Messages in this thread | | | Date | Wed, 27 Jun 2012 18:10:25 +0800 | From | Zhao Chenhui <> | Subject | Re: [PATCH v6 1/5] powerpc/85xx: implement hardware timebase sync |
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On Tue, Jun 26, 2012 at 09:03:42AM -0500, Kumar Gala wrote: > > On Jun 26, 2012, at 5:25 AM, Zhao Chenhui wrote: > > > Do hardware timebase sync. Firstly, stop all timebases, and transfer > > the timebase value of the boot core to the other core. Finally, > > start all timebases. > > > > Only apply to dual-core chips, such as MPC8572, P2020, etc. > > > > Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com> > > Signed-off-by: Li Yang <leoli@freescale.com> > > --- > > Changes for v6: > > * added 85xx_TB_SYNC > > * added isync() after set_tb() > > * removed extra entries from mpc85xx_smp_guts_ids > > Why only on dual-core chips? Is this because of something related to 2 cores, or related to corenet vs non-corenet SoCs and how turning on/off the timebase works in the SOC? > > - k
I am working on a timebase sync patch for corenet SoCs which have more than 2 cores. It is based on this patch.
-Chenhui
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