Source: https://lore.kernel.org/all/20241016-b4-rk3588-bridge-upstream-v10-0-87ef92a6d14e@collabora.com/^ ----------------------------- **Quote from source:** Subject: [PATCH v10 0/3] Add initial support for the Rockchip RK3588 HDMI TX Controller Date: Wed, 16 Oct 2024 23:06:50 +0300 The Rockchip RK3588 SoC family integrates the Synopsys DesignWare HDMI 2.1 Quad-Pixel (QP) TX controller, which is a new IP block, quite different from those used in the previous generations of Rockchip SoCs. The controller supports the following features, among others: * Fixed Rate Link (FRL) * Display Stream Compression (DSC) * 4K@120Hz and 8K@60Hz video modes * Variable Refresh Rate (VRR) including Quick Media Switching (QMS) * Fast Vactive (FVA) * SCDC I2C DDC access * Multi-stream audio * Enhanced Audio Return Channel (EARC) This is the last component that needs to be supported in order to enable the HDMI output functionality on the RK3588 based SBCs, such as the RADXA Rock 5B. The other components are the Video Output Processor (VOP2) and the Samsung IP based HDMI/eDP TX Combo PHY, for which basic support has been already made available via [1] and [2], respectively. Please note this is a reworked version of the original series, which relied on a commonized dw-hdmi approach. Since the general consensus was to handle it as an entirely new IP, I dropped all patches related to the old dw-hdmi and Rockchip glue code - a few of them might still make sense as general improvements and will be submitted separately. It's worth mentioning the HDMI output support is currently limited to RGB output up to 4K@60Hz, without audio, CEC or any of the HDMI 2.1 specific features. Moreover, the VOP2 driver is not able to properly handle all display modes supported by the connected screens, e.g. it doesn't cope with non-integer refresh rates. A possible workaround consists of enabling the display controller to make use of the clock provided by the HDMI PHY PLL. This is still work in progress and will be submitted later, as well as the required DTS updates. To facilitate testing and experimentation, all HDMI output related patches, including those part of this series, are available at [3]. So far I could only verify this on the RADXA Rock 5B board. Thanks, Cristian [1]: 5a028e8f062f ("drm/rockchip: vop2: Add support for rk3588") [2]: 553be2830c5f ("phy: rockchip: Add Samsung HDMI/eDP Combo PHY driver") [3]: https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux/-/commits/rk3588-hdmi-bridge-v6.12-rc2 [4]: https://lore.kernel.org/lkml/20240801-dw-hdmi-qp-tx-v1-0-148f542de5fd@collabora.com/ Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> |
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| .github | ||
| .vscode | ||
| config | ||
| extensions | ||
| lib | ||
| packages | ||
| patch | ||
| tools | ||
| .editorconfig | ||
| .gitignore | ||
| action.yml | ||
| compile.sh | ||
| CONTRIBUTING.md | ||
| CREDITS.md | ||
| LICENSE | ||
| README.md | ||
| requirements.txt | ||
| shell.nix | ||
| VERSION | ||
What does this project do?
- Builds custom kernel, image or a distribution optimized for low-resource hardware,
- Include filesystem generation, low-level control software, kernel image and bootloader compilation,
- Provides a consistent user experience by keeping system standards across different platforms.
Getting started
Requirements for self hosted
- x86_64 / aarch64 machine
- at least 2GB of memory and ~35GB of disk space for VM, container or bare metal installation
- Armbian / Ubuntu Jammy 22.04.x for native building or any Docker capable Linux for containerised
- Windows 10/11 with WSL2 subsystem running Ubuntu Jammy 22.04.x
- Superuser rights (configured sudo or root access).
- Make sure your system is up-to-date! Outdated Docker binaries, for example, can cause trouble.
For stable branch use --branch=v24.11
apt-get -y install git
git clone --depth=1 --branch=main https://github.com/armbian/build
cd build
./compile.sh
- Interactive graphical interface.
- Prepares the workspace by installing the necessary dependencies and sources.
- It guides the entire process and creates a kernel package or a ready-to-use SD card image.
Build parameter examples
Show work-in-progress areas in interactive mode:
./compile.sh EXPERT="yes"
Build minimal CLI Armbian Jammy for Bananapi M5 with LTS kernel:
./compile.sh \
BOARD=bananapim5 \
BRANCH=current \
RELEASE=jammy \
BUILD_MINIMAL=yes \
BUILD_DESKTOP=no \
KERNEL_CONFIGURE=no
Build with GitHub actions: (advanced version)
name: "Build Armbian"
on:
workflow_dispatch:
jobs:
build-armbian:
runs-on: ubuntu-latest
steps:
- uses: armbian/build@main
with:
armbian_token: "${{ secrets.GITHUB_TOKEN }}" # GitHub token
armbian_release: "jammy" # userspace
armbian_target: "build" # build=image, kernel=kernel
armbian_board: "bananapim5" # build target
Generated image will be uploaded to your repository release. Note: GitHub upload file limit is 2Gb.
