[U-Boot] [PATCH v5 0/3] sunxi: fix eMMC stability issues on A64

[Jagan Teki]

On Wed, Jun 6, 2018 at 10:26 AM, Vasily Khoruzhick <anarsoul at gmail.com> wrote:
> eMMC seems to require new clocking mode and calibration on A64,
> otherwise it is pretty unstable on some boards (e.g. Pinebook)
> with some eMMCs.
>
> v2: - improve comment about calibration for eMMC on A64
>     - simplify ifdef-s around configuring delays
> v3: - fix fallout due to ifdef simplification in v2
> v4: - really fix ifdefs this time
> v5: - add new option for SoCs without new mode switch in CCM
>
> Vasily Khoruzhick (3):
>   sunxi-mmc: introduce new MMC_SUNXI_HAS_NEW_MODE_SWITCH option
>   sunxi-mmc: use new mode on A64
>   mmc: sunxi: run calibration on A64

I have still observing eMMC boot issue, this need to debug further

U-Boot SPL 2018.07-rc1-00164-g117d5917d2 (Jun 16 2018 - 15:12:28 +0530)
DRAM: 1024 MiB
Trying to boot from MMC2
unable to select a mode
mmc_load_image_raw_sector: mmc block read error
SPL: failed to boot from all boot devices
### ERROR ### Please RESET the board ###

Jagan.