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    SubjectRe: [PATCH][2.4.27] PowerPC 745x data corruption bug fix
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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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