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Chuanhong Guo a6991fc7d2 mediatek: mt7622: add a second u-boot for redmi-ax6s
The vendor u-boot knows nothing about UBI, and we used to have a
fixed-size kernel partition for vendor u-boot and UBI for rootfs.
However, that fixed partition becomes too small eventually, and
expanding it requires complicated procedure.

This commit changed the flash layout and added a second u-boot
where the kernel supposed to be.
Now the vendor u-boot chainloads our mainline u-boot, and our
u-boot reads kernel+rootfs from UBI, verifies it, and boot
into OpenWrt.

There are two possible ways to convert from the old fw:
Flash the factory image using mtd (provided by @rany2):

mount -o remount,ro /
mount -o remount,ro /overlay
cd /tmp
dd if=factory.bin bs=1M count=4 | mtd write - kernel
dd if=factory.bin bs=1M skip=4 | mtd -r write - ubi

Or, flash the 2nd u-boot via mtd and upload the firmware
to the 2nd u-boot using tftp:

1. prepare a tftp server at 192.168.1.254 to serve the
   sysupgrade image:
   openwrt-mediatek-mt7622-xiaomi_redmi-router-ax6s-squashfs-sysupgrade.itb
2. upload the ubi-loader.itb to OpenWrt /tmp, and flash it to
   the old kernel partition:
   mtd -r write openwrt-mediatek-mt7622-xiaomi_redmi-router-ax6s-ubi-loader.itb
3. The router should reboot and flash the sysupgrade image via TFTP.

Procedure for flashing from vendor firmware shouldn't change.

Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
2024-03-21 16:55:13 +08:00
.devcontainer/ci-env devcontainer: Add development environment for gihub codespace 2023-10-30 23:34:26 +01:00
.github ath25: drop target 2024-03-07 12:15:51 +01:00
config kernel: enable KASAN option for more architectures 2024-03-08 16:07:48 +08:00
include kernel: bump 6.1 to 6.1.82 2024-03-19 00:33:51 +01:00
LICENSES
package uboot-mediatek: add support for GD5F1GQ5UE 2024-03-21 16:52:09 +08:00
scripts scripts: Kernel bumper script 2024-03-11 09:53:01 +01:00
target mediatek: mt7622: add a second u-boot for redmi-ax6s 2024-03-21 16:55:13 +08:00
toolchain toolchain: glibc: Update glibc 2.37 to recent HEAD 2024-02-10 12:52:09 +01:00
tools tools: add util-linux 2024-03-11 20:17:25 +01:00
.gitattributes
.gitignore .gitignore: ignore link if target is included from feed 2023-07-26 17:45:11 +02:00
BSDmakefile
Config.in
COPYING
feeds.conf.default
Makefile build: fix pkg-config detection when inside of a nix-shell 2023-11-02 20:26:32 +01:00
README.md
rules.mk rules.mk: make toolchain dirs define more consistent 2023-10-20 16:13:56 +02:00

OpenWrt logo

OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

Sunshine!

Download

Built firmware images are available for many architectures and come with a package selection to be used as WiFi home router. To quickly find a factory image usable to migrate from a vendor stock firmware to OpenWrt, try the Firmware Selector.

If your device is supported, please follow the Info link to see install instructions or consult the support resources listed below.

An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:

Development

To build your own firmware you need a GNU/Linux, BSD or MacOSX system (case sensitive filesystem required). Cygwin is unsupported because of the lack of a case sensitive file system.

Requirements

You need the following tools to compile OpenWrt, the package names vary between distributions. A complete list with distribution specific packages is found in the Build System Setup documentation.

binutils bzip2 diff find flex gawk gcc-6+ getopt grep install libc-dev libz-dev
make4.1+ perl python3.7+ rsync subversion unzip which

Quickstart

  1. Run ./scripts/feeds update -a to obtain all the latest package definitions defined in feeds.conf / feeds.conf.default

  2. Run ./scripts/feeds install -a to install symlinks for all obtained packages into package/feeds/

  3. Run make menuconfig to select your preferred configuration for the toolchain, target system & firmware packages.

  4. Run make to build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

  • LuCI Web Interface: Modern and modular interface to control the device via a web browser.

  • OpenWrt Packages: Community repository of ported packages.

  • OpenWrt Routing: Packages specifically focused on (mesh) routing.

  • OpenWrt Video: Packages specifically focused on display servers and clients (Xorg and Wayland).

Support Information

For a list of supported devices see the OpenWrt Hardware Database

Documentation

Support Community

  • Forum: For usage, projects, discussions and hardware advise.
  • Support Chat: Channel #openwrt on oftc.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0