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求助:DDR3与norflash在U-boot中配置之后在内核启动还要继续配置吗?

大家好:

     我的项目是用NORFLASH作为XIP启动以及存储内核的,ddr3和norflash的pin管脚以及相关配置已经在uboot阶段完成了,那么在内核启动过程中还需要再次对DDR3与NORFLASH配置吗?谢谢!