From owner-freebsd-arm@FreeBSD.ORG Fri Nov 1 19:34:59 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 CF25A7F5; Fri, 1 Nov 2013 19:34:59 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qc0-x230.google.com (mail-qc0-x230.google.com [IPv6:2607:f8b0:400d:c01::230]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 7FCCC2372; Fri, 1 Nov 2013 19:34:59 +0000 (UTC) Received: by mail-qc0-f176.google.com with SMTP id s19so2666115qcw.7 for ; Fri, 01 Nov 2013 12:34:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type:content-transfer-encoding; bh=Ht3UoJd5KNYaWqarKBVdnd53nW5Unn3CRigz/MA0KME=; b=Mij2o4MyZh2kP3I7WH3MEQBClUGl1iUGfppqK2I8nPJt8nr4oslru3sevVdd/cno7e RTsVfkJHi8ib/epy/QggCvKHr/67hwDGN7qL5rN0Az11Fb3lBMy2s8iWqpxVwB1NAEFA A/aGyXXRfztqCz73jOGT/+Zf/kRaHoctbA2kO92xwjBH6gmbwjfG0oWBNyVkn4AqavMx 6aKyZVbL+gM09f1ynHNHD0ZMB33u1IVehaVA/WXXOiuoTmtJVe0o5RZLxfK/hQfA71kG 7qBAfyyv5UzrWW6DbVO7u5gMZf1Rry926ywxq4X3T65Iw/QCjuK1nJPmdIz5gNtChgfU aJPA== MIME-Version: 1.0 X-Received: by 10.224.161.84 with SMTP id q20mr6212966qax.90.1383334498733; Fri, 01 Nov 2013 12:34:58 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.207.66 with HTTP; Fri, 1 Nov 2013 12:34:58 -0700 (PDT) In-Reply-To: <870557A9-9D0F-41E9-A124-F21C509830F7@bsdimp.com> References: <1383272225.31172.60.camel@revolution.hippie.lan> <870557A9-9D0F-41E9-A124-F21C509830F7@bsdimp.com> Date: Fri, 1 Nov 2013 12:34:58 -0700 X-Google-Sender-Auth: N3LWzdr8OhoD2RxVDmab9SAmyr4 Message-ID: Subject: Re: Wandboard support From: Adrian Chadd To: Warner Losh Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable 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 19:34:59 -0000 On 1 November 2013 10:29, Warner Losh wrote: > > On Oct 31, 2013, at 10:58 PM, Adrian Chadd wrote: > >> Hi! >> >> 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 othe= r >>> than me will have to look towards graphics and sound support (I have no >>> skills in those areas). >>> >> >> Cool! >> >> Can you describe what you need in the clock / power management areas? > > We don't have an infrastructure to do this right now. > > Some ports do this on an ad-hoc basis. > > 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 whi= ch may be necessary to power the clock and/or basic-blocks in the SoC. The = latest chips have grown quite complex. 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. :) -adrian