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Jonas Jelonek 203b8886bd realtek: pcs: rtl93xx: fix SerDes polarity configuration for RTL931X 
Commit 56e9a73d0b added support for configuring the SerDes polarity for
both RTL930X and RTL931X. Based on the code in the Realtek SDK in [1]
and [2], in both cases the same register bits are set. Thus, a common
implementation was provided which worked with e.g. USXGMII or 10GBase-R
configured SerDes.

However, after further tests, a strange issue occured where it didn't
work that well for all SerDes configurations. While running fine for
10GBase-R links on two adjacent SerDes, it didn't for 1000Base-X links
on one of two adjacent SerDes with the link not being detected as a
symptom.

Diving into the SDK again revealed that the referenced implementation of
polarity configuration is (by accident or by purpose) misleading. While
[1] and [3] for RTL930X match, [2] and [4] for RTL931X actually don't.
[4] writes the bits for the 1G polarity setting on different background
SerDes, thus in another frontend page.

Split implementations for RTL930X and RTL931X again and adjust the one
for RTL931X according to [4]. This resolves the issues with 1000Base-X
behavior.

[1] 69d2890a2e/sources/rtk-xgs1210/src/hal/phy/phy_rtl9300.c (L1384)
[2] 69d2890a2e/sources/rtk-xgs1210/src/hal/phy/phy_rtl9310.c (L3479)
[3] 69d2890a2e/sources/rtk-xgs1210/src/dal/longan/dal_longan_construct.c (L2246)
[4] 69d2890a2e/sources/rtk-xgs1210/src/dal/mango/dal_mango_construct.c (L1550)

Fixes: 56e9a73d0b ("realtek: pcs: rtl93xx: provide proper SerDes polarity
configuration")
Signed-off-by: Jonas Jelonek <jelonek.jonas@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/20767
Signed-off-by: Robert Marko <robimarko@gmail.com>
2025-11-15 11:16:20 +01:00
.devcontainer/ci-env devcontainer: Add development environment for gihub codespace 2023-10-30 23:34:26 +01:00
.github CI: labeler: Add econet 2025-09-12 21:04:15 +02:00
.vscode meta: VS Code: add "Git: Always Sign Off" setting 2024-10-03 17:18:51 +02:00
config build: Add _FORTIFY_SOURCE=3 support 2025-10-26 01:43:01 +02:00
include prereq-build: add Python 3.13 support 2025-11-12 12:11:15 +01:00
LICENSES LICENSES: include all used licenses in LICENSES directory 2021-02-14 19:21:38 +01:00
package wifi-scripts: ucode: create wpa_psk_file and sae_password_file when needed 2025-11-15 11:13:36 +01:00
scripts scripts: feeds: Don’t hardcode IS_TTY 2025-11-12 12:05:53 +01:00
target realtek: pcs: rtl93xx: fix SerDes polarity configuration for RTL931X 2025-11-15 11:16:20 +01:00
toolchain toolchain: gdb: Update to version 16.3 2025-11-08 20:58:30 +01:00
tools tools: firmware-utils: update to Git HEAD (2025-11-11) 2025-11-11 21:29:22 +01:00
.gitattributes .gitattributes: ignore some whitespace "violations" in .patch files 2024-12-12 11:01:56 +01:00
.gitignore gitignore: ignore local APK keys 2024-05-17 22:03:06 +03:00
BSDmakefile build: use SPDX license tags 2021-02-05 14:54:47 +01:00
Config.in build: scripts/config - update to kconfig-v5.14 2022-02-19 13:10:01 +01:00
COPYING COPYING: add COPYING file to specify project licenses 2021-02-14 19:21:38 +01:00
feeds.conf.default feeds.conf.default: enable video feed by default 2024-12-05 01:34:01 +00:00
Makefile build: include tests/Makefile if available 2024-06-17 17:51:31 +02:00
README.md README: replace "MacOSX" with "macOS" 2024-04-01 18:46:30 +02:00
rules.mk rules.mk: add DEPRECATION NOTICE for AUTORELEASE 2025-10-29 21:09:57 +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