omap_gpmc.c

		nand->options |= NAND_BUSWIDTH_16;

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

	/* select ECC scheme */
#if defined(CONFIG_NAND_OMAP_ELM)
	err = omap_select_ecc_scheme(nand, OMAP_ECC_BCH8_CODE_HW,
			CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE);
#elif defined(CONFIG_NAND_OMAP_BCH8)
	err = omap_select_ecc_scheme(nand, OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
			CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE);
#elif !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_NAND_SOFTECC)
	err = omap_select_ecc_scheme(nand, OMAP_ECC_HAM1_CODE_SW,
			0, 0);
#else
	err = omap_select_ecc_scheme(nand, OMAP_ECC_HAM1_CODE_HW,
			CONFIG_SYS_NAND_PAGE_SIZE, CONFIG_SYS_NAND_OOBSIZE);
#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;
}