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Re: [Qemu-ppc] [RFC PATCH 09/12] ppc440: Add emulation of plb-pcix contr

From: luigi burdo
Subject: Re: [Qemu-ppc] [RFC PATCH 09/12] ppc440: Add emulation of plb-pcix controller found in some 440 SoCs
Date: Fri, 18 Aug 2017 19:43:35 +0000

hi Balaton,
> I know about this and if you read the cover message (RFC PATCH 00/12) I link 
> to a fixed version of that U-Boot firmware (rebuilt from source with the 
> mentioned patches) which works with this emulation. (The original one from 
> the updater also starts but cannot boot due to some problems which are fixed 
> by these patches in my image. This is described in the cover message.) With 
> that fixed firmware image it should be possible to at least try booting 
> AmigaOS on the emulation and get some logs. I'd be surprised if it also 
> worked at this point but I could not try it as it needs an appropriate 
> AmigaOS version that runs on the Sam460. It should produce some logs though 
> with -serial stdio which may help finding what is missing.

i have sam460 amigaos cdrom iso as my backup and can test it inside qemu. 
sharing the logs if you needed.

> I think it would not be possible to use the U-Boot in QEMU now as that is for 
> e500 CPU but this is not needed either. See above, we are aiming to emulate 
> enough of the board that it can run the original firmware which should be 
> able to boot these Amiga like OSes and normal Linux images used on the 
> Sam460ex. This already works but things fail after or during boot currently. 
> This is what needs to be debugged. So we'd need someone who has a Sam460 (ex 
> or cr) board and can test on that to get logs from OSes on real hardware for 
> comparison.

 about real hardware no problem i will ask inside amigan community if someone 
have the opportunity to share the serial debug of sam 460 runinng amigaos.

can i ask you something ?
why you dont try to integrate in qemu the pegasos 2 or the efika machine. i 
have the feeling that probably it can be more simple because more old machine 
and components.


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