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Ryan Chen 22cf7cc602 airoha: fix EN7581 PCIe initialization and add x2 link support 
Fix two hardware initialization issues in the EN7581 PCIe controller
and add support for x2 (2-lane) link mode.

Fixes:

The upstream EN7581 PCIe initialization writes EQ presets and PIPE
configuration registers before clk_bulk_prepare_enable(). Since the
MAC clocks are not yet running at that point, these register writes
are silently dropped, leaving the hardware with default values. This
can cause link training failures or suboptimal equalization.

Additionally, after link training the MAC may only advertise Gen1-Gen2
capability in the Link Capabilities 2 register despite the PHY being
configured for Gen3. A serdes reset toggle forces the MAC to re-read
PHY capability, recovering Gen3 8GT/s link speed.

Both issues are addressed by separating PERST from the clock callbacks
(patch 911), allowing the PCIe controller driver to properly sequence
PERST, clock enable, and register writes (patch 912).

New feature:

PCIe x2 mode support for EN7581 using the NP_SCU system controller
for serdes mux routing, PERST management, and lane configuration.
Both bonded MACs are configured for x2 operation with proper EQ
presets before link training begins.

Signed-off-by: Ryan Chen <rchen14b@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/21978
Signed-off-by: Robert Marko <robimarko@gmail.com>
(cherry picked from commit 8b9bd686e7c705dca28849882f53cf416559e1df)
[ refresh patch ]
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
(cherry picked from commit db4a0d5935899ac955a84fc1e9d60d419f4f9c93)
2026-08-18 11:40:41 +01:00
.devcontainer/ci-env
.github formal: fix workflow permissions 2026-07-09 10:57:34 +01:00
.gitlab ci: build: generate release version files for tags 2026-08-18 09:06:22 +00:00
.testbed ci: testbed: labgrid: bump OSPv2 login_timeout for lcm_data reformat 2026-07-02 07:30:07 +02:00
.vscode meta: VS Code: add "Git: Always Sign Off" setting 2024-10-03 17:18:51 +02:00
config mold: dont allow on MacOS 2026-07-09 10:57:30 +01:00
include OpenWrt v24.10.6: revert to branch defaults 2026-08-18 11:40:40 +01:00
LICENSES
package openssl: update to version 3.0.20 2026-08-18 11:40:40 +01:00
profiles profiles: prpl_core.yml: feed_prplmesh: pwhm: fix setting fh ssid leads to disconnecting extender on bh BSS 2026-08-17 13:25:51 +01:00
scripts scripts/ext-tools.sh: set all prebuilt tool files to same timestamp 2026-08-18 11:40:40 +01:00
target airoha: fix EN7581 PCIe initialization and add x2 link support 2026-08-18 11:40:41 +01:00
toolchain toolchain: glibc: Update glibc 2.38 to recent HEAD 2025-07-27 19:47:26 +02:00
tools tools/ccache: same behaviour for local and CI builds 2026-07-09 10:57:30 +01:00
.gitattributes
.gitignore ci: cram: add DHCPv4 Force option cram tests 2026-06-02 17:59:31 +01:00
.gitlab-ci.yml ci: docker: drop the in-tree testbed container 2026-07-28 10:14:51 +01:00
BSDmakefile
Config.in
COPYING
feeds.conf.default OpenWrt v24.10.6: revert to branch defaults 2026-08-18 11:40:40 +01:00
Makefile build,base-files: propagate prplOS version into build artifacts 2025-07-31 15:18:10 +00:00
README.md
rules.mk build: do not set CCACHE_COMPILERCHECK 2026-08-18 11:40:40 +01:00

README.md

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.

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 #openwrt on oftc.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0