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    SubjectRe: Enable arm_global_timer for Zynq brakes boot
    On 08/12/13 09:24, Sören Brinkmann wrote:
    > On Mon, Aug 12, 2013 at 09:20:19AM -0700, Stephen Boyd wrote:
    >> On 08/12/13 09:03, Sören Brinkmann wrote:
    >>> On Fri, Aug 09, 2013 at 10:27:57AM -0700, Stephen Boyd wrote:
    >>>> On 08/09, Daniel Lezcano wrote:
    >>>>> yes, but at least the broadcast mechanism should send an IPI to cpu0 to
    >>>>> wake it up, no ? As Stephen stated this kind of configuration should has
    >>>>> never been tested before so the tick broadcast code is not handling this
    >>>>> case properly IMHO.
    >>>>>
    >>>> If you have a per-cpu tick device that isn't suffering from
    >>>> FEAT_C3_STOP why wouldn't you use that for the tick versus a
    >>>> per-cpu tick device that has FEAT_C3_STOP? It sounds like there
    >>>> is a bug in the preference logic or you should boost the rating
    >>>> of the arm global timer above the twd. Does this patch help? It
    >>>> should make the arm global timer the tick device and whatever the
    >>>> cadence timer you have into the broadcast device.
    >>> I finally got to test your patch. Unfortunately, it makes the system
    >>> hang even earlier:
    >> Sorry it had a bug depending on the registration order. Can you try this
    >> one (tabs are probably spaces, sorry)? I will go read through this
    >> thread to see if we already covered the registration order.
    > What is the base for your patch? I based my GT enable patch on 3.11-rc3
    > and for consistency in our debugging, I didn't move it elsewhere since.
    > Your patch doesn't apply cleanly on it. I see if I can work it out, just
    > let me know if it depends on something not available in 3.11-rc3.

    I applied this on 3.11-rc4. I don't think anything has changed there
    between rc3 and rc4. so you're probably running into the whitespace problem.

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