> Date: Sun, 18 Feb 2024 12:45:21 +0100 > From: Sylvain Saboua <sylvain.sab...@free.fr>
Hi Sylvain, > It seems I was right to purchase a shorter micro-USB cable. > Now the output of `cu -s 1500000 -l /dev/cuaU0' displays correctly. > > I am still unable to boot from the micro-SD card. > I had succeeded once when the emmc was partially damaged, > even installing openbsd on it alas at the time support was minimal. > > I created my micro-SD card in the most canonical way: > https://pastebin.com/9C3cgr6N These days: # dd if=miniroot74.img of=/dev/rsd2c bs=1m ... # dd if=/usr/local/share/u-boot/firefly-rk3399/u-boot-rockchip.bin of=/dev/rsd2c seek=64 should be enough to get a bootable micro-SD card. Also note that the U-Boot from OpenBSD ports/packages uses the more standard 115200 baudrate. However... > And here is the result/output when trying to boot the chip: > With empty SD card slot: https://pastebin.com/kYNusksB > With SD card inserted: https://pastebin.com/cfesASbm Unfortunately the RK3399 SoC attempts to boot from eMMC before even looking at the micro-SD card. And there is no way to disable the eMMC on the firefly-rk3399 board. So the only way to install OpenBSD on these boards is to erase whatever is stored on the eMMC. This can be done from Linux, but I can't remember the commands I used for that. > Is there no way to boot from an SD card without using tools > available only on either Windows or Linux ? > > Reference links : > ARM SoC official documentation > - https://wiki.t-firefly.com/en/Firefly-RK3399/ > OpenBSD official arm64 documentation / installation notes > - https://www.openbsd.org/arm64.html > - https://ftp.openbsd.org/pub/OpenBSD/7.4/arm64/INSTALL.arm64 > > -- > Sylvain Saboua > www.saboua.xyz > >
