From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS, URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A811CC10F14 for ; Fri, 12 Apr 2019 05:49:58 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 78ACA2082E for ; Fri, 12 Apr 2019 05:49:58 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DhTK4BPG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 78ACA2082E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=7iJk2GOX0XZiwi1w8rjn9tqioVjRomgf1kkEiKQP2fE=; b=DhTK4BPGSMvzVO KQviXCj83gqHRj9HUNy4lUAuwxHxCZuh38smZsfwVmBWAuPKEBbISHcCHV/UG18gdr7Lh7VpBud0d aIIPGnYkFhXHIhv8/PxFGEsk1PMyJn7Q0TbQXitnPqabPPWGCWm/5l/xiAz+sVgHcq2CZk8vZ3vTg Py5yd/3ohlDeAbM55hytNXXCulNTqC+uEc28EqFyotxPmJ7jbGqI+BreV1K2cfVGmpmGo+SMvXlBB VZR3+qj2sU9P9cYaCayApqc0T6CLKs5emPlNZulpFLO/mMz0eKqDVHC3N6zfiWrQMyUQqjbEfjp2r deB7hb3HBfRyYuw4tEow==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hEp4V-00071M-KS; Fri, 12 Apr 2019 05:49:55 +0000 Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1hEp4S-00070r-AI; Fri, 12 Apr 2019 05:49:52 +0000 Date: Thu, 11 Apr 2019 22:49:52 -0700 From: Christoph Hellwig To: Paul Walmsley Subject: Re: [PATCH 1/6] arch: riscv: add support for building DTB files from DT source data Message-ID: <20190412054952.GA26672@infradead.org> References: <20190411084304.5072-2-paul.walmsley@sifive.com> <20190411114616.GA10032@infradead.org> <3cf7f2d8-3039-7dd7-e243-77433b1f23a6@wdc.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.9.2 (2017-12-15) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "devicetree@vger.kernel.org" , Paul Walmsley , Albert Ou , Palmer Dabbelt , "linux-kernel@vger.kernel.org" , Christoph Hellwig , Atish Patra , "linux-riscv@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org On Thu, Apr 11, 2019 at 05:08:11PM -0700, Paul Walmsley wrote: > However: the vast majority of users -- even embedded users -- will not use > a kernel with a bundled DTB. This is because it irrevocably ties that > kernel binary to one specific board type. I hope it is obvious why this > would be a non-starter for Linux distributions, and, more generally, > anyone who wants their kernels to be usable on multiple boards. Those > distributors would need to ship one kernel binary per board, or bloat > their kernels with DTBs and come up with some new mechanism to select one. Yes, that is the point why the DTB usually comes with the firmware. In my case I need it because by nommu M-mode Linux port targeted to the Kendrye _is_ the firmware and there is nothing else running on that tiny system. But why are you submitting the DTB files if there is not ways use them from the kernel? That is what I was wondering about. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv