[U-Boot] [BISECTED] [BUG]: MMC initialization hang at Zynq Z-turn board

[Faiz Abbas]

Hi,

On 01/08/19 7:51 AM, Peng Fan wrote:
>> Subject: [BISECTED] [BUG]: MMC initialization hang at Zynq Z-turn board
>>
>> Hello,
>>
>> I am running Zynq Z-turn board and I face the following issue with MMC
>> initialization in SPL.
>> With u-boot master, I see the message similar to the following:
>>
>> U-Boot SPL 2019.07-00352-gb5f3eb3393 (Jul 31 2019 - 20:03:42 +0300) mmc
>> boot Trying to boot from MMC1
>>
>> Then, the u-boot waits forever. I've tried to add debug prints and found that
>> execution is stalled somewhere inside mmc_init().
>> Using bisect I've found that the following broken commit is the following:
> 
> https://gitlab.denx.de/u-boot/custodians/u-boot-mmc/commit/41a9fab8dac841afb70a059668abaf14d47cdf59
> 
> Would this patch help?
> 

Yeah, this mostly looks like a NULL pointer access issue.

Thanks,
Faiz