IMX_OCOTP_ADDR_DATA3
writel(0, priv->base + IMX_OCOTP_ADDR_DATA3);
writel(0, priv->base + IMX_OCOTP_ADDR_DATA3);
writel(0, priv->base + IMX_OCOTP_ADDR_DATA3);
writel(*buf, priv->base + IMX_OCOTP_ADDR_DATA3);