sven-ola

Thanks. Found a post from @igor basically stating the same. I'll continue to work on the RV2 here for that reason.

Grmbl. As it turns out after some reversing and building uboot for the RV2, there seems to be a toolchain by xunlong with much similarities to armbian-build on https://github.com/orangepi-xunlong/orangepi-build.git There is an Ubuntu image for the RV2 one can download from gdrive and install to SD. This image has a package linux-u-boot-orangepirv2-current.deb installed. With very much the same postinst script than the similar package from Armbian / Banana Pi F3. Hence the RV2 package obviously was build from their build tree, family file is external/config/sources/families/ky.conf which looks familiar. Also their project has some non-documentation, meaning there is a "build.sh" and a very small README.md. I'm unsure if I should continue this...

Need to post some corrections. The board loads and starts uboot directly from an inserted SD, so no need to be extra careful. Also: the upper M.2 is not recognized by stock uboot, so may next step is to compile u-boot to investigate.

As a follow up: got my board yesterday. 2GB RAM as announced, no obvious bringup probs. The Ubuntu image runs from SD, UART ok, got 80mb/s from SD and around ~300mb/s from an 128GB 2230 NVME. No boot from upper m.2, only lower m.2 boots (works as announced). The SBC starts via uboot stored on the 16mbyte SPI flash, so I think it should be possible to also boot from upper m.2 since the uboot recognizes media both m.2 slots. Currently unclear how to recover from damaged SPI flash, so I need to proceed carefully. Uboot env is closed (bootdelay=0), so first task is to open up uboot cmd line. Theres a boot switch that seems to trigger some USB boot from ROM but thats undocumented AFAICT. Plenty to investigate for my 50 bucks 😉

@Igor wrote about upcoming Muse Pi Pro (a SpacemiT K1 board). Orange Pi RV2 features a "Ky X1" SoC which may be a variant of the SpacemiT SoC and at least similar to the already compile-able Banana Pi F3 board. However, Xunlong seems to be serious about the differences, since the published patch sets on github.com/orangepi-xunlong to kernel and u-boot have a GPL-2 copyright notice, stating I expect my RV2 arriving tomorrow. Thus, it would be very appreciated if support for this board pops up in time 😉 Otherwise I may try my luck with adding Armbian support on my own (without expecting success soon). For clarification, I compiled a list of RISC-V64 boards currently available: Banana Pi F3, runs on SpacemiT K1 8-core X60 RISV-V@1.5? (2 TOPS NPU, 2x1 Gbit, M.2@m, mPCIe, eMMC@soldered, SD/TF) Orange Pi RV, runs on StarFive JH 7110 4-core RISC-V@1.5 (1x1 Gbit, M.2@m, SD/TF, SPI-flash) Orange Pi RV2, runs on Ky X1, 8-core RISC-V@1.5, variant of SpacemiT K1? (2 TOPS NPU, 2x1 Gbit, M.2@m2280, M.2@m2230, SD/TF, eMMC@socket, SPI-flash) Muse Pi Pro runs on overclocked SpacemiT K1 8-core X60 RISC-V@1.8 (2 TOPS NPU, 1x1 Gbit, M.2@m, mPCIe, eMMC@soldered, SPI-flash) Best // Sven-Ola