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Subject[net-next PATCH v2 04/10] net: netcp: ethss: add support for handling sgmii link interface
Date
2u cpsw hardware on K2G uses sgmii link to interface with Phy. So add
support for this interface in the code so that drover can be re-used
for 2u hardware.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
---
drivers/net/ethernet/ti/netcp.h | 2 ++
drivers/net/ethernet/ti/netcp_ethss.c | 18 ++++++++++++++----
2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/ti/netcp.h b/drivers/net/ethernet/ti/netcp.h
index 8900a6f..416f732 100644
--- 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 1dea891..ab9d369 100644
--- a/drivers/net/ethernet/ti/netcp_ethss.c
+++ b/drivers/net/ethernet/ti/netcp_ethss.c
@@ -166,6 +166,9 @@
#define GBE_RXHOOK_ORDER 0
#define GBE_DEFAULT_ALE_AGEOUT 30
#define SLAVE_LINK_IS_XGMII(s) ((s)->link_interface >= XGMII_LINK_MAC_PHY)
+#define SLAVE_LINK_IS_RGMII(s) \
+ (((s)->link_interface >= RGMII_LINK_MAC_PHY) && \
+ ((s)->link_interface <= RGMII_LINK_MAC_PHY_NO_MDIO))
#define NETCP_LINK_STATE_INVALID -1

#define GBE_SET_REG_OFS(p, rb, rn) p->rb##_ofs.rn = \
@@ -2091,8 +2094,9 @@ 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,
@@ -2101,8 +2105,9 @@ 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);
}

@@ -2914,6 +2919,7 @@ 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);
@@ -3076,6 +3082,9 @@ 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;
@@ -3083,6 +3092,7 @@ 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 =
--
1.9.1
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