Buildroot for Boundary Devices platforms:
https://boundarydevices.com/product-category/popular-sbc-and-som-modules/
Here is the list of targeted platforms per defconfig:
- nitrogen6x_defconfig
- BD-SL-i.MX6 (SABRE-Lite)
- Nitrogen6X
- Nitrogen6_Lite
- Nitrogen6_MAX
- Nitrogen6_VM
- Nitrogen6_SOM
- Nitrogen6_SOMv2
- nitrogen6sx_defconfig
- Nitrogen6_SoloX
- nitrogen7_defconfig
- Nitrogen7
To install, simply copy the image to a uSD card:
$ sudo dd if=output/images/sdcard.img of=/dev/sdX
Where 'sdX' is the device node of the uSD partition.
To upgrade u-boot, cancel autoboot and type:
> run upgradeu
dac9e45b5f