On Wed, Jan 05, 2000 at 10:05:30AM -0800, Eduardo E. Horvath wrote:
> You're getting a data error.  This means that while the address is
> mapped into the MMU, it's either mapped incorrectly (cacheable
> vs. uncacheable) or there realy is nothing responding to bus cycles at
> that physical address.

As these are volatile registers, I have not specified
BUS_SPACE_MAP_CACHEABLE.

According to the sbus attach information supplied to
dbri_attach_sbus() we have
    sa_nregs  == 1,
    sa_slot   == 2,
    sa_offset == 0x40, and
    sa_size   == 0x100

Thanks for your reply. How can I find out what physical
address is used?

    Ingolf
-- 

Ingolf Koch                      Beste Kneipe in Jena-Ost
PGP: 0x7B3B5661  213C 828E 0C92 16B5  05D0 4D5B A324 EC04