UTMI_PLL_CTRL_REG
reg = readl(PORT_REGS(port) + UTMI_PLL_CTRL_REG);
writel(reg, PORT_REGS(port) + UTMI_PLL_CTRL_REG);
ret = readl_poll_timeout(PORT_REGS(port) + UTMI_PLL_CTRL_REG, reg,