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Re: musb: am3358: having problem with high-speed on usb1 at peripheral

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On 08/16/2016 04:31 PM, Felipe Balbi wrote:
> Hi,
>
> Ayaka <ayaka@soulik.info> writes:
>>> ayaka <ayaka@soulik.info> writes:
>>>>> On 08/13/2016 01:44 AM, Greg KH wrote:
>>>>>> On Sat, Aug 13, 2016 at 12:38:46AM +0800, ayaka wrote:
>>>>>>
>>>>>>> On 08/12/2016 03:40 PM, Greg KH wrote:
>>>>>>>> On Fri, Aug 12, 2016 at 10:23:15AM +0800, ayaka wrote:
>>>>>>>> Hello all:
>>>>>>>>     I recently add a support for customize am3358 board using the branch
>>>>>>>> processor-sdk-linux-03.00.00 from Ti git. But I meet a problem with musb
>>>>>>>> at the peripheral mode.
>>>>>>> Then you are going to have to get support from TI for this, nothing we
>>>>>>> can do here about random vendor kernel trees, sorry.
>>>>>>>
>>>>>>> If you can use the 4.7 tree, or better yet, the 4.8-rc tree, then we
>>>>>> I have tried the 4.8-rc1, I meet the same problem.
>>>>> What problem is that exactly?
>>>> Sorry, the USB1 can't work at high speed gadget mode and have DMA problem.
>>>> musb-hdrc musb-hdrc.0.auto: Failed to request rx1.
>>>> musb-hdrc musb-hdrc.0.auto: musb_init_controller failed with status -517
>>> -517 is EPROBE_DEFER. Most likely DMA hasn't probed and MUSB is
>>> deferring to try later. This does _NOT_ MUSB can't work with
>>> DMA. Perhaps you didn't enable support for MUSB's DMA engine.
>>>
>> I have set the status of cppi41dma to okay in dts. And CONFIG_USB_TI_CPPI41_DMA,
>> CONFIG_TI_CPPI41 and CONFIG_TI_EDMA are enabled with build into kernel.
>>
>> Anything else I should do?
> no, that should do it. Since musb returned -EPROBE_DEFER, it will retry
> probing later. Check if musb probed fine. The easiest way is to check if
> you have anything in /sys/class/udc/
Yes, it has musb-hdrc.0.auto. But it doesn't mean that it fallback PIO mode?
Actually I don't care whether it use PIO or DMA, I just can't bear it 
work in USB 2.0 Full Speed mode, too slow.
>

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musb: am3358: having problem with high-speed on usb1 at peripheral ayaka <ayaka@soulik.info> - 2016-08-12 04:30 +0200
  Re: musb: am3358: having problem with high-speed on usb1 at  peripheral Greg KH <gregkh@linuxfoundation.org> - 2016-08-12 09:50 +0200
    Re: musb: am3358: having problem with high-speed on usb1 at  peripheral ayaka <ayaka@soulik.info> - 2016-08-12 18:40 +0200
      Re: musb: am3358: having problem with high-speed on usb1 at  peripheral Greg KH <gregkh@linuxfoundation.org> - 2016-08-12 19:50 +0200
        Re: musb: am3358: having problem with high-speed on usb1 at  peripheral ayaka <ayaka@soulik.info> - 2016-08-12 20:10 +0200
          Re: musb: am3358: having problem with high-speed on usb1 at peripheral Felipe Balbi <felipe.balbi@linux.intel.com> - 2016-08-16 09:20 +0200
            Re: musb: am3358: having problem with high-speed on usb1 at peripheral Ayaka <ayaka@soulik.info> - 2016-08-16 10:20 +0200
              Re: musb: am3358: having problem with high-speed on usb1 at peripheral Felipe Balbi <felipe.balbi@linux.intel.com> - 2016-08-16 10:40 +0200
                Re: musb: am3358: having problem with high-speed on usb1 at  peripheral ayaka <ayaka@soulik.info> - 2016-08-16 16:10 +0200
                Re: musb: am3358: having problem with high-speed on usb1 at peripheral Felipe Balbi <felipe.balbi@linux.intel.com> - 2016-08-18 08:40 +0200
        Re: musb: am3358: having performance problem with usb1 ayaka <ayaka@soulik.info> - 2016-08-15 23:00 +0200
  Re: musb: am3358: having problem with high-speed on usb1 at  peripheral Bin Liu <b-liu@ti.com> - 2016-08-19 03:50 +0200
    Re: musb: am3358: having problem with high-speed on usb1 at peripheral Ayaka <ayaka@soulik.info> - 2016-08-23 04:00 +0200
      Re: musb: am3358: having problem with high-speed on usb1 at  peripheral Bin Liu <b-liu@ti.com> - 2016-08-23 17:30 +0200

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