GMC_F_LOOPB_ON   1900 drivers/net/ethernet/marvell/skge.h 	GMC_F_LOOPB_ON	= 1<<5,	/* FIFO Loopback On */
GMC_F_LOOPB_ON   2032 drivers/net/ethernet/marvell/sky2.h 	GMC_F_LOOPB_ON	= 1<<5,	/* FIFO Loopback On */