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Subject[PATCH] net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode
Date
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(+)

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;

--
2.17.1
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