Christian Marangi 692459dd4e
qualcommbe: ipq95xx: Make RPM partition read-only
Make the RPM partition read-only. This was a mistake and a leftover from
staging branch but I can take this mistake as an excuse to document the
current problem with RPM.

It might happen that a board ship with a broken RPM .mbn, broken not in
the sense that the board doesn't boot or it's a brick but broken in the
sense that it's outdaed and suffer from a bug fixed in new version.

This bug consist in a problem with the regulators between USB and NSS.
The old RPM mess with the NSS regulator (l2) and change the voltage for
it while configuring the USB regulator (l5).
This cause the ethernet subsystem to malfunction with the port not
working.

To workaround this, it's needed to disable RPM handling and CPUFreq.
With these 2 disabled, the old RPM doesn't touch regulators and Ethernet
works correctly.

New RPM correctly handle regulators for USB (l5) and doesn't suffer from
this problem. A solution for this is getting discussed with QCOM hoping
to get some good feedback for it.

Link: https://github.com/openwrt/openwrt/pull/17788
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-04-10 15:01:12 +02:00
2025-04-10 13:42:22 +02:00
2024-05-17 22:03:06 +03:00
2021-02-05 14:54:47 +01:00

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 macOS 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

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