+#define EMAC_MR1_FIFO_MASK (EMAC_M1_RFS_MASK | EMAC_M1_TX_FIFO_MASK)
+#if defined(CONFIG_405EZ)
+/* 405EZ only supports 512 bytes fifos */
+#define EMAC_MR1_FIFO_SIZE (EMAC_M1_RFS_512 | EMAC_M1_TX_FIFO_512)
+#else
+/* Set receive fifo to 4k and tx fifo to 2k */
+#define EMAC_MR1_FIFO_SIZE (EMAC_M1_RFS_4K | EMAC_M1_TX_FIFO_2K)
+#endif
+