On Sat, Jun 16, 2018 at 11:15 PM, Vasily Khoruzhick anarsoul@gmail.com wrote:
On Sat, Jun 16, 2018 at 2:47 AM, Jagan Teki jagannadh.teki@gmail.com wrote:
On Wed, Jun 6, 2018 at 10:26 AM, Vasily Khoruzhick anarsoul@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
It boots for me from eMMC on Pinebook and Pine64-LTS, thus I have no hardware to debug it further.
Don't have these hardware with me.
Moreover, Linux also does calibration on A64 for eMMC, do you experience any issues with eMMC in Linux?
Yes I'm able to detect eMMC in Linux.
So we need to investigate what makes failing mode.