sven-ola

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