Re: Linux driver VME-Bridge tsi-148

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On 14/01/13 19:21, ternaryd wrote:
> On Mon, 14 Jan 2013 17:17:04 +0000
> Martyn Welch <martyn.welch@xxxxxx> wrote:
> 
>> (Please keep this on list)
> 
> Sorry, I missed the right reply-button.
> 
>> It will require the core and at least one bridge to be registered
>> with it to be usable.
> 
> This, and
> 
>> It's a PCI device, so should get detected at boot during the PCI
>> scan. However the entries in the device tree for the PCI bus would
>> need to exist and be correct.
> 
> this, if nothing else, make me think, that I will need to get the
> device tree right before all.

Yup, without that, it's going to be a bit problematic.

> Could you post an example entry for such
> a pci device in the device tree, which I could try to adjust? I do have
> a some information, like this line (from another OS)
> 
>         pci 90000000 ffff0000 0000ffff 01 02
> 

There's an example in
Documentation/devicetree/bindings/pci/83xx-512x-pci.txt, there are also
a number of device trees in arch/powerpc/boot/dts which will probably be
helpful, depending on which chip you are using. I'd suggest that finding
one as close as possible to your system will give you the best start.

We are rapidly becoming off-topic for this mailing list. You may find
that the guys on the Linux PowerPC development mailing list can be of
more assistance:

https://lists.ozlabs.org/listinfo/linuxppc-dev


> and maybe some details from lspci. Maybe I can do with a few educated
> guesses. After this, I could try to see, if vme_user does enough for my
> purposes, or if I need to find my way through the vme-api.
> 
> Thanks,
> 

No problem, hope this helps,

Martyn
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