Initial support for bcm2838 RNG

[Mark Murray]

Hi,

> On 16 Nov 2019, at 18:59, Kyle Evans <kevans at FreeBSD.org> wrote:
> 
> On Sat, Nov 16, 2019 at 12:48 PM Robert Crowston via freebsd-arm
> <freebsd-arm at freebsd.org> wrote:
>> 
>> I have made a first cut at supporting the Broadcom 2838 hardware random number generator, as found on the Raspberry Pi 4.
>> 
>> Diff: https://github.com/freebsd/freebsd/compare/master...RobCrowston:pi4-hwrng
>> 
>> This extends the existing bcm2835_rng.c driver to function on the Pi4. Unfortunately I do not have a Raspberry Pi 3 board to confirm it still works there, but on my Pi4, it generates (apparently) random numbers.
>> 
> 
> Hi,
> 
> No worries- I've got access to a Pi 3 for regression testing. Can you
> throw what you've got into Phabricator [0] and add me as a reviewer?
> We can iterate/review from there.

Please also add markm@ and cem@ (or csprng@). You'll need one of us to OK the commit.

M
-- 
Mark R V Murray