Hi, On Friday 24 April 2009 15:09:29 Kevin Hilman wrote: > "Nayak, Rajendra" <rnayak@xxxxxx> writes: > >> -----Original Message----- > >> From: Kevin Hilman [mailto:khilman@xxxxxxxxxxxxxxxxxxx] > >> Sent: Thursday, April 23, 2009 1:35 AM > >> To: Nayak, Rajendra > >> Cc: linux-omap > >> Subject: Re: [PATCH 00/10] OMAP3: SR: Fixes in Smartreflex driver > >> > >> "Nayak, Rajendra" <rnayak@xxxxxx> writes: > >> > Re-sending this patch-set with some mailer issues resolved. > >> > >> They now apply cleanly > >> > >> > with a git-am/git-apply. > >> > > >> > Hi, > >> > > >> > This series fixes a set of defects/issues in Smartreflex > >> > >> driver. SR autocompensation is now > >> > >> > functional and is validated with these patches on a ES3.1 > >> > >> based SDP with the N values in Efuse. > >> > >> > The patches also make the Smartreflex driver independent of > >> > >> SRF by using the OMAP PM apis > >> > >> > instead of calls to SRF. > >> > > >> > Patches apply on top of the latest pm branch from Kevin's pm tree. > >> > >> git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-om > >> ap-pm.git > >> > >> Rajendra, > >> > >> This series seems to boot on SDP and Beagle but I recetly tried on > >> RX51 and it hangs in omap3_sr_init(). > >> > >> Using Lauterbach, I tracked it to hang in sr_configure_vp() at this > >> PRM write to the PRM_VP1_VLIMITTO register: > >> > >> prm_write_mod_reg(PRM_VP1_VLIMITTO_VDDMAX | > >> PRM_VP1_VLIMITTO_VDDMIN | > >> PRM_VP1_VLIMITTO_TIMEOUT, > >> OMAP3430_GR_MOD, > >> OMAP3_PRM_VP1_VLIMITTO_OFFSET); > >> > >> > >> Should these min/max/timeout values be board specific? > > > > Kevin, > > > > These values I remember we got from the SiVal team here at TI, I don't > > think they are board specific. I can check up more on that from them. > > Btw, does the hang happen only with my patchset applied, because the > > patchset does not change any of these values. > > Yes, backing out your latest series results in a booting kernel. Using the latest SR patches on Beagleboard results in a booting kernel. BUT the problem is a board freeze when switching between OPPs. After a few transitions the board hangs. Regards, Jean > > Kevin > -- > 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 -- 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
