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Wu, Josh a07d229497 ARM: at91: atmel_nand: add code to check the ONFI parameter ECC requirement 
1. if CONFIG_SYS_NAND_ONFI_DETECTION is defined, driver will check NAND flash's
   ecc minimum requirement in ONFI parameter.

  a) if CONFIG_PMECC_CAP, CONFIG_PMECC_SECTOR_SIZE are defined. then use it.
     Driver will display a WARNING if the values are different from ONFI
     parameters.

  b) if CONFIG_PMECC_CAP, CONFIG_PMECC_SECTOR_SIZE are not defined, then use
      the value from ONFI parameters.
      * If ONFI ECC parameters are in ONFI extended parameter page, since we
        are not support it, so assume the minimum ecc requirement is 2 bits
        in 512 bytes.
      * For non-ONFI support nand flash, also assume the minimum ecc
        requirement is 2 bits in 512 bytes.

2. if CONFIG_SYS_NAND_ONFI_DETECTION is not defined, just use CONFIG_PMECC_CAP
   and CONFIG_PMECC_SECTOR_SIZE.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
2013-08-22 16:50:52 +02:00
..
nand ARM: at91: atmel_nand: add code to check the ONFI parameter ECC requirement 2013-08-22 16:50:52 +02:00
onenand Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
spi Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
ubi Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
at45.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
cfi_flash.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
cfi_mtd.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
dataflash.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
ftsmc020.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
jedec_flash.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
Makefile Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00
mtdconcat.c mtd: resync with Linux-3.7.1 2013-05-31 17:12:03 -05:00
mtdcore.c mtd: resync with Linux-3.7.1 2013-05-31 17:12:03 -05:00
mtdpart.c mtd: resync with Linux-3.7.1 2013-05-31 17:12:03 -05:00
mw_eeprom.c Update i386 code (sc520_cdp) 2008-09-09 11:48:53 +02:00
st_smi.c Add GPL-2.0+ SPDX-License-Identifier to source files 2013-07-24 09:44:38 -04:00