diff options
| author | Murali Karicheri <m-karicheri2@ti.com> | 2018-04-17 17:30:35 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-04-18 21:00:57 -0400 |
| commit | 7771f2b4d0f774de752346d6340cd79c1d0b0477 (patch) | |
| tree | 484eb26d8c03940366617da5b20abddc320976e1 /drivers/net/ethernet/ti/netcp_ethss.c | |
| parent | 478e9a5fcf3fda621f3d660979c42d24f3435d73 (diff) | |
net: netcp: ethss: use rgmii link status for 2u cpsw hardware
Introduce rgmii link status to handle link state events for 2u
cpsw hardware on K2G.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/ti/netcp_ethss.c')
| -rw-r--r-- | drivers/net/ethernet/ti/netcp_ethss.c | 34 |
1 files changed, 27 insertions, 7 deletions
diff --git a/drivers/net/ethernet/ti/netcp_ethss.c b/drivers/net/ethernet/ti/netcp_ethss.c index 68b10b5f9a51..83acb728a8f7 100644 --- a/drivers/net/ethernet/ti/netcp_ethss.c +++ b/drivers/net/ethernet/ti/netcp_ethss.c @@ -171,6 +171,11 @@ #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 SLAVE_LINK_IS_SGMII(s) \ + ((s)->link_interface <= SGMII_LINK_MAC_PHY_NO_MDIO) #define NETCP_LINK_STATE_INVALID -1 #define GBE_SET_REG_OFS(p, rb, rn) p->rb##_ofs.rn = \ @@ -554,6 +559,7 @@ struct gbe_ss_regs { struct gbe_ss_regs_ofs { u16 id_ver; u16 control; + u16 rgmii_status; /* 2U */ }; struct gbe_switch_regs { @@ -2122,23 +2128,35 @@ static bool gbe_phy_link_status(struct gbe_slave *slave) return !slave->phy || slave->phy->link; } +#define RGMII_REG_STATUS_LINK BIT(0) + +static void netcp_2u_rgmii_get_port_link(struct gbe_priv *gbe_dev, bool *status) +{ + u32 val = 0; + + val = readl(GBE_REG_ADDR(gbe_dev, ss_regs, rgmii_status)); + *status = !!(val & RGMII_REG_STATUS_LINK); +} + static void netcp_ethss_update_link_state(struct gbe_priv *gbe_dev, struct gbe_slave *slave, struct net_device *ndev) { - int sp = slave->slave_num; - int phy_link_state, sgmii_link_state = 1, link_state; + bool sw_link_state = true, phy_link_state; + int sp = slave->slave_num, link_state; if (!slave->open) return; - if (!SLAVE_LINK_IS_XGMII(slave)) { - sgmii_link_state = - netcp_sgmii_get_port_link(SGMII_BASE(gbe_dev, sp), sp); - } + if (SLAVE_LINK_IS_RGMII(slave)) + netcp_2u_rgmii_get_port_link(gbe_dev, + &sw_link_state); + if (SLAVE_LINK_IS_SGMII(slave)) + sw_link_state = + netcp_sgmii_get_port_link(SGMII_BASE(gbe_dev, sp), sp); phy_link_state = gbe_phy_link_status(slave); - link_state = phy_link_state & sgmii_link_state; + link_state = phy_link_state & sw_link_state; if (atomic_xchg(&slave->link_state, link_state) != link_state) netcp_ethss_link_state_action(gbe_dev, ndev, slave, @@ -3437,6 +3455,8 @@ static int set_gbenu_ethss_priv(struct gbe_priv *gbe_dev, /* Subsystem registers */ GBENU_SET_REG_OFS(gbe_dev, ss_regs, id_ver); + /* ok to set for MU, but used by 2U only */ + GBENU_SET_REG_OFS(gbe_dev, ss_regs, rgmii_status); /* Switch module registers */ GBENU_SET_REG_OFS(gbe_dev, switch_regs, id_ver); |