raw/brcmnand/brcmnand.c

23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/rawnand.h>
25 #include <linux/mtd/partitions.h>
902 static void brcmnand_set_cmd_addr(struct mtd_info *mtd, u64 addr)
904 	struct nand_chip *chip =  mtd_to_nand(mtd);
1247  * Set mtd->ooblayout to the appropriate mtd_ooblayout_ops given
1251 static int brcmnand_hamming_ooblayout_ecc(struct mtd_info *mtd, int section,
1254 	struct nand_chip *chip = mtd_to_nand(mtd);
1269 static int brcmnand_hamming_ooblayout_free(struct mtd_info *mtd, int section,
1272 	struct nand_chip *chip = mtd_to_nand(mtd);
1309 static int brcmnand_bch_ooblayout_ecc(struct mtd_info *mtd, int section,
1312 	struct nand_chip *chip = mtd_to_nand(mtd);
1327 static int brcmnand_bch_ooblayout_free_lp(struct mtd_info *mtd, int section,
1330 	struct nand_chip *chip = mtd_to_nand(mtd);
1353 static int brcmnand_bch_ooblayout_free_sp(struct mtd_info *mtd, int section,
1356 	struct nand_chip *chip = mtd_to_nand(mtd);
1389 	struct mtd_info *mtd = nand_to_mtd(&host->chip);
1400 		mtd_set_ooblayout(mtd, &brcmnand_hamming_ooblayout_ops);
1412 		mtd_set_ooblayout(mtd, &brcmnand_bch_sp_ooblayout_ops);
1414 		mtd_set_ooblayout(mtd, &brcmnand_bch_lp_ooblayout_ops);
1426 static void brcmnand_wp(struct mtd_info *mtd, int wp)
1428 	struct nand_chip *chip = mtd_to_nand(mtd);
1714 	struct mtd_info *mtd = nand_to_mtd(chip);
1718 	if (mtd->oops_panic_write || ctrl->irq < 0) {
1763 	struct mtd_info *mtd = nand_to_mtd(chip);
1765 	brcmnand_set_cmd_addr(mtd, 0);
2039 static int brcmnand_read_by_pio(struct mtd_info *mtd, struct nand_chip *chip,
2050 		brcmnand_set_cmd_addr(mtd, addr);
2066 					mtd->oobsize / trans,
2101 static int brcmstb_nand_verify_erased_page(struct mtd_info *mtd,
2123 		mtd_ooblayout_ecc(mtd, i, &ecc);
2139 static int brcmnand_read(struct mtd_info *mtd, struct nand_chip *chip,
2172 			memset(oob, 0x99, mtd->oobsize);
2174 		err = brcmnand_read_by_pio(mtd, chip, addr, trans, buf,
2200 			err = brcmstb_nand_verify_erased_page(mtd, chip, buf,
2209 		mtd->ecc_stats.failed++;
2219 			err = brcmnand_read_by_pio(mtd, chip, addr, trans, buf,
2224 		mtd->ecc_stats.corrected += corrected;
2226 		return max(mtd->bitflip_threshold, corrected);
2235 	struct mtd_info *mtd = nand_to_mtd(chip);
2242 	return brcmnand_read(mtd, chip, host->last_addr,
2243 			mtd->writesize >> FC_SHIFT, (u32 *)buf, oob);
2250 	struct mtd_info *mtd = nand_to_mtd(chip);
2258 	ret = brcmnand_read(mtd, chip, host->last_addr,
2259 			mtd->writesize >> FC_SHIFT, (u32 *)buf, oob);
2266 	struct mtd_info *mtd = nand_to_mtd(chip);
2268 	return brcmnand_read(mtd, chip, (u64)page << chip->page_shift,
2269 			mtd->writesize >> FC_SHIFT,
2275 	struct mtd_info *mtd = nand_to_mtd(chip);
2279 	brcmnand_read(mtd, chip, (u64)page << chip->page_shift,
2280 		mtd->writesize >> FC_SHIFT,
2286 static int brcmnand_write(struct mtd_info *mtd, struct nand_chip *chip,
2291 	unsigned int i, j, trans = mtd->writesize >> FC_SHIFT;
2301 	brcmnand_wp(mtd, 0);
2306 	if (mtd->oops_panic_write)
2311 		if (ctrl->dma_trans(host, addr, (u32 *)buf, oob, mtd->writesize,
2321 		brcmnand_set_cmd_addr(mtd, addr);
2337 					mtd->oobsize / trans,
2353 	brcmnand_wp(mtd, 1);
2360 	struct mtd_info *mtd = nand_to_mtd(chip);
2367 	return brcmnand_write(mtd, chip, host->last_addr, (const u32 *)buf, oob);
2373 	struct mtd_info *mtd = nand_to_mtd(chip);
2381 	ret = brcmnand_write(mtd, chip, host->last_addr, (const u32 *)buf, oob);
2396 	struct mtd_info *mtd = nand_to_mtd(chip);
2401 	ret = brcmnand_write(mtd, chip, (u64)page << chip->page_shift, NULL,
2493 	struct mtd_info *mtd = nand_to_mtd(chip);
2515 		brcmnand_wp(mtd, 1);
2521 		brcmnand_wp(mtd, 0);
2530 		brcmnand_wp(mtd, 1);
2673 	struct mtd_info *mtd = nand_to_mtd(&host->chip);
2710 			cfg->spare_area_size = mtd->oobsize /
2711 						(mtd->writesize >> FC_SHIFT);
2718 	 * Set mtd and memorg oobsize to be consistent with controller's
2721 	mtd->oobsize = cfg->spare_area_size * (mtd->writesize >> FC_SHIFT);
2722 	memorg->oobsize = mtd->oobsize;
2724 	cfg->device_size = mtd->size;
2725 	cfg->block_size = mtd->erasesize;
2726 	cfg->page_size = mtd->writesize;
2729 	cfg->blk_adr_bytes = get_blk_adr_bytes(mtd->size, mtd->writesize);
2793 	if (mtd->writesize > 512)
2827 	struct mtd_info *mtd = nand_to_mtd(chip);
2848 	mtd->bitflip_threshold = 1;
2871 	struct mtd_info *mtd;
2876 	mtd = nand_to_mtd(&host->chip);
2880 	mtd->name = devm_kasprintf(dev, GFP_KERNEL, "brcmnand.%d",
2882 	if (!mtd->name)
2885 	mtd->owner = THIS_MODULE;
2886 	mtd->dev.parent = dev;
2914 	ret = mtd_device_parse_register(mtd, part_probe_types, NULL, NULL, 0);