nand/raw/omap2.c

17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/nand-ecc-sw-bch.h>
19 #include <linux/mtd/rawnand.h>
20 #include <linux/mtd/partitions.h>
30 #include <linux/platform_data/mtd-nand-omap2.h>
185 static inline struct omap_nand_info *mtd_to_omap(struct mtd_info *mtd)
187 	return container_of(mtd_to_nand(mtd), struct omap_nand_info, nand);
447 	struct mtd_info *mtd = nand_to_mtd(chip);
454 	if (len <= mtd->oobsize)
468 	struct mtd_info *mtd = nand_to_mtd(chip);
475 	if (len <= mtd->oobsize)
535 	struct mtd_info *mtd = nand_to_mtd(&info->nand);
538 	if (len <= mtd->oobsize || force_8bit) {
577 	struct mtd_info *mtd = nand_to_mtd(&info->nand);
582 	if (len <= mtd->oobsize || force_8bit) {
993  * @mtd:	MTD device structure
1001 static int _omap_calculate_ecc_bch(struct mtd_info *mtd,
1004 	struct omap_nand_info *info = mtd_to_omap(mtd);
1137  * @mtd:	MTD device structure
1143 static int omap_calculate_ecc_bch_multi(struct mtd_info *mtd,
1146 	struct omap_nand_info *info = mtd_to_omap(mtd);
1153 		ret = _omap_calculate_ecc_bch(mtd, dat, ecc_calc, i);
1387 	struct mtd_info *mtd = nand_to_mtd(chip);
1388 	struct omap_nand_info *info = mtd_to_omap(mtd);
1406 		ret = omap_calculate_ecc_bch_multi(mtd,
1412 		ret = mtd_ooblayout_set_eccbytes(mtd, ecc_calc,
1421 	info->data_out(chip, chip->oob_poi, mtd->oobsize, false);
1441 	struct mtd_info *mtd = nand_to_mtd(chip);
1442 	struct omap_nand_info *info = mtd_to_omap(mtd);
1479 				ret = _omap_calculate_ecc_bch(mtd,
1492 		ret = mtd_ooblayout_set_eccbytes(mtd, ecc_calc, chip->oob_poi,
1500 	info->data_out(chip, chip->oob_poi, mtd->oobsize, false);
1522 	struct mtd_info *mtd = nand_to_mtd(chip);
1523 	struct omap_nand_info *info = mtd_to_omap(mtd);
1546 						 mtd->writesize + BBM_LEN +
1555 		ret = omap_calculate_ecc_bch_multi(mtd,
1561 		ret = mtd_ooblayout_get_eccbytes(mtd, ecc_code,
1572 			mtd->ecc_stats.failed++;
1574 			mtd->ecc_stats.corrected += stat;
1724 static int omap_ooblayout_ecc(struct mtd_info *mtd, int section,
1727 	struct omap_nand_info *info = mtd_to_omap(mtd);
1744 static int omap_ooblayout_free(struct mtd_info *mtd, int section,
1747 	struct omap_nand_info *info = mtd_to_omap(mtd);
1759 	if (off >= mtd->oobsize)
1763 	oobregion->length = mtd->oobsize - off;
1773 static int omap_sw_ooblayout_ecc(struct mtd_info *mtd, int section,
1776 	struct nand_device *nand = mtd_to_nanddev(mtd);
1794 static int omap_sw_ooblayout_free(struct mtd_info *mtd, int section,
1797 	struct nand_device *nand = mtd_to_nanddev(mtd);
1810 	if (off >= mtd->oobsize)
1814 	oobregion->length = mtd->oobsize - off;
1826 	struct mtd_info *mtd = nand_to_mtd(chip);
1827 	struct omap_nand_info *info = mtd_to_omap(mtd);
1942 		mtd_set_ooblayout(mtd, &omap_ooblayout_ops);
1959 		mtd_set_ooblayout(mtd, &omap_sw_ooblayout_ops);
1982 		mtd_set_ooblayout(mtd, &omap_ooblayout_ops);
1996 		mtd_set_ooblayout(mtd, &omap_sw_ooblayout_ops);
2019 		mtd_set_ooblayout(mtd, &omap_ooblayout_ops);
2035 		mtd_set_ooblayout(mtd, &omap_ooblayout_ops);
2045 		chip->ecc.steps = mtd->writesize / chip->ecc.size;
2065 			 (mtd->writesize / chip->ecc.size));
2066 	if (mtd->oobsize < min_oobbytes) {
2069 			min_oobbytes, mtd->oobsize);
2184 	struct mtd_info			*mtd;
2209 	mtd			= nand_to_mtd(nand_chip);
2210 	mtd->dev.parent		= &pdev->dev;
2213 	if (!mtd->name) {
2214 		mtd->name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
2216 		if (!mtd->name) {
2255 	err = mtd_device_register(mtd, NULL, 0);
2259 	platform_set_drvdata(pdev, mtd);
2277 	struct mtd_info *mtd = platform_get_drvdata(pdev);
2278 	struct nand_chip *nand_chip = mtd_to_nand(mtd);
2279 	struct omap_nand_info *info = mtd_to_omap(mtd);
2285 	WARN_ON(mtd_device_unregister(mtd));
2289 /* omap_nand_ids defined in linux/platform_data/mtd-nand-omap2.h */