From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthieu CASTET Subject: Re: [PATCH v4 1/4] usb: otg: Add ulpi viewport access ops Date: Mon, 21 Feb 2011 16:30:09 +0100 Message-ID: <4D628501.50105@parrot.com> References: <1298000565-20627-1-git-send-email-benoit@android.com> <1298000565-20627-2-git-send-email-benoit@android.com> <4D5E9337.3010603@compulab.co.il> <4D622A97.2040101@parrot.com> <4D62593C.4070000@compulab.co.il> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <4D62593C.4070000-UTxiZqZC01RS1MOuV/RT9w@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Igor Grinberg Cc: Benoit Goby , David Brownell , Greg Kroah-Hartman , "linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Robert Morell , Olof Johansson , Erik Gilling , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" List-Id: linux-tegra@vger.kernel.org Igor Grinberg a =E9crit : > Hi, >=20 > On 02/21/11 11:04, Matthieu CASTET wrote: >=20 >> Hi, >> >> Igor Grinberg a =E9crit : >>> Hi, >>> >>> On 02/18/11 05:42, Benoit Goby wrote: >>>> Add generic access ops for controllers with a ulpi viewport regist= er >>>> (e.g. Chipidea/ARC based controllers). >>> I can see mxc, msm and langwell are using the same bits >>> (or at least some of them). >> They all use the Chipidea/ARC usb controllers. >=20 > This means, that it is not generic, but Chipidea/ARC usb controller s= pecific. > And it is common to some/many platforms. Yes >=20 > Can it be utilized on platforms that have another kind of ulpi access= register? I don't think so >=20 >>> Is there some kind of specification for this ulpi viewport register= ? >> You can find the Chipidea/ARC datasheet in IMX35 datasheet ( got 0x= 0170 ULPI VIEWPORT) or a newer version (extra fields in some registers= but miss 0x168-0x170) in >> http://www.nxp.com/documents/user_manual/UM10314.pdf >=20 > I don't have the IMX35 datasheet which describes the USB OTG register= s. > The one that can be downloaded from Freescale website, only describes > hardware and no ULPI viewport is mentioned there. From freescale.com I manage to download IMX35RM.pdf witch describe it=20 (p2075). Matthieu -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" = in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html