[U-Boot] [PATCH V2] usb: ci_udc: Allocate the qTD list directly

[Stephen Warren <swarren@wwwdotorg.org>]

On 07/01/2014 04:47 PM, J?rg Krause wrote:
> 
> On 07/02/2014 12:36 AM, Stephen Warren wrote:
>> On 07/01/2014 04:34 PM, J?rg Krause wrote:
>>> On 07/01/2014 01:22 PM, J?rg Krause wrote:
>>>> On 07/01/2014 01:19 PM, Marek Vasut wrote:
>>>>> [snip]
>>>>>>> Can you edit arch/arm/cpu/arm926ejs/cache.c and change the debug() to
>>>>>>> printf() , then re-test please ? I suspect this might trap something
>>>>>>> still. Ah, and please test on u-boot-usb/master with this patch.
>>>>>> No additional output on the console.
>>>>> What does this mean? Do you see warning messages prefixed with
>>>>> "CACHE: " ?
>>>> No messages prefixed with "CACHE: ". Just the usual error message.
>>> I am sorry, but maybe I edited arch/arm/cpu/arm926ejs/ in a another
>>> branch and compiled in u-boot-usb. If I run now tftp with printf enabled
>>> in arch/arm/cpu/arm926ejs/cache.c I get the following "CACHE: " messages:
>>>
>>>     CACHE: Misaligned operation at range [40008000, 4000c653]
>>>     CACHE: Misaligned operation at range [43fd0b0c, 43fd0b60]
>> That happens right when you first use the UDC driver right? If so, I
>> hope that "[U-Boot] [PATCH 1/6] usb: ci_udc: fix ci_flush_{qh, qtd}
>> calls in ci_udc_probe()" will fix that.
> 
> Checkout clean u-boot-usb/master, applied board specific patches and
> applied the mentioned patch. Running tftp three times in a row:
> 
...
>     U-Boot 2014.07-rc3-g0b32423-dirty (Jul 02 2014 - 00:44:53)
...
>     => tftp imx28-airlino.dtb
...
>     Loading: ##
>          4.3 MiB/s
>     done
>     Bytes transferred = 18003 (4653 hex)
>     CACHE: Misaligned operation at range [40008000, 4000c653]

OK, that particular error happens well after the network transfer phase
of the tftp command, so is likely nothing to do with ci_udc. It'd be
great if you could track it down and fix it though.

Ah, I bet that 40008000 is your load address; the address that the
downloaded data is being copied to?