> -----Original Message----- > From: Sripathy, Vishwanath [mailto:vishwanath.bs@xxxxxx] > Sent: Thursday, November 18, 2010 9:09 AM > To: Nishanth Menon > Cc: Jean Pihet; linux-omap@xxxxxxxxxxxxxxx; Kevin Hillman; Jean Pihet-XID > Subject: Re: [PATCH 1/2] OMAP3 PM: move omap3 sleep to ddr > > NIshant, > > On Thu, Nov 18, 2010 at 8:27 PM, Nishanth Menon <nm@xxxxxx> wrote: > >> -----Original Message----- > >> From: linux-omap-owner@xxxxxxxxxxxxxxx [mailto:linux-omap- > >> owner@xxxxxxxxxxxxxxx] On Behalf Of Jean Pihet > >> Sent: Thursday, November 18, 2010 8:52 AM > >> To: linux-omap@xxxxxxxxxxxxxxx > >> Cc: Vishwanath BS; Kevin Hillman; Jean Pihet > >> Subject: [PATCH 1/2] OMAP3 PM: move omap3 sleep to ddr > >> > >> From: Vishwanath BS <vishwanath.bs@xxxxxx> > >> > >> For historical reasons the OMAP3 sleep code is run from SRAM. > >> This code can run from DDR which provides better performance and > >> leaves the SRAM available for other uses. > >> > >> Tested on ZOOM3, OMAP3EVM, Beagleboard, n900 > >> with full RET and OFF modes. > > > > Sorry, But I disagree with this patch. > > > > There is a silicon errata which cannot be handled with this - RTA > disable > > - errata i608 > > > > You need to disable RTA while coming out of OFF - we cannot handle this > on > > > > GP devices if this is not done. > When you come out of Core off, SRAM contents are anyway lost. So you > have to run from DDR after ROM Code completes. This behavior has not > changed with this patch. I fail to understand your concern here. I could potentially be mistaken. Let me do one thing - I will post out the patches that I have to the list and we can see how this all works together. Regards, Nishanth Menon -- 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
