参照am335x-evm.dts编写dts文件，对于文件中nand flash的时序属性，
gpmc,sync-clk-ps = <0>; > + gpmc,cs-on-ns = <0>; > + gpmc,cs-rd-off-ns = <40>; > + gpmc,cs-wr-off-ns = <40>; > + gpmc,adv-on-ns = <0>; > + gpmc,adv-rd-off-ns = <25>; > + gpmc,adv-wr-off-ns = <25>; > + gpmc,we-on-ns = <0>; > + gpmc,we-off-ns = <20>; > + gpmc,oe-on-ns = <3>; > + gpmc,oe-off-ns = <30>; > + gpmc,access-ns = <30>; > + gpmc,rd-cycle-ns = <40>; > + gpmc,wr-cycle-ns = <40>; > + gpmc,wait-pin = <0>; > + gpmc,wait-on-read; > + gpmc,wait-on-write; > + gpmc,bus-turnaround-ns = <0>; > + gpmc,cycle2cycle-delay-ns = <0>; > + gpmc,clk-activation-ns = <0>; > + gpmc,wait-monitoring-ns = <0>; > + gpmc,wr-access-ns = <40>; > + gpmc,wr-data-mux-bus-ns = <0>;
这些参数跟数据手册上并不完全一致，参照数据手册应该如何填写这些参数呢？
请专家指点
