XL_CMD_DOWN_STALL 1803 dev/ic/xl.c    	CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_STALL);
XL_CMD_DOWN_STALL 2070 dev/ic/xl.c    		CSR_WRITE_2(sc, XL_COMMAND, XL_CMD_DOWN_STALL);