FSL_RE_ADDR_BIT_SHIFT
chan->inb_phys_addr >> FSL_RE_ADDR_BIT_SHIFT);
chan->oub_phys_addr >> FSL_RE_ADDR_BIT_SHIFT);
#define FSL_RE_ADDR_BIT_MASK (BIT(FSL_RE_ADDR_BIT_SHIFT) - 1)