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path: root/drivers/mtd/nand/mtk_nand.c
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Diffstat (limited to 'drivers/mtd/nand/mtk_nand.c')
-rw-r--r--drivers/mtd/nand/mtk_nand.c76
1 files changed, 45 insertions, 31 deletions
diff --git a/drivers/mtd/nand/mtk_nand.c b/drivers/mtd/nand/mtk_nand.c
index d86a7d131cc0..6977da3a26aa 100644
--- a/drivers/mtd/nand/mtk_nand.c
+++ b/drivers/mtd/nand/mtk_nand.c
@@ -97,7 +97,6 @@
#define MTK_TIMEOUT (500000)
#define MTK_RESET_TIMEOUT (1000000)
-#define MTK_MAX_SECTOR (16)
#define MTK_NAND_MAX_NSELS (2)
#define MTK_NFC_MIN_SPARE (16)
#define ACCTIMING(tpoecs, tprecs, tc2r, tw2r, twh, twst, trlt) \
@@ -109,6 +108,8 @@ struct mtk_nfc_caps {
u8 num_spare_size;
u8 pageformat_spare_shift;
u8 nfi_clk_div;
+ u8 max_sector;
+ u32 max_sector_size;
};
struct mtk_nfc_bad_mark_ctl {
@@ -173,6 +174,10 @@ static const u8 spare_size_mt2712[] = {
74
};
+static const u8 spare_size_mt7622[] = {
+ 16, 26, 27, 28
+};
+
static inline struct mtk_nfc_nand_chip *to_mtk_nand(struct nand_chip *nand)
{
return container_of(nand, struct mtk_nfc_nand_chip, nand);
@@ -450,7 +455,7 @@ static inline u8 mtk_nfc_read_byte(struct mtd_info *mtd)
* set to max sector to allow the HW to continue reading over
* unaligned accesses
*/
- reg = (MTK_MAX_SECTOR << CON_SEC_SHIFT) | CON_BRD;
+ reg = (nfc->caps->max_sector << CON_SEC_SHIFT) | CON_BRD;
nfi_writel(nfc, reg, NFI_CON);
/* trigger to fetch data */
@@ -481,7 +486,7 @@ static void mtk_nfc_write_byte(struct mtd_info *mtd, u8 byte)
reg = nfi_readw(nfc, NFI_CNFG) | CNFG_BYTE_RW;
nfi_writew(nfc, reg, NFI_CNFG);
- reg = MTK_MAX_SECTOR << CON_SEC_SHIFT | CON_BWR;
+ reg = nfc->caps->max_sector << CON_SEC_SHIFT | CON_BWR;
nfi_writel(nfc, reg, NFI_CON);
nfi_writew(nfc, STAR_EN, NFI_STRDATA);
@@ -761,6 +766,8 @@ static int mtk_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
u32 reg;
int ret;
+ nand_prog_page_begin_op(chip, page, 0, NULL, 0);
+
if (!raw) {
/* OOB => FDM: from register, ECC: from HW */
reg = nfi_readw(nfc, NFI_CNFG) | CNFG_AUTO_FMT_EN;
@@ -794,7 +801,10 @@ static int mtk_nfc_write_page(struct mtd_info *mtd, struct nand_chip *chip,
if (!raw)
mtk_ecc_disable(nfc->ecc);
- return ret;
+ if (ret)
+ return ret;
+
+ return nand_prog_page_end_op(chip);
}
static int mtk_nfc_write_page_hwecc(struct mtd_info *mtd,
@@ -832,18 +842,7 @@ static int mtk_nfc_write_subpage_hwecc(struct mtd_info *mtd,
static int mtk_nfc_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
int page)
{
- int ret;
-
- chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
-
- ret = mtk_nfc_write_page_raw(mtd, chip, NULL, 1, page);
- if (ret < 0)
- return -EIO;
-
- chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
- ret = chip->waitfunc(mtd, chip);
-
- return ret & NAND_STATUS_FAIL ? -EIO : 0;
+ return mtk_nfc_write_page_raw(mtd, chip, NULL, 1, page);
}
static int mtk_nfc_update_ecc_stats(struct mtd_info *mtd, u8 *buf, u32 sectors)
@@ -892,8 +891,7 @@ static int mtk_nfc_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
len = sectors * chip->ecc.size + (raw ? sectors * spare : 0);
buf = bufpoi + start * chip->ecc.size;
- if (column != 0)
- chip->cmdfunc(mtd, NAND_CMD_RNDOUT, column, -1);
+ nand_read_page_op(chip, page, column, NULL, 0);
addr = dma_map_single(nfc->dev, buf, len, DMA_FROM_DEVICE);
rc = dma_mapping_error(nfc->dev, addr);
@@ -1016,8 +1014,6 @@ static int mtk_nfc_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
