diff options
Diffstat (limited to 'drivers/mtd/nand/raw/omap2.c')
| -rw-r--r-- | drivers/mtd/nand/raw/omap2.c | 49 |
1 files changed, 23 insertions, 26 deletions
diff --git a/drivers/mtd/nand/raw/omap2.c b/drivers/mtd/nand/raw/omap2.c index 512f60780a50..fbb9955f2467 100644 --- a/drivers/mtd/nand/raw/omap2.c +++ b/drivers/mtd/nand/raw/omap2.c @@ -23,7 +23,6 @@ #include <linux/of.h> #include <linux/of_device.h> -#include <linux/mtd/nand_bch.h> #include <linux/platform_data/elm.h> #include <linux/omap-gpmc.h> @@ -185,6 +184,7 @@ static inline struct omap_nand_info *mtd_to_omap(struct mtd_info *mtd) * @dma_mode: dma mode enable (1) or disable (0) * @u32_count: number of bytes to be transferred * @is_write: prefetch read(0) or write post(1) mode + * @info: NAND device structure containing platform data */ static int omap_prefetch_enable(int cs, int fifo_th, int dma_mode, unsigned int u32_count, int is_write, struct omap_nand_info *info) @@ -214,7 +214,7 @@ static int omap_prefetch_enable(int cs, int fifo_th, int dma_mode, return 0; } -/** +/* * omap_prefetch_reset - disables and stops the prefetch engine */ static int omap_prefetch_reset(int cs, struct omap_nand_info *info) @@ -939,7 +939,7 @@ static int omap_calculate_ecc(struct nand_chip *chip, const u_char *dat, /** * omap_enable_hwecc - This function enables the hardware ecc functionality - * @mtd: MTD device structure + * @chip: NAND chip object * @mode: Read/Write mode */ static void omap_enable_hwecc(struct nand_chip *chip, int mode) @@ -1009,7 +1009,7 @@ static int omap_wait(struct nand_chip *this) /** * omap_dev_ready - checks the NAND Ready GPIO line - * @mtd: MTD device structure + * @chip: NAND chip object * * Returns true if ready and false if busy. */ @@ -1022,7 +1022,7 @@ static int omap_dev_ready(struct nand_chip *chip) /** * omap_enable_hwecc_bch - Program GPMC to perform BCH ECC calculation - * @mtd: MTD device structure + * @chip: NAND chip object * @mode: Read/Write mode * * When using BCH with SW correction (i.e. no ELM), sector size is set @@ -1131,7 +1131,7 @@ static u8 bch8_polynomial[] = {0xef, 0x51, 0x2e, 0x09, 0xed, 0x93, 0x9a, 0xc2, * _omap_calculate_ecc_bch - Generate ECC bytes for one sector * @mtd: MTD device structure * @dat: The pointer to data on which ecc is computed - * @ecc_code: The ecc_code buffer + * @ecc_calc: The ecc_code buffer * @i: The sector number (for a multi sector page) * * Support calculating of BCH4/8/16 ECC vectors for one sector @@ -1259,7 +1259,7 @@ static int _omap_calculate_ecc_bch(struct mtd_info *mtd, * omap_calculate_ecc_bch_sw - ECC generator for sector for SW based correction * @chip: NAND chip object * @dat: The pointer to data on which ecc is computed - * @ecc_code: The ecc_code buffer + * @ecc_calc: Buffer storing the calculated ECC bytes * * Support calculating of BCH4/8/16 ECC vectors for one sector. This is used * when SW based correction is required as ECC is required for one sector @@ -1275,7 +1275,7 @@ static int omap_calculate_ecc_bch_sw(struct nand_chip *chip, * omap_calculate_ecc_bch_multi - Generate ECC for multiple sectors * @mtd: MTD device structure * @dat: The pointer to data on which ecc is computed - * @ecc_code: The ecc_code buffer + * @ecc_calc: Buffer storing the calculated ECC bytes * * Support calculating of BCH4/8/16 ecc vectors for the entire page in one go. */ @@ -1674,7 +1674,8 @@ static int omap_read_page_bch(struct nand_chip *chip, uint8_t *buf, /** * is_elm_present - checks for presence of ELM module by scanning DT nodes - * @omap_nand_info: NAND device structure containing platform data + * @info: NAND device structure containing platform data + * @elm_node: ELM's DT node */ static bool is_elm_present(struct omap_nand_info *info, struct device_node *elm_node) @@ -2041,16 +2042,16 @@ static int omap_nand_attach_chip(struct nand_chip *chip) chip->ecc.bytes = 7; chip->ecc.strength = 4; chip->ecc.hwctl = omap_enable_hwecc_bch; - chip->ecc.correct = nand_bch_correct_data; + chip->ecc.correct = rawnand_sw_bch_correct; chip->ecc.calculate = omap_calculate_ecc_bch_sw; mtd_set_ooblayout(mtd, &omap_sw_ooblayout_ops); /* Reserve one byte for the OMAP marker */ oobbytes_per_step = chip->ecc.bytes + 1; /* Software BCH library is used for locating errors */ - chip->ecc.priv = nand_bch_init(mtd); - if (!chip->ecc.priv) { + err = rawnand_sw_bch_init(chip); + if (err) { dev_err(dev, "Unable to use BCH library\n"); - return -EINVAL; + return err; } break; @@ -2083,16 +2084,16 @@ static int omap_nand_attach_chip(struct nand_chip *chip) chip->ecc.bytes = 13; chip->ecc.strength = 8; chip->ecc.hwctl = omap_enable_hwecc_bch; - chip->ecc.correct = nand_bch_correct_data; + chip->ecc.correct = rawnand_sw_bch_correct; chip->ecc.calculate = omap_calculate_ecc_bch_sw; mtd_set_ooblayout(mtd, &omap_sw_ooblayout_ops); /* Reserve one byte for the OMAP marker */ oobbytes_per_step = chip->ecc.bytes + 1; /* Software BCH library is used for locating errors */ - chip->ecc.priv = nand_bch_init(mtd); - if (!chip->ecc.priv) { + err = rawnand_sw_bch_init(chip); + if (err) { dev_err(dev, "unable to use BCH library\n"); - return -EINVAL; + return err; } break; @@ -2195,7 +2196,6 @@ static int omap_nand_probe(struct platform_device *pdev) nand_chip = &info->nand; mtd = nand_to_mtd(nand_chip); mtd->dev.parent = &pdev->dev; - nand_chip->ecc.priv = NULL; nand_set_flash_node(nand_chip, dev->of_node); if (!mtd->name) { @@ -2271,10 +2271,9 @@ cleanup_nand: return_error: if (!IS_ERR_OR_NULL(info->dma)) dma_release_channel(info->dma); - if (nand_chip->ecc.priv) { - nand_bch_free(nand_chip->ecc.priv); - nand_chip->ecc.priv = NULL; - } + + rawnand_sw_bch_cleanup(nand_chip); + return err; } @@ -2285,10 +2284,8 @@ static int omap_nand_remove(struct platform_device *pdev) struct omap_nand_info *info = mtd_to_omap(mtd); int ret; - if (nand_chip->ecc.priv) { - nand_bch_free(nand_chip->ecc.priv); - nand_chip->ecc.priv = NULL; - } + rawnand_sw_bch_cleanup(nand_chip); + if (info->dma) dma_release_channel(info->dma); ret = mtd_device_unregister(mtd); |