XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1
reg = RD4(sc, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
WR4(sc, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1, reg);
reg = RD4(sc, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1);
WR4(sc, XUSB_PADCTL_IOPHY_MISC_PAD_S0_CTL1, reg);