Setting up boot chain ACPI on ARM with STM32MPU

[Ba Gia Bao Phan]

>
> Sort-of...the refactoring to allow ACPI tables on ARM is completed,
> but I don't think any U-Boot board uses this.

Hello, could you tell me more details about this topic? Which platform ARM
are ACPI tables enabled for?

Le mer. 29 nov. 2023 à 20:28, Simon Glass <sjg at chromium.org> a écrit :

> +Heinrich Schuchardt
>
> Hi,
>
> On Wed, 29 Nov 2023 at 08:29, Ba Gia Bao Phan
> <phanbagiabao2001 at gmail.com> wrote:
> >
> > Hello everyone,
> >
> > I am a trainee at STMicroelectronics France. I am working on a project
> "Setting up a boot chain ACPI" for STM32MPU, which is based on ARM Cortex-A
> . The objective of my project is to add a way of booting (with ACPI)
> besides Device Tree available on STM32MPU.
> >
> > I found that ACPI was enabled on some x86 platforms but I don't know
> whether it was set up on ARM or not. I found a PATCH that discussed
> Enabling ACPI booting on ARM with Raspberry Pi 4 but I don't know if it
> functioned or not. Did anyone here succeed in setting up ACPI on ARM by
> U-boot?
>
> Sort-of...the refactoring to allow ACPI tables on ARM is completed,
> but I don't think any U-Boot board uses this.
>
> >
> > What are the differences between x86 and ARM platforms when enabling
> ACPI? The architecture of my board STM32PMU is ARM so can I apply the
> technique used on platform x86 for my board?
>
> Firstly I wonder why you want ACPI?
>
> Secondly, if you have the tables somewhere it should be easy enough to
> build them, building on the series you pointed to. Heinrich is
> interested in this, I think. I can help with advice. I have been
> toying with going back to that rpi series but have not done so yet.
>
> Regards,
> Simon
>


-- 
PHAN Ba Gia Bao
Etudiant en 5A STI - INSA Centre Val de Loire