From patchwork Tue Sep 17 07:15:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11148145 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6E05D14F7 for ; Tue, 17 Sep 2019 07:15:29 +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 4BA6F20644 for ; Tue, 17 Sep 2019 07:15:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="Y8ZZ02p5" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4BA6F20644 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.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:MIME-Version:Message-Id:Date:Subject:To :From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=YzGTgrZ8kjEdpgnHtMCQKRZbQGvQ1TTQEkI6yPFSzmM=; b=Y8ZZ02p5vtTaPN G8RscYhFw/8Vz2xxhWpMdT5gQrFF/hvWDw5KkmnsmJZ2tq/9coGvhsCI5KrqiG8hCMWe4Q7Kz/jRT lR3K7Z8lrYg3zDO6cdFGysE+81O0+tpkYz+8F59jJfCfLLhpTXnG5IPZlkVchxZAyvsa5+fKxhqR9 U9XEM0A934oVajwpWQr8wenU9YxoNodP8zt0Aofk1kZS7I++JLWdCfrMxbk1Cmf/QiZSxrQ0fE3Yp Ys5ypxP4lbRlL+JGohX3NZBRA4OqhTU3te1wQemO2BN1Ims6ZXvlYmw5czJPPIxYeSdQhPSmoR8Zk is2y0ekbAMvtaM+BSkxQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.2 #3 (Red Hat Linux)) id 1iA7hw-0001oi-1G; Tue, 17 Sep 2019 07:15:28 +0000 Received: from [213.208.157.37] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92.2 #3 (Red Hat Linux)) id 1iA7hu-0001oY-59; Tue, 17 Sep 2019 07:15:26 +0000 From: Christoph Hellwig To: corbet@lwn.net Subject: [PATCH v2] Documentation: document earlycon without options for more platforms Date: Tue, 17 Sep 2019 09:15:23 +0200 Message-Id: <20190917071523.16672-1-hch@lst.de> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: schwab@suse.de, linux-arm-kernel@lists.infradead.org, linux-doc@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org The earlycon options without arguments is supposed to work on all device tree platforms, not just arm64. Signed-off-by: Christoph Hellwig --- Changes since v1: - add comma, fix typo Documentation/admin-guide/kernel-parameters.txt | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt index 4c1971960afa..d5956c29b93b 100644 --- a/Documentation/admin-guide/kernel-parameters.txt +++ b/Documentation/admin-guide/kernel-parameters.txt @@ -977,12 +977,10 @@ earlycon= [KNL] Output early console device and options. - [ARM64] The early console is determined by the - stdout-path property in device tree's chosen node, - or determined by the ACPI SPCR table. - - [X86] When used with no options the early console is - determined by the ACPI SPCR table. + When used with no options, the early console is + determined by stdout-path property in device tree's + chosen node or the ACPI SPCR table if supported by + the platform. cdns,[,options] Start an early, polled-mode console on a Cadence