[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Qemu-devel] sparc sun4m changes

From: Blue Swirl
Subject: Re: [Qemu-devel] sparc sun4m changes
Date: Thu, 13 Aug 2009 21:54:01 +0300

On Mon, Aug 10, 2009 at 5:28 AM, Robert Reif<address@hidden> wrote:
> Robert Reif wrote:
>> I just took a look at the sun4m interrupt controller and noticed
>> the recent changes.  There are at least 3 different interrupt
>> controllers used by sun4m: ss600mp with VME and MBUS
>> specific support, ss 10/20 with MBUS support and ss 4/5/lx
>> with slavio support.  This doesn't even address the java stations.
>> intbit_to_level in slavio_intctrl.c needs to be different for each
>> controller chip used.  There also needs to be a controller specific
>> interrupt mask used.
>> The NCR slavio chip is only used for single processor systems
>> (ss 4/5/lx).  It is a subset of the ss 10/20 which is a subset of the
>> ss600mp.  We really should address these differences.
> I forgot to mention the ss 10/20 uses an STP 2014 SBus to EBus
> Interface Controller.  I have a paper copy of the User's Guide.  I
> can have it scanned to a pdf if necessary.

I didn't find EBus on SS 10/20 OF trees, what's it used for? More docs
would be nice, though.

> The ss600mp uses ASICs with no documentation other than
> the sun4m System Architecture manual and SPARCsystem 600MP
> VMEbus Implementation Guide on:
> http://wikis.sun.com/display/FOSSdocs/Home.

There has been no activity in a year, are all devices documented already?

reply via email to

[Prev in Thread] Current Thread [Next in Thread]