linux-kernel - [PATCH net-next] net: lan966x: Extend lan966x with RGMII support

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Date:   Thu, 1 Sep 2022 14:23:46 +0200
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <linux@...linux.org.uk>,
        <UNGLinuxDriver@...rochip.com>, <maxime.chevallier@...tlin.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next] net: lan966x: Extend lan966x with RGMII support

Extend lan966x with RGMII support. The MAC supports all RGMII_* modes.

Signed-off-by: Horatiu Vultur <horatiu.vultur@...rochip.com>
---
 drivers/net/ethernet/microchip/lan966x/lan966x_main.c    | 8 ++++++++
 drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c | 3 +++
 2 files changed, 11 insertions(+)

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 1d6e3b641b2e..e2d250ed976b 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -772,6 +772,14 @@ static int lan966x_probe_port(struct lan966x *lan966x, u32 p,
 
 	__set_bit(PHY_INTERFACE_MODE_MII,
 		  port->phylink_config.supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_RGMII,
+		  port->phylink_config.supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_RGMII_ID,
+		  port->phylink_config.supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_RGMII_RXID,
+		  port->phylink_config.supported_interfaces);
+	__set_bit(PHY_INTERFACE_MODE_RGMII_TXID,
+		  port->phylink_config.supported_interfaces);
 	__set_bit(PHY_INTERFACE_MODE_GMII,
 		  port->phylink_config.supported_interfaces);
 	__set_bit(PHY_INTERFACE_MODE_SGMII,
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c b/drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c
index 38a7e95d69b4..fb6aee509656 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_phylink.c
@@ -59,6 +59,9 @@ static void lan966x_phylink_mac_link_up(struct phylink_config *config,
 	port_config->pause |= tx_pause ? MLO_PAUSE_TX : 0;
 	port_config->pause |= rx_pause ? MLO_PAUSE_RX : 0;
 
+	if (phy_interface_mode_is_rgmii(interface))
+		phy_set_speed(port->serdes, speed);
+
 	lan966x_port_config_up(port);
 }
 
-- 
2.33.0