1 files changed, 6 insertions, 2 deletions

diff --git a/arch/arm/mach-davinci/include/mach/nand.h b/arch/arm/mach-davinci/include/mach/nand.h
index aa482841270b..b520c4b5678a 100644
--- a/arch/arm/mach-davinci/include/mach/nand.h
+++ b/arch/arm/mach-davinci/include/mach/nand.h
@@ -68,10 +68,14 @@ struct davinci_nand_pdata {		/* platform_data */
 
         /* none  == NAND_ECC_NONE (strongly *not* advised!!)
          * soft  == NAND_ECC_SOFT
-         * 1-bit == NAND_ECC_HW
-         * 4-bit == NAND_ECC_HW_SYNDROME (not on all chips)
+         * else  == NAND_ECC_HW, according to ecc_bits
+         *
+         * All DaVinci-family chips support 1-bit hardware ECC.
+         * Newer ones also support 4-bit ECC, but are awkward
+         * using it with large page chips.
          */
         nand_ecc_modes_t        ecc_mode;
+        u8                      ecc_bits;
 
         /* e.g. NAND_BUSWIDTH_16 or NAND_USE_FLASH_BBT */
         unsigned                options;