Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp4222575imu; Sat, 19 Jan 2019 05:04:19 -0800 (PST) X-Google-Smtp-Source: ALg8bN75YbOFio+AUUBnlQrPJ6EQsKFSDRyaFJxwf5814fKeKNUXePPiOcVm/ong7LaNTo8iD9wg X-Received: by 2002:a63:ed42:: with SMTP id m2mr21557900pgk.147.1547903059773; Sat, 19 Jan 2019 05:04:19 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1547903059; cv=none; d=google.com; s=arc-20160816; b=0CDqJfb9xhO0mzKQsJR7a3uUpZ+1pLD5tjEfo5xQFGxAju/DN3I36niPKNEa9hzxMm ed9kH1j44dr8doBb1GVY5ucVUQVdqZemfpH7LaR0l7NzXc+G71xyvm1BWnsI5ceBJq7T k+NvsnwYAxiMaUAFu5QEB6+jrolLbrOognk0Ny4K1qHpW/5kdC1pmv/RCcJ07za/4vwu sR10s2IzafiNvJoYMjM/yBpc9OhgDScatDf2K0dHiya+W+NElgMHn53IcpJ9QGuUFHmm ID7lpTEFhhrhFltW4f8/412/CfPEe5/fhIvULDidOKZ95+frb5Xm1NcpzKw5VRMYaSZq 3x/w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=zTiGGaxVixoqAUoxjpzzYUpwnz1cVhwoAXHoNjNt+Eo=; b=IdfkE+TVoJX3t89sUnOuYoPrTUUrNYh7c9xAhJcBoUJGw4Wb3HM5MsM2GypzMG2F6x OE4N1pcXWUrgiMjVjPO7ISsUaepwGn6NSWgPL+MMy5cSciQwXwJ7BDuRbf2bNTo2YjHC gWeJVdpwe5EDYiAU8GAMj4rRpl05YNlVcsOqxf3daOjTbMwxpfv1VJXWxATnjDwox7+U 6CtcT5xsAX5bp8J6gGB5pBLMA+x47SzJJukhABOFZavSP5k6uWU/+vAlKYB/FWr1m/Gz o15yzB0qCDyRWQtyrhf+k4v03DLSlPrQRfzXEjuAHQPROqv71ktXLrFT5M954jL8MUAZ 6VJQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id z5si7024022pgu.19.2019.01.19.05.04.01; Sat, 19 Jan 2019 05:04:19 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728142AbfASNCY (ORCPT + 99 others); Sat, 19 Jan 2019 08:02:24 -0500 Received: from verein.lst.de ([213.95.11.211]:49067 "EHLO newverein.lst.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727965AbfASNCY (ORCPT ); Sat, 19 Jan 2019 08:02:24 -0500 Received: by newverein.lst.de (Postfix, from userid 2407) id 5ACCB68D93; Sat, 19 Jan 2019 14:02:22 +0100 (CET) Date: Sat, 19 Jan 2019 14:02:22 +0100 From: Christoph Hellwig To: Christian Zigotzky Cc: Christoph Hellwig , linux-arch@vger.kernel.org, Darren Stevens , linux-kernel@vger.kernel.org, Julian Margetson , linux-mm@kvack.org, iommu@lists.linux-foundation.org, Paul Mackerras , Olof Johansson , linuxppc-dev@lists.ozlabs.org Subject: Re: use generic DMA mapping code in powerpc V4 Message-ID: <20190119130222.GA24346@lst.de> References: <20190118083539.GA30479@lst.de> <871403f2-fa7d-de15-89eb-070432e15c69@xenosoft.de> <20190118112842.GA9115@lst.de> <20190118121810.GA13327@lst.de> <20190118125500.GA15657@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Jan 19, 2019 at 12:52:52PM +0100, Christian Zigotzky wrote: > Hi Christoph, > > I have found a small workaround. If I add 'mem=3500M' to the boot arguments > then it detects the SATA hard disk and boots without any problems. > > X5000> setenv bootargs root=/dev/sda2 console=ttyS0,115200 mem=3500M Interesting. This suggest it is related to the use of ZONE_DMA by the FSL SOCs that your board uses. Let me investigate this a bit more.