ARM: dts: rockchip: add rk3036 usb2phy nodes and enable

A patch from »usb-phy support for the old rk3036 soc« in state Mainline for linux-kernel

From: Heiko Stuebner <heiko@...> Date: Sat, 3 May 2025 14:37:04 +0200

Commit-Message

The rk3036 does contain a usb2phy, just until now it was just used implicitly without additional configuration. As we now have the bits in place for it getting actually controlled, add the necessary phy-node to the GRF simple-mfd. Enable the phy-ports in the same patch to not create bisectability issues, as hooking up the phys to the usb controllers would create probe deferrals until a board enables them. Doing everything in one patch, solves that issue. Only rk3036-kylin actually enabled the usb controllers, so is the only board affected. Signed-off-by: Heiko Stuebner <heiko@...>

Patch-Comment

arch/arm/boot/dts/rockchip/rk3036-kylin.dts | 12 +++++++ arch/arm/boot/dts/rockchip/rk3036.dtsi | 35 +++++++++++++++++++++ 2 files changed, 47 insertions(+)

Statistics

  • 47 lines added
  • 0 lines removed

Changes

----------------- arch/arm/boot/dts/rockchip/rk3036-kylin.dts ------------------
index 4f928c7898e9..51a74f79c935 100644
@@ -382,6 +382,18 @@ &usb_otg {
status = "okay";
};
+&usb2phy {
+ status = "okay";
+};
+
+&usb2phy_host {
+ status = "okay";
+};
+
+&usb2phy_otg {
+ status = "okay";
+};
+
&vop {
status = "okay";
};
-------------------- arch/arm/boot/dts/rockchip/rk3036.dtsi --------------------
index f4292b586bc2..fca21ebb224b 100644
@@ -213,6 +213,8 @@ usb_otg: usb@10180000 {
g-np-tx-fifo-size = <16>;
g-rx-fifo-size = <275>;
g-tx-fifo-size = <256 128 128 64 64 32>;
+ phys = <&usb2phy_otg>;
+ phy-names = "usb2-phy";
status = "disabled";
};
@@ -224,6 +226,8 @@ usb_host: usb@101c0000 {
clocks = <&cru HCLK_OTG1>;
clock-names = "otg";
dr_mode = "host";
+ phys = <&usb2phy_host>;
+ phy-names = "usb2-phy";
status = "disabled";
};
@@ -342,6 +346,37 @@ cru: clock-controller@20000000 {
grf: syscon@20008000 {
compatible = "rockchip,rk3036-grf", "syscon", "simple-mfd";
reg = <0x20008000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ usb2phy: usb2phy@17c {
+ compatible = "rockchip,rk3036-usb2phy";
+ reg = <0x017c 0x20>;
+ clocks = <&cru SCLK_OTGPHY0>;
+ clock-names = "phyclk";
+ clock-output-names = "usb480m_phy";
+ assigned-clocks = <&cru SCLK_USB480M>;
+ assigned-clock-parents = <&usb2phy>;
+ #clock-cells = <0>;
+ status = "disabled";
+
+ usb2phy_host: host-port {
+ interrupts = <GIC_SPI 53 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "linestate";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+
+ usb2phy_otg: otg-port {
+ interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 52 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "otg-bvalid", "otg-id",
+ "linestate";
+ #phy-cells = <0>;
+ status = "disabled";
+ };
+ };
power: power-controller {
compatible = "rockchip,rk3036-power-controller";
 
 

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