[PATCH v2] net: ti cpsw ethernet: set IFCTL_A bit in MACCONTROL

[Daniel Mack <zonque@gmail.com>]

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>
---
 drivers/net/ethernet/ti/cpsw.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index aa78168..fb1a692 100644
--- 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;
-- 
1.7.11.4