IMX_OCOTP_ADDR_DATA2
writel(0, priv->base + IMX_OCOTP_ADDR_DATA2);
writel(0, priv->base + IMX_OCOTP_ADDR_DATA2);
writel(*buf, priv->base + IMX_OCOTP_ADDR_DATA2);
writel(0, priv->base + IMX_OCOTP_ADDR_DATA2);