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[2.205.18.238]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b7077cfa966sm453741766b.65.2025.11.01.06.28.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Nov 2025 06:28:15 -0700 (PDT) From: Jonas Gorski To: Florian Fainelli , Andrew Lunn , Vladimir Oltean , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: Florian Fainelli , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net 2/2] net: dsa: b53: fix bcm63xx RGMII port link adjustment Date: Sat, 1 Nov 2025 14:28:07 +0100 Message-ID: <20251101132807.50419-3-jonas.gorski@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20251101132807.50419-1-jonas.gorski@gmail.com> References: <20251101132807.50419-1-jonas.gorski@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 Reviewed-by: Florian Fainelli --- drivers/net/dsa/b53/b53_common.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_com= mon.c index cb28256ef3cc..bb2c6dfa7835 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -1602,8 +1602,11 @@ static void b53_phylink_mac_link_down(struct phylink= _config *config, struct b53_device *dev =3D dp->ds->priv; int port =3D dp->index; =20 - if (mode =3D=3D MLO_AN_PHY) + if (mode =3D=3D MLO_AN_PHY) { + if (is63xx(dev) && in_range(port, B53_63XX_RGMII0, 4)) + b53_force_link(dev, port, false); return; + } =20 if (mode =3D=3D MLO_AN_FIXED) { b53_force_link(dev, port, false); @@ -1631,6 +1634,13 @@ static void b53_phylink_mac_link_up(struct phylink_c= onfig *config, if (mode =3D=3D MLO_AN_PHY) { /* Re-negotiate EEE if it was enabled already */ p->eee_enabled =3D 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; } =20 --=20 2.43.0