MDIO_SUP_PREAMBLE  222 drivers/net/ethernet/atheros/atl1e/atl1e_hw.h #define     MDIO_SUP_PREAMBLE       0x400000      /* Suppress preamble */
MDIO_SUP_PREAMBLE  162 drivers/net/ethernet/atheros/atlx/atlx.h #define MDIO_SUP_PREAMBLE		0x400000