Hi Dinh,

Please check and apply this patch?

Thanks, Nobuhiro

2024年10月4日(金) 15:16 Nobuhiro Iwamatsu iwamatsu@nigauri.org:

From: Nobuhiro Iwamatsu iwamatsu@nigauri.org

On SoCFPGA/Sodia board, mdio bus cannot be probed, so the PHY cannot be found and the network device does not work.

stmmaceth ff702000.ethernet eth0: __stmmac_open: Cannot attach to PHY (error: -19)

To probe the mdio bus, add "snps,dwmac-mdio" as compatible string of the mdio bus. Also the PHY ID connected to this board is 4. Therefore, change to 4.

Fixes: 8fbc10b995a5 ("net: stmmac: check fwnode for phy device before scanning for phy") Cc: stable@vger.kernel.org # 6.3+ Signed-off-by: Nobuhiro Iwamatsu iwamatsu@nigauri.org

---

arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts b/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts index ce0d6514eeb571..e4794ccb8e413f 100644 --- a/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts +++ b/arch/arm/boot/dts/intel/socfpga/socfpga_cyclone5_sodia.dts @@ -66,8 +66,10 @@ &gmac1 { mdio0 { #address-cells = <1>; #size-cells = <0>;

•           phy0: ethernet-phy@0 {
  

•                   reg = <0>;
  

•           compatible = "snps,dwmac-mdio";
  

•           phy0: ethernet-phy@4 {
  

•                   reg = <4>;
                    rxd0-skew-ps = <0>;
                    rxd1-skew-ps = <0>;
                    rxd2-skew-ps = <0>;
  

-- 2.45.2