@FelSM The format you have used to define gpios for cs-gpios format seems bit odd to me. May be it is just my lack of knowledge, not 100% sure. Generally for allwinner boards, the format I have seen contains 4 parameter i.e. reference to pinctrl node either &pio or &r_pio, pin line number, gpio number and then state. You only have mentioned 3 parameters which makes me a bit confused about what pins you are trying to use as chip selects here.
