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author | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-08-27 10:52:05 +0200 |
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committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2020-09-30 16:43:52 +0200 |
commit | 1e3b37aab958861a9d0c01ff6dbec96a82743701 (patch) | |
tree | a2e1a4f195d65fa6264c3e80dc5ce97f8c61ca76 /drivers/mtd | |
parent | c441bcd31266dc403beb6f2c2f095696a1be5325 (diff) | |
download | linux-1e3b37aab958861a9d0c01ff6dbec96a82743701.tar.gz linux-1e3b37aab958861a9d0c01ff6dbec96a82743701.tar.bz2 linux-1e3b37aab958861a9d0c01ff6dbec96a82743701.zip |
mtd: rawnand: Use the ECC framework OOB layouts
No need to have our own in the raw NAND core.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200827085208.16276-18-miquel.raynal@bootlin.com
Diffstat (limited to 'drivers/mtd')
-rw-r--r-- | drivers/mtd/nand/raw/arasan-nand-controller.c | 2 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/atmel/nand-controller.c | 2 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/davinci_nand.c | 3 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c | 6 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/nand_base.c | 174 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/nand_bch.c | 1 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/nand_toshiba.c | 2 | ||||
-rw-r--r-- | drivers/mtd/nand/raw/vf610_nfc.c | 2 |
8 files changed, 19 insertions, 173 deletions
diff --git a/drivers/mtd/nand/raw/arasan-nand-controller.c b/drivers/mtd/nand/raw/arasan-nand-controller.c index 006bc3d3ce20..fbb4ea751be8 100644 --- a/drivers/mtd/nand/raw/arasan-nand-controller.c +++ b/drivers/mtd/nand/raw/arasan-nand-controller.c @@ -980,7 +980,7 @@ static int anfc_init_hw_ecc_controller(struct arasan_nfc *nfc, return -EINVAL; } - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops); + mtd_set_ooblayout(mtd, nand_get_large_page_ooblayout()); ecc->steps = mtd->writesize / ecc->size; ecc->algo = NAND_ECC_ALGO_BCH; diff --git a/drivers/mtd/nand/raw/atmel/nand-controller.c b/drivers/mtd/nand/raw/atmel/nand-controller.c index 3d162fdc9ce2..7fcc5e67163e 100644 --- a/drivers/mtd/nand/raw/atmel/nand-controller.c +++ b/drivers/mtd/nand/raw/atmel/nand-controller.c @@ -1108,7 +1108,7 @@ static int atmel_nand_pmecc_init(struct nand_chip *chip) chip->options |= NAND_NO_SUBPAGE_WRITE; - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops); + mtd_set_ooblayout(mtd, nand_get_large_page_ooblayout()); return 0; } diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c index 58966a9706b1..427f320fb79b 100644 --- a/drivers/mtd/nand/raw/davinci_nand.c +++ b/drivers/mtd/nand/raw/davinci_nand.c @@ -645,7 +645,8 @@ static int davinci_nand_attach_chip(struct nand_chip *chip) mtd_set_ooblayout(mtd, &hwecc4_small_ooblayout_ops); } else if (chunks == 4 || chunks == 8) { - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops); + mtd_set_ooblayout(mtd, + nand_get_large_page_ooblayout()); info->chip.ecc.read_page = nand_davinci_read_page_hwecc_oob_first; } else { return -EIO; diff --git a/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c b/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c index 70309f18124c..0e9d426fe4f2 100644 --- a/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c +++ b/drivers/mtd/nand/raw/ingenic/ingenic_nand_drv.c @@ -243,8 +243,10 @@ static int ingenic_nand_attach_chip(struct nand_chip *chip) /* For legacy reasons we use a different layout on the qi,lb60 board. */ if (of_machine_is_compatible("qi,lb60")) mtd_set_ooblayout(mtd, &qi_lb60_ooblayout_ops); - else + else if (nfc->soc_info->oob_layout) mtd_set_ooblayout(mtd, nfc->soc_info->oob_layout); + else + mtd_set_ooblayout(mtd, nand_get_large_page_ooblayout()); return 0; } @@ -532,7 +534,6 @@ static const struct jz_soc_info jz4740_soc_info = { .data_offset = 0x00000000, .cmd_offset = 0x00008000, .addr_offset = 0x00010000, - .oob_layout = &nand_ooblayout_lp_ops, }; static const struct jz_soc_info jz4725b_soc_info = { @@ -546,7 +547,6 @@ static const struct jz_soc_info jz4780_soc_info = { .data_offset = 0x00000000, .cmd_offset = 0x00400000, .addr_offset = 0x00800000, - .oob_layout = &nand_ooblayout_lp_ops, }; static const struct of_device_id ingenic_nand_dt_match[] = { diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c index 2c102aeecdc1..4b41de520d0d 100644 --- a/drivers/mtd/nand/raw/nand_base.c +++ b/drivers/mtd/nand/raw/nand_base.c @@ -46,166 +46,6 @@ #include "internals.h" -/* Define default oob placement schemes for large and small page devices */ -static int nand_ooblayout_ecc_sp(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct nand_ecc_ctrl *ecc = &chip->ecc; - - if (section > 1) - return -ERANGE; - - if (!section) { - oobregion->offset = 0; - if (mtd->oobsize == 16) - oobregion->length = 4; - else - oobregion->length = 3; - } else { - if (mtd->oobsize == 8) - return -ERANGE; - - oobregion->offset = 6; - oobregion->length = ecc->total - 4; - } - - return 0; -} - -static int nand_ooblayout_free_sp(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - if (section > 1) - return -ERANGE; - - if (mtd->oobsize == 16) { - if (section) - return -ERANGE; - - oobregion->length = 8; - oobregion->offset = 8; - } else { - oobregion->length = 2; - if (!section) - oobregion->offset = 3; - else - oobregion->offset = 6; - } - - return 0; -} - -const struct mtd_ooblayout_ops nand_ooblayout_sp_ops = { - .ecc = nand_ooblayout_ecc_sp, - .free = nand_ooblayout_free_sp, -}; -EXPORT_SYMBOL_GPL(nand_ooblayout_sp_ops); - -static int nand_ooblayout_ecc_lp(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct nand_ecc_ctrl *ecc = &chip->ecc; - - if (section || !ecc->total) - return -ERANGE; - - oobregion->length = ecc->total; - oobregion->offset = mtd->oobsize - oobregion->length; - - return 0; -} - -static int nand_ooblayout_free_lp(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct nand_ecc_ctrl *ecc = &chip->ecc; - - if (section) - return -ERANGE; - - oobregion->length = mtd->oobsize - ecc->total - 2; - oobregion->offset = 2; - - return 0; -} - -const struct mtd_ooblayout_ops nand_ooblayout_lp_ops = { - .ecc = nand_ooblayout_ecc_lp, - .free = nand_ooblayout_free_lp, -}; -EXPORT_SYMBOL_GPL(nand_ooblayout_lp_ops); - -/* - * Support the old "large page" layout used for 1-bit Hamming ECC where ECC - * are placed at a fixed offset. - */ -static int nand_ooblayout_ecc_lp_hamming(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct nand_ecc_ctrl *ecc = &chip->ecc; - - if (section) - return -ERANGE; - - switch (mtd->oobsize) { - case 64: - oobregion->offset = 40; - break; - case 128: - oobregion->offset = 80; - break; - default: - return -EINVAL; - } - - oobregion->length = ecc->total; - if (oobregion->offset + oobregion->length > mtd->oobsize) - return -ERANGE; - - return 0; -} - -static int nand_ooblayout_free_lp_hamming(struct mtd_info *mtd, int section, - struct mtd_oob_region *oobregion) -{ - struct nand_chip *chip = mtd_to_nand(mtd); - struct nand_ecc_ctrl *ecc = &chip->ecc; - int ecc_offset = 0; - - if (section < 0 || section > 1) - return -ERANGE; - - switch (mtd->oobsize) { - case 64: - ecc_offset = 40; - break; - case 