BCM6368_NAND_ENABLE_SHIFT
#define BCM6368_NAND_ENABLE_MASK (0xffff << BCM6368_NAND_ENABLE_SHIFT)
val |= BCM6368_CTRL_READY << BCM6368_NAND_ENABLE_SHIFT;
val &= ~(BCM6368_CTRL_READY << BCM6368_NAND_ENABLE_SHIFT);