On 20-03-26 18:01:09, Oliver Graute wrote: > Hello, > > What is the right way for using the new cdns3-imx glue usb driver on a > imx8qm soc with linux-next. I added this snippet in imx8qm.dtsi and > enabled the driver in the kernel configuration. > Hi Oliver, I just checked linux-next-0326, there is no imx8qm dtsi. When I worked this driver, I use a internal version based on v5.4, the dts layout is different with internal tree. Besides, you need a PHY driver for upstream version: https://patchwork.kernel.org/patch/11454581/ Peter > usbotg3: usb3@5b110000 { > compatible = "cdns,usb3"; > reg = <0x0 0x5B110000 0x0 0x10000>, > <0x0 0x5B130000 0x0 0x10000>, > <0x0 0x5B140000 0x0 0x10000>, > <0x0 0x5B160000 0x0 0x40000>, > <0x0 0x5B120000 0x0 0x10000>; > interrupt-parent = <&gic>; > interrupts = <GIC_SPI 271 IRQ_TYPE_LEVEL_HIGH>; > clocks = <&usb3_lpcg 1>, > <&usb3_lpcg 0>, > <&usb3_lpcg 5>, > <&usb3_lpcg 2>, > <&usb3_lpcg 3>; > clock-names = "usb3_lpm_clk", "usb3_bus_clk", "usb3_aclk", > "usb3_ipg_clk", "usb3_core_pclk"; > assigned-clocks = <&clk IMX_SC_R_USB_2 IMX_SC_PM_CLK_PER>, > <&clk IMX_SC_R_USB_2 IMX_SC_PM_CLK_MISC>, > <&clk IMX_SC_R_USB_2 IMX_SC_PM_CLK_MST_BUS>; > assigned-clock-rates = <125000000>, <12000000>, <250000000>; > power-domains = <&pd IMX_SC_R_USB_2>; > cdns3,usbphy = <&usb3phynop1>; > status = "disabled"; > }; > > In board dts I enabled this: > > &usbotg3 { > dr_mode = "host"; > status = "okay"; > }; > > > On probing I got: > > [ 2.932089] cdns-usb3 5b110000.usb3: missing host IRQ > > I also tried to enable "fsl,imx8qm-usb3" compatible buts this results > directly into a crash. > > What do I miss here? some comments would be helpful. > > Best Regards, > > Oliver -- Thanks, Peter Chen
