From owner-freebsd-arm@FreeBSD.ORG Thu Apr 10 14:47:18 2014 Return-Path: Delivered-To: freebsd-arm@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id B9A39322 for ; Thu, 10 Apr 2014 14:47:18 +0000 (UTC) Received: from mho-01-ewr.mailhop.org (mho-03-ewr.mailhop.org [204.13.248.66]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 8D22C1A86 for ; Thu, 10 Apr 2014 14:47:18 +0000 (UTC) Received: from c-24-8-230-52.hsd1.co.comcast.net ([24.8.230.52] helo=damnhippie.dyndns.org) by mho-01-ewr.mailhop.org with esmtpsa (TLSv1:AES256-SHA:256) (Exim 4.72) (envelope-from ) id 1WYGG5-0007Je-E3; Thu, 10 Apr 2014 14:47:17 +0000 Received: from [172.22.42.240] (revolution.hippie.lan [172.22.42.240]) by damnhippie.dyndns.org (8.14.3/8.14.3) with ESMTP id s3AElEUO095284; Thu, 10 Apr 2014 08:47:14 -0600 (MDT) (envelope-from ian@FreeBSD.org) X-Mail-Handler: Dyn Standard SMTP by Dyn X-Originating-IP: 24.8.230.52 X-Report-Abuse-To: abuse@dyndns.com (see http://www.dyndns.com/services/sendlabs/outbound_abuse.html for abuse reporting information) X-MHO-User: U2FsdGVkX18HHefaqduqLr/9YETELQK+ Subject: Re: [Patch v1] [BeagleBone Black] port the latest u-boot-2014-01 From: Ian Lepore To: Xuebing Wang In-Reply-To: <53468E7A.70309@gmail.com> References: <5345FEED.1040604@gmail.com> <20140410104921.GA95756@cicely7.cicely.de> <53468E7A.70309@gmail.com> Content-Type: text/plain; charset="us-ascii" Date: Thu, 10 Apr 2014 08:47:14 -0600 Message-ID: <1397141234.1124.47.camel@revolution.hippie.lan> Mime-Version: 1.0 X-Mailer: Evolution 2.32.1 FreeBSD GNOME Team Port Content-Transfer-Encoding: 7bit Cc: freebsd-arm@FreeBSD.org, ticso@cicely.de X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.17 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 10 Apr 2014 14:47:18 -0000 On Thu, 2014-04-10 at 20:28 +0800, Xuebing Wang wrote: > On 04/10/2014 06:49 PM, Bernd Walter wrote: > > That's a lot more than is expected when going from 800 to 1000MHz. > > Is there anything else different - e.g. cache settings? > I am not sure. > > In the current u-boot UART log, we see "WARNING: Caches not enabled". > With the latest u-boot, there is no such warning. > > However, Kernel does print out below about cache: > Cache level 1: > 32KB/64B 4-way data cache WT WB Read-Alloc > 32KB/64B 4-way instruction cache Read-Alloc > Cache level 2: > 256KB/64B 8-way unified cache WT WB Read-Alloc Write-Alloc > The same thing happened in imx6 u-boot, the 2013.04 didnt' turn on caches, but 2014.01 does. -- Ian