XUSB_PADCTL_UPHY_PLL_P0_CTL4
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4, reg);
reg = RD4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4);
WR4(sc, XUSB_PADCTL_UPHY_PLL_P0_CTL4, reg);