| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.8 088/186] net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode | Date | Tue, 8 Sep 2020 17:23:50 +0200 |
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From: Grygorii Strashko <grygorii.strashko@ti.com>
[ Upstream commit c2f89219f559502c9292d79f695bab9dcec532d1 ]
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> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Sasha Levin <sashal@kernel.org> --- 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 88832277edd5a..c7c9980e02604 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -172,6 +172,8 @@ 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; -- 2.25.1
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