On Wed, Nov 18, 2009 at 6:11 AM, Gopinath, Thara <thara@xxxxxx> wrote: > > >>>-----Original Message----- >>>From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap-owner@xxxxxxxxxxxxxxx] On Behalf Of Kevin >>>Hilman >>>Sent: Wednesday, November 18, 2009 12:04 AM >>>To: Tero Kristo >>>Cc: linux-omap@xxxxxxxxxxxxxxx >>>Subject: Re: [PATCH] OMAP3: PM: Force write last pad config register into save area >>> >>>Tero Kristo <tero.kristo@xxxxxxxxx> writes: >>> >>>> From: Tero Kristo <tero.kristo@xxxxxxxxx> >>>> >>>> Due to OMAP3 errata XYZ, the save of the last pad register (ETK_D14 and >>>> ETK_D15) can fail sometimes when there is simultaneous OCP access to the >>>> SCM register area. Fixed by writing the last register to the save area. >>>> >>>> Also, optimized the delay loop for the HW save to include an udelay(1), >>>> which limits the number of unnecessary HW accesses to SCM register area >>>> during the save. >>>> >>>> Signed-off-by: Tero Kristo <tero.kristo@xxxxxxxxx> >>> >>>I certainly like this fix much better than the original proposal: >>> >>> http://marc.info/?l=linux-omap&m=125474186609661&w=2 > > Please do not merge this patch until TI officially confirms the workaround. > OK. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
