182 	struct mtd_oob_region ecc;  member
204 	int bytes_per_step = DIV_ROUND_UP(BITS_PER_STEP_RS * chip->ecc.strength,  in tegra_nand_ooblayout_rs_ecc()
211 	oobregion->length = round_up(bytes_per_step * chip->ecc.steps, 4);  in tegra_nand_ooblayout_rs_ecc()
223 	.ecc = tegra_nand_ooblayout_rs_ecc,
231 	int bytes_per_step = DIV_ROUND_UP(BITS_PER_STEP_BCH * chip->ecc.strength,  in tegra_nand_ooblayout_bch_ecc()
238 	oobregion->length = round_up(bytes_per_step * chip->ecc.steps, 4);  in tegra_nand_ooblayout_bch_ecc()
244 	.ecc = tegra_nand_ooblayout_bch_ecc,
480 	if (chip->ecc.algo == NAND_ECC_BCH && enable)  in tegra_nand_hw_ecc()
705 		if (fail_sec_flag ^ GENMASK(chip->ecc.steps - 1, 0)) {  in tegra_nand_read_page_hwecc()
721 		for_each_set_bit(bit, &fail_sec_flag, chip->ecc.steps) {  in tegra_nand_read_page_hwecc()
722 			u8 *data = buf + (chip->ecc.size * bit);  in tegra_nand_read_page_hwecc()
723 			u8 *oob = chip->oob_poi + nand->ecc.offset +  in tegra_nand_read_page_hwecc()
724 				  (chip->ecc.bytes * bit);  in tegra_nand_read_page_hwecc()
726 			ret = nand_check_erased_ecc_chunk(data, chip->ecc.size,  in tegra_nand_read_page_hwecc()
727 							  oob, chip->ecc.bytes,  in tegra_nand_read_page_hwecc()
729 							  chip->ecc.strength);  in tegra_nand_read_page_hwecc()
841 	bool maximize = chip->ecc.options & NAND_ECC_MAXIMIZE;  in tegra_nand_get_strength()
862 		bytes_per_page = round_up(bytes_per_step * chip->ecc.steps, 4);  in tegra_nand_get_strength()
877 	switch (chip->ecc.algo) {  in tegra_nand_select_strength()
917 	chip->ecc.mode = NAND_ECC_HW;  in tegra_nand_attach_chip()
918 	chip->ecc.size = 512;  in tegra_nand_attach_chip()
919 	chip->ecc.steps = mtd->writesize / chip->ecc.size;  in tegra_nand_attach_chip()
926 	chip->ecc.read_page = tegra_nand_read_page_hwecc;  in tegra_nand_attach_chip()
927 	chip->ecc.write_page = tegra_nand_write_page_hwecc;  in tegra_nand_attach_chip()
928 	chip->ecc.read_page_raw = tegra_nand_read_page_raw;  in tegra_nand_attach_chip()
929 	chip->ecc.write_page_raw = tegra_nand_write_page_raw;  in tegra_nand_attach_chip()
930 	chip->ecc.read_oob = tegra_nand_read_oob;  in tegra_nand_attach_chip()
931 	chip->ecc.write_oob = tegra_nand_write_oob;  in tegra_nand_attach_chip()
936 	if (chip->ecc.algo == NAND_ECC_UNKNOWN) {  in tegra_nand_attach_chip()
938 			chip->ecc.algo = NAND_ECC_RS;  in tegra_nand_attach_chip()
940 			chip->ecc.algo = NAND_ECC_BCH;  in tegra_nand_attach_chip()
943 	if (chip->ecc.algo == NAND_ECC_BCH && mtd->writesize < 2048) {  in tegra_nand_attach_chip()
948 	if (!chip->ecc.strength) {  in tegra_nand_attach_chip()
957 		chip->ecc.strength = ret;  in tegra_nand_attach_chip()
963 	switch (chip->ecc.algo) {  in tegra_nand_attach_chip()
965 		bits_per_step = BITS_PER_STEP_RS * chip->ecc.strength;  in tegra_nand_attach_chip()
969 		switch (chip->ecc.strength) {  in tegra_nand_attach_chip()
981 				chip->ecc.strength);  in tegra_nand_attach_chip()
986 		bits_per_step = BITS_PER_STEP_BCH * chip->ecc.strength;  in tegra_nand_attach_chip()
989 		switch (chip->ecc.strength) {  in tegra_nand_attach_chip()
1004 				chip->ecc.strength);  in tegra_nand_attach_chip()
1014 		 chip->ecc.algo == NAND_ECC_BCH ? "BCH" : "RS",  in tegra_nand_attach_chip()
1015 		 chip->ecc.strength);  in tegra_nand_attach_chip()
1017 	chip->ecc.bytes = DIV_ROUND_UP(bits_per_step, BITS_PER_BYTE);  in tegra_nand_attach_chip()
1122 	mtd_ooblayout_ecc(mtd, 0, &nand->ecc);  in tegra_nand_chips_init()