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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Chen Wang , Inochi Amaoto , Maxime Coquelin , Alexandre Torgue , "Russell King (Oracle)" , Han Gao , Icenowy Zheng , Vivian Wang , Yao Zi Cc: netdev@vger.kernel.org, sophgo@lists.linux.dev, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yixun Lan , Longbin Li Subject: [PATCH] net: stmmac: dwmac-sophgo: Add phy interface filter Date: Fri, 17 Oct 2025 09:18:01 +0800 Message-ID: <20251017011802.523140-1-inochiama@gmail.com> X-Mailer: git-send-email 2.51.0 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 remove when init 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 --- .../ethernet/stmicro/stmmac/dwmac-sophgo.c | 25 ++++++++++++++++++- 1 file changed, 24 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..b2dee1399eb0 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sophgo.c @@ -7,6 +7,7 @@ #include #include +#include #include #include @@ -29,8 +30,23 @@ static int sophgo_sg2044_dwmac_init(struct platform_devi= ce *pdev, return 0; } +static int sophgo_sg2042_set_mode(struct plat_stmmacenet_data *plat_dat) +{ + switch (plat_dat->phy_interface) { + case PHY_INTERFACE_MODE_RGMII_ID: + plat_dat->phy_interface =3D PHY_INTERFACE_MODE_RGMII_TXID; + return 0; + case PHY_INTERFACE_MODE_RGMII_RXID: + plat_dat->phy_interface =3D PHY_INTERFACE_MODE_RGMII; + return 0; + default: + return -EINVAL; + } +} + static int sophgo_dwmac_probe(struct platform_device *pdev) { + int (*plat_set_mode)(struct plat_stmmacenet_data *plat_dat); struct plat_stmmacenet_data *plat_dat; struct stmmac_resources stmmac_res; struct device *dev =3D &pdev->dev; @@ -50,11 +66,18 @@ static int sophgo_dwmac_probe(struct platform_device *p= dev) if (ret) return ret; + plat_set_mode =3D device_get_match_data(&pdev->dev); + if (plat_set_mode) { + ret =3D plat_set_mode(plat_dat); + if (ret) + return ret; + } + return stmmac_dvr_probe(dev, plat_dat, &stmmac_res); } static const struct of_device_id sophgo_dwmac_match[] =3D { - { .compatible =3D "sophgo,sg2042-dwmac" }, + { .compatible =3D "sophgo,sg2042-dwmac", .data =3D sophgo_sg2042_set_mode= }, { .compatible =3D "sophgo,sg2044-dwmac" }, { /* sentinel */ } }; -- 2.51.0