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@kisgezenguz you're welcome. You can check the UART RX/TX paths with the multimeter in diode/continuity mode and checking the continuity against RX (or TX) and the various SMD components. But anyway, if you read 3.3v on all the UART pins, I can guess there are three other hypothesis: * the UART RX/TX pins are correctly connected, but not to the usual debug UART. rk3399 has several uarts, so perhaps that exposed UART is not the same configured in software to be used to log the debug. * MCU_D makes me think that UART is used for the little MCU embedded into rk3399. rk3399 has two small Cortex-M0 cores for very low power tasks. So again that UART is not what you are looking for. * the RX/TX pins are just shorted to high voltage level/pulled ups on purpose (improbable) edit: I just paid attention to the schematic you posted, but it looks it does not match what you've discovered: the schematic says you should read 5.0v on the VCC pin, instead you read 3.3v. Perhaps that MCU_D connector it's definitely not the one you are looking for.

I see there is a "UART" on the front board image, but I guess it does not work for you. Check the sorroundings for possibile missing resistors, sometimes they remove some small SMD resistors to make the UART non-functional. Also note that you must use an adapter that is capable of 1.5Mbps; not all of them can reach such baud rates (AFAIR pl2303 can't, but CH301 should work)

Hello, congratulations for your achievement! I wonder if you had the chance to give a shot to the ssv6051 sibling... the original drivers (one for ssv6051 and another for ssv6x5x) were really a mess that @ilmich and me did a lot of work at the time to cleanup and fix things in the past time. We concentrated against the ssv6051 driver at the time and in fact the ssv6051 driver already works in mainline kernel (it is in the rockchip 32bit patch directory), although it is still quite a mess. Here it is the repository if you want to take a look to the commits. We also started an attempt to do a clean and proper reimplementation of the ssv6xxx driver, but actually never went over firmware loading (the repo is private since it was a heavy WIP, but can share if you have enough will to take a look to that)

Armbian supports boards, not bare SoCs. This thread is about xt-q8l-v10 rk3288 board, which is supported by community and not officially. If you want official support, prefer a SBC which is declared as officially supported, like the Asus Tinkerboard. Community supported boards are "best effort", officially supported boards are usually checked before new armbian releases to maintain general support and functionality.

UPDATE for Multitool Finally I managed to let the Opensource OP-TEE work with the rockchip miniloader! This means that the Multitool should now work on any board, without freezes and booting issues! The new version can be downloaded from the first page of this thread. Please report if it works for you, thanks!

This is the official armbian page with nightly images for all targets (supported and community)

Me neither have any clue about. Surely the problem lays in the closed source proprietary binary Trust OS. It does or expects something and then locks the system with that typical string [2accGZ3... which is probably known only to rockchip engineers. Unfortunately I don't have any board here that exhibit the same behaviour, so the issue is hard to study. To avoid issues with updates, you may want to put the u-boot package on hold using apt-mark hold, so in case of updates, the bootloader won't get updated and you'll be fine.

The issues are definitely related to the Trust OS, as you already noticed in your experiments. You need a build with a different bootloader that contains a different Trust OS or the Opensource TEE, which has no issues so far. An old rk322x_tee.bin file can be found in this old commit, if you want to build an armbian image/bootloader by yourself: substitute it with the existing rk322x_tee.bin and try building an image.

Perhaps you need to set the UART baud rate to 115200bps. Original stock firmware and binaries uses 1.5Mbps, armbian bootloader is set to 115200bps for broader compatibility. You should at least get the ddr initialization messages, there are no chances you get no uart output with armbian unless the image is invalid itself.

The drm_prime error is somehow "normal": AFAIR mpv was trying each hardware decoder in turn and, if it does not support the codec, prints the error and tries the next hardware decoder in line. If you try to decode h.265, perhaps it first picks an hardware decoder which does not support such codec with such parameters and prints the error, then tries another decoder which is capable and everything works. Usually rockchip devices have two hardware decoders, Hantro and rkvdec; Hantro does not support h.265 at all on older chips, but rkvdec does.

