The underlying operating system for DifuseHQ's embedded routing devices
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Michael Pratt 4c1e9bd858 ramips: lzma-loader: use virtual memory segments for uart base address
The native bus address for UART was entered for rt305x UART_BASE,
but the bootloaders have memory space remapped with the same
virtual memory map the kernel uses for program addressing at boot time.

In UBoot, the remapped address is often defined as TEXT_BASE.
In the kernel, for rt305x this remapped address is RT305X_SYSC_BASE.
(arch/mips/include/asm/mach-ralink/rt305x.h)

Because the ralink I/O busses begin at a low address of 0x10000000,
they are remapped using KSEG0 or KSEG1, which for all 32-bit MIPS SOCs
(arch/mips/include/asm/addrspace.h)
are offsets of 0x80000000 and 0xa0000000 respectively.
This is consistent with the other UART_BASE macros here
and with MIPS memory map documentation.

Before the recent rework of the lzma-loader for ramips,
the original board-$(PLATFORM).c files also did not
use KSEG1ADDR for UART_BASE despite being defined,
which made this mistake easier to occur.

Fix this by defining KSEG1ADDR again and actually use it.
Copy and paste from the kernel's macros for consistency.

Link: https://training.mips.com/basic_mips/PDF/Memory_Map.pdf
Fixes: c31319b66 ("ramips: lzma-loader: Refactor loader")
Reported-by: Lech Perczak <lech.perczak@gmail.com>
Signed-off-by: Michael Pratt <mcpratt@pm.me>
2024-01-02 22:10:34 +01:00
.devcontainer/ci-env devcontainer: Add development environment for gihub codespace 2023-10-30 23:34:26 +01:00
.github CI: issue-labeller: fix wrong CRLF line-ending 2023-11-16 12:38:18 +01:00
config target: Make TARGET_SERIAL independent of GRUB configuration 2023-11-29 23:43:01 +01:00
include kernel: bump 6.1 to 6.1.70 2024-01-02 18:28:58 +01:00
LICENSES LICENSES: include all used licenses in LICENSES directory 2021-02-14 19:21:38 +01:00
package mediatek: Add support for D-Link EAGLE PRO AI R32 2024-01-02 21:22:46 +01:00
scripts image: fix Linksys image alignment and simplify footer creation 2023-11-26 18:37:20 +01:00
target ramips: lzma-loader: use virtual memory segments for uart base address 2024-01-02 22:10:34 +01:00
toolchain toolchain/gdb: add pthread to CFLAGS/LDFLAGS for zstd 2023-12-19 10:54:19 +01:00
tools tools/cmake: update to 3.28.1 2023-12-18 12:55:28 +01:00
.gitattributes add .gitattributes to prevent the git autocrlf option from messing with CRLF/LF in files 2012-05-08 13:30:49 +00:00
.gitignore .gitignore: ignore link if target is included from feed 2023-07-26 17:45:11 +02:00
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 Revert "feeds: use git-src-full to allow Git versioning" 2023-05-23 14:38:55 +02:00
Makefile build: fix pkg-config detection when inside of a nix-shell 2023-11-02 20:26:32 +01:00
README.md build: drop support for python 3.6 2023-05-22 13:23:35 +02:00
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