[PATCH 4.4 13/41] net: bcmgenet: Fix RGMII_MODE_EN value for GENET v1/2/3

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From: Florian Fainelli <f.fainelli@xxxxxxxxx>

[ Upstream commit efb86fede98cdc70b674692ff617b1162f642c49 ]

The RGMII_MODE_EN bit value was 0 for GENET versions 1 through 3, and
became 6 for GENET v4 and above, account for that difference.

Fixes: aa09677cba42 ("net: bcmgenet: add MDIO routines")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Acked-by: Doug Berger <opendmb@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/ethernet/broadcom/genet/bcmgenet.h |    1 +
 drivers/net/ethernet/broadcom/genet/bcmmii.c   |    6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -362,6 +362,7 @@ struct bcmgenet_mib_counters {
 #define  EXT_ENERGY_DET_MASK		(1 << 12)
 
 #define EXT_RGMII_OOB_CTRL		0x0C
+#define  RGMII_MODE_EN_V123		(1 << 0)
 #define  RGMII_LINK			(1 << 4)
 #define  OOB_DISABLE			(1 << 5)
 #define  RGMII_MODE_EN			(1 << 6)
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -328,7 +328,11 @@ int bcmgenet_mii_config(struct net_devic
 	 */
 	if (priv->ext_phy) {
 		reg = bcmgenet_ext_readl(priv, EXT_RGMII_OOB_CTRL);
-		reg |= RGMII_MODE_EN | id_mode_dis;
+		reg |= id_mode_dis;
+		if (GENET_IS_V1(priv) || GENET_IS_V2(priv) || GENET_IS_V3(priv))
+			reg |= RGMII_MODE_EN_V123;
+		else
+			reg |= RGMII_MODE_EN;
 		bcmgenet_ext_writel(priv, reg, EXT_RGMII_OOB_CTRL);
 	}
 





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