> -----Original Message----- > From: Felipe Balbi [mailto:felipe.balbi@xxxxxxxxxxxxxxx] > Sent: Wednesday, December 07, 2016 4:41 PM > To: Jerry Huang <jerry.huang@xxxxxxx>; stern@xxxxxxxxxxxxxxxxxxx; > linux-usb@xxxxxxxxxxxxxxx; Mathias Nyman > <mathias.nyman@xxxxxxxxxxxxxxx>; Arnd Bergmann <arnd@xxxxxxxx> > Cc: Sriram Dash <sriram.dash@xxxxxxx>; Greg Kroah-Hartman > <gregkh@xxxxxxxxxxxxxxxxxxx> > Subject: RE: USB3.0 DWC3 can't work with latest Linux-4.9.rc7 > > > (no top-posting, please. It's the 2nd time I'm asking) Sorry for that I didn't notice it. > > Hi, > > Jerry Huang <jerry.huang@xxxxxxx> writes: > > Hi, Balbi, > > Sorry for later responding. > > I tested Linux 4.8, 4.7, 4.6 and 4.5, has the same issue: > > [ 0.756166] xhci-hcd: probe of xhci-hcd.0.auto failed with error -5 > > > > Then I found one patch (dwc3 initiated xhci probe problem in arm64 4.4 > kernel due to DMA setup) as below link, and I applied this patch to Linux-4.5, > the USB3.0 worked well! Therefore I applied this patch to Linux-4.9-rc7, and > the USB3.0 works well, too! Which used of_dma_configure(&xhci->dev, > dwc->dev->of_node) to set dma. > > https://patches.linaro.org/patch/65892/ > > > > However, in Linux-4.9-rc8, I found these 6 patches applied: > > 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/ > > and the commit ID are: > > 9863f279c1d48e366a179e76683247f239b30975 > > 0abcfafea32452f1d07901320efa8c17470dbeed > > ec3a36d441f2adcb8a0d3f6534ac488f2202c87a > > e9d10c536b26732d38d59fa3639b85bcd819837e > > 60478aead82d761c71a2a402b3fd2817af9e57ac > > 21f57eb38129042d2910d1e9b5fd36f3eea93637 > > > > And I got the below error when I attached one USB3.0 disk (Just USB2.0 > disk can work). From above 6 patches, it seems remove > dma_set_coherent_mask from file drivers/usb/dwc3/host.c. > > > > usb 4-1: new SuperSpeed USB device number 2 using xhci-hcd > > [ 16.224264] usb 4-1: device descriptor read/8, error -61 > > [ 16.336179] usb 4-1: new SuperSpeed USB device number 2 using xhci- > hcd > > [ 16.360257] usb 4-1: device descriptor read/8, error -61 > > [ 16.652196] usb 4-1: new SuperSpeed USB device number 3 using xhci- > hcd > > [ 16.676256] usb 4-1: device descriptor read/8, error -61 > > [ 16.788179] usb 4-1: new SuperSpeed USB device number 3 using xhci- > hcd > > [ 16.812255] usb 4-1: device descriptor read/8, error -61 > > > > So, how to handle this issue? > > oh, it's the DMA thing. We have patches going to next for this. Arnd, do you > know if next has all missing pieces? There was something pending on XHCI > IIRC, right? So, there are some patches for this issue? Where can I find it? I need these patches for my work. > > (keeping context below) > > > -----Original Message----- > > From: Felipe Balbi [mailto:felipe.balbi@xxxxxxxxxxxxxxx] > > Sent: Monday, December 05, 2016 7:00 PM > > To: Jerry Huang <jerry.huang@xxxxxxx>; stern@xxxxxxxxxxxxxxxxxxx; > > linux-usb@xxxxxxxxxxxxxxx; Mathias Nyman > > <mathias.nyman@xxxxxxxxxxxxxxx> > > Cc: Sriram Dash <sriram.dash@xxxxxxx> > > Subject: RE: USB3.0 DWC3 can't work with latest Linux-4.9.rc7 > > > > > > (no top-posting, please) > > > > Hi, > > > > it helps if you include maintainers for correct drivers. > scripts/get_maintainer.pl helps a lot. > > > > Jerry Huang <jerry.huang@xxxxxxx> writes: > >> And I tested USB2.0 disk, with Sriram's 6 patches, it works well. So Just > USB3.0 can't work. > >> > >> BTW, > >> The board with USB3.0 DWC3 controller and the USB3.0 disk work well > with Linux-4.1.8. > > > > alright, in that case you can bisect. Please do so and find the first commit > when this started happening. > > > >> -----Original Message----- > >> From: Jerry Huang > >> Sent: Monday, December 05, 2016 6:11 PM > >> To: stern@xxxxxxxxxxxxxxxxxxx; linux-usb@xxxxxxxxxxxxxxx > >> Cc: Sriram Dash <sriram.dash@xxxxxxx> > >> Subject: USB3.0 DWC3 can't work with latest Linux-4.9.rc7 > >> > >> 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 > > > > hmm, connection refused. Mathias, any idea? > > > > BTW, are you sure this board worked with *upstream* (as in, Linus' > > tree) > > v4.1 or were you using some vendor kernel which is based off of v4.1? > > > > Care to check v4.8, v4.7 and v4.6? > > > > -- > balbi -- 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
