DART-6UL Yocto Jethro Build U-Boot out of tree

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DART-6UL - Yocto Jethro - Build U-Boot from source code

1 Toolchain installation for out of Yocto builds

Build the toolchain by:

$ cd ~/var-mx6ul-mx7-yocto-jethro
$ MACHINE=imx6ul-var-dart DISTRO=fsl-imx-x11 source var-setup-release.sh -b build_x11
$ bitbake meta-ide-support
$ bitbake meta-toolchain

The output will be located at tmp/deploy/sdk/. On a 64 bit Ubuntu you will get:

tmp/deploy/sdk/fsl-imx-x11-glibc-x86_64-meta-toolchain-cortexa7hf-vfp-neon-toolchain-4.1.15-1.2.0.sh

Install the tools by running:

$ tmp/deploy/sdk/fsl-imx-x11-glibc-x86_64-meta-toolchain-cortexa7hf-vfp-neon-toolchain-4.1.15-1.2.0.sh

Reply to all defaults 'y'
The toolchain name depend on your build machine and may change.

2 Build U-Boot out of Yocto tree

Obtain sources:

$ cd ~/var-mx6ul-mx7-yocto-jethro
$ git clone https://github.com/varigit/uboot-imx.git -b imx_v2015.10_dart_6ul_var1
  • follow above procedure for installing the toolchain

Build U-Boot:

$ source /opt/fsl-imx-x11/4.1.15-1.2.0/environment-setup-cortexa7hf-vfp-neon-poky-linux-gnueabi
$ cd ~/var-mx6ul-mx7-yocto-jethro/uboot-imx/
$ make mrproper

Choose build for SD card or NAND flash:
$ make mx6ul_var_dart_mmc_defconfig
or
$ make mx6ul_var_dart_nand_defconfig

$ make -j4

Flash U-Boot to the SD card:

$ sudo dd if=SPL of=/dev/sdX bs=1K seek=1; sync
$ sudo dd if=u-boot.img of=/dev/sdX bs=1K seek=69; sync
(Replace /dev/sdX with the correct device)

In case of UBI copy it to the SD card (assuming you are using our recovery SD card):

$ sudo cp SPL /media/rootfs/opt/images/Yocto/SPL-nand
$ sudo cp u-boot.img /media/rootfs/opt/images/Yocto/u-boot-nand-2015.04-r0.img
or (depend on your build):
$ sudo cp SPL /media/rootfs/opt/images/Yocto/SPL-sd
$ sudo cp u-boot.img /media/rootfs/opt/images/Yocto/u-boot-sd-2015.04-r0.img


And eject the SD card gracefully from host machine.

3 Update your U-Boot out of Yocto tree

$ git fetch origin
$ git pull