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With 5.15 kernel version Linksys EAX500 family devices suffered from a big regression where the Ethernet switch became silent and started to malfunction. It was discovered later that the cause was not really the kernel upgrade itself but a hackish implementation of the hw implementation of these special routers. In the original Linksys source code, GPIO 63 was handled in a special way and was reset on reboot. Normally GPIO 63 is used for pcie2 reset but in every device we support, pcie2 is actually never used as nothing is attached to it. Linksys rerouted GPIO 63 to the switch reset pin and deviates from common hw implementation. Till now it was used an hack to handle this case... It was set pcie3 as working (while actually nothing was connected), set it to output low (for assert-deassert from the pcie init code) and be done with it. The result was that the GPIO was reset for enough time in early boot and everything worked correctly. This hack implementation was born to fail from the very start and in kernel 5.15 finally problem arised. In 5.15 pcie code changed and now the GPIO reset pin is not asserted as probe won't fail if nothing is connected to the line (the old behaviour) This result in the switch hold the reset pin and the Ethernet switch dead. On top of that with 5.15 code got optimized and simply attaching the GPIO reset to the mdio wasn't enough as the switch require at least 10ms to be correctly reset. So implement finally a correct solution where: - pcie2 is correctly disabled (nothing attached, unused) - drop the wrong output-low for pcie2 reset pin - define GPIO 63 as switch reset - Add the reset-gpios to the mdio0 node - Set the reset-post-delay-us to 12ms to correctly give time the switch to reset Fixes: #10983 Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> |
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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 python3.6+ rsync subversion unzip which
Quickstart
-
Run
./scripts/feeds update -ato obtain all the latest package definitions defined in feeds.conf / feeds.conf.default -
Run
./scripts/feeds install -ato install symlinks for all obtained packages into package/feeds/ -
Run
make menuconfigto select your preferred configuration for the toolchain, target system & firmware packages. -
Run
maketo 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.
Related Repositories
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
#openwrton oftc.net.
Developer Community
- Bug Reports: Report bugs in OpenWrt
- Dev Mailing List: Send patches
- Dev Chat: Channel
#openwrt-develon oftc.net.
License
OpenWrt is licensed under GPL-2.0