OpenWRT

Environment Setup

Ubuntu

macOS

WSL2

Build

• [OpenWrt Wiki] Build system usage

Default config for Bananapi BPi-R64

• make defconfig
• make menuconfig
  • Target System -> MediaTek Ralink ARM
  • Subtarget -> MT7622
  • Target Profile -> Bananapi BPi-R64
  • Save -> Ok -> Exit
• make -j $(nproc) kernel_menuconfig
  • Save -> Ok -> Exit
• make -j $(nproc) download
• make -j $(($(nproc)+1)) V=s
• Image Location
  • <openwrt>/bin/targets/mediatek/mt7622/openwrt-mediatek-mt7622-bananapi_bpi-r64-sdcard.img.gz

Build the OpenWrt Image Builder

• make menuconfig
  • [*] Build the OpenWrt Image Builder
  • [ ] Include package repositories
  • Save -> Ok -> Exit
• make -j $(($(nproc)+1)) V=s
• Image Builder Location
  • <openwrt>/bin/targets/mediatek/mt7622/openwrt-imagebuilder-mediatek-mt7622.Linux-x86_64.tar.xz

Issue

Build failed with externel toolchain

• https://blog.csdn.net/weixin_38387929/article/details/117020343
• https://insidelinuxdev.net/article/a098rr.html
• https://patchwork.ozlabs.org/project/openwrt/patch/[e-mail]/
• https://github.com/openwrt/openwrt/commit/2555ffb4536e2727465e9a0d426ad3c4f1ef003a
• https://stackoverflow.com/questions/48777554/what-is-the-difference-between-ar-nm-and-gcc-ar-gcc-nm

BPI-R3

• https://wiki.banana-pi.org/Banana_Pi_BPI-R3
• https://github.com/BPI-SINOVOIP/BPI-R3-OPENWRT-V21.02.3
• https://forum.banana-pi.org/t/banana-pi-bpi-r3-openwrt-image/13236/4
• https://github.com/openwrt/openwrt/commit/a96382c1bb204698cd43e82193877c10e4b63027#diff-f54843b2d13758fa12550a0a284276695bc0b66919fc7a192c025f2db196b70f
• https://forum.banana-pi.org/t/bpi-r3-hw-issues/14027
• https://github.com/openwrt/mt76
• Disable CONFIG_GDB
• https://git01.mediatek.com/plugins/gitiles/?format=HTML

Reference

• https://www.cnblogs.com/xiaomingjun/p/16112836.html