changes: * Move spinand_check_ecc_status(), spinand_noecc_ooblayout_ecc(), spinand_noecc_ooblayout_free() and spinand_noecc_ooblayout close to each other. * some code formatting * remove comments not present in linux driver
This make code more close to linux-6.10 kernel driver
Signed-off-by: Mikhail Kshevetskiy mikhail.kshevetskiy@iopsys.eu --- drivers/mtd/nand/spi/core.c | 115 +++++++++++++++++------------------- 1 file changed, 55 insertions(+), 60 deletions(-)
diff --git a/drivers/mtd/nand/spi/core.c b/drivers/mtd/nand/spi/core.c index cb787908332..00adc08976e 100644 --- a/drivers/mtd/nand/spi/core.c +++ b/drivers/mtd/nand/spi/core.c @@ -217,6 +217,59 @@ static int spinand_ecc_enable(struct spinand_device *spinand, enable ? CFG_ECC_ENABLE : 0); }
+static int spinand_check_ecc_status(struct spinand_device *spinand, u8 status) +{ + struct nand_device *nand = spinand_to_nand(spinand); + + if (spinand->eccinfo.get_status) + return spinand->eccinfo.get_status(spinand, status); + + switch (status & STATUS_ECC_MASK) { + case STATUS_ECC_NO_BITFLIPS: + return 0; + + case STATUS_ECC_HAS_BITFLIPS: + /* + * We have no way to know exactly how many bitflips have been + * fixed, so let's return the maximum possible value so that + * wear-leveling layers move the data immediately. + */ + return nand->eccreq.strength; + + case STATUS_ECC_UNCOR_ERROR: + return -EBADMSG; + + default: + break; + } + + return -EINVAL; +} + +static int spinand_noecc_ooblayout_ecc(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + return -ERANGE; +} + +static int spinand_noecc_ooblayout_free(struct mtd_info *mtd, int section, + struct mtd_oob_region *region) +{ + if (section) + return -ERANGE; + + /* Reserve 2 bytes for the BBM. */ + region->offset = 2; + region->length = 62; + + return 0; +} + +static const struct mtd_ooblayout_ops spinand_noecc_ooblayout = { + .ecc = spinand_noecc_ooblayout_ecc, + .rfree = spinand_noecc_ooblayout_free, +}; + static int spinand_write_enable_op(struct spinand_device *spinand) { struct spi_mem_op op = SPINAND_WR_EN_DIS_OP(true); @@ -408,9 +461,8 @@ out: static int spinand_read_id_op(struct spinand_device *spinand, u8 naddr, u8 ndummy, u8 *buf) { - struct spi_mem_op op = SPINAND_READID_OP(naddr, ndummy, - spinand->scratchbuf, - SPINAND_MAX_ID_LEN); + struct spi_mem_op op = SPINAND_READID_OP( + naddr, ndummy, spinand->scratchbuf, SPINAND_MAX_ID_LEN); int ret;
ret = spi_mem_exec_op(spinand->slave, &op); @@ -440,35 +492,6 @@ static int spinand_lock_block(struct spinand_device *spinand, u8 lock) return spinand_write_reg_op(spinand, REG_BLOCK_LOCK, lock); }
-static int spinand_check_ecc_status(struct spinand_device *spinand, u8 status) -{ - struct nand_device *nand = spinand_to_nand(spinand); - - if (spinand->eccinfo.get_status) - return spinand->eccinfo.get_status(spinand, status); - - switch (status & STATUS_ECC_MASK) { - case STATUS_ECC_NO_BITFLIPS: - return 0; - - case STATUS_ECC_HAS_BITFLIPS: - /* - * We have no way to know exactly how many bitflips have been - * fixed, so let's return the maximum possible value so that - * wear-leveling layers move the data immediately. - */ - return nand->eccreq.strength; - - case STATUS_ECC_UNCOR_ERROR: - return -EBADMSG; - - default: - break; - } - - return -EINVAL; -} - static int spinand_read_page(struct spinand_device *spinand, const struct nand_page_io_req *req, bool ecc_enabled) @@ -1051,30 +1074,6 @@ static int spinand_detect(struct spinand_device *spinand) return 0; }
-static int spinand_noecc_ooblayout_ecc(struct mtd_info *mtd, int section, - struct mtd_oob_region *region) -{ - return -ERANGE; -} - -static int spinand_noecc_ooblayout_free(struct mtd_info *mtd, int section, - struct mtd_oob_region *region) -{ - if (section) - return -ERANGE; - - /* Reserve 2 bytes for the BBM. */ - region->offset = 2; - region->length = 62; - - return 0; -} - -static const struct mtd_ooblayout_ops spinand_noecc_ooblayout = { - .ecc = spinand_noecc_ooblayout_ecc, - .rfree = spinand_noecc_ooblayout_free, -}; - static int spinand_init_flash(struct spinand_device *spinand) { struct udevice *dev = spinand->slave->dev; @@ -1164,10 +1163,6 @@ static int spinand_init(struct spinand_device *spinand) if (ret) goto err_manuf_cleanup;
- /* - * Right now, we don't support ECC, so let the whole oob - * area is available for user. - */ mtd->_read_oob = spinand_mtd_read; mtd->_write_oob = spinand_mtd_write; mtd->_block_isbad = spinand_mtd_block_isbad;