In the past the ONFI never worked dut to u-boot aborted when nand device id not found in ids table. Now if not found in ids table, u-boot still continues to detect by ONFI way.
Signed-off-by: Shengzhou Liu Shengzhou.Liu@freescale.com --- drivers/mtd/nand/nand_base.c | 26 ++++++++++++++++---------- 1 files changed, 16 insertions(+), 10 deletions(-)
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index 27f6c77..fd38477 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2592,10 +2592,17 @@ static const struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, if (*dev_id == type->id) break;
+ if (!type->name || !type->pagesize) { + /* Check if chip is ONFI compliant */ + ret = nand_flash_detect_onfi(mtd, chip, &busw); + if (ret) + goto ident_done; + } + if (!type->name) { /* supress warning if there is no nand */ if (*maf_id != 0x00 && *maf_id != 0xff && - *dev_id != 0x00 && *dev_id != 0xff) + *dev_id != 0x00 && *dev_id != 0xff) printk(KERN_INFO "%s: unknown NAND device: " "Manufacturer ID: 0x%02x, Chip ID: 0x%02x\n", __func__, *maf_id, *dev_id); @@ -2608,14 +2615,19 @@ static const struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, chip->chipsize = (uint64_t)type->chipsize << 20; chip->onfi_version = 0;
- ret = nand_flash_detect_onfi(mtd, chip, &busw); - if (!ret) - nand_flash_detect_non_onfi(mtd, chip, type, &busw); + nand_flash_detect_non_onfi(mtd, chip, type, &busw);
/* Get chip options, preserve non chip based options */ chip->options &= ~NAND_CHIPOPTIONS_MSK; chip->options |= type->options & NAND_CHIPOPTIONS_MSK;
+ /* Check if chip is a not a samsung device. Do not clear the + * options for chips which are not having an extended id. + */ + if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize) + chip->options &= ~NAND_SAMSUNG_LP_OPTIONS; + +ident_done: /* * Set chip as a default. Board drivers can override it, if necessary */ @@ -2657,12 +2669,6 @@ static const struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd, chip->badblockpos = mtd->writesize > 512 ? NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
- /* Check if chip is a not a samsung device. Do not clear the - * options for chips which are not having an extended id. - */ - if (*maf_id != NAND_MFR_SAMSUNG && !type->pagesize) - chip->options &= ~NAND_SAMSUNG_LP_OPTIONS; - /* Check for AND chips with 4 page planes */ if (chip->options & NAND_4PAGE_ARRAY) chip->erase_cmd = multi_erase_cmd;