More information:
- Building Armbian (how to start)
- Build commands and switches (build options)
- User configuration (how to add packages, patches, and override sources config)
- System config (menu driven utility to setup OS and HW features)
Download prebuilt images releases
Point
- manually released standard supported builds (quarterly)
Rolling
- automatically released staging and standard supported builds (daily)
- automatically released community maintained builds (weekly)
Compared with industry standards
Expand
Check similarities, advantages and disadvantages compared with leading industry standard build software.| Function | Armbian | Yocto | Buildroot |
|---|---|---|---|
| Target | general purpose | embedded | embedded / IOT |
| U-boot and kernel | compiled from sources | compiled from sources | compiled from sources |
| Board support maintenance | complete | outside | outside |
| Root file system | Debian or Ubuntu based | custom | custom |
| Package manager | APT | any | none |
| Configurability | limited | large | large |
| Initramfs support | yes | yes | yes |
| Getting started | quick | very slow | slow |
| Cross compilation | yes | yes | yes |
Project structure
Expand
├── cache Work / cache directory
│ ├── aptcache Packages
│ ├── ccache C/C++ compiler
│ ├── docker Docker last pull
│ ├── git-bare Minimal Git
│ ├── git-bundles Full Git
│ ├── initrd Ram disk
│ ├── memoize Git status
│ ├── patch Kernel drivers patch
│ ├── pip Python
│ ├── rootfs Compressed userspaces
│ ├── sources Kernel, u-boot and other sources
│ ├── tools Additional tools like ORAS
│ └── utility
├── config Packages repository configurations
│ ├── targets.conf Board build target configuration
│ ├── boards Board configurations
│ ├── bootenv Initial boot loaders environments per family
│ ├── bootscripts Initial Boot loaders scripts per family
│ ├── cli CLI packages configurations per distribution
│ ├── desktop Desktop packages configurations per distribution
│ ├── distributions Distributions settings
│ ├── kernel Kernel build configurations per family
│ ├── sources Kernel and u-boot sources locations and scripts
│ ├── templates User configuration templates which populate userpatches
│ └── torrents External compiler and rootfs cache torrents
├── extensions Extend build system with specific functionality
├── lib Main build framework libraries
│ ├── functions
│ │ ├── artifacts
│ │ ├── bsp
│ │ ├── cli
│ │ ├── compilation
│ │ ├── configuration
│ │ ├── general
│ │ ├── host
│ │ ├── image
│ │ ├── logging
│ │ ├── main
│ │ └── rootfs
│ └── tools
├── output Build artifact
│ └── deb Deb packages
│ └── images Bootable images - RAW or compressed
│ └── debug Patch and build logs
│ └── config Kernel configuration export location
│ └── patch Created patches location
├── packages Support scripts, binary blobs, packages
│ ├── blobs Wallpapers, various configs, closed source bootloaders
│ ├── bsp-cli Automatically added to armbian-bsp-cli package
│ ├── bsp-desktop Automatically added to armbian-bsp-desktopo package
│ ├── bsp Scripts and configs overlay for rootfs
│ └── extras-buildpkgs Optional compilation and packaging engine
├── patch Collection of patches
│ ├── atf ARM trusted firmware
│ ├── kernel Linux kernel patches
| | └── family-branch Per kernel family and branch
│ ├── misc Linux kernel packaging patches
│ └── u-boot Universal boot loader patches
| ├── u-boot-board For specific board
| └── u-boot-family For entire kernel family
├── tools Tools for dealing with kernel patches and configs
└── userpatches User: configuration patching area
├── lib.config User: framework common config/override file
├── config-default.conf User: default user config file
├── customize-image.sh User: script will execute just before closing the image
├── atf User: ARM trusted firmware
├── kernel User: Linux kernel per kernel family
├── misc User: various
└── u-boot User: universal boot loader patches
Contribution
Want to help?
We always need those volunteering positions:
Just apply and follow!
Support
For commercial or prioritized assistance:
- Book an hour of professional consultation
- Consider becoming a project partner
- Contact us!
Free support:
Find free support via general project search engine, documentation, community forums or IRC/Discord. Remember that our awesome community members mainly provide this in a best-effort manner, so there are no guaranteed solutions.
Contact
- Forums for Participate in Armbian
- IRC:
#armbianon Libera.chat / oftc.net - Matrix: https://forum.armbian.com/topic/40413-enter-the-matrix/
- Discord: https://discord.gg/armbian
- Follow @armbian on 𝕏 (formerly known as Twitter), Mastodon or LinkedIn.
- Bugs: issues / JIRA
- Office hours: Wednesday, 12 midday, 18 afternoon, CET
Contributors
Thank you to all the people who already contributed to Armbian!
Also
- Current and past contributors, our families and friends.
- Support staff that keeps forums usable.
- Friends and individuals who support us with resources and their time.
- The Armbian Community helps with their ideas, reports and donations.
Armbian Partners
Armbian's partnership program helps to support Armbian and the Armbian community! Please take a moment to familiarize yourself with our Partners:
Star History
License
This software is published under the GPL-2.0 License license.
