IMX_OCOTP_ADDR_DATA1
writel(0, priv->base + IMX_OCOTP_ADDR_DATA1);
writel(*buf, priv->base + IMX_OCOTP_ADDR_DATA1);
writel(0, priv->base + IMX_OCOTP_ADDR_DATA1);
writel(0, priv->base + IMX_OCOTP_ADDR_DATA1);