Re: firmwareload fails for cortex-m7 on imx8mp

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

Hello Stefano,

On 19.11.24 11:40, Stefano Manni wrote:
> Il giorno mar 19 nov 2024 alle ore 10:03 Ahmad Fatoum
> <a.fatoum@pengutronix.de> ha scritto:
>>
>> I am surprised it works for you in Linux. To get it working with barebox:
>>
>>  1) run iomem and note where your malloc area begins. Set CONFIG_MALLOC_SIZE,
>>     so it starts after 0x90000000
>>
>>  2) Add the following to your DT:
>>
>> &{/reserved-memory} {
>>         rproc_reserved: rproc@80000000 {
>>                 reg = <0 0x80000000 0 0x10000000>;
>>         };
>> };
>>
>> &remoteproc_cm7 {
>>         memory-region = <&rproc_reserved>;
>> };
>>
>> Do you not have an equivalent memory-region definition in your kernel DT?
> 
> Yes, I have. Adding rproc_reserved to barebox as in kernel DT it fixes
> the issue.

Great. :)

>>
>>  3) I found some issues that I just Cc'd you on the fixes for. They may not be
>>     necessary for the simple hello-ddr.elf example though.
> 
> Do you need that I test them?

I have already tested that they don't break anything using the ELF
file you provided, so this is just a heads up if you run into
further problems with different firmware ELF files.

Cheers,
Ahmad

> 
> Thank you.
> Best,
> Stefano
> 


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