When DualBoot mechanism is enabled and an update is pending,
the boot script needs to change certain variables and save the
environment.
The regular boot script already changes a number of variables,
such as 'extra_bootargs' and 'overlays' by appending strings to
the already existing values. Saving the envionment may make these
grow endlessly with each iteration of the boot script.
For this reason, move the DualBoot check as the first thing in
the script, save the environment if needed, and then continue
with the normal flow, that changes variables before booting
but doesn't save them.
On certain scripts, this allows us to get rid of some instructions
for resetting the overlays variable.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
The support for dualboot was integrated on meta-digi-dualboot layer, but it
really depends only on environment variable 'dualboot' so we'd better
integrate the support on the scripts in meta-digi, to avoid synchonization
problems between both layers.
This also allows to be able to easily enable dualboot in U-Boot with the
variable, without needing to update the script on the linux partition.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
On these boot scripts, this variable is not used, so we can remove it.
Besides, it's generated by U-Boot code.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
This overlay added cooling devices for all quad cores.
On the latest BSP, the SoC device tree include contains all four
cooling devices and the newest U-Boot is able to delete the nodes
for non-existing cores, so there's no need for this overlay
anymore.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Hector Palacios
Arturo Buzarra