Any generic guides for building firmware for devices with modded flash memory?

[frollic]

TP-Link Archer C2 V1 8MB to 32MB Flash

Hi, All! I have a TP-Link Archer C2 AC750 v.1. I replaced flash memory on N25Q256A13 (32 MB). I flashing OpenWRT and do not see the entire amount of flash memory. After that, I change part of the file /home/alexander/openwrt/target/linux/ramips/dts/mt7620a_tplink_archer-c2-v1.dts partition@0 { label = "u-boot"; reg = <0x0 0x20000>; read-only; }; partition@20000 { compatible = "tplink,firmware"; label = "firmware"; reg = <0x20000 0x1fa0000>; }; partit…