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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Maxime Coquelin , Alexandre Torgue , Heiner Kallweit , Russell King , "Russell King (Oracle)" Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org, sophgo@lists.linux.dev, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Yixun Lan , Longbin Li Subject: [PATCH v5 3/3] net: stmmac: dwmac-sophgo: Add phy interface filter Date: Fri, 31 Oct 2025 09:24:28 +0800 Message-ID: <20251031012428.488184-4-inochiama@gmail.com> X-Mailer: git-send-email 2.51.2 In-Reply-To: <20251031012428.488184-1-inochiama@gmail.com> References: <20251031012428.488184-1-inochiama@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" As the SG2042 has an internal rx delay, the delay should be removed when initializing the mac, otherwise the phy will be misconfigurated. Fixes: 543009e2d4cd ("net: stmmac: dwmac-sophgo: Add support for Sophgo SG2= 042 SoC") Signed-off-by: Inochi Amaoto Tested-by: Han Gao Reviewed-by: Andrew Lunn --- .../ethernet/stmicro/stmmac/dwmac-sophgo.c | 20 ++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c b/drivers/n= et/ethernet/stmicro/stmmac/dwmac-sophgo.c index 3b7947a7a7ba..fcdda2401968 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c @@ -7,11 +7,16 @@ =20 #include #include +#include #include #include =20 #include "stmmac_platform.h" =20 +struct sophgo_dwmac_data { + bool has_internal_rx_delay; +}; + static int sophgo_sg2044_dwmac_init(struct platform_device *pdev, struct plat_stmmacenet_data *plat_dat, struct stmmac_resources *stmmac_res) @@ -32,6 +37,7 @@ static int sophgo_sg2044_dwmac_init(struct platform_devic= e *pdev, static int sophgo_dwmac_probe(struct platform_device *pdev) { struct plat_stmmacenet_data *plat_dat; + const struct sophgo_dwmac_data *data; struct stmmac_resources stmmac_res; struct device *dev =3D &pdev->dev; int ret; @@ -50,11 +56,23 @@ static int sophgo_dwmac_probe(struct platform_device *p= dev) if (ret) return ret; =20 + data =3D device_get_match_data(&pdev->dev); + if (data && data->has_internal_rx_delay) { + plat_dat->phy_interface =3D phy_fix_phy_mode_for_mac_delays(plat_dat->ph= y_interface, + false, true); + if (plat_dat->phy_interface =3D=3D PHY_INTERFACE_MODE_NA) + return -EINVAL; + } + return stmmac_dvr_probe(dev, plat_dat, &stmmac_res); } =20 +static const struct sophgo_dwmac_data sg2042_dwmac_data =3D { + .has_internal_rx_delay =3D true, +}; + static const struct of_device_id sophgo_dwmac_match[] =3D { - { .compatible =3D "sophgo,sg2042-dwmac" }, + { .compatible =3D "sophgo,sg2042-dwmac", .data =3D &sg2042_dwmac_data }, { .compatible =3D "sophgo,sg2044-dwmac" }, { /* sentinel */ } }; --=20 2.51.2