With the device tree overlays mechanism in place, the bootscript
doesn't need to set the fdt_file variable. Instead, it will use
the value it has (which can be changed by the user) and it will
simply update the 'overlays' variable with the device tree
overlays that apply basing on the hardware capabilities found
on the HWID, SOM version, and carrier board version.
This allows a user to override the default fdt_file to point
to his custom device tree, but still make use of the boot script
for hardware-detected overlays.
Without the need to set the base filename, the boot script is the
same for any carrier board of the ccimx8x SOM, so this commit
moves it to a common folder.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Parse the hardware version from the HWID and load the overlay if and only if
the revision is "1". Also, update the board's device tree list accordingly.
https://jira.digi.com/browse/DEL-7070
Signed-off-by: Gabriel Valcazar <gabriel.valcazar@digi.com>
Instead of having two separate device trees for the non-wireless and wireless
variants of the ccimx8mn, use the non-wireless .dtb as a base and apply the
overlays in the bootscript depending on the variant's capabilities.
Also, update the board's device tree list accordingly.
https://jira.digi.com/browse/DEL-2609
Signed-off-by: Gabriel Valcazar <gabriel.valcazar@digi.com>
Hector Palacios
Gabriel Valcazar
Arturo Buzarra