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
arch/arm/include/asm/arch-sunxi/mmc.h | 6 +++++- arch/arm/mach-sunxi/Kconfig | 2 ++ drivers/mmc/Kconfig | 4 ++++ drivers/mmc/sunxi_mmc.c | 13 +++++++++++++ 4 files changed, 24 insertions(+), 1 deletion(-)