[U-Boot] u-boot-mmc fails on almost every Tegra board

[Jaehoon Chung]

On 01/23/2018 01:24 PM, Jaehoon Chung wrote:
> Hi Stephen,
> 
> On 01/23/2018 10:39 AM, Jaehoon Chung wrote:
>> Hi Stephen,
>>
>> On 01/23/2018 02:02 AM, Stephen Warren wrote:
>>> Jaehoon,
>>>
>>> The latest commit in u-boot-mmc.git master branch fails on almost every Tegra board. The MMC device experiences an error during initialization and hence isn't available:
>>
>> Thanks for reporting this. I'm not sure but it seems that relevant to my fixing patch.
>>
>> commit 9546eb92cb648a8bba0aa9d5930ac751e6e5b9a4
>> Author: Jaehoon Chung <jh80.chung at samsung.com>
>> Date:   Wed Jan 17 19:36:58 2018 +0900
>>
>>     mmc: fix the wrong disabling clock
>>     
>>     When power is off, clock is not disabling.
>>     Because it's passed to 1, mmc->clock should be set to f_min value.
>>     Some drivers can't initialize the eMMC/SD card with current status.
>>     
>>     This patch is to fix the disabling clock value to 0.
>>     
>>     Fixes: 2e7410d76ad1 ("mmc: disable the mmc clock during power off")
>>     
>>     Signed-off-by: Jaehoon Chung <jh80.chung at samsung.com>
>>     Reviewed-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
>>     Tested-by: Guillaume GARDET <guillaume.gardet at free.fr>
>>     Tested-by: Anand Moon <linux.amoon at gmail.com>
>>
>> Will check on today. And share the result. Thanks!
> 
> I reproduced this issue. i will send the patch for fixing. Thanks!

I sent the patch..refer to the below URL. If it's ok, let me know.

http://patchwork.ozlabs.org/patch/864607/

Best Regards,
Jaehoon Chung

> 
> Best Regards,
> Jaehoon Chung
> 
>>
>> Best Regards,
>> Jaehoon Chung
>>
>>>
>>> U-Boot 2018.01-05974-gb9b4f146c9 (Jan 22 2018 - 09:18:42 -0700), Build: jenkins-u-boot-denx_uboot_mmc-master-build-U_BOOT_BOARD=p2371-2180-151
>>>
>>> TEGRA210
>>> Model: NVIDIA P2371-2180
>>> Board: NVIDIA P2371-2180
>>> DRAM:  3.5 GiB
>>> MMC:   sdhci at 700b0000: 1, sdhci at 700b0600: 0
>>> tegra_mmc_send_cmd_bounced: waiting for status update
>>> mmc_init: -110, time 1068
>>> *** Warning - No block device, using default environment
>>>
>>>
>>>
>>
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