[U-Boot] [PATCH 0/6] usb: ci_udc: fixes and cleanups

[Jörg Krause]

On 07/01/2014 11:36 PM, Stephen Warren wrote:
> [snip]
> Can you please try one more thing:
>
> Go back to u-boot-usb/master plus just your board support patches. Apply
> the following and test that:
>
>> diff --git a/drivers/usb/gadget/ci_udc.c b/drivers/usb/gadget/ci_udc.c
>> index a6433e8d2d8d..13be1b73d3d1 100644
>> --- a/drivers/usb/gadget/ci_udc.c
>> +++ b/drivers/usb/gadget/ci_udc.c
>> @@ -209,9 +209,9 @@ ci_ep_alloc_request(struct usb_ep *ep, unsigned int gfp_flags)
>>          ci_req = memalign(ARCH_DMA_MINALIGN, sizeof(*ci_req));
>>          if (!ci_req)
>>                  return NULL;
>> +       memset(ci_req, 0, sizeof(*ci_req));
>>   
>>          INIT_LIST_HEAD(&ci_req->queue);
>> -       ci_req->b_buf = 0;
>>   
>>          if (num == 0)
>>                  controller.ep0_req = ci_req;
> Thanks.

Applied and tested with printf in cache.c enabled. ttp runs more than 
three times in row without a timeout error.

    => reset
    resetting ...
    HTLLCLLC

    U-Boot 2014.07-rc3-g88eca85-dirty (Jul 02 2014 - 00:39:20)

    CPU:   Freescale i.MX28 rev1.2 at 454 MHz
    BOOT:  NAND, 3V3
    DRAM:  64 MiB
    NAND:  128 MiB
    In:    serial
    Out:   serial
    Err:   serial
    Net:   usb_ether [PRIME]
    Hit any key to stop autoboot:  0
    => tftp imx28-airlino.dtb
    using ci_udc, OUT ep- IN ep- STATUS ep-
    MAC 00:19:b8:00:00:02
    HOST MAC 00:19:b8:00:00:01
    high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
    USB network up!
    Using usb_ether device
    TFTP from server 10.0.0.1; our IP address is 10.0.0.2
    Filename 'imx28-airlino.dtb'.
    Load address: 0x40008000
    Loading: ##
          2.1 MiB/s
    done
    Bytes transferred = 18003 (4653 hex)
    CACHE: Misaligned operation at range [40008000, 4000c653]
    =>
    CACHE: Misaligned operation at range [43fd0b08, 43fd0b60]
    CACHE: Misaligned operation at range [43fd0b14, 43fd0b60]
    using ci_udc, OUT ep- IN ep- STATUS ep-
    MAC 00:19:b8:00:00:02
    HOST MAC 00:19:b8:00:00:01
    high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
    USB network up!
    Using usb_ether device
    TFTP from server 10.0.0.1; our IP address is 10.0.0.2
    Filename 'imx28-airlino.dtb'.
    Load address: 0x40008000
    Loading: ##
          3.4 MiB/s
    done
    Bytes transferred = 18003 (4653 hex)
    CACHE: Misaligned operation at range [40008000, 4000c653]
    =>
    CACHE: Misaligned operation at range [43fd0b08, 43fd0b60]
    CACHE: Misaligned operation at range [43fd0b14, 43fd0b60]
    using ci_udc, OUT ep- IN ep- STATUS ep-
    MAC 00:19:b8:00:00:02
    HOST MAC 00:19:b8:00:00:01
    high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
    USB network up!
    Using usb_ether device
    TFTP from server 10.0.0.1; our IP address is 10.0.0.2
    Filename 'imx28-airlino.dtb'.
    Load address: 0x40008000
    Loading: ##
          4.3 MiB/s
    done
    Bytes transferred = 18003 (4653 hex)
    CACHE: Misaligned operation at range [40008000, 4000c653]
    =>
    CACHE: Misaligned operation at range [43fd0b08, 43fd0b60]
    CACHE: Misaligned operation at range [43fd0b14, 43fd0b60]
    using ci_udc, OUT ep- IN ep- STATUS ep-
    MAC 00:19:b8:00:00:02
    HOST MAC 00:19:b8:00:00:01
    high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
    USB network up!
    Using usb_ether device
    TFTP from server 10.0.0.1; our IP address is 10.0.0.2
    Filename 'imx28-airlino.dtb'.
    Load address: 0x40008000
    Loading: ##
          5.7 MiB/s
    done
    Bytes transferred = 18003 (4653 hex)
    CACHE: Misaligned operation at range [40008000, 4000c653]
    =>
    CACHE: Misaligned operation at range [43fd0b08, 43fd0b60]
    CACHE: Misaligned operation at range [43fd0b14, 43fd0b60]
    using ci_udc, OUT ep- IN ep- STATUS ep-
    MAC 00:19:b8:00:00:02
    HOST MAC 00:19:b8:00:00:01
    high speed config #1: 2 mA, Ethernet Gadget, using CDC Ethernet
    USB network up!
    Using usb_ether device
    TFTP from server 10.0.0.1; our IP address is 10.0.0.2
    Filename 'imx28-airlino.dtb'.
    Load address: 0x40008000
    Loading: ##
          4.3 MiB/s
    done
    Bytes transferred = 18003 (4653 hex)
    CACHE: Misaligned operation at range [40008000, 4000c653]