From mboxrd@z Thu Jan 1 00:00:00 1970 From: NeilBrown Subject: Re: bisected regression: arm: omap3: voltage: fix channel configuration Date: Tue, 24 Jul 2012 17:34:53 +1000 Message-ID: <20120724173453.01078466@notabene.brown> References: <20120723210635.25e0a0d8@notabene.brown> <1343053494.30247.22.camel@sokoban> <20120724113057.5f38806e@notabene.brown> <1343111304.30247.43.camel@sokoban> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/wz04O7PJmG35mmDipPBAehC"; protocol="application/pgp-signature" Return-path: Received: from cantor2.suse.de ([195.135.220.15]:45905 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755084Ab2GXHgt (ORCPT ); Tue, 24 Jul 2012 03:36:49 -0400 In-Reply-To: <1343111304.30247.43.camel@sokoban> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: t-kristo@ti.com Cc: Kevin Hilman , linux-omap@vger.kernel.org --Sig_/wz04O7PJmG35mmDipPBAehC Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable On Tue, 24 Jul 2012 09:28:24 +0300 Tero Kristo wrote: > On Tue, 2012-07-24 at 11:30 +1000, NeilBrown wrote: > > Might there be some way to get it to scale higher than 600MHz? > > The first message from U-boot says: > >=20 > > OMAP3630/3730-GP ES2.1, CPU-OPP2, L3-165MHz, Max CPU Clock 1 Ghz > >=20 > > and the board manufacturer thinks it should be capable of 800MHz. >=20 > You need to enable 800MHz OPP similarly to what is done in=20 > beagle_opp_init() in board-omap3beagle.c. I am not sure what your board > is detected as, depends on your boot loader (check /proc/cpuinfo.) Thanks! Yes, my board identifies as cpu_is_omap3630() so that code looks relevant. I copied the opp_init across to my board file, it runs without complaining but it now gets to [ ok ] Loading cpufreq kernel modules...done (none). [....] CPUFreq Utilities: Setting ondemand CPUFreq governor...CPU0... and hangs. magic SYSRQ doesn't respond. Any hints? Thanks, NeilBrown # # CPU Power Management # # # CPU Frequency scaling # CONFIG_CPU_FREQ=3Dy CONFIG_CPU_FREQ_TABLE=3Dy CONFIG_CPU_FREQ_STAT=3Dy CONFIG_CPU_FREQ_STAT_DETAILS=3Dy # CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE=3Dy # CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set # CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set CONFIG_CPU_FREQ_GOV_PERFORMANCE=3Dy CONFIG_CPU_FREQ_GOV_POWERSAVE=3Dy CONFIG_CPU_FREQ_GOV_USERSPACE=3Dy CONFIG_CPU_FREQ_GOV_ONDEMAND=3Dy CONFIG_CPU_FREQ_GOV_CONSERVATIVE=3Dy # # ARM CPU frequency scaling drivers # CONFIG_ARM_OMAP2PLUS_CPUFREQ=3Dy # CONFIG_ARM_EXYNOS4210_CPUFREQ is not set # CONFIG_ARM_EXYNOS4X12_CPUFREQ is not set # CONFIG_ARM_EXYNOS5250_CPUFREQ is not set CONFIG_CPU_IDLE=3Dy CONFIG_CPU_IDLE_GOV_LADDER=3Dy CONFIG_CPU_IDLE_GOV_MENU=3Dy --Sig_/wz04O7PJmG35mmDipPBAehC Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIUAwUBUA5QHTnsnt1WYoG5AQI6pQ/4v0rNyb0oDhU9VJpAqIAEinCaiY2Y7sX+ p7ueFQ/E3x3GmqYzV0R3mpma0ppjumN3qHnscIrx5shPQBnA36JVmWtQzPneBh8C 1IhrH4MFb7JBsPr5ojuah8meqo8YvXekOPkhMq9pPfC/qBBXJvehNuBQmsq2f+a2 0spJqVSJYbLh86quXIrwHKMQUDLnuzeaGh3eSsPykmpcz+GrhYfDkA+GNbzGyrbO lSEI48ktgqsp9Lt60Dd9SKirVoXTH1qyddXNFKGEsXsLDs7hf/amxkMcqNoyyJxu 7VlGjHqqGfH5iG3qoXZhWduVEPYTBdSALiaGIp80C7J0MGnmJXq58p0GjfdJ0Oq+ dGkY6x7QsffCMMVLaPbLeFU+vaMdFYJVxTiWHuAVtnXurdDqovTWmuXETBUrcJwT lLjS+uPeZi3EIeTw/zUxztnyFTGltkWAqaJyYRZSvPIo2qreKWGw5ppL6jmB8WwO SEla4FvT6uRAzGu9AaxL3ZM9xFiU5y4f+b4342xdhFISqh7YGqeXLYklpTuz7orI jsft0zq/e0aSS+Ch1JEhGBdWTuu6M13fefM6/JUqYF17ceIuX0qZs3jtseatkMEE BfyvjyMBe9TrTn+8sCl8utMv7thCUYtW/qxOQljr92yedkNzxZJ3R9cKHVL8aAg1 t/xcK+LXvw== =gtjm -----END PGP SIGNATURE----- --Sig_/wz04O7PJmG35mmDipPBAehC--