#171 Request for support for NanoPi R4S, RockChip RK3399, 4GB RAM

We have NanoPi R2S supported on LibreCMC, we could make support to NanoPi R4S. It would be the most powerful system with LibreCMC (I think). This single-board computer handles 1 Gbps perfectly with OpenWRT, it could be a good replacement for a domestic router installed by ISPs in FTTH installations. The 4GB RAM version is supported by upstream [1], while the 1 GB too althought the lastest snapshot doesn't work with 1 GB version. The SBC uses RK3399 as SoC: u-boot can to be build without blobs because we have source code of ARM Trusted Firmware [2] and we could remove the blobs easily [3], as is recommended for other SBC RK3399 SoC [4]. [1] https://openwrt.org/toh/friendlyarm/nanopi_r4s_v1 [2] https://github.com/ARM-software/arm-trusted-firmware/tree/master/plat/rockchip/rk3399 [3] "find . -name '*.bin' -exec rm -rf {} \;" would be enough [4] https://stikonas.eu/wordpress/2019/09/15/blobless-boot-with-rockpro64/