On 05.12.2016 13:00, Felipe Balbi wrote:
(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?
usb/core/message.c usb_get_descritptor() sets the -61 (ENODATA) if
the control transfer received data, but the descriptor type byte doesn't match.
(as the 8 zeros probably would do)
does xhci verbose debugging show any control transfer related messages during this?
echo -n 'module xhci_hcd =p' > /sys/kernel/debug/dynamic_debug/control
-Mathias
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