/boot/uEnv.txt and its effect on device tree

[Mortaza Asaadi]

Hi,
I'm wondering how /boot/uEnv.txt can effect device tree at boot time?
does the boot-loader change the device tree according to the uEnv.txt?
or it just pass them through to kernel and kernel make the proper changes?How?

[Robert Nelson]

On Mon, May 16, 2016 at 11:28 AM, Mortaza Asaadi <mortazam...@gmail.com> wrote:

Hi,
I'm wondering how /boot/uEnv.txt can effect device tree at boot time?
does the boot-loader change the device tree according to the uEnv.txt?

dtb= 

Tell u-boot which *.dtb to load when booting.. (thus override the u-boot eeprom lookup table)

cape_enable=

cmdline=

this get's added to the kernel boot cmdline, to make overlay changes on bootup..

Regards,

--

Robert Nelson
https://rcn-ee.com/