From owner-freebsd-arm@FreeBSD.ORG  Thu Apr 10 12:28:47 2014
Return-Path: <owner-freebsd-arm@FreeBSD.ORG>
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 ESMTPS id 8758CE19;
 Thu, 10 Apr 2014 12:28:47 +0000 (UTC)
Received: from mail-pa0-x233.google.com (mail-pa0-x233.google.com
 [IPv6:2607:f8b0:400e:c03::233])
 (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits))
 (Client CN "smtp.gmail.com",
 Issuer "Google Internet Authority G2" (verified OK))
 by mx1.freebsd.org (Postfix) with ESMTPS id 56FB11BEE;
 Thu, 10 Apr 2014 12:28:47 +0000 (UTC)
Received: by mail-pa0-f51.google.com with SMTP id kq14so3938485pab.10
 for <multiple recipients>; Thu, 10 Apr 2014 05:28:47 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113;
 h=message-id:date:from:user-agent:mime-version:to:cc:subject
 :references:in-reply-to:content-type:content-transfer-encoding;
 bh=TjDscVVAErMselikOH/D58bD7ioOenKlgfYsOt5xUeo=;
 b=ZJ2nVb8eWHmywjlXi/TNrFY2cllTi/vt6+5jAYW2emEZBXS17K2o22IIHHeSrsRvuj
 tgYS5GsjxCl2KwkdOEokNgSLVnh0YIiAO2LPaFLNZkbaxuHSaSOtHzsxa3RA/hvvNEPS
 rkypB9VmKfbHxThlmQtudfCxKQbEvkD2cLezcy3Gk5cR4KA4xckWn2NcCmoZtXkPCXhT
 zS8Pji+Pred/V6hl67BskY6tGXEUgimF/iMMRiJJcZw4LDCW1Jaldxibu+sIgqzc4C7W
 g3FS8sweyiF+oN27jhkyG2m0Fp3YwdnNXyY9WDTZlq27FGDHogzXaYH3pS2cjAXw2OET
 r4Yw==
X-Received: by 10.68.239.70 with SMTP id vq6mr19134093pbc.152.1397132926967;
 Thu, 10 Apr 2014 05:28:46 -0700 (PDT)
Received: from [216.131.71.98] ([216.131.71.98])
 by mx.google.com with ESMTPSA id ff4sm20047613pad.24.2014.04.10.05.28.44
 for <multiple recipients>
 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128);
 Thu, 10 Apr 2014 05:28:46 -0700 (PDT)
Message-ID: <53468E7A.70309@gmail.com>
Date: Thu, 10 Apr 2014 20:28:42 +0800
From: Xuebing Wang <xbing6@gmail.com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64;
 rv:24.0) Gecko/20100101 Thunderbird/24.3.0
MIME-Version: 1.0
To: ticso@cicely.de
Subject: Re: [Patch v1] [BeagleBone Black] port the latest u-boot-2014-01
References: <5345FEED.1040604@gmail.com>
 <20140410104921.GA95756@cicely7.cicely.de>
In-Reply-To: <20140410104921.GA95756@cicely7.cicely.de>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: freebsd-arm@freebsd.org
X-BeenThere: freebsd-arm@freebsd.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: "Porting FreeBSD to ARM processors." <freebsd-arm.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arm/>
List-Post: <mailto:freebsd-arm@freebsd.org>
List-Help: <mailto:freebsd-arm-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-arm>,
 <mailto:freebsd-arm-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Thu, 10 Apr 2014 12:28:47 -0000


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

-- 
Thanks,
Xuebing Wang