 0x4000>;
-- 
2.31.1