static int mtk_nfc_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip,
int page)
{
- chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
-
return mtk_nfc_read_page_raw(mtd, chip, NULL, 1, page);
}
@@ -1126,9 +1122,11 @@ static void mtk_nfc_set_fdm(struct mtk_nfc_fdm *fdm, struct mtd_info *mtd)
{
struct nand_chip *nand = mtd_to_nand(mtd);
struct mtk_nfc_nand_chip *chip = to_mtk_nand(nand);
+ struct mtk_nfc *nfc = nand_get_controller_data(nand);
u32 ecc_bytes;
- ecc_bytes = DIV_ROUND_UP(nand->ecc.strength * ECC_PARITY_BITS, 8);
+ ecc_bytes = DIV_ROUND_UP(nand->ecc.strength *
+ mtk_ecc_get_parity_bits(nfc->ecc), 8);
fdm->reg_size = chip->spare_per_sector - ecc_bytes;
if (fdm->reg_size > NFI_FDM_MAX_SIZE)
@@ -1208,7 +1206,8 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
* this controller only supports 512 and 1024 sizes
*/
if (nand->ecc.size < 1024) {
- if (mtd->writesize > 512) {
+ if (mtd->writesize > 512 &&
+ nfc->caps->max_sector_size > 512) {
nand->ecc.size = 1024;
nand->ecc.strength <<= 1;
} else {
@@ -1223,7 +1222,8 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
return ret;
/* calculate oob bytes except ecc parity data */
- free = ((nand->ecc.strength * ECC_PARITY_BITS) + 7) >> 3;
+ free = (nand->ecc.strength * mtk_ecc_get_parity_bits(nfc->ecc)
+ + 7) >> 3;
free = spare - free;
/*
@@ -1233,10 +1233,12 @@ static int mtk_nfc_ecc_init(struct device *dev, struct mtd_info *mtd)
*/
if (free > NFI_FDM_MAX_SIZE) {
spare -= NFI_FDM_MAX_SIZE;
- nand->ecc.strength = (spare << 3) / ECC_PARITY_BITS;
+ nand->ecc.strength = (spare << 3) /
+ mtk_ecc_get_parity_bits(nfc->ecc);
} else if (free < 0) {
spare -= NFI_FDM_MIN_SIZE;
- nand->ecc.strength = (spare << 3) / ECC_PARITY_BITS;
+ nand->ecc.strength = (spare << 3) /
+ mtk_ecc_get_parity_bits(nfc->ecc);
}
}
@@ -1389,6 +1391,8 @@ static const struct mtk_nfc_caps mtk_nfc_caps_mt2701 = {
.num_spare_size = 16,
.pageformat_spare_shift = 4,
.nfi_clk_div = 1,
+ .max_sector = 16,
+ .max_sector_size = 1024,
};
static const struct mtk_nfc_caps mtk_nfc_caps_mt2712 = {
@@ -1396,6 +1400,17 @@ static const struct mtk_nfc_caps mtk_nfc_caps_mt2712 = {
.num_spare_size = 19,
.pageformat_spare_shift = 16,
.nfi_clk_div = 2,
+ .max_sector = 16,
+ .max_sector_size = 1024,
+};
+
+static const struct mtk_nfc_caps mtk_nfc_caps_mt7622 = {
+ .spare_size = spare_size_mt7622,
+ .num_spare_size = 4,
+ .pageformat_spare_shift = 4,
+ .nfi_clk_div = 1,
+ .max_sector = 8,
+ .max_sector_size = 512,
};
static const struct of_device_id mtk_nfc_id_table[] = {
@@ -1405,6 +1420,9 @@ static const struct of_device_id mtk_nfc_id_table[] = {
}, {
.compatible = "mediatek,mt2712-nfc",
.data = &mtk_nfc_caps_mt2712,
+ }, {
+ .compatible = "mediatek,mt7622-nfc",
+ .data = &mtk_nfc_caps_mt7622,
},
{}
};
@@ -1540,7 +1558,6 @@ static int mtk_nfc_resume(struct device *dev)
struct mtk_nfc *nfc = dev_get_drvdata(dev);
struct mtk_nfc_nand_chip *chip;
struct nand_chip *nand;
- struct mtd_info *mtd;
int ret;
u32 i;
@@ -1553,11 +1570,8 @@ static int mtk_nfc_resume(struct device *dev)
/* reset NAND chip if VCC was powered off */
list_for_each_entry(chip, &nfc->chips, node) {
nand = &chip->nand;
- mtd = nand_to_mtd(nand);
- for (i = 0; i < chip->nsels; i++) {
- nand->select_chip(mtd, i);
- nand->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
- }
+ for (i = 0; i < chip->nsels; i++)
+ nand_reset(nand, i);
}
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-03 19:08:39 +0000