DESK-MX6UL-L/Development/Building U-Boot

History
Version	Issue Date	Notes
1.0.1	Apr 2021	First DESK release
2.0.0	Mar 2022	DESK 3.0.0 release
3.0.0	Apr 2023	DESK 4.0.0 release
3.0.1	Apr 2023	DESK 4.0.1 release

Building U-Boot

Quick reference

Repository Information

URL	git@git.dave.eu:desk-mx-l/u-boot-imx.git
stable branch	desk-mx6ul-l-4.x.x
stable tag	desk-mx6ul-l-4.0.0

U-Boot defconfigs

Platform	SOM ConfigID	CB ConfigID	defconfig
SDV04	-	0x0000003a	mx6uldesk_axelulite_defconfig
SBC Lynx	0x00000013	0x0000002f	mx6uldesk_lynx_defconfig

Instructions

It is assumed that the development environment has been set up properly as described here.

• start the Linux development VM and login into the system
• open a terminal window and cd into U-Boot source code

cd ~/desk-mx-l/u-boot

• in case of needs you can update your local repository with the following git command

git pull

• configure the build environment

source ~/desk-mx-l/desk-mx6ul-l-4.0.1_env.sh

• enter the source tree directory and run the following commands:

for the AXEL Ulite EVK

make mx6uldesk_axelulite_defconfig
make

for the SBC platform:

make mx6uldesk_lynx_defconfig
make

NOTE: this is the default configuration suitable for latest <SOM> target.

The former command selects the default DESK-MX6UL-L configuration suitable for latest <SOM> targets (for additional defconfig please refer to the U-Boot defconfigs table above), while the latter builds the U-Boot binary image files (SPL and u-boot.img).

Binary files can be copied to the tftp root directory /tftpboot/desk-mx-l/ with the following command:

cp SPL u-boot.img /tftpboot/desk-mx-l/

Please refer to this page for more information on how to update the bootloader on your board.

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