Report: FreeBSD on Rpi4 8 GB model

[Kyle Evans]

On Sat, Jun 6, 2020 at 2:13 PM Klaus Küchemann via freebsd-arm
<freebsd-arm at freebsd.org> wrote:
>
>
>
> > Am 06.06.2020 um 20:15 schrieb Robert Crowston via freebsd-arm <freebsd-arm at freebsd.org>:
> >
> > …...
> > Edit board/raspberrypi/rpi/Kconfig, set RPI_EFI_NR_SPIN_PAGES to a larger number (I picked 10, probably too big, but it was easier than doing the arithmetic).
> >
> > ……
> >
>
> You mean that https://reviews.freebsd.org/D24085  rpi4_fragment has to set SPIN_PAGES from 2 to 10 ?
> This could be done in sysutils/u-boot-rpi4 , perhaps with something like  an  #ifdef RPI4/8GB“ for the first try .
>

No, SPIN_PAGES=2 is fine; the default in upstream is 1 because they
don't need any more, so he would've needed to manually bump it to 2.

You should be able to just add CONFIG_NR_DRAM_BANKS=8 to
sysutils/u-boot-rpi4's rpi4_fragment and it 'just work' -- this was
tested on IRC a couple days ago, and should be safe for all variants
as far as I'm aware (but needed to test on my 4GB variant). Even
without this setting, it should still largely boot; you'll just only
have half the memory you wanted.

Thanks,

Kyle Evans