128: - ecc_offset = 80; - break; - default: - return -EINVAL; - } - - if (section == 0) { - oobregion->offset = 2; - oobregion->length = ecc_offset - 2; - } else { - oobregion->offset = ecc_offset + ecc->total; - oobregion->length = mtd->oobsize - oobregion->offset; - } - - return 0; -} - -static const struct mtd_ooblayout_ops nand_ooblayout_lp_hamming_ops = { - .ecc = nand_ooblayout_ecc_lp_hamming, - .free = nand_ooblayout_free_lp_hamming, -}; - static int nand_pairing_dist3_get_info(struct mtd_info *mtd, int page, struct mtd_pairing_info *info) { @@ -5372,7 +5212,7 @@ static int nand_set_ecc_soft_ops(struct nand_chip *chip) return -EINVAL; } - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops); + mtd_set_ooblayout(mtd, nand_get_large_page_ooblayout()); } @@ -5381,7 +5221,7 @@ static int nand_set_ecc_soft_ops(struct nand_chip *chip) * used, otherwise we don't know how many bytes can really be * used. */ - if (mtd->ooblayout == &nand_ooblayout_lp_ops && + if (mtd->ooblayout == nand_get_large_page_ooblayout() && ecc->options & NAND_ECC_MAXIMIZE) { int steps, bytes; @@ -5783,11 +5623,12 @@ static int nand_scan_tail(struct nand_chip *chip) switch (mtd->oobsize) { case 8: case 16: - mtd_set_ooblayout(mtd, &nand_ooblayout_sp_ops); + mtd_set_ooblayout(mtd, nand_get_small_page_ooblayout()); break; case 64: case 128: - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_hamming_ops); + mtd_set_ooblayout(mtd, + nand_get_large_page_hamming_ooblayout()); break; default: /* @@ -5799,7 +5640,7 @@ static int nand_scan_tail(struct nand_chip *chip) */ if (ecc->engine_type == NAND_ECC_ENGINE_TYPE_NONE) { mtd_set_ooblayout(mtd, - &nand_ooblayout_lp_ops); + nand_get_large_page_ooblayout()); break; } @@ -5954,7 +5795,10 @@ static int nand_scan_tail(struct nand_chip *chip) ret = -EINVAL; goto err_nand_manuf_cleanup; } + ecc->total = ecc->steps * ecc->bytes; + chip->base.ecc.ctx.total = ecc->total; + if (ecc->total > mtd->oobsize) { WARN(1, "Total number of ECC bytes exceeded oobsize\n"); ret = -EINVAL; diff --git a/drivers/mtd/nand/raw/nand_bch.c b/drivers/mtd/nand/raw/nand_bch.c index d5af8c5fd02f..9d19ac14c196 100644 --- a/drivers/mtd/nand/raw/nand_bch.c +++ b/drivers/mtd/nand/raw/nand_bch.c @@ -165,6 +165,7 @@ struct nand_bch_control *nand_bch_init(struct mtd_info *mtd) */ nand->ecc.steps = eccsteps; nand->ecc.total = eccsteps * eccbytes; + nand->base.ecc.ctx.total = nand->ecc.total; if (mtd_ooblayout_count_eccbytes(mtd) != (eccsteps*eccbytes)) { pr_warn("invalid ecc layout\n"); goto fail; diff --git a/drivers/mtd/nand/raw/nand_toshiba.c b/drivers/mtd/nand/raw/nand_toshiba.c index fb6662337b90..cf4f37959421 100644 --- a/drivers/mtd/nand/raw/nand_toshiba.c +++ b/drivers/mtd/nand/raw/nand_toshiba.c @@ -140,7 +140,7 @@ static void toshiba_nand_benand_init(struct nand_chip *chip) chip->options |= NAND_SUBPAGE_READ; - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops); + mtd_set_ooblayout(mtd, nand_get_large_page_ooblayout()); } static void toshiba_nand_decode_id(struct nand_chip *chip) diff --git a/drivers/mtd/nand/raw/vf610_nfc.c b/drivers/mtd/nand/raw/vf610_nfc.c index 8ee2c1f539c4..50dc0c93140c 100644 --- a/drivers/mtd/nand/raw/vf610_nfc.c +++ b/drivers/mtd/nand/raw/vf610_nfc.c @@ -779,7 +779,7 @@ static int vf610_nfc_attach_chip(struct nand_chip *chip) mtd->oobsize = 64; /* Use default large page ECC layout defined in NAND core */ - mtd_set_ooblayout(mtd, &nand_ooblayout_lp_ops); + mtd_set_ooblayout(mtd, nand_get_large_page_ooblayout()); if (chip->ecc.strength == 32) { nfc->ecc_mode = ECC_60_BYTE; chip->ecc.bytes = 60; |