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

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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: 93a7653031 ("net: ethernet: ti: introduce am65x/j721e gigabit eth subsystem driver")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Grygorii Strashko
2020-08-30 20:34:32 +03:00
committed by David S. Miller
parent 6b6382a857
commit c2f89219f5
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/ti/am65-cpsw-nuss.c
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@@ -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;