Subject: [PATCH RFC net-next 7/7] net: dsa: mv88e6xxx: remove handling for DSA and CPU ports

From: "Russell King (Oracle)" <[email-masked]>
Date: Wed, 22 Mar 2023 12:00:26 +0000

As we now always use a fixed-link for DSA and CPU ports, we no longer
need the hack in the Marvell code to make this work. Remove it.

This is especially important with the conversion of DSA drivers to
phylink_pcs, as the PCS code only gets called if we are using
phylink for the port.

Signed-off-by: Russell King (Oracle) <[email-masked]>
---
 drivers/net/dsa/mv88e6xxx/chip.c | 48 ++++----------------------------
 1 file changed, 5 insertions(+), 43 deletions(-)

diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index dde0c306fb3a..35dcfe86bdc4 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -3395,56 +3395,17 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 {
 	struct device_node *phy_handle = NULL;
 	struct dsa_switch *ds = chip->ds;
-	phy_interface_t mode;
 	struct dsa_port *dp;
-	int tx_amp, speed;
+	int tx_amp;
 	int err;
 	u16 reg;
 
 	chip->ports[port].chip = chip;
 	chip->ports[port].port = port;
 
-	dp = dsa_to_port(ds, port);
-
-	/* MAC Forcing register: don't force link, speed, duplex or flow control
-	 * state to any particular values on physical ports, but force the CPU
-	 * port and all DSA ports to their maximum bandwidth and full duplex.
-	 */
-	if (dsa_is_cpu_port(ds, port) || dsa_is_dsa_port(ds, port)) {
-		struct phylink_config pl_config = {};
-		unsigned long caps;
-
-		chip->info->ops->phylink_get_caps(chip, port, &pl_config);
-
-		caps = pl_config.mac_capabilities;
-
-		if (chip->info->ops->port_max_speed_mode)
-			mode = chip->info->ops->port_max_speed_mode(port);
-		else
-			mode = PHY_INTERFACE_MODE_NA;
-
-		if (caps & MAC_10000FD)
-			speed = SPEED_10000;
-		else if (caps & MAC_5000FD)
-			speed = SPEED_5000;
-		else if (caps & MAC_2500FD)
-			speed = SPEED_2500;
-		else if (caps & MAC_1000)
-			speed = SPEED_1000;
-		else if (caps & MAC_100)
-			speed = SPEED_100;
-		else
-			speed = SPEED_10;
-
-		err = mv88e6xxx_port_setup_mac(chip, port, LINK_FORCED_UP,
-					       speed, DUPLEX_FULL,
-					       PAUSE_OFF, mode);
-	} else {
-		err = mv88e6xxx_port_setup_mac(chip, port, LINK_UNFORCED,
-					       SPEED_UNFORCED, DUPLEX_UNFORCED,
-					       PAUSE_ON,
-					       PHY_INTERFACE_MODE_NA);
-	}
+	err = mv88e6xxx_port_setup_mac(chip, port, LINK_UNFORCED,
+				       SPEED_UNFORCED, DUPLEX_UNFORCED,
+				       PAUSE_ON, PHY_INTERFACE_MODE_NA);
 	if (err)
 		return err;
 
@@ -3616,6 +3577,7 @@ static int mv88e6xxx_setup_port(struct mv88e6xxx_chip *chip, int port)
 	}
 
 	if (chip->info->ops->serdes_set_tx_amplitude) {
+		dp = dsa_to_port(ds, port);
 		if (dp)
 			phy_handle = of_parse_phandle(dp->dn, "phy-handle", 0);
 
-- 
2.30.2