net: ti cpsw ethernet: set IFCTL_A bit in MACCONTROL

For RMII/RGMII mode operation in 100Mbps, the CPSW needs to set the
IFCTL_A bits in the MACCONTROL register. For all other PHY modes, this
bit is unused, so setting it unconditionally shouldn't cause any
trouble.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Cc: Mugunthan V N <mugunthanvnm@ti.com>
Cc: Vaibhav Hiremath <hvaibhav@ti.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 0cbc0e5..df55e24 100644 (file)
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -386,6 +386,11 @@ static void _cpsw_adjust_link(struct cpsw_slave *slave,
                        mac_control |= BIT(7);  /* GIGABITEN    */
                if (phy->duplex)
                        mac_control |= BIT(0);  /* FULLDUPLEXEN */
+
+               /* set speed_in input in case RMII mode is used in 100Mbps */
+               if (phy->speed == 100)
+                       mac_control |= BIT(15);
+
                *link = true;
        } else {
                mac_control = 0;