diff options
| author | Elie De Brauwer <eliedebrauwer@gmail.com> | 2013-08-24 16:51:24 +0200 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2013-09-11 09:33:36 +0200 |
| commit | a8f2d0e6757c8f5391113582d8fecad29dc8cedc (patch) | |
| tree | ca5e4c8972038a1da9b94b096621644fe8e43cd8 | |
| parent | 47ac53d7aee90ec46f7a5b4e10e62114e60b1976 (diff) | |
| download | talos-obmc-uboot-a8f2d0e6757c8f5391113582d8fecad29dc8cedc.tar.gz talos-obmc-uboot-a8f2d0e6757c8f5391113582d8fecad29dc8cedc.zip | |
mxs_nand: Fix ECC strength for NAND flash with OOB size of 224
On a board with an i.mx28 and a Micron MT29F4G08ABAEAH4, Linux says:
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron MT29F4G08ABAEAH4),
512MiB, page size: 4096, OOB size: 224) the ECC strength is 16.
root@(none):/sys/devices/virtual/mtd/mtd0# for i in ecc_strength oobsize subpagesize; do echo $i = `cat $i`; done
ecc_strength = 16
oobsize = 224
subpagesize = 4096
The ECC strength was not properly discovered by U-Boot causing the data
written by Linux to return an -74 (EBADMSG) when read from U-Boot. This
patch fixes mxs_nand_get_ecc_strength() to function in case of a NAND
flash with page_data_size = 4096 and page_oob_size= 224.
Signed-off-by: Elie De Brauwer <eliedebrauwer@gmail.com>
Acked-by: Scott Wood <scottwood@freescale.com>
| -rw-r--r-- | drivers/mtd/nand/mxs_nand.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c index 378f8c513a..036c113ad3 100644 --- a/drivers/mtd/nand/mxs_nand.c +++ b/drivers/mtd/nand/mxs_nand.c @@ -155,6 +155,9 @@ static inline uint32_t mxs_nand_get_ecc_strength(uint32_t page_data_size, if (page_oob_size == 218) return 16; + + if (page_oob_size == 224) + return 16; } return 0; |
