FEC: Add RMII mode support

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Ben Warren <biggerbadderben@gmail.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>

drivers/net/fec_mxc.c

@@ -448,6 +448,8 @@ static int fec_init(struct eth_device *dev, bd_t* bd)
 	rcntrl = PKTSIZE << FEC_RCNTRL_MAX_FL_SHIFT;
 	if (fec->xcv_type == SEVENWIRE)
 		rcntrl |= FEC_RCNTRL_FCE;
+	else if (fec->xcv_type == RMII)
+		rcntrl |= FEC_RCNTRL_RMII;
 	else	/* MII mode */
 		rcntrl |= FEC_RCNTRL_FCE | FEC_RCNTRL_MII_MODE;
 

drivers/net/fec_mxc.h

@@ -194,6 +194,7 @@ struct ethernet_regs {
 #define FEC_RCNTRL_PROM			0x00000008
 #define FEC_RCNTRL_BC_REJ		0x00000010
 #define FEC_RCNTRL_FCE			0x00000020
+#define FEC_RCNTRL_RMII			0x00000100
 
 #define FEC_TCNTRL_GTS			0x00000001
 #define FEC_TCNTRL_HBC			0x00000002
@@ -257,7 +258,8 @@ struct fec_bd {
 enum xceiver_type {
 	SEVENWIRE,	/* 7-wire       */
 	MII10,		/* MII 10Mbps   */
-	MII100		/* MII 100Mbps  */
+	MII100,		/* MII 100Mbps  */
+	RMII		/* RMII */
 };
 
 /**