Build Mainline u-boot - bl33:
=============================

Main Wiki Page : https://gitlab.baylibre.com/baylibre/amlogic/atv/u-boot/wikis/home

Download the toolchain : gcc-linaro-7.2.1-2017.11-x86_64_aarch64-elf
        http://releases.linaro.org/components/toolchain/binaries/7.2-2017.11/aarch64-elf/gcc-linaro-7.2.1-2017.11-x86_64_aarch64-elf.tar.xz

Download U-Boot Source Code From :
        https://gitlab.baylibre.com/baylibre/amlogic/atv/u-boot.git

actual tag :  u-boot/v2021.07/integ-20210712
dev branch :  u-boot/v2021.07/integ

link to U-Boot aosp release wiki page :
https://gitlab.baylibre.com/baylibre/amlogic/atv/u-boot/wikis/U-Boot-for-Yukawa-Release

Compile:

        export PATH=<path-to-toolchain>/gcc-linaro-7.2.1-2017.11-x86_64_aarch64-elf/bin:$PATH
        export CROSS_COMPILE=aarch64-elf-
        git clone https://gitlab.baylibre.com/baylibre/amlogic/atv/u-boot.git
        cd u-boot
        git checkout u-boot/v2021.07/integ-20210712
        make [sei510|sei610|sei610_ab|khadas-vim3_android|khadas-vim3_android_ab|khadas-vim3l_android|khadas-vim3l_android_ab]_defconfig
        make

Generate fip binary
===================

use tarball in fip_packages folder and untar it

- For sei510 (yukawa_sei510):
        tar -xaf fip-collect-g12a-g12a_u200_v1-amlogic-dev_9.2.1811_21-20191203-113239.tar.gz

- For sei610 (yukawa):
        tar -xaf fip-collect-g12a-sm1_ac214_v1-amlogic-dev_9.2.1811_21-20191204-161855.tar.gz

- For VIM3L (yukawa):
        tar -xaf fip-collect-g12a-kvim3l-khadas-vims-pie-20210111-211224.tar.gz

- For VIM3 (yukawa):
        tar -xaf fip-collect-g12b-kvim3-khadas-vims-pie-20210111-211833.tar.gz

Then launch script for scripts folder:

        ./generate-bins-new.sh <fip-collect-directory> <target-bl33-binary>

flash result with:
        fastboot flash bootloader uboot-bins/u-boot.bin
        fastboot erase bootenv
        fastboot reboot bootloader

after reboot if partitions table need to be updated:
        fastboot oem format

More informations to update and flash bootloader on Yukawa:
https://gitlab.baylibre.com/baylibre/amlogic/atv/u-boot/wikis/U-Boot-for-Yukawa


Generate new fip_packages for Khadas VIM3/3L
=============================================

- Launch collect script for script foler :
        ./collect-khadas_binaries-git-refboard.sh <khadas-uboot-branch> <soc> <refboard>

branch to use for VIM3/3L : khadas-vims-pie
soc VIM3 : g12b
    VIM3L: sm1

refboard  VIM3 : kvim3
          VIM3L: kvim3l

- Generate tarball :
        Example:
                tar -czf fip-collect-g12b-kvim3-khadas-vims-pie-20210111-211833.tar.gz fip-collect-g12b-kvim3-khadas-vims-pie-20210111-211833

        Adapt folder name with folder generate by collect script.

- to generate fip bin cf "Generate fip binary"