SUN4I_REG_BUF3_ADDR
writel((id >> 5) & 0xFF, priv->base + SUN4I_REG_BUF3_ADDR);
dreg = SUN4I_REG_BUF3_ADDR;
(readl(priv->base + SUN4I_REG_BUF3_ADDR) << 5) |