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From: Grygorii Strashko <grygorii.strashko@ti.com>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, <netdev@vger.kernel.org>
Cc: <linux-kernel@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	Vignesh Raghavendra <vigneshr@ti.com>,
	Grygorii Strashko <grygorii.strashko@ti.com>
Subject: [PATCH] net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode
Date: Sun, 30 Aug 2020 20:34:32 +0300	[thread overview]
Message-ID: <20200830173432.14960-1-grygorii.strashko@ti.com> (raw)

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


WARNING: multiple messages have this Message-ID (diff)
From: Grygorii Strashko <grygorii.strashko@ti.com>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,  <netdev@vger.kernel.org>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Vignesh Raghavendra <vigneshr@ti.com>
Subject: [PATCH] net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode
Date: Sun, 30 Aug 2020 20:34:32 +0300	[thread overview]
Message-ID: <20200830173432.14960-1-grygorii.strashko@ti.com> (raw)

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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             reply	other threads:[~2020-08-30 17:34 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-30 17:34 Grygorii Strashko [this message]
2020-08-30 17:34 ` [PATCH] net: ethernet: ti: am65-cpsw: fix rmii 100Mbit link mode Grygorii Strashko
2020-08-31 20:07 ` David Miller
2020-08-31 20:07   ` David Miller

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