From: William Wu RK3328 has one USB 3.0 OTG controller which uses DWC_USB3 core's general architecture. It can act as static xHCI host controller, static device controller, USB 3.0/2.0 OTG basing on ID of USB3.0 PHY. Signed-off-by: William Wu Signed-off-by: Leonidas P. Papadakos --- NOTE: This binding still has issues. From the original thread: the rk3328 usb3-phy has an issue with detecting any plugin events after a previous device got removed - see the inno-usb3-phy driver in the vendor kernel. The current state is good-enough for enabling the USB3 attached LAN port of the NanoPi R2S. However, it might explode depending on your use-case. You've been warned. --- arch/arm64/boot/dts/rockchip/rk3328.dtsi | 27 ++++++++++++++++++++++++ 1 file changed, 27 insertions(+) --- a/arch/arm64/boot/dts/rockchip/rk3328.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3328.dtsi @@ -936,6 +936,33 @@ status = "disabled"; }; + usbdrd3: usb@ff600000 { + compatible = "rockchip,rk3328-dwc3", "rockchip,rk3399-dwc3"; + clocks = <&cru SCLK_USB3OTG_REF>, <&cru SCLK_USB3OTG_SUSPEND>, + <&cru ACLK_USB3OTG>; + clock-names = "ref_clk", "suspend_clk", + "bus_clk"; + #address-cells = <2>; + #size-cells = <2>; + ranges; + status = "disabled"; + + usbdrd_dwc3: dwc3@ff600000 { + compatible = "snps,dwc3"; + reg = <0x0 0xff600000 0x0 0x100000>; + interrupts = ; + dr_mode = "otg"; + phy_type = "utmi_wide"; + snps,dis_enblslpm_quirk; + snps,dis-u2-freeclk-exists-quirk; + snps,dis_u2_susphy_quirk; + snps,dis_u3_susphy_quirk; + snps,dis-del-phy-power-chg-quirk; + snps,dis-tx-ipgap-linecheck-quirk; + status = "disabled"; + }; + }; + gic: interrupt-controller@ff811000 { compatible = "arm,gic-400"; #interrupt-cells = <3>;