TX39_IRCTRL2_WAITVAL_SHIFT
((cr) | (((val) << TX39_IRCTRL2_WAITVAL_SHIFT) & \
(TX39_IRCTRL2_WAITVAL_MASK << TX39_IRCTRL2_WAITVAL_SHIFT)))
((cr) &= ~(TX39_IRCTRL2_WAITVAL_MASK << TX39_IRCTRL2_WAITVAL_SHIFT))
