It took a lot more effort than originally anticipated, but here it is. This is the driver from [0], updated to work with the current kernel. I've tested it on the rk3328-roc-cc board, both usb 2.0 and usb 3.0 devices detect on hotplug. [0] https://github.com/FireflyTeam/kernel/commits/roc-rk3328-cc/drivers/phy/rockchip/phy-rockchip-inno-usb3.c Peter Geis (5): phy: rockchip: add inno-usb3 phy driver dt-bindings: clean up rockchip grf binding document Documentation: bindings: add dt documentation for rockchip usb3 phy arm64: dts: rockchip: add usb3 to rk3328 devicetree arm64: dts: rockchip: enable usb3 on rk3328-roc-cc .../bindings/phy/phy-rockchip-inno-usb3.yaml | 157 +++ .../devicetree/bindings/soc/rockchip/grf.txt | 8 +- .../devicetree/bindings/usb/rockchip,dwc3.txt | 9 +- .../arm64/boot/dts/rockchip/rk3328-roc-cc.dts | 21 + arch/arm64/boot/dts/rockchip/rk3328.dtsi | 72 ++ drivers/phy/rockchip/Kconfig | 9 + drivers/phy/rockchip/Makefile | 1 + drivers/phy/rockchip/phy-rockchip-inno-usb3.c | 1107 +++++++++++++++++ 8 files changed, 1378 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb3.yaml create mode 100644 drivers/phy/rockchip/phy-rockchip-inno-usb3.c -- 2.20.1
