onboard wireless on rpi4

[Mark Millard]

On 2020-Sep-6, at 08:20, Robert Crowston via freebsd-arm <freebsd-arm at freebsd.org> wrote:

> That's interesting: OpenBSD is allowing only the lowest 1 GB of memory for DMA; the documentation I obtained suggests the first 3 GB should be accessible. I am experimenting with this new lower bound.

https://rpi4-uefi.dev/tag/netbsd/ reports:

QUOTE
NetBSD also is the only OS today to fully support ACPI _DMA descriptors for describing DMA translations/constraints. This is very important for supporting Pi and Pi-like platforms via straight-up ACPI and without platform DMA quirks. 
END QUOTE

> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Sunday, 6 September 2020 13:40, Klaus Cucinauomo <maciphone2 at googlemail.com> wrote:
> 
>>> Am 06.09.2020 um 06:40 schrieb Warner Losh <imp at bsdimp.com>:
>>> 
>>> I thought I read they added the busdma constraints we are missing…
>>> 
>>> Warner
>> 
>> Yes, for OpenBSD I thought the same , to be a little more specific :
>> 
>> https://github.com/openbsd/src/commit/aae395593ca184a639a1c158ceb4b2132d85e7c2
>> 
>> https://github.com/openbsd/src/commit/a88d14946aed5dc48e4e700486795c8d171576d0
> 



===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)