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

[Faiz Abbas]

Hi Matwey,

On 01/08/19 1:03 PM, Matwey V. Kornilov wrote:
> Hi all,
> 
> чт, 1 авг. 2019 г. в 09:48, Faiz Abbas <faiz_abbas at ti.com>:
>>
>> 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.
> 
> Unfortunately, 41a9fab8 doesn't help me.... :-(
> Behavior remains the same.
> 

You need to implement the same thing with your driver (I assume you are
using zynq_sdhci.c?). sdhci_setup_cfg() requires a valid host->mmc->dev.
Move that assignment to above the sdhci_set_cfg() call in your driver.

Thanks,
Faiz