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VPDMA时钟使能,对SATA读写有影响

问题描述,当vpss没有初始化时,读写SATA接口,都是正常的。但是当初始化完vpss之后,跟进代码,当使能vpdma时钟使能时,再去读写sata口就有问题。但是从硬件和软件的角度看,这两者都没有直接联系,所以很奇怪这个问题,但肯定的是确实是影响到了,不知道影响到什么地方

异常报错