Re: [9fans] raspberry pi 4 arm64 test image

[Charles Forsyth <charles.forsyth@gmail.com>]

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Couldn't you even manage to try a few wines?

On Thu, Aug 22, 2019 at 9:59 AM Steve Simon <steve@quintile.net> wrote:

> hi all
>
> just to say i am very excited abou the pi4 port but am on holiday in
> France at the moment so i cannot even help with testing.
>
> -Steve
>
>
> On 22 Aug 2019, at 9:07 am, Richard Miller <9fans@hamnavoe.com> wrote:
>
> >> oh dear. i dont even know the expected physical memory map...
> >> i guess that ram is continuous block at [0-0xfc000000). but
> >> some memory might be reserved...
> >
> > No, the framebuffer is always reserved at the top of the
> > first 1GB, so on 2GB and 4GB units there are two separate
> > regions.
> >
> >> - atags
> >> - device tree /memory/reg property
> >> - firmware property request (getramsize() in vcore.c)
> >>
> >> for me getramsize() returns zero for both base and limit so its
> >> completely useless.
> >
> > That's strange, getramsize works on my 2GB pi4:
> >    getramsize 0 1046478848
> >
> > The same values are in atags (you need 'device_tree=' in config.txt
> > to make the firmware pass atags instead of devicetree).
> >
>
>
>

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