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通过PCIE读取PSC寄存器



我现在将PSC,L2,MSM,DDR3都通过PCIe映射到PC上,现在通过PC访问L2、MSM、DDR3都是正常的,唯独PSC寄存器读出来是FFFFFFFF,从0x02350000 - 0x02350FFF整个PSC空间都是FFFFFFFF,将PSC映射到PC,有什么不一样吗,谢谢!