MLK-17586-1 ARM64: dts: imx7ulp-evk: add eMMC HS200 support for B0 chip
USDHC internal IC data handle bug already fixed on i.MX7ULP B0, so add
HS200 support first.
To let HS200 work on i.MX7ULP REV A3 board, need to do the following
rework, otherwise, switch to HS200 will always meet error, caused by
the voltage change make eMMC work not stable, this rework fix the eMMC
I/O voltage to 1.8v, align with the MMC spec.
1,remove TF sd slot, replace eMMC chip
2,fix eMMC I/O voltage to 1.8v, remove R183, short TP3 and TP89
3,add R107, make eMMC boot work
For i.MX7ULP REV B1 board, do not need this rework, board already fix the
eMMC I/O voltage to 1.8v
Acked-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
projects / linux.git / commit