From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vishwanath Sripathy Subject: RE: cpufreq support for the Beagleboard. Date: Tue, 22 Mar 2011 10:39:26 +0530 Message-ID: <0f31e209e69c20b1e5b1a9f31f95b843@mail.gmail.com> References: <641332d61bd84a5de4483dbb496ecd5a@mail.gmail.com> <859a150e6ceac11b05685418a0c9243c@mail.gmail.com> <4D879CA0.6070904@crhc.illinois.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from na3sys009aog113.obsmtp.com ([74.125.149.209]:51088 "EHLO na3sys009aog113.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753623Ab1CVFJc (ORCPT ); Tue, 22 Mar 2011 01:09:32 -0400 Received: by mail-qy0-f180.google.com with SMTP id 10so5619701qyk.11 for ; Mon, 21 Mar 2011 22:09:29 -0700 (PDT) In-Reply-To: <4D879CA0.6070904@crhc.illinois.edu> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Matt Johnson Cc: javier Martin , linux-omap@vger.kernel.org > -----Original Message----- > From: Matt Johnson [mailto:johnso87@crhc.illinois.edu] > Sent: Tuesday, March 22, 2011 12:15 AM > To: Vishwanath Sripathy > Cc: javier Martin; linux-omap@vger.kernel.org > Subject: Re: cpufreq support for the Beagleboard. > > On 03/21/2011 08:24 AM, Vishwanath Sripathy wrote: > >> -----Original Message----- > >> From: javier Martin [mailto:javier.martin@vista-silicon.com] > >> Sent: Monday, March 21, 2011 5:40 PM > >> To: Vishwanath Sripathy > >> Cc: linux-omap@vger.kernel.org > >> Subject: Re: cpufreq support for the Beagleboard. > >> > >> Hi, > >> thank you for your fast answer. > >> > >> I've been testing the repository you pointed me and I found that only > >> 300MHz and 600MHz can be selected in the Beagleboard xM. > >> Couldn't we work until 1000MHz? > > 1G is disabled by default in OPP table I suppose. Pls enable it (in > > omap36xx_opp_def_list) if your board supports it. > My understanding was that the mainline kernel needed support for > SmartReflex 1.5 and Adaptive Body Biasing (ABB), as found in TI's > linux-omap-psp 2.6.32, before it was safe to enable the 1GHz OPP on the > DM3730 (for e.g., Beagleboard xM). Is this not the case? Can we really > just flip the bit in the OPP table? Sorry, I should have been more explicit. Yes you need to have ABB and SR enabled before enabling 1G. Vishwa > > >> Do you know what's left for those patches to enter mainline? Is > >> anybody working on it? > > OMAP cpufreq is undergoing some architecture/design changes and > this is > > WIP. > > > > Vishwa > Thanks, > Matt > > >> Thanks. > >> > >> -- > >> Javier Martin > >> Vista Silicon S.L. > >> CDTUC - FASE C - Oficina S-345 > >> Avda de los Castros s/n > >> 39005- Santander. Cantabria. Spain > >> +34 942 25 32 60 > >> www.vista-silicon.com > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html