custom u-boot /dtb in ISAR

custom u-boot /dtb in ISAR

[Kurt Zou]

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Hi
Not sure if this is the right place to ask novice question like this.
I'm trying to build a wic-image for a new board with a customized u-boot.  
I created my own xxx_defconfig for the u-boot,  and customized dts file as 
well. I tried build some examples but they are all based on existing 
.defconfig file or dts in u-boot git repository. If I need to build this 
customized u-boot/dtb, what's the best approach?
Thanks

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Re: custom u-boot /dtb in ISAR

[Uladzimir Bely]

In the email from Wednesday, 7 December 2022 06:40:19 +03 user Kurt Zou wrote:
> Hi
> Not sure if this is the right place to ask novice question like this.
> I'm trying to build a wic-image for a new board with a customized u-boot.
> I created my own xxx_defconfig for the u-boot,  and customized dts file as
> well. I tried build some examples but they are all based on existing
> .defconfig file or dts in u-boot git repository. If I need to build this
> customized u-boot/dtb, what's the best approach?
> Thanks

Hello.

You could apply the patch that adds new defconfig for u-boot. Put it to the 
"files" near the recipe and add the patch to SRC_URI.

-- 
Uladzimir Bely

Re: custom u-boot /dtb in ISAR

[Henning Schild]

Some examples on custom u-boot can be found in some public layers.

i.e.
https://github.com/siemens/jailhouse-images/tree/master/recipes-bsp/u-boot
https://source.denx.de/Xenomai/xenomai-images/-/tree/master/
https://github.com/siemens/meta-iot2050/tree/master/recipes-bsp/u-boot

Also have a look at the variable DTB_FILES in the machine configs in
these layers.

These examples might help to find your own solution, maybe one layer
supports the target you have to deal with.

Anyhow when you are just getting started with Isar and have to do
bsp-work ... these layers are worth knowing.

Henning


Am Tue, 6 Dec 2022 19:40:19 -0800 (PST)
schrieb Kurt Zou <kurtzou@gmail.com>:

> Hi
> Not sure if this is the right place to ask novice question like this.
> I'm trying to build a wic-image for a new board with a customized
> u-boot. I created my own xxx_defconfig for the u-boot,  and
> customized dts file as well. I tried build some examples but they are
> all based on existing .defconfig file or dts in u-boot git
> repository. If I need to build this customized u-boot/dtb, what's the
> best approach? Thanks
>