From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ilya Yanok Subject: Re: [PATCH 2/2] mt_ventoux: support for TeeJet Mt.Ventoux board Date: Thu, 12 Jan 2012 00:04:14 +0400 Message-ID: <4F0DEB3E.6060809@emcraft.com> References: <1324940912-18164-1-git-send-email-yanok@emcraft.com> <1324940912-18164-3-git-send-email-yanok@emcraft.com> <4EF97A41.7050605@compulab.co.il> <4EFA4E9C.30307@emcraft.com> <4F02CED6.8090709@compulab.co.il> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from ocean.emcraft.com ([213.221.7.182]:49895 "EHLO ocean.emcraft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755897Ab2AKUEY (ORCPT ); Wed, 11 Jan 2012 15:04:24 -0500 In-Reply-To: <4F02CED6.8090709@compulab.co.il> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Igor Grinberg Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, devicetree-discuss@lists.ozlabs.org, sasha_d@emcraft.com Hi Igor, On 03.01.2012 13:48, Igor Grinberg wrote: >> I will forward this info to hardware guys and ask about wiring. For now >> I will leave it as is. Thanks for this information it turned to be some >> kind of mystery. It would be great if you could give some pointer to the >> datasheet regarding VDDSHV and DSS. > > Well, there is no direct pointer to that information, but > I've found these facts: > 1) the "Ball Characteristics" tables state that the DSS related pins > (and also many others) are powered by the VDDSHV. > 2) the estimated power consumption of VDDSHV is the largest after the > VDD_CORE, which is typical for DSS, but it is also one of the largest > power domains, so I guess this cannot be a valid argument ;-) > 3) On the "Voltage domains" diagram, only the VDD_CORE is exposed and > DSS is not listed in it, but there are other domains which are not > exposed... (this only can exclude the DSS from VDD_CORE, but not > absolutely, as datasheets can have mistakes or just not give that piece > of information). > > Still, it is a guess and not verified information. Yes, I understand. Thanks for sharing you thoughts! Regards, Ilya. From mboxrd@z Thu Jan 1 00:00:00 1970 From: yanok@emcraft.com (Ilya Yanok) Date: Thu, 12 Jan 2012 00:04:14 +0400 Subject: [PATCH 2/2] mt_ventoux: support for TeeJet Mt.Ventoux board In-Reply-To: <4F02CED6.8090709@compulab.co.il> References: <1324940912-18164-1-git-send-email-yanok@emcraft.com> <1324940912-18164-3-git-send-email-yanok@emcraft.com> <4EF97A41.7050605@compulab.co.il> <4EFA4E9C.30307@emcraft.com> <4F02CED6.8090709@compulab.co.il> Message-ID: <4F0DEB3E.6060809@emcraft.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Igor, On 03.01.2012 13:48, Igor Grinberg wrote: >> I will forward this info to hardware guys and ask about wiring. For now >> I will leave it as is. Thanks for this information it turned to be some >> kind of mystery. It would be great if you could give some pointer to the >> datasheet regarding VDDSHV and DSS. > > Well, there is no direct pointer to that information, but > I've found these facts: > 1) the "Ball Characteristics" tables state that the DSS related pins > (and also many others) are powered by the VDDSHV. > 2) the estimated power consumption of VDDSHV is the largest after the > VDD_CORE, which is typical for DSS, but it is also one of the largest > power domains, so I guess this cannot be a valid argument ;-) > 3) On the "Voltage domains" diagram, only the VDD_CORE is exposed and > DSS is not listed in it, but there are other domains which are not > exposed... (this only can exclude the DSS from VDD_CORE, but not > absolutely, as datasheets can have mistakes or just not give that piece > of information). > > Still, it is a guess and not verified information. Yes, I understand. Thanks for sharing you thoughts! Regards, Ilya.