Commits
Ye Li committed f96ee855235
MLK-23574-48 imx8mm: Add DDR3L and DDR4 validation boards
Porting board codes, configurations, DTS and DDR initialization codes
for the DDR3L and DDR4 validation boards from imx_v2019.04
Ready functions:
- DDR3L board: SD, UART, I2C, USB host and NAND
FPGA on the board controls WDOG_B and ENET PHY reset, so reset
and ethernet can't work
- DDR4 board: SD/eMMC, I2C, ENET, Flexspi, UART and USB
Signed-off-by: Ye Li <ye.li@nxp.com>