I don't know particular about this board so I can only give generic clues and hints how to help us helping you. What kind of dependencies you mean? There is uboot only. For variables and boot script check the contents of /boot Power loss is not an issue. Most that can happen is corrupted rootfs.

ok how i fix it? go next: sudo find /boot -type f -name '*cs0*dtbo' i see on next: rk356x-spi<BUS>-m<MUX>-cs<CS>-spidev.dtbo │ │ │ │ │ │ │ └─ номер Chip-Select (0 или 1) │ │ └─ «mux» — какие именно ноги вывели наружу (m0, m1…) │ └─ номер аппаратного SPI-контроллера (spi0…spi5) └─ серия SoC (rk3566 / rk3568 = rk356x, rk3588 …) next setup instruction: | Шаг | Команды (копируйте строка-в-строку) | Что должно получиться | | | ------------------------------------------------------- | -------------------------------------------------------------------------------------- | ------------------------------------------------ | ---------------------------------------- | | 1. Перейти в домашний каталог | `cd ~` | | | | 2. Создать исходник DTS | `nano rk356x-spi3-m0-cs1-spidev.dts` | вставьте текст снизу → **Ctrl-O, Enter, Ctrl-X** | | | 3. Скомпилировать в DTBO | `dtc -@ -I dts -O dtb -o rk356x-spi3-m0-cs1-spidev.dtbo rk356x-spi3-m0-cs1-spidev.dts` | файл *.dtbo* рядом | | | 4. Узнать каталог оверлеев | `export OVR=/boot/dtb/rockchip/overlay` | (у вас именно такой путь) | | | 5. Скопировать файл | `sudo cp rk356x-spi3-m0-cs1-spidev.dtbo $OVR/` | | | | 6. Проверить | \`ls \$OVR | grep cs1\` | увидите *rk356x-spi3-m0-cs1-spidev.dtbo* | | 7. Убедиться, что в `/boot/orangepiEnv.txt` есть строка | `overlays=spi3-m0-cs0-spidev spi3-m0-cs1-spidev` | если всё ок — дальше | | | 8. Перезагрузить | `sudo reboot` | | | | 9. После ребута | `ls /dev/spidev3.*` | **/dev/spidev3.0 /dev/spidev3.1** | | #6 can be ignored. at #2 next: rk356x-spi3-m0-cs1-spidev.dts <=== name code: /dts-v1/; /plugin/; / { compatible = "rockchip,rk3566"; fragment@0 { target = <&spi3>; __overlay__ { #address-cells = <1>; #size-cells = <0>; status = "okay"; spidev@1 { /* CS1 = регистр 1 */ compatible = "spidev"; reg = <1>; spi-max-frequency = <10000000>; }; }; }; }; sudo reboot after this: ls /dev/spidev3.* orangepi@orangepi3b:~$ ls /dev/spidev3.* /dev/spidev3.0 /dev/spidev3.1 make like

Ok this happened again and I'm out of ideas. @Werner Could you tell me the dependencies for the boot process on this board and how I could read out the values like the boot loader to verify they are still the same? There should be nothing wrong with cutting power right? I have had raspberry pi's be cut from power daily for years without issues and I assume it would work the same for the odroid boards?!

@deskwizard I don't know why I refer to OPi5Max, maybe I had other tab/topic open or so, but it is clear that it is about the OPi5. Now I have the ROCK5B, just cloned the Armbian Bookworm from ROCK3A but did not write SPI yet. Power up with fixed 12V in USB-C and from SD-card with Armbian rock5b vendor U-Boot. rootfs from NVMe, SATA overlay enabled for 3.5inch HDD. 5 audio cards: root@rock5b:~# aplay -l **** List of PLAYBACK Hardware Devices **** card 0: rockchiphdmi0 [rockchip-hdmi0], device 0: rockchip-hdmi0 i2s-hifi-0 [rockchip-hdmi0 i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: rockchiphdmi1 [rockchip-hdmi1], device 0: rockchip-hdmi1 i2s-hifi-0 [rockchip-hdmi1 i2s-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 2: rockchipdp0 [rockchip-dp0], device 0: rockchip-dp0 spdif-hifi-0 [rockchip-dp0 spdif-hifi-0] Subdevices: 1/1 Subdevice #0: subdevice #0 card 4: rockchipes8316 [rockchip-es8316], device 0: dailink-multicodecs ES8316 HiFi-0 [dailink-multicodecs ES8316 HiFi-0] Subdevices: 0/1 Subdevice #0: subdevice #0 card3 (unlisted) is HDMI-input I think, but disabled all in KDE settings tray except the 3.5mm plug ('headphones'). No further settings or volume change, mpv playing an mp3 instantly. I will likely do/test with 6.15 edge, also maybe 6.12 current (and other U-Boots as well). But first several mechanical/cooling things to tweak, need to drill/cut a hole for the SATA connector in the cooling metal I think.

hello guys, i hawe question, my device: orangepi 3b 8gb OS: 1.0.6 Jammy with Linux 5.10.160-rockchip-rk356x 3.3V → 3.3V → PIN 1 GND → GND → PIN 6 SCK → SPI SCK → PIN 23 MOSI → SPI MOSI → PIN 19 MISO → SPI MISO → PIN 21 SDA → CS → SPI CE0 → PIN 24 =========================== /boot/orangepiEnv.txt ``` verbosity=1 bootlogo=true extraargs=cma=128M overlay_prefix=rk356x rootdev=UUID=4b3309b6-9bbe-431d-8609-82360b5b6154 rootfstype=ext4 overlays=spi3-m0-cs0-spidev spi3-m0-cs1-spidev ``` orangepi@orangepi3b:~$ ls /dev/spidev* /dev/spidev3.0 <================= only one... cant add new spidev 3.1 and more.. for connect another mrfc522 how to fix?