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

[Jaehoon Chung]

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!

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
> 
> 
>