Merge branch 'orion-fixes2'

[linux-2.6] / drivers / mtd / nand / Kconfig

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index dcbb0decd46552116f447107e8e1285919abdc59..5076faf9ca66c54ae300d960f5befccbfc01fb55 100644 (file)
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -278,6 +278,47 @@ config MTD_NAND_AT91
        help
          Enables support for NAND Flash / Smart Media Card interface
          on Atmel AT91 processors.
+choice
+       prompt "ECC management for NAND Flash / SmartMedia on AT91"
+       depends on MTD_NAND_AT91
+
+config MTD_NAND_AT91_ECC_HW
+       bool "Hardware ECC"
+       depends on ARCH_AT91SAM9263 || ARCH_AT91SAM9260
+       help
+         Uses hardware ECC provided by the at91sam9260/at91sam9263 chip
+         instead of software ECC.
+         The hardware ECC controller is capable of single bit error
+         correction and 2-bit random detection per page.
+
+         NB : hardware and software ECC schemes are incompatible.
+         If you switch from one to another, you'll have to erase your
+         mtd partition.
+
+         If unsure, say Y
+
+config MTD_NAND_AT91_ECC_SOFT
+       bool "Software ECC"
+       help
+         Uses software ECC.
+
+         NB : hardware and software ECC schemes are incompatible.
+         If you switch from one to another, you'll have to erase your
+         mtd partition.
+
+config MTD_NAND_AT91_ECC_NONE
+       bool "No ECC (testing only, DANGEROUS)"
+       depends on DEBUG_KERNEL
+       help
+         No ECC will be used.
+         It's not a good idea and it should be reserved for testing
+         purpose only.
+
+         If unsure, say N
+
+         endchoice
+
+endchoice
 
 config MTD_NAND_PXA3xx
        bool "Support for NAND flash devices on PXA3xx"