@ArturHey you did a lot of experimentation, but actually I think you are stuck on something different. GPT partition error message is something you can totally ignore, either because stock firmware usually don't provide a GPT partition, and armbian images neither do. The rockchip miniloader supports GPT partition table, but it is not mandatory to work. If there's a GPT partition, the miniloader searches for "uboot" and "trust" partitions to use them as hints for the base addresses. If there's no GPT partition, it will just use default base addresses and look for the LOADER and TRUST signatures. Anyway, armbian does not use anything from that: there is no rockchip miniloader, neither are GPT partitions or other proprietary code, except for the Trust OS, which is embedded into u-boot. The boot process is totally different on armbian. Now, the issue you have with flash not being recognized by rkdeveloptool makes me think about three possibile situations: a bug in rkdeveloptool you are still in maskrom mode and did not upload the usbplug firmware with rkdeveloptool db (ie: the board is not yet initialized) a broken flash in the eMCP part You can, for example, refer to the procedure Installation (without SD card, board with eMMC) described in the first post of this thread if you want to write a raw image in the flash memory but I always suggest to erase the flash memory and test the image via sdcard first, rather than installing the image immediately, because you can softbrick the board. About the non-booting multitool, you should post some logs from the serial uart, but probably the main issue is related to the trust os which freezes the board after few seconds.

Technically CMA is not needed at all for the VOP. Rockchip VOP has its own MMU, it is not like raspberry pi or amlogic devices. It should not require to reserve and map memory by the kernel for the VOP as long as the MMU is enabled in the device tree and it is working correctly.

Nice, congratulations! I wonder why cursor does not show when video is playing by the way: there has always been a patch in the armbian code to support hardware cursor, in fact in X11/Wayland the cursor is handled in hardware and it is perfectly visible and usable when a hardware accelerated video is playing. Also I wonder why you need CMA=256M; normally rk322x VPU has its own MMU that is capable to handle direct to memory access without the need of CMA.

@robertoj the problem is not ffmpeg, which already is works totally fine on debian Trixie (and backwards), the problem is within mpv that changed in v0.4.0 carried by debian Trixie, and at the moment I don't have enough motivation to carry on a custom mpv package for Debian Trixie. You may try with debian forky by the way, but it is a moving target as long as it is still in development.

Probably dead, yes. It looks like it is in read-only mode, so you cannot even erase it. Unfortunately for you, the way I designed the armbian boot requires either an empty flash or an installed u-boot that boots from sdcard first. You have three options: 1) hack the armbian boot using the multitool bootloader, but I don't suggest doing so because updates may overwrite the changes 2) remove the eMMC phisically, desoldering it 3) short the eMMC clock pins permanently, similar to what you would do when you want maskrom mode. The board will then always boot from sdcard. See the unbrick paragraph in the first post for some instructions.

Sorry @Harleyyyu, but me and @fabiobassa were a bit puzzled about your journey within the hardware video decoding. I recently tested the kernel 6.18 (but I am pretty sure it works fine also in kernel 6.12/6.6/6.1), but everything was already in place even with zero-copy DMA buffers, using the LibreELEC patches which are already compiled in the mainline kernel shipped with armbian for years right now. Then there is also this apt repository I brought up few months ago with ffmpeg already patched and some instructions to run mpv with hardware decoding, which so far works for me either in virtual terminal and wayland (although sometimes with some glitches). Just to let you know, because it looks like hardware video decoding, HDMI and GPU things are unsupported, but actually everything works fine.

This is not a place for Android ROMs, only armbian here.

@Dangrain There is a paragraph Partecipation and debugging with the suggested operations to let other people help you in a proper way and perhaps improve support for your board in the mainline armbian codebase. You may want to go your own way, but then helping will be much harder.

@Harleyyyu See this thread; hardware video decoding works fine with mainline kernel and does not need vendor MPP. Debian Trixie although has a "broken" mpv that won't work, better stay with Bookworm

Can't you run on sdcard? It is heavily suggested to run on sdcard before installing on emmc. However the overlay is emmc-pins

hello @digital, in some rare cases there are some minor trickeries to try and improve compatibility with eMMC. If you run rk322x-config, there is a panel dedicated to eMMC which allows you to select some compatiblity options, like emmc-pins and DDR/UHS modes. You may try first enabling emmc-pins and rebooting to see if it gets recognized. Anyway photos of the board and the original stock device tree could be useful to identify the compatibility problem.

@0230826 you can follow instructions in this page by @fabiobassa The loader is there too

Probably you have to read again the installation instructions in the first page, in particular you have to use the multitool

modprobe parameter should be crystal=1, not crystal_26M_en anymore (see here) Otherwise you could try led-conf6 overlay (but I don't know if it fits your board...) which has the attribute esp,crystal-26M-en = <1> in the device tree to set the crystal to 26 MHz

No need to recompile, rk322x already have had all the right bits in the right place for years. Everything is written down in the first page of the thread for rk332x tv boxes (What works: ---> Hardware video acceleration) in the hope people read it.