Hi,
the TP-Link Archer C5 v1, which is indeed the same as Archer C7 v2 https://openwrt.org/toh/tp-link/archer-c5-c7-wdr7500 only appears on the ar71xx list.
Also I only see an image for archer-c5-v1-squashfs-factory.bin on https://downloads.openwrt.org/snapshots/targets/ar71xx/generic/ so I think this device is not migrated from ar71xx to ath79. Since the device is the same as C7 v2 which is already on ath79: what is needed to migrate the C5 v1 to ath79 also?