diff mbox series

net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode

Message ID 20200830173432.14960-1-grygorii.strashko@ti.com
State New
Headers show
Series net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode | expand

Commit Message

Grygorii Strashko Aug. 30, 2020, 5:34 p.m. UTC 
In RMII link mode it's required to set bit 15 IFCTL_A in MAC_SL MAC_CONTROL
register to enable support for 100Mbit link speed.

Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>

---
 drivers/net/ethernet/ti/am65-cpsw-nuss.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.17.1

Comments

David Miller Aug. 31, 2020, 8:07 p.m. UTC | #1 
From: Grygorii Strashko <grygorii.strashko@ti.com>

Date: Sun, 30 Aug 2020 20:34:32 +0300

> In RMII link mode it's required to set bit 15 IFCTL_A in MAC_SL MAC_CONTROL

> register to enable support for 100Mbit link speed.

> 

> Fixes: 93a76530316a ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")

> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>


Applied and queued up for v5.7+ -stable, thanks.
diff mbox series

Patch

diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
index cb994f66c3be..9baf3f3da91e 100644
--- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c
+++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c
@@ -174,6 +174,8 @@  void am65_cpsw_nuss_adjust_link(struct net_device *ndev)
 		if (phy->speed == 10 && phy_interface_is_rgmii(phy))
 			/* Can be used with in band mode only */
 			mac_control |= CPSW_SL_CTL_EXT_EN;
+		if (phy->speed == 100 && phy->interface == PHY_INTERFACE_MODE_RMII)
+			mac_control |= CPSW_SL_CTL_IFCTL_A;
 		if (phy->duplex)
 			mac_control |= CPSW_SL_CTL_FULLDUPLEX;