How to find switch config on installed system

i have router LAVA LR-25G001, he have mt7620a + ar8337( maybe qca8337).I almost finish porting device to lede, but still not all ports work. At now work 3 ports in failsafe 5,2,1 .Guru please help !)

cat /etc/config/network

No... In oem i have Linux 2.6 with another config, and i wants find mdio-bus switch config