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ea9da67e2a
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 address connected to this board is 4. Therefore, change to 4. Cc: stable@vger.kernel.org # 6.3+ Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org> Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>