BCH_BHERR_INDEX0_SHIFT 44 drivers/mtd/nand/raw/ingenic/jz4725b_bch.c #define BCH_BHERR_INDEX0_MASK (0x1fff << BCH_BHERR_INDEX0_SHIFT) BCH_BHERR_INDEX0_SHIFT 259 drivers/mtd/nand/raw/ingenic/jz4725b_bch.c bit = (reg & BCH_BHERR_INDEX0_MASK) >> BCH_BHERR_INDEX0_SHIFT;