Until now, for dualboot systems, all boot variables were calculated on each boot depending on the value of the
'active_system'. These variables are used to boot the device but were not saved, which could lead to a missmatch
between their value in the environment and their required values to correctly boot the system. This commit
simplifies a bit the variables calculation and adds a block to synchronize their value in the environment.
Signed-off-by: David Escalona <david.escalona@digi.com>
The 'bootcount' value is now incremented and stored in the system on every boot and
not only then the 'upgrade_available' flag is set. Also, ensure the value is cleared
when the 'altboot' script is executed by running the new U-Boot command 'bootcount reset'.
https://onedigi.atlassian.net/browse/DEL-8506
Signed-off-by: David Escalona <david.escalona@digi.com>
Number of bootup logos is now configured using fbcon=logo-count parameter,
so use it instead of our deprecated custom code in the kernel.
For backwards compatibility, we add this parameter in the u-boot boot
script for all platforms but the ccimx93, where this is directly handled
by u-boot (v2022.04).
Signed-off-by: Javier Viguera <javier.viguera@digi.com>
U-Boot has embedded support to handle bootcount tries.
When the limit of tries is reached, U-Boot runs the script
in `altbootcmd` rather than the usual `bootcmd`.
This other script resides on meta-digi-dualboot layer.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Signed-off-by: Francisco Gil <francisco.gilmartinez@digi.com>
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>
The boot script appends values to certain variables such as
$extra_bootargs and $overlays.
If the final instruction of the boot script (dboot command)
fails, these variables contain the new values, plus the original
one. Since the user recovers the prompt, he may do a 'saveenv'
to save the environment, and the modified variables will be
saved, only to be enlarged again on the next boot.
This can lead to repeated strings on such variables.
Save the original value and restore it in case of failure on
the dboot command.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Follow the syntax:
_ov_<som|board>_<functionality>[_<hardware>].dts
where:
_ov_ identifies the file as an overlay.
som|board identifies whether the overlay applies to the SOM
or to the carrier board.
functionality identifies the function of the overlay.
hardware identifies the hardware to which the overlay
applies.
Signed-off-by: Hector Palacios <hector.palacios@digi.com>
With the previous solution we would need to generate
multiple overlays for each soc_type, so if we have a
new soc type (for example the solo), we would need
to generate 3 different overlays.
Signed-off-by: Francisco Gil Martinez <francisco.gilmartinez@digi.com>
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>
David Escalona
Javier Viguera
Hector Palacios
Francisco Gil
Arturo Buzarra
Gabriel Valcazar