Using Novaboot with Raspberry Pi

This document describes how to use Novaboot with Raspberry Pi 4B (RPi).

⚠️ This is work in progress.

First, you need to setup the hardware – connect a serial line and remote reset. A possible setup can be seen in the figure below.

You need to enable serial port in the bootloader (U-Boot).

Update rpi-eeprom to the newest version

Run rpi-eeprom-config --edit.

Change BOOT_UART to 1.

Connect USB-TTL-UART converter to the connector pins 8, 9, 10 (TXD0, GND, RXD0).

Put U-Boot bootloader to the SD card

Compile U-Boot:

  make rpi_arm64_defconfig
  make CROSS_COMPILE=aarch64-unknown-linux-gnu- -j8
  cp u-boot.bin ...

config.txt - add to [pi4] section:

  kernel=u-boot.bin
  arm_64bit=1
  enable_uart=1

Remote reset (and power on/off) can be controlled with an USB-controlled relay connected to pins RUN and GLOBAL_EN.