PHY_28NM_OTG_REG
reg = readl(base + PHY_28NM_OTG_REG) | PHY_28NM_OTG_PU_OTG;
writel(reg & ~PHY_28NM_OTG_CONTROL_BY_PIN, base + PHY_28NM_OTG_REG);
val = readw(base + PHY_28NM_OTG_REG);
writew(val, base + PHY_28NM_OTG_REG);