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Yocto Build U-Boot from source code

Introduction

This guide walks through the process for manually building and installing the U-Boot images from source. It is derived from TI's General Information guide

Fetch source code and install dependencies

This section describes the one time process to install the toolchains and fetch the necessary source code for building U-Boot.

Install Toolchains to home directory

$ cd ~
$ wget  && \
   tar -Jxvf  -C $HOME && \
   wget  && \
   tar -Jxvf  -C $HOME

Fetch Source Code

Setup a working directory

$ mkdir ~/-u-boot

Fetch the U-Boot source:

$ cd ~/-u-boot
$ git clone  -b

Fetch the core-secdev-k3 Security Dev Tool:

$ cd ~/-u-boot
$ git clone  -b  
$ cd  && \
  git checkout  && \
  cd ../

Fetch ti-k3-image-gen:

$ cd ~/-u-boot
$ git clone  -b  
$ cd  && \
  git checkout  && \
  cd ../

Fetch ti-linux-firmware:

$ cd ~/-u-boot
$ git clone  -b  
$ cd  && \
  git checkout  && \
  cd ../

Fetch arm-trusted-firmawre:

$ cd ~/-u-boot
$ git clone  -b  
$ cd  && \
  git checkout  && \
  cd ../

Fetch optee-os:

$ cd ~/-u-boot
$ git clone  -b  
$ cd  && \
  git checkout  && \
  cd ../

Build U-Boot out of Yocto tree

After fetching the source code and installing dependencies, you may return to ~/-u-boot anytime and follow these steps to build U-Boot:

Setup the environment:

$ export PATH=$HOME//bin:$PATH && \
  export PATH=$HOME//bin:$PATH && \
  export export TI_SECURE_DEV_PKG=~/-u-boot/ && \
  export UBOOT_DIR=~/-u-boot/  && \
  export K3IG_DIR=~/-u-boot/ && \
  export SYSFW_DIR=~/-u-boot//ti-sysfw && \
  export DMFW_DIR=~/-u-boot//ti-dm/am62xx && \
  export TFA_DIR=~/-u-boot/ && \
  export OPTEE_DIR=~/-u-boot/

Build for GP SoC:

R5 Images

Build u-boot-spl.bin for tiboot3.bin. Saved in $UBOOT_DIR/out/r5:

$ cd ~/-u-boot/
$ make -j$(nproc) ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf-  O=$UBOOT_DIR/out/r5
$ make -j$(nproc) ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- O=$UBOOT_DIR/out/r5

Build tiboot3-am62x-gp-evm.bin. Saved in $K3IG_DIR. Requires u-boot-spl.bin and ti-fs-firmware-am62x-gp.bin.

$ cd ~/-u-boot/
$ cd $K3IG_DIR
$ make -j$(nproc) ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- SOC=am62x SOC_TYPE=gp SBL=$UBOOT_DIR/out/r5/spl/u-boot-spl.bin SYSFW_DIR=$SYSFW_DIR

A53 Images

Build tispl.bin and u-boot.img. Saved in $UBOOT_DIR/out/a53. Requires bl31.bin, tee-pager_v2.bin, and ipc_echo_testb_mcu1_0_release_strip.xer5f.

$ make -j$(nproc) ARCH=arm CROSS_COMPILE=aarch64-none-linux-gnu- U-BOOT_A53_DEFCONFIG O=$UBOOT_DIR/out/a53
$ make -j$(nproc) ARCH=arm CROSS_COMPILE=aarch64-none-linux-gnu- ATF=$TFA_DIR/build/k3/lite/release/bl31.bin TEE=$OPTEE_DIR/out/arm-plat-k3/core/tee-pager_v2.bin DM=$DMFW_DIR/ipc_echo_testb_mcu1_0_release_strip.xer5f O=$UBOOT_DIR/out/a53

Yocto Build U-Boot TI

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