[PATCH v2 1/1] sh_eth: add RGMII support

[Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>]

The R-Car V3H (AKA R8A77980) GEther controller  adds support for the RGMII
PHY interface mode as a new  value  for the RMII_MII register.

Based on the original (and large) patch by Vladimir Barinov.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

---
Changes in version 2:
- included PHY_INTERFACE_MODE_RGMII_{|RX|TX}ID in the RGMII *case*.

 drivers/net/ethernet/renesas/sh_eth.c |    3 +++
 1 file changed, 3 insertions(+)

Index: net-next/drivers/net/ethernet/renesas/sh_eth.c
===================================================================
--- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c
+++ net-next/drivers/net/ethernet/renesas/sh_eth.c
@@ -466,6 +466,9 @@ static void sh_eth_select_mii(struct net
 	u32 value;
 
 	switch (mdp->phy_interface) {
+	case PHY_INTERFACE_MODE_RGMII ... PHY_INTERFACE_MODE_RGMII_TXID:
+		value = 0x3;
+		break;
 	case PHY_INTERFACE_MODE_GMII:
 		value = 0x2;
 		break;