Hi, Guys, 1. I tested the USB3.0 DWC3 with latest Linux-4.9-rc7 on LS1043ardb board. But I got the below errors, this error is returned from dma_supported(dev, mask) while running " dma_set_mask_and_coherent" in function " xhci_plat_probe". ... [ 0.756166] xhci-hcd: probe of xhci-hcd.0.auto failed with error -5 [ 0.762438] xhci-hcd: probe of xhci-hcd.1.auto failed with error -5 [ 0.768712] xhci-hcd: probe of xhci-hcd.2.auto failed with error -5 [ 0.775049] usbcore: registered new interface driver usb-storage ... 2. Then, I applied 6 patches from Sriram: https://patchwork.kernel.org/patch/9434163/ https://patchwork.kernel.org/patch/9434155/ https://patchwork.kernel.org/patch/9434131/ https://patchwork.kernel.org/patch/9434165/ https://patchwork.kernel.org/patch/9434167/ https://patchwork.kernel.org/patch/9434133/ however, I got another error as below shows when I attach one USB disk to this board. It seems USB device return the 8 bytes descriptor, but all 8 byte data driver read are zero from the buffer received. Has any comment for this issue? usb 2-1: new SuperSpeed USB device number 2 using xhci-hcd [ 164.323396] usb 2-1: device descriptor read/8, error -61 [ 164.435180] usb 2-1: new SuperSpeed USB device number 2 using xhci-hcd [ 164.459380] usb 2-1: device descriptor read/8, error -61 [ 164.779230] usb 2-1: new SuperSpeed USB device number 3 using xhci-hcd [ 164.803350] usb 2-1: device descriptor read/8, error -61 [ 164.915181] usb 2-1: new SuperSpeed USB device number 3 using xhci-hcd [ 164.943393] usb 2-1: device descriptor read/8, error -61 [ 165.263231] usb 2-1: new SuperSpeed USB device number 4 using xhci-hcd [ 165.287352] usb 2-1: device descriptor read/8, error -61 [ 165.399181] usb 2-1: new SuperSpeed USB device number 4 using xhci-hcd [ 165.427394] usb 2-1: device descriptor read/8, error -61 [ 165.747231] usb 2-1: new SuperSpeed USB device number 5 using xhci-hcd [ 165.775347] usb 2-1: device descriptor read/8, error -61 [ 165.887181] usb 2-1: new SuperSpeed USB device number 5 using xhci-hcd [ 165.915396] usb 2-1: device descriptor read/8, error -61 [ 166.055194] usb usb2-port1: unable to enumerate USB device Best Regards Jerry Huang -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
