[U-Boot] pxa310 SDHC support.

[aking_jin <jinxin16897123@163.com>]

On 2014-5-27 17:20, Marek Vasut wrote:
> On Tuesday, May 27, 2014 at 02:53:44 AM, aking_jin wrote:
>> On 2014/5/26 Mon 22:15, Marek Vasut wrote:
>>> On Monday, May 26, 2014 at 03:55:58 PM, aking wrote:
>>>
>>> [...]
>>>
>>>>>>> The PXA27x controller works even with SDXC , that is tested. I
>>>>>>> suspect there might be some change in the PXA3xx controller, but I
>>>>>>> don't really know for sure. You'd have to check.
>>>>>> Thank you for your answer.  are you using SD mode or SPI Mode? which
>>>>>> version are you using?
>>>>> I believe the pxa_mmc_gen.c is what needs to be used. There is no other
>>>>> PXA MMC driver in U-Boot mainline. I now noticed it has some basic
>>>>> monahans (pxa3xx) support too.
>>>>>
>>>>            Could you give out a log with MACRO CONFIG_MMC_TRACE on your
>>>>
>>>> pxa27x device ? any initialize ,read ,write, erase operation?
>>>>
>>>>        Sorry for disturb you.
>>> No, I cannot, sorry. I don't have the PXA27x device handy.
>> Thanks , are you using SPI mode or SD mode with your SDXC card? This is
>> Important.
> SD mode.
     In recently test,  the mmc clock seemed didn't start successfully 
after stop mmc clock.  if the function pxa_mmc_stop_clock was NOT used. 
the data sent to sdcard was corrupt. That's annoyed.
     Could you provide a way to solve the problem?
>
> Best regards,
> Marek Vasut
Best Regards,
Aking jin