[PATCH 2/2] net: ti cpsw ethernet: set IFCTL_{A,B} bits for RMII mode
From: Daniel Mack <zonque@gmail.com>
Date: 2012-09-26 17:24:28
Also in:
netdev
Subsystem:
networking drivers, the rest, ti ethernet switch driver (cpsw) · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
For RMII mode operation in 100Mbps, the CPSW needs to set the IFCTL_A / IFCTL_B bits in the MACCONTROL register. Signed-off-by: Daniel Mack <zonque@gmail.com> Cc: Mugunthan V N <redacted> Cc: Vaibhav Hiremath <redacted> Cc: David S. Miller <davem@davemloft.net> --- drivers/net/ethernet/ti/cpsw.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 3d7594e..d88dbfa 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c@@ -386,6 +386,12 @@ 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 >10Mbps */ + if (phy->speed > 10 && slave->slave_num < 2 && + phy->interface == PHY_INTERFACE_MODE_RMII) + mac_control |= BIT(15 + slave->slave_num); + *link = true; } else { mac_control = 0;
--
1.7.11.4