omap_gpmc.c

	nand->IO_ADDR_W = (void __iomem *)&gpmc_cfg->cs[cs].nand_cmd;
	nand->priv	= &bch_priv;
	nand->cmd_ctrl	= omap_nand_hwcontrol;
	nand->options	|= NAND_NO_PADDING | NAND_CACHEPRG;
	/* If we are 16 bit dev, our gpmc config tells us that */
	if ((readl(&gpmc_cfg->cs[cs].config1) & 0x3000) == 0x1000)
		nand->options |= NAND_BUSWIDTH_16;

	nand->chip_delay = 100;
	nand->ecc.layout = &omap_ecclayout;

	/* select ECC scheme */
#if defined(CONFIG_NAND_OMAP_ECCSCHEME)
	err = omap_select_ecc_scheme(nand, CONFIG_NAND_OMAP_ECCSCHEME,
			CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE);
#else
	/* pagesize and oobsize are not required to configure sw ecc-scheme */
	err = omap_select_ecc_scheme(nand, OMAP_ECC_HAM1_CODE_SW,
			0, 0);
#endif
	if (err)
		return err;

#ifdef CONFIG_SPL_BUILD
	if (nand->options & NAND_BUSWIDTH_16)
		nand->read_buf = nand_read_buf16;
	else
		nand->read_buf = nand_read_buf;
	nand->dev_ready = omap_spl_dev_ready;
#endif

	return 0;
}