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Re: [PATCH] IP28 fixes

To: Sergei Shtylyov <>
Subject: Re: [PATCH] IP28 fixes
From: Sergei Shtylyov <>
Date: Mon, 14 Jan 2008 18:21:55 +0300
Cc: Ralf Baechle <>, Thomas Bogendoerfer <>,
In-reply-to: <>
Organization: MontaVista Software Inc.
Original-recipient: rfc822;
References: <> <> <>
User-agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803
I wrote:

- ISA DMA is broken on IP28
- bus error handler improved to not issue bus errors for
 speculative accesses to CPU and GIO addresses. We now
 treat CSTAT_ADDR and GSTAT_TIME errors as non fatal, when
 they are issues via MC error interrupt. For real (non
 speculative) bus errors a DBE will be issued, which is
 lethal as before. Handling the issue this way gets rid
 of decoding instructions

Signed-off-by: Thomas Bogendoerfer <>

Folded into the "[MIPS] IP28 support" patch for 2.6.28.

  Poor IP32 will have to wait couple of years? ;-)

   I meant IP28 of course. 1:1 in typos. :-)



WBR, Sergei

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