The underlying operating system for DifuseHQ's embedded routing devices
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Adrian Schmutzler 1deaf695ec ramips: fix/tidy up 4M tplink-v2-image flash layouts
For the TP-Link 4M devices with tplink-v2-image recipe
(mktplinkfw2.c), there are two different flash layouts based
on the size of the (u)boot partition:

device         uboot    OEM firmware  OpenWrt (incl. config)
tl-wr840n-v5   0x20000  0x3c0000      0x3d0000
tl-wr841n-v14  0x10000  0x3d0000      0x3e0000

In both cases, the 0x10000 config partition is used for the firmware
partition as well due to the limited space available and since it's
recreated by the OEM firmware anyway.

However, the TFTP flashing process will only copy data up to the
size of the initial (OEM) firmware size. Therefore, while we can
use the bigger partition to have additional erase blocks on the
device, we have to limit the image sizes to the TFTP limits.

So far, only one layout definition has been set up in mktplinkfw2.c
for 4M mediatek devices. This adds a second one and assigns them
to the devices so the image sizes are correctly restrained.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-08-03 12:17:08 +02:00
.github build: Update README & github help 2018-07-08 09:41:53 +01:00
config kernel: fix missing TRANSPARENT_HUGEPAGE symbols 2020-08-01 14:33:46 +01:00
include build: image: return sizes if check-size fails 2020-08-03 10:40:32 +02:00
package package: replace remaining occurrences of ifconfig with ip 2020-08-03 10:42:35 +02:00
scripts scripts/checkpatch.pl: fix README.md file name after rename 2020-08-02 15:51:39 +02:00
target ramips: fix/tidy up 4M tplink-v2-image flash layouts 2020-08-03 12:17:08 +02:00
toolchain toolchain/binutils: remove versions 2.29.1 and 2.31.1 2020-08-03 10:44:10 +02:00
tools ramips: fix/tidy up 4M tplink-v2-image flash layouts 2020-08-03 12:17:08 +02:00
.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 build: improve ccache support 2020-07-11 15:19:53 +02:00
BSDmakefile add missing copyright header 2007-02-26 01:05:09 +00:00
Config.in merge: base: update base-files and basic config 2017-12-08 19:41:18 +01:00
feeds.conf.default feeds: add freifunk feed 2020-06-24 14:58:17 +02:00
LICENSE LICENSE: use updated GNU copy 2020-08-02 15:54:43 +02:00
logo.svg README: port to 21st century 2020-08-02 15:44:40 +02:00
Makefile build: improve ccache support 2020-07-11 15:19:53 +02:00
README.md README: port to 21st century 2020-08-02 15:44:40 +02:00
rules.mk build: improve ccache support 2020-07-11 15:19:53 +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!

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.

gcc binutils bzip2 flex python3 perl make find grep diff unzip gawk getopt
subversion libz-dev libc-dev

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.

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 freenode.net.

Developer Community

License

OpenWrt is licensed under GPL-2.0