Network OpenWRT Router Network Embedded

Build and Install OpenWRT on Banana Pi R64

Getting start to build and install OpenWRT on Banana Pi R64 by using macOS

Posted by ntsd on March 3, 2020

This tutorial is a getting start to build OpenWRT image and install on Banana Pi R64, This guide also works with the Banana Pi R2 but it will be a difference in some steps.

What is Banana Pi R64

The Banana Pi R64 is a router-based development board running with ARM Chipset MediaTek MT7622. So you can install operating systems which support to this ARM CPU including OpenWrt, Ubuntu, or many Linux distributions. It has many interfaces support such as on board Wifi/Bluetooth, 1GB Ethernet, USB 3.0, 40 GPIO, etc. Banana Pi R64 can add a Mini-PCI Express Modules and PoE module. And It also has a performance, resource, and interfaces good enough to be a high-end router.

Banana Pi R64 Specifications

  • MediaTek MT7622,1.35GHZ 64 bit dual-core ARM Cortex-A53
  • 1G DDR3 SDRAM
  • Mini PCIE interface support 4G module
  • Built-in 4x4n 802.11n/Bluetooth 5.0 system-on-chip
  • MTK7615 4x4ac wifi on board
  • Support 1 SATA interface
  • MicroSD slot supports up to 256GB expansion
  • 8G eMMC flash (option 16/32/64G)
  • 5 port 10/100/1000 Mb Ethernet port
  • 1 Port USB 3.0
  • Slow I/O:ADC, Audio Amplifier, GPIO, I2C, I2S, IR, PMIC I/F, PWM, RTC, SPI, UART
  • POE function support

Requirements

  • macOS (I used 10.15.3) *for Ubuntu, will easier to build the image
  • Banana Pi R64
  • MicroSD Card
  • MicroSD Card Reader
  • USB to UART

Preparation

Install USB to UART Driver

Just follow this link if you’re using FTDI

https://learn.sparkfun.com/tutorials/how-to-install-ftdi-drivers/all

here is for CP2102

https://www.silabs.com/products/development-tools/software/usb-to-uart-bridge-vcp-drivers

Terminal software for serial

you can use whatever serial console Putty, screen, minicom

for this tutorial I use screen

Download images

SD card image

https://drive.google.com/open?id=1Ap7lt-pjpG-pAOAEqpH13-SMOSkRkZI0

eMMC all-in-one single image

includes GPT, ATF, u-boot, and Linux kernel image

https://drive.google.com/open?id=1w8kO3klbPfdHK6lTI8Ub8sR_7ViISORM

eMMC preloader

https://drive.google.com/open?id=1Fy__GpNSWRcITEmzH4Z_jxnjrCS3BpQJ

Setup boot from eMMC

this step will allow you to build image to eMMC storage on the board instead sd card

Write SD card image into SD card

You need to boot via sd card first to write preloader and eMMC all-in-one single image

dd if=sdcardimage.img of=/dev/sdX

replace sdX with your drive

Run TFTP server

You can your system TFTP Server but for easy on and off the service so I use 3rd party TFTP Server.

TFTP server

you can download here http://ww2.unime.it/flr/tftpserver

MacOS build-in tftp (optional)

If you don’t like to install 3rd party software you can use system TFTP Service

sudo launchctl load -F /System/Library/LaunchDaemons/tftp.plist

sudo launchctl start com.apple.tftpd

cd /var/tftpboot touch # make initial tftp directory

Copy file to tftp folder

change mode your directory to allow other users to read and write files

chmod 777 /private/tftpboot

copy the binary file into TFTP root directory

copy the binary file into TFTP root directory

Connect to board by UART

use serial 115200 baud for Bananapi r64

sudo screen /dev/cu.usbserial-A50285BI 115200

replace cu.usbserial-A50285BI with your serial driver

Set u-boot env

setenv ipaddr 192.168.1.126 # your bpi ip address
setenv serverip 192.168.1.1 # your tfto server
setenv netmask 255.255.255.0
saveenv

check u-boot env

printenv

return to u-boot menu

bootmenu

Write eMMC image to flash via TFTP

Put Ethernet to WLAN port for connect to the router

make sure your TFTP server in the same network with your bpi board

Install eMMC flash image to flash

in u-boot menu choose “b. System Load flash image then write to Flash via TFTP”

b. System Load flash image then write to Flash via TFTP

Set TFTP server IP and flash image file name

Set TFTP server ip and flash image file name

Install preloader to flash

back to U-Boot menu choose “7. System Load Preloader then write to Flash via TFTP”

7. System Load Preloader then write to Flash via TFTP

Set TFTP server IP address and preloader file name

Set TFTP server ip and preloader file name

Remove sd card and power-off The Banana pi, Remove SD card, and Power on.

Now you’ll get U-BOOT installed on eMMC storage

U-BOOT install on eMMC on board storage

Build your OpenWRT image

Preparation to build OpenWRT image

follow the link for more information https://openwrt.org/docs/guide-developer/buildroot.exigence.macosx

Setup MacOSX as an OpenWrt build environment

Install these package by Homebrew

brew install coreutils diffutils findutils gawk gnu-getopt gnu-tar grep wget quilt xz

# Link gnu-getopt to local gnugetopt
ln -s `brew --prefix gnu-getopt`/bin/getopt `brew --prefix`/bin/gnugetopt

add gnu-getopt to your path

export PATH="/usr/local/opt/gnu-getopt/bin:$PATH"

Create case-insensitive filesystem

OS X by default comes with a case-insensitive filesystem. OpenWrt won’t build on that. As a workaround, create a (Sparse) case-sensitive disk-image that you then mount in the finder and use as build directory

hdiutil create -size 20g -type SPARSE -fs "Case-sensitive HFS+" -volname OpenWrt OpenWrt.sparseimage

# mount the image
hdiutil attach OpenWrt.sparseimage

change directory to /Volumes/OpenWrt

cd /Volumes/OpenWrt

Build OpenWRT Image for MT7622

Clone OpenWRT project

git clone https://github.com/openwrt/openwrt.git

Set parametres

Target System: MediaTek Ralink ARM

Subtarget: MT7622

Target Profile: Banana Pi R64

cd openwrt

./scripts/feeds update -a
./scripts/feeds install -a

make menuconfig

Set config and include built-in dependency that you want (Luci is not included by default)

then save to .config

Build OpenWRT image

# for 10.15 need set deploy target it to 10.14
MACOSX_DEPLOYMENT_TARGET=10.14

# Start make
# vadd v1 mean verbose Level 1 (warnings/errors), level 99 (stdout+stderr)
# add -j4 mean use quard core
make -j4 V=1

Kernel image file will be at ./bin/targets/mediatek/mt7622/openwrt-mediatek-mt7622-bpi_bananapi-r64-initramfs-kernel.bin

Install OpenWRT Image to Bananapi via TFTP

Copy the kernel image to TFTP folder

cp ./bin/targets/mediatek/mt7622/openwrt-mediatek-mt7622-bpi_bananapi-r64-initramfs-kernel.bin /private/tftpboot/

Enter to the U-Boot menu

Install kernel image from TFTP

Install kernel image from TFTP

Finally, I got The OpenWRT image installed

OpenWRT installed

References