io remap : mapphysicaladdresstokernelvirtualaddress，wecanusekernelvirtualaddresstoaccessregister.1.getphysicaladdresresressrsssrer wecanuseanyothermethodtogetphysical。
2.mapphysicaladdresstokernelvirtualaddressp-mappedbaseaddr _ p=io remap (p-cxdsb，p-RES字节)； 3.readorwriteiowrite 32 (值，p-mappedbaseaddr_p ) remappedoffset/4 )； 3358 www.Sina.com/# define AP _ glb _ reg _ base _ addr0x 00510000 # define AP _ sys _ USB3_0_ phy _ CFG3_ addr void __iomem * addr2； addr1=io remap (AP _ sys _ USB3_0_ phy _ CFG3_ addr，4 )； addr2=io remap (AP _ sys _ USB3_0_ ctrl _ addr，4 )； value=readl(addr1； value|=(0x1ap _ sys _ USB3_0_ phy _ CFG3_ vbusvldext _ LSB )； 写入(值，addr1)； value=readl(addr2； value|=(0x1ap _ sys _ USB3_0_ ctrl _ vbusvalid _ LSB )； 写入(值，addr2)； }