U-boot for KITRA710C and KITRAGTI

1. Introduction

This is a fork of 'u-boot-artik', adding support for Kitra710C and KitraGTI. For bootloader is the same for both board, and fix the following issues with standard artik bootloader:

• Random eth mac address in userspace
• in-boot ethernet support

2. Build guide

2.1 Install cross compiler

• You'll need an arm64 cross compiler

sudo apt-get install gcc-aarch64-linux-gnu device-tree-compiler

If you can't install the above toolchain, you can use linaro toolchain.

wget https://releases.linaro.org/components/toolchain/binaries/5.4-2017.05/aarch64-linux-gnu/gcc-linaro-5.4.1-2017.05-x86_64_aarch64-linux-gnu.tar.xz
tar xf gcc-linaro-5.4.1-2017.05-x86_64_aarch64-linux-gnu.tar.xz
export PATH=~/gcc-linaro-5.4.1-2017.05-x86_64_aarch64-linux-gnu/bin:$PATH

2.2 Build u-boot

make ARCH=arm kitragti_kitra710C_defconfig
./mk_uboot.sh

3. Update Guide

You can update the u-boot through fastboot or micro sd card(ext4 partition)

3.1 Fastboot

You should prepare a micro USB cable to connect between the board and host PC

• Install android-tools-fastboot

sudo apt-get install android-tools-fastboot
wget -S -O - http://source.android.com/source/51-android.rules | sed "s/<username>/$USER/" | sudo tee >/dev/null /etc/udev/rules.d/51-android.rules; sudo udevadm control --reload-rules

• Insert the USB cable(not MicroUSB Cable) into your board. Enter u-boot shell mode during boot countdown:

Net:   No ethernet found.
Hit any key to stop autoboot:  0
ARTIK710 #
ARTIK710 #
ARTIK710 # fastboot 0

• You'll need to upload the partmap_emmc.txt prior than uploading the binaries. It can be downloaded from boot-firmwares-artik710. On your Host PC(Linux), flash the u-boot using below command

sudo fastboot flash partmap partmap_emmc.txt
sudo fastboot flash fip-nonsecure fip-nonsecure.img
sudo fastboot flash env params.bin
sudo fastboot reboot

3.2 microSD Card

Prepare a micro SD card and format to ext4 file system.

sudo mkfs.ext4 /dev/sd[X]1
sudo mount /dev/sd[X]1 /mnt

• Copy compiled binaries(fip-nonsecure.img, params.bin) into a micro sd card.

sudo cp fip-nonsecure.img params.bin partmap_emmc.txt /mnt
sudo umount /mnt

• Insert the microSD card into your board and enter u-boot shell during boot countdown

sd_recovery mmc 1:1 48000000 partmap_emmc.txt