[Skiboot] [RFC PATCH] Remove POWER9 DD1 support

[Nicholas Piggin]

Stewart Smith's on January 8, 2019 10:27 am:
> Nicholas Piggin <npiggin at gmail.com> writes:
>> There's a couple of cases I'm not sure if they're still needed (marked
>> with XXX).
>>
>> Hostboot and Linux have removed DD1 support so there's not much point
>> keeping it around.
> 
> Hilariously, we still have P8 DD1 support that works well enough to boot
> to a login prompt! I know this because somebody found a palmetto
> somewhere in the depths of IBM Austin and asked me why we threw so many
> errors while booting... :)

We could remove that too, I didn't look how much headache it is. I 
suspect a lot of P9 code will be shared or reused by other hardware, so 
that was my main concern here.

Thanks,
Nick