Just collecting some info here in case someone wants to pick up where I left of. I got curious about the Galachip GC1601. Googling Galachip or GC1601 has yielded not much useful really (no company website or historical record that such a company existed). Looking into some device trees, I see `compatible = "faraday,gc1601";`. [Faraday Tech](https://www.faraday-tech.com/) is an IP vendor, it seems. I have had a quick peek into the firmware of [TP-Link XZ000-G7](https://www.tp-link.com/nordic/service-provider/gpon/xz000-g7/). [Some additional information about TP-Link XZ000-G7 in Portuguese](https://www.tripleoxygen.net/wiki/ont/tplink/xz000-g7-br-v1). * ARM 32-bit * uses kernel 3.16 * uclibc based userspace * /etc/config.sdk in rootfs suggests some custom Galachip specific SDK ~~and that they use a (given the ancient kernel and user space) a surprisingly recent U-Boot version `GC_UBOOT_202007rc2=y`~~