based on asuswrt and some code come from https://github.com/RMerl/asuswrt-merlin.ng The GPL source is created for ASUS wireless router related products. Please visit the ASUS support site (http://support.asus.com) to get the latest GPL tarball.It has a lot in common with many wireless router open source projects, including Oleg/Tomato/DD-WRT/OpenWRT. Thanks the developers of those projects for making the source code available. Set Up Environment(Tested in Fedora 8/9 and Ubuntu) 1. prepare environment a. Ubuntu Install these packages (I used synaptic: "sudo synaptic") libncurses5 libncurses5-dev m4 bison gawk flex libstdc++6-4.4-dev g++-4.4 g++ gengetopt git (or git-core) gitk zlib1g-dev autoconf autopoint (or gettext) libtool shtool autogen mtd-utils intltool sharutils docbook-xsl-* libstdc++5 texinfo dos2unix (or tofrodos) xsltproc uboot-mkimage device-tree-compiler python 2.7 or above. qemu gperf liblzo2-dev uuid-dev build-essential lzma-dev liblzma-dev lzma binutils-dev patch cmake intltool libglib2.0-dev gtk-doc-tools If you are using Ubuntu amd64, you may need to install 32-bit packages listed below. libc6-i386 lib32stdc++6 lib32z1 libelf1:i386 libncurses5:i386 ia32-libs libc6-dev-i386 b. Fedora python 2.7 or above. sudo yum groupinstall "Development Tools" sudo yum install gettext-devel libxml2-devel mtd-utils-ubi ncurses-devel \ zlib-devel intltool sharutils docbook-dtds docbook-style-xsl \ uboot-tools dtc gengetopt qemu gperf cmake glib2-devel gtk-doc If you are using Fedora 19 or above, you need to install below packages. sudo yum groupinstall "C Development Tools and Libraries" If you are using Fedora x86_64, you may need to install 32-bit packages listed below. elfutils-libelf.i686 glibc.i686 libstdc++.i686 zlib.i686 If you are using Fedora 24+, you may need to install 32-bit packages listed below. ncurses-compat-libs.i686 2. prepare source to, ex, $HOME/asuswrt cd $HOME tar xvfz [tar file] 3. setup development system Broadcom SoC models =================== To install the tools: - copy the tools/brcm/ directory to /opt - add /opt/brcm/hndtools-mipsel-linux/bin to your path - add /opt/brcm/hndtools-mipsel-uclibc/bin to your path Broadcom HND SoC models ======================= Update your environment variables as following: - LD_LIBRARY_PATH=/opt/toolchains/crosstools-arm-gcc-5.3-linux-4.1-glibc-2.22-binutils-2.25/usr/lib - TOOLCHAIN_BASE=/opt/toolchains - PATH=/opt/toolchains/crosstools-arm-gcc-5.3-linux-4.1-glibc-2.22-binutils-2.25/usr/bin:/opt/toolchains/crosstools-aarch64-gcc-5.3-linux-4.1-glibc-2.22-binutils-2.25/usr/bin:/projects/hnd/tools/linux/hndtools-armeabi-2011.09/bin:$PATH Mediatek/Ralink SoC models ========================== To install the tools: - copy the tools/brcm/ directory to /opt - add /opt/brcm/hndtools-mipsel-linux/bin to your path - add /opt/brcm/hndtools-mipsel-uclibc/bin to your path If it is MT7621 or MT7628 chip: - extract tools/buildroot-gcc463_32bits.tar.bz2 to /opt - add /opt/buildroot-gcc463/bin to your path otherwise : - extract tools/buildroot-gcc342.tar.bz2 to /opt - add /opt/buildroot-gcc342/bin to your path For MT7621 Uboot: - extract mips-2012.03.tar.bz2 directory to /opt - add /opt/mips-2012.03/bin to your uboot path Qualcomm QCA9557/QCA953x/QCA956x MIPS SoC models ================================ To install the tools: Mesh Router: - extract tools/openwrt-gcc463.mips.mesh.tar.bz2 directory to /opt - add /opt/openwrt-gcc463.mips.mesh/bin to your path - If you want to build small utilities out of asuswrt box, add STAGING_DIR environment variable as below: export STAGING_DIR=/opt/openwrt-gcc463.mips.mesh Others: (For example, RT-AC55U, 4G-AC55U.) - extract tools/openwrt-gcc463.mips.tar.bz2 directory to /opt - add /opt/openwrt-gcc463.mips/bin to your path - If you want to build small utilities out of asuswrt box, add STAGING_DIR environment variable as below: export STAGING_DIR=/opt/openwrt-gcc463.mips Qualcomm IPQ806x/IPQ40xx ARM SoC models =============================== For example, BRT-AC828. To install the tools: - extract tools/openwrt-gcc463.arm.tar.bz2 directory to /opt - add /opt/openwrt-gcc463.arm/bin to your path - If you want to build small utilities out of asuswrt box, add STAGING_DIR environment variable as below: export STAGING_DIR=/opt/openwrt-gcc463.arm Note: Broadcom/Ralink(except 4708 series) platform use the same toolchain for user space program, so please set PATH to the same directory as above 4. build firmware. a. rt-n16 cd release/src-rt make rt-n16 b. rt-n56u cd release/src-ra make rt-n56u c. rt-n65u cd release/src-ra-3.0 make rt-n65u d. rt-n14u (/ rt-ac52u / rt-ac51u / rt-n11p / rt-n54u) cd release/src-ra-mt7620 make rt-n14u ( make rt-ac52u ) ( make rt-ac51u ) ( make rt-n11p ) ( make rt-n54u ) e. rt-ac56u (/ rt-ac68u / rt-n18uhp) cd release/src-rt-6.x.4708 make rt-ac56u ( make rt-ac68u ) ( make rt-n18uhp ) f. rt-ac55u (/ rt-ac55uhp ) cd release/src-qca make rt-ac55u ( make rt-ac55uhp ) g. brt-ac828 (/ rt-ac88q / rt-ad7200 ) cd release/src-qca-ipq8064 make brt-ac828 ( make rt-ad7200 ) h. rt-ac58u (/ rt-ac82u / map-ac1300 / map-ac2200 / vzw-ac1300 / rt-ac92u ) cd release/src-qca-dakota make rt-ac58u ( make rt-ac82u ) ( make map-ac1300 ) ( make map-ac2200 ) ( make vzw-ac1300 ) ( make rt-ac92u ) i. rt-ac85u (/ rt-ac85u / rt-ac65u / rp-ac87 ) cd release/src-ra-5010 make rt-ac85u ( make rt-ac65u ) ( make rp-ac87 ) j. rt-ac1200 (/ rt-n11p_b1 / rt-n10p_v3 / rt-ac1200gu / rt-ac51u+ / rt-ac53 ) cd release/src-ra-4300 make rt-ac1200 ( make rt-n11p_b1 ) ( make rt-n10p_v3 ) ( make rt-ac1200gu ) ( make rt-ac51u+ ) ( make rt-ac53 ) k. rp-ac68u (/ rp-ac53 / rp-ac55 ) cd release/src-rtk-819x make rp-ac68u ( make rp-ac53 ) ( make rp-ac55 )