diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/nand_base.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index d340b2f198c6..00022b456dff 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -2935,29 +2935,34 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, int i; int val; - /* ONFI need to be probed in 8 bits mode, and 16 bits should be selected with NAND_BUSWIDTH_AUTO */ - if (chip->options & NAND_BUSWIDTH_16) { - pr_err("Trying ONFI probe in 16 bits mode, aborting !\n"); - return 0; - } /* Try ONFI for unknown chip or LP */ chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1); if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' || chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I') return 0; + /* + * ONFI must be probed in 8-bit mode or with NAND_BUSWIDTH_AUTO, not + * with NAND_BUSWIDTH_16 + */ + if (chip->options & NAND_BUSWIDTH_16) { + pr_err("ONFI cannot be probed in 16-bit mode; aborting\n"); + return 0; + } + chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1); for (i = 0; i < 3; i++) { chip->read_buf(mtd, (uint8_t *)p, sizeof(*p)); if (onfi_crc16(ONFI_CRC_BASE, (uint8_t *)p, 254) == le16_to_cpu(p->crc)) { - pr_info("ONFI param page %d valid\n", i); break; } } - if (i == 3) + if (i == 3) { + pr_err("Could not find valid ONFI parameter page; aborting\n"); return 0; + } /* Check version */ val = le16_to_cpu(p->revision); @@ -3009,10 +3014,11 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip, /* The Extended Parameter Page is supported since ONFI 2.1. */ if (nand_flash_detect_ext_param_page(mtd, chip, p)) - pr_info("Failed to detect the extended param page.\n"); + pr_warn("Failed to detect ONFI extended param page\n"); + } else { + pr_warn("Could not retrieve ONFI ECC requirements\n"); } - pr_info("ONFI flash detected\n"); return 1; } |