diff options
Diffstat (limited to 'drivers/mtd/onenand/onenand_base.c')
| -rw-r--r-- | drivers/mtd/onenand/onenand_base.c | 56 |
1 files changed, 39 insertions, 17 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c index 26caf2590dae..6b3a875647c9 100644 --- a/drivers/mtd/onenand/onenand_base.c +++ b/drivers/mtd/onenand/onenand_base.c @@ -377,8 +377,11 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le default: block = onenand_block(this, addr); - page = (int) (addr - onenand_addr(this, block)) >> this->page_shift; - + if (FLEXONENAND(this)) + page = (int) (addr - onenand_addr(this, block))>>\ + this->page_shift; + else + page = (int) (addr >> this->page_shift); if (ONENAND_IS_2PLANE(this)) { /* Make the even block number */ block &= ~1; @@ -3362,18 +3365,19 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from, static void onenand_check_features(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; - unsigned int density, process; + unsigned int density, process, numbufs; /* Lock scheme depends on density and process */ density = onenand_get_density(this->device_id); process = this->version_id >> ONENAND_VERSION_PROCESS_SHIFT; + numbufs = this->read_word(this->base + ONENAND_REG_NUM_BUFFERS) >> 8; /* Lock scheme */ switch (density) { case ONENAND_DEVICE_DENSITY_4Gb: if (ONENAND_IS_DDP(this)) this->options |= ONENAND_HAS_2PLANE; - else + else if (numbufs == 1) this->options |= ONENAND_HAS_4KB_PAGE; case ONENAND_DEVICE_DENSITY_2Gb: @@ -3730,17 +3734,16 @@ out: } /** - * onenand_probe - [OneNAND Interface] Probe the OneNAND device + * onenand_chip_probe - [OneNAND Interface] The generic chip probe * @param mtd MTD device structure * * OneNAND detection method: * Compare the values from command with ones from register */ -static int onenand_probe(struct mtd_info *mtd) +static int onenand_chip_probe(struct mtd_info *mtd) { struct onenand_chip *this = mtd->priv; - int bram_maf_id, bram_dev_id, maf_id, dev_id, ver_id; - int density; + int bram_maf_id, bram_dev_id, maf_id, dev_id; int syscfg; /* Save system configuration 1 */ @@ -3763,12 +3766,6 @@ static int onenand_probe(struct mtd_info *mtd) /* Restore system configuration 1 */ this->write_word(syscfg, this->base + ONENAND_REG_SYS_CFG1); - /* Workaround */ - if (syscfg & ONENAND_SYS_CFG1_SYNC_WRITE) { - bram_maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID); - bram_dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID); - } - /* Check manufacturer ID */ if (onenand_check_maf(bram_maf_id)) return -ENXIO; @@ -3776,13 +3773,35 @@ static int onenand_probe(struct mtd_info *mtd) /* Read manufacturer and device IDs from Register */ maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID); dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID); - ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID); - this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY); /* Check OneNAND device */ if (maf_id != bram_maf_id || dev_id != bram_dev_id) return -ENXIO; + return 0; +} + +/** + * onenand_probe - [OneNAND Interface] Probe the OneNAND device + * @param mtd MTD device structure + */ +static int onenand_probe(struct mtd_info *mtd) +{ + struct onenand_chip *this = mtd->priv; + int maf_id, dev_id, ver_id; + int density; + int ret; + + ret = this->chip_probe(mtd); + if (ret) + return ret; + + /* Read manufacturer and device IDs from Register */ + maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID); + dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID); + ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID); + this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY); + /* Flash device information */ onenand_print_device_info(dev_id, ver_id); this->device_id = dev_id; @@ -3909,6 +3928,9 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) if (!this->unlock_all) this->unlock_all = onenand_unlock_all; + if (!this->chip_probe) + this->chip_probe = onenand_chip_probe; + if (!this->read_bufferram) this->read_bufferram = onenand_read_bufferram; if (!this->write_bufferram) @@ -4006,7 +4028,7 @@ int onenand_scan(struct mtd_info *mtd, int maxchips) mtd->ecclayout = this->ecclayout; /* Fill in remaining MTD driver data */ - mtd->type = MTD_NANDFLASH; + mtd->type = ONENAND_IS_MLC(this) ? MTD_MLCNANDFLASH : MTD_NANDFLASH; mtd->flags = MTD_CAP_NANDFLASH; mtd->erase = onenand_erase; mtd->point = NULL; |