Subject: Re: Sbus in JS1
To: None <port-sparc@netbsd.org>
From: Valeriy E. Ushakov <uwe@ptc.spbu.ru>
List: port-sparc
Date: 04/20/2001 09:10:14
On Fri, Apr 20, 2001 at 07:44:02 +0400, Valeriy E. Ushakov wrote:
> > Strange. sbus is a child of the root node. There's no iommu node.
> >
> > not so strange. an SS2 has:
>
> I thought sbus at mainbus is 4c thing.
Yep, it seems OBP device tree is just lying:
ok see iommu-ctl@
: iommu-ctl@
(f0026dec) (f002520c)
;
ok f0026dec (see)
10000000 constant (f0026dec)
ok f002520c (see)
: (f002520c)
bypass-asi spacel@
;
> > perhaps you will need to invent a new bus space backend for it
So this looks like normal sun4m sbus at iommu setup. I'll just need
to fake few bits to make iommu attach.
SY, Uwe
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