Messages in this thread |  | | | Subject | Re: [PATCH][2.4.27] PowerPC 745x data corruption bug fix | | From | Adrian Cox <> | | Date | Wed, 18 Aug 2004 12:10:48 +0100 |
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On Mon, 2004-08-16 at 18:05, Tom Rini wrote: > On Mon, Aug 16, 2004 at 12:04:08PM +0200, Mikael Pettersson wrote:
> > So previously a CPU got _PAGE_COHERENT on SMP. > > Now a CPU gets _PAGE_COHERENT on (SMP || 745x). > > > > I suspect the CONFIG_MPC10X_BRIDGE is an attempt to enable > > the fix in some other cases too. > > The reason CPU_FTR_NEED_COHERENT was added was to work around an MPC107 > (now Tsi107) errata. See > http://216.239.57.104/search?q=cache:1MDn1X8ieUUJ:www.geocrawler.com/archives/3/8358/2002/9/100/9559482/+%22Adrian+Cox%22+errata&hl=en > (original is conn refused right now).
I've now written some notes to explain these issues, in case it comes up again: http://www.humboldt.co.uk/Notes/mpc107cache.html
- Adrian Cox Humboldt Solutions Ltd.
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