i use u-boot-imx(2020.04) in imx8mm board, it can't load some driver, example: led、pwm、 67191……
the phenomenon is: in the uboot starting process,there is no "***** led probe *****" to be printed,and led can't be light;
but i use led cmd after entry uboot:
led status toggle
it can be printed, and led status can be on or off.
