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| author | Jonas Gorski <jonas.gorski@gmail.com> | 2025-11-01 14:28:07 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-11-13 15:34:37 -0500 |
| commit | 734a04aa66477a9764d39d57cd8c9eb675ccfc82 (patch) | |
| tree | bc94bff4d9ea79e268867e0ebba5b09aa70dddf8 | |
| parent | 5a8d24ef5272fc9396c85fd22cbd34aeeefedd2e (diff) | |
| download | linux-734a04aa66477a9764d39d57cd8c9eb675ccfc82.tar.gz linux-734a04aa66477a9764d39d57cd8c9eb675ccfc82.tar.bz2 linux-734a04aa66477a9764d39d57cd8c9eb675ccfc82.zip | |
net: dsa: b53: fix bcm63xx RGMII port link adjustment
[ Upstream commit 3e4ebdc1606adf77744cf8ed7a433d279fdc57ba ]
BCM63XX's switch does not support MDIO scanning of external phys, so its
MACs needs to be manually configured for autonegotiated link speeds.
So b53_force_port_config() and b53_force_link() accordingly also when
mode is MLO_AN_PHY for those ports.
Fixes lower speeds than 1000/full on rgmii ports 4 - 7.
This aligns the behaviour with the old bcm63xx_enetsw driver for those
ports.
Fixes: 967dd82ffc52 ("net: dsa: b53: Add support for Broadcom RoboSwitch")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/20251101132807.50419-3-jonas.gorski@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/dsa/b53/b53_common.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index 318c5c2c8f74..914dbb86e1b0 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1554,8 +1554,11 @@ static void b53_phylink_mac_link_down(struct phylink_config *config, struct b53_device *dev = dp->ds->priv; int port = dp->index; - if (mode == MLO_AN_PHY) + if (mode == MLO_AN_PHY) { + if (is63xx(dev) && in_range(port, B53_63XX_RGMII0, 4)) + b53_force_link(dev, port, false); return; + } if (mode == MLO_AN_FIXED) { b53_force_link(dev, port, false); @@ -1583,6 +1586,13 @@ static void b53_phylink_mac_link_up(struct phylink_config *config, if (mode == MLO_AN_PHY) { /* Re-negotiate EEE if it was enabled already */ p->eee_enabled = b53_eee_init(ds, port, phydev); + + if (is63xx(dev) && in_range(port, B53_63XX_RGMII0, 4)) { + b53_force_port_config(dev, port, speed, duplex, + tx_pause, rx_pause); + b53_force_link(dev, port, true); + } + return; } |