USB2_PHY_PLL_CTRL_REG0
writel(reg, utmi->regs + USB2_PHY_PLL_CTRL_REG0);
ret = readl_poll_timeout(utmi->regs + USB2_PHY_PLL_CTRL_REG0, reg,
reg = readl(utmi->regs + USB2_PHY_PLL_CTRL_REG0);