net: netcp: ethss: add support for handling rgmii link interface

2u cpsw hardware on K2G uses rgmii link to interface with Phy. So add
support for this interface in the code so that driver can be re-used
for 2u hardware.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/netcp.h b/drivers/net/ethernet/ti/netcp.h
index 8900a6f..416f732 100644 (file)
--- a/drivers/net/ethernet/ti/netcp.h
+++ b/drivers/net/ethernet/ti/netcp.h
@@ -33,6 +33,8 @@
 #define SGMII_LINK_MAC_MAC_FORCED      2
 #define SGMII_LINK_MAC_FIBER           3
 #define SGMII_LINK_MAC_PHY_NO_MDIO     4
+#define RGMII_LINK_MAC_PHY             5
+#define RGMII_LINK_MAC_PHY_NO_MDIO     7
 #define XGMII_LINK_MAC_PHY             10
 #define XGMII_LINK_MAC_MAC_FORCED      11
 

diff --git a/drivers/net/ethernet/ti/netcp_ethss.c b/drivers/net/ethernet/ti/netcp_ethss.c
index e1e67ff..68b10b5 100644 (file)
--- a/drivers/net/ethernet/ti/netcp_ethss.c
+++ b/drivers/net/ethernet/ti/netcp_ethss.c
@@ -2096,8 +2096,9 @@ static void netcp_ethss_link_state_action(struct gbe_priv *gbe_dev,
                                     ALE_PORT_STATE_FORWARD);
 
                if (ndev && slave->open &&
-                   slave->link_interface != SGMII_LINK_MAC_PHY &&
-                   slave->link_interface != XGMII_LINK_MAC_PHY)
+                   ((slave->link_interface != SGMII_LINK_MAC_PHY) &&
+                   (slave->link_interface != RGMII_LINK_MAC_PHY) &&
+                   (slave->link_interface != XGMII_LINK_MAC_PHY)))
                        netif_carrier_on(ndev);
        } else {
                writel(mac_control, GBE_REG_ADDR(slave, emac_regs,
@@ -2106,8 +2107,9 @@ static void netcp_ethss_link_state_action(struct gbe_priv *gbe_dev,
                                     ALE_PORT_STATE,
                                     ALE_PORT_STATE_DISABLE);
                if (ndev &&
-                   slave->link_interface != SGMII_LINK_MAC_PHY &&
-                   slave->link_interface != XGMII_LINK_MAC_PHY)
+                   ((slave->link_interface != SGMII_LINK_MAC_PHY) &&
+                   (slave->link_interface != RGMII_LINK_MAC_PHY) &&
+                   (slave->link_interface != XGMII_LINK_MAC_PHY)))
                        netif_carrier_off(ndev);
        }
 
@@ -2921,6 +2923,7 @@ static int init_slave(struct gbe_priv *gbe_dev, struct gbe_slave *slave,
 
        slave->open = false;
        if ((slave->link_interface == SGMII_LINK_MAC_PHY) ||
+           (slave->link_interface == RGMII_LINK_MAC_PHY) ||
            (slave->link_interface == XGMII_LINK_MAC_PHY))
                slave->phy_node = of_parse_phandle(node, "phy-handle", 0);
        slave->port_num = gbe_get_slave_port(gbe_dev, slave->slave_num);
@@ -3082,6 +3085,9 @@ static void init_secondary_ports(struct gbe_priv *gbe_dev,
        if (slave->link_interface == SGMII_LINK_MAC_PHY) {
                phy_mode = PHY_INTERFACE_MODE_SGMII;
                slave->phy_port_t = PORT_MII;
+       } else if (slave->link_interface == RGMII_LINK_MAC_PHY) {
+               phy_mode = PHY_INTERFACE_MODE_RGMII;
+               slave->phy_port_t = PORT_MII;
        } else {
                phy_mode = PHY_INTERFACE_MODE_NA;
                slave->phy_port_t = PORT_FIBRE;
@@ -3089,6 +3095,7 @@ static void init_secondary_ports(struct gbe_priv *gbe_dev,
 
        for_each_sec_slave(slave, gbe_dev) {
                if ((slave->link_interface != SGMII_LINK_MAC_PHY) &&
+                   (slave->link_interface != RGMII_LINK_MAC_PHY) &&
                    (slave->link_interface != XGMII_LINK_MAC_PHY))
                        continue;
                slave->phy =