how to update device tree on runtime...

hi

i would like to update dtb file(tegra186-quill-p3310-1000-c03-00-base.dtb).

i know that jetson tx1 is change /boot/XXX.dtb so i tried no effect.

i found dtb patition /dev/mmcblk0p4, /dev/mmcblk0p15

so i tried dd command.

/dev/mmcblk0p4 is signed…

where is signed tegra186-quill-p3310-1000-c03-00-base.dtb?

howe to update dtb simple…

hello walterkim,

here’s external wiki page talking about how to update TX2 device tree at run time.
http://developer.ridgerun.com/wiki/index.php?title=Edit_device_tree_at_run_time

please have a try, thanks

i think Tx1 is very usefull

Tx2 is not usefull. is it right?

Tx2 not use /boot/xxx.dtb file.

Hi walterkim,

Adding ‘FDT’ entry into the /boot/extlinux/extlinux.conf, we can use /boot/xxx.dtb file in TX2.

FDT /boot/tegra186-quill-p3310-1000-c03-00-base.dtb

Regards,
Rejeesh

Thank you so much. Rejeesh