From owner-freebsd-arm@FreeBSD.ORG Fri Nov 1 21:01:48 2013 Return-Path: Delivered-To: freebsd-arm@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id DFC5B70D for ; Fri, 1 Nov 2013 21:01:48 +0000 (UTC) (envelope-from imp@bsdimp.com) Received: from mail-ie0-f175.google.com (mail-ie0-f175.google.com [209.85.223.175]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id ACEB52828 for ; Fri, 1 Nov 2013 21:01:48 +0000 (UTC) Received: by mail-ie0-f175.google.com with SMTP id aq17so8225986iec.20 for ; Fri, 01 Nov 2013 14:01:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:sender:subject:mime-version:content-type:from :in-reply-to:date:cc:content-transfer-encoding:message-id:references :to; bh=ElFWGEl3r2zDwOaAz5u1gLg/bqTAD2LEGZNvMagY/Ns=; b=F/Nckd1kH2KEv9qLIuhn24WcSUFtcxFifMuFZ4o3jqB1bkYoVrpIj5wr8Hoc5/7nx5 x9PdTIEYoISPK7ouw7fMPVTotIMDQKMMTbpmCa/QwV1u3KmPRB7lCsJLWYO25rkhtJdd TIlMTMF5ekRb6Zaq7Q7NZA3yMEd5VVFgmezMBD6BgoNEcTazXFBdWDxmk5+4PyroCrw7 b/jXNIVY/MMdmHJN34SV0B+iY95pgh/g7f60k8WYL9lm0sgA9sjQeF2y4ONiolPlbyhZ DyVlRT6EWLyrUS3N9hpBkSY7phflByHCgiRkBzT45tfJlSVVv851mXEwGCovpcyUy306 tyOQ== X-Gm-Message-State: ALoCoQmBKwdkn6LWxRcysSLbnWzqyg5m0eXPiu1flPXiz2ahqPcuPqKNNQiB57OyGOKBmhwlS+TZ X-Received: by 10.50.45.73 with SMTP id k9mr3994970igm.38.1383339702700; Fri, 01 Nov 2013 14:01:42 -0700 (PDT) Received: from monkey-bot.int.fusionio.com ([209.117.142.2]) by mx.google.com with ESMTPSA id x6sm5192217igb.3.2013.11.01.14.01.41 for (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 01 Nov 2013 14:01:41 -0700 (PDT) Sender: Warner Losh Subject: Re: Wandboard support Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: text/plain; charset=us-ascii From: Warner Losh In-Reply-To: Date: Fri, 1 Nov 2013 15:01:39 -0600 Content-Transfer-Encoding: quoted-printable Message-Id: <464A8F80-BC99-4522-A215-7EE44DA03C9D@bsdimp.com> References: <1383272225.31172.60.camel@revolution.hippie.lan> <870557A9-9D0F-41E9-A124-F21C509830F7@bsdimp.com> To: Adrian Chadd X-Mailer: Apple Mail (2.1085) Cc: freebsd-arm , Ian Lepore X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Porting FreeBSD to the StrongARM Processor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Nov 2013 21:01:48 -0000 On Nov 1, 2013, at 1:34 PM, Adrian Chadd wrote: > On 1 November 2013 10:29, Warner Losh wrote: >>=20 >> On Oct 31, 2013, at 10:58 PM, Adrian Chadd wrote: >>=20 >>> Hi! >>>=20 >>> On 31 October 2013 19:17, Ian Lepore wrote: >>>> As of r257489 we now have some support for i.MX6 in general and >>>> Wandboard specifically. There is much work to do, especially in = the >>>> area of clock and power management and pinmux control, and someone = other >>>> than me will have to look towards graphics and sound support (I = have no >>>> skills in those areas). >>>>=20 >>>=20 >>> Cool! >>>=20 >>> Can you describe what you need in the clock / power management = areas? >>=20 >> We don't have an infrastructure to do this right now. >>=20 >> Some ports do this on an ad-hoc basis. >>=20 >> The usual needs are to have a DAG relationship between different = parts of the system so you can turn on and tune clocks, as well as power = blocks which may be necessary to power the clock and/or basic-blocks in = the SoC. The latest chips have grown quite complex. >=20 > Well we can plan this stuff out at the next get-together. But first, > I'd like to finish tidying up the MIPS infrastructure stuff before we > tackle the ARM infrastructure stuff. :) Yea, I'm still focused on MIPS... The problem statement was from what I = know about the ARM clock/power code for each of the SoCs... It shouldn't = be viewed as a 'I got this problem and am working on code' at all :) Warner=