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=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 E803AC4CECE for ; Mon, 16 Sep 2019 12:19:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BDE79214AF for ; Mon, 16 Sep 2019 12:19:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=sifive.com header.i=@sifive.com header.b="Rl9N/b/b" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732417AbfIPMTD (ORCPT ); Mon, 16 Sep 2019 08:19:03 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:41780 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727810AbfIPMTC (ORCPT ); Mon, 16 Sep 2019 08:19:02 -0400 Received: by mail-wr1-f66.google.com with SMTP id h7so37626954wrw.8 for ; Mon, 16 Sep 2019 05:18:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=date:from:to:cc:subject:in-reply-to:message-id:references :user-agent:mime-version; bh=NDGvPfQ28itbhitNrIVDuhKKTVjuBYonvfjlM/t21wU=; b=Rl9N/b/bMFTs4X2mlxsYJ/i0nofx3+KjiSTSMKqDk7k43o9uPTcRGGKaBLYSGkVa1B voTuhEb7qmNSFPUdCT5O24IUW6a4z9+rjv+UCr+DqKMn/VkEIMZfSm/4azEaAAb/kE6R Yw2GGNiKSrVNlYy9kP/IOPD6PDxRvn1R3SIIzsaDC2JZLjBfhiWBauUxAVAIgcGjf3bt j0+9LP4wrZBuEwrsf8L9QDYddK6psSURIMxWN4x8tegJWReSC2PIgKK9tUTwyY2QcxP7 AZUt3EanN9GfsJ65EBgauTJoymGZWhyJwd6D7Dft5+az/R2WVWfLaG371HEBh9wWjE1Y 1bZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:in-reply-to:message-id :references:user-agent:mime-version; bh=NDGvPfQ28itbhitNrIVDuhKKTVjuBYonvfjlM/t21wU=; b=n2fcZRrzVeNrpON/mgSD2jI5FfJOGIUXMdvEsMZZoe6dos2iq9/zKdY1Ty6hnF5ESc SbI1kIhrPmQ/3VdqMSdGLlwN5e20LrZjrMcmJI2kNY0aPBzh7KnHNljO7Yj8u1PEUlf+ +y2zGC4vf8IM0N9MWRH74FHgKhothWiV3NSvzVVwit4rTMUGIddjLupmqXAOXwUN0X4m cyGVpCBO8AG30oUyEIB0Hw0VezXVipaGa2MOxeXVhbdblVulKhSTWfXgnv9ZL8avnWFE 3ZYYfwiXMN5Z6T8dnMVwGg8zDbD6UZ1R+fdcQgK1Dglvat7nfKvugTa/TFTIfn5TA/Qk oTFQ== X-Gm-Message-State: APjAAAUBxkwZA9d9dcxrJ1n0yDpL+mkKSvWgw+05JddwL56QGt0aNupL 28/WhYqHjgHR9YdnyqT3KdoPZ62x294= X-Google-Smtp-Source: APXvYqy7wvBYXW5sQMm779PclJz5ZIXC7oobUxc9rjxX7S6QW5vk4bewbnRrdKgZb166GugimeCvjw== X-Received: by 2002:a05:6000:11cb:: with SMTP id i11mr1328338wrx.171.1568636339222; Mon, 16 Sep 2019 05:18:59 -0700 (PDT) Received: from localhost ([195.200.173.126]) by smtp.gmail.com with ESMTPSA id m62sm17234528wmm.35.2019.09.16.05.18.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Sep 2019 05:18:58 -0700 (PDT) Date: Mon, 16 Sep 2019 05:18:57 -0700 (PDT) From: Paul Walmsley X-X-Sender: paulw@viisi.sifive.com To: Andreas Schwab cc: Christoph Hellwig , gregkh@linuxfoundation.org, jslaby@suse.com, linux-serial@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] serial/sifive: select SERIAL_EARLYCON In-Reply-To: Message-ID: References: <20190910055923.28384-1-hch@lst.de> <20190910070503.GA31743@lst.de> User-Agent: Alpine 2.21.9999 (DEB 301 2018-08-15) MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="8323329-1252070807-1568636337=:9917" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This message is in MIME format. The first part should be readable text, while the remaining parts are likely unreadable without MIME-aware tools. --8323329-1252070807-1568636337=:9917 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE On Mon, 16 Sep 2019, Andreas Schwab wrote: > On Sep 16 2019, Paul Walmsley wrote: >=20 > > On Tue, 10 Sep 2019, Andreas Schwab wrote: > > > >> On Sep 10 2019, Christoph Hellwig wrote: > >>=20 > >> > On Tue, Sep 10, 2019 at 08:57:37AM +0200, Andreas Schwab wrote: > >> >> On Sep 10 2019, Christoph Hellwig wrote: > >> >>=20 > >> >> > The sifive serial driver implements earlycon support, > >> >>=20 > >> >> It should probably be documented in admin-guide/kernel-parameters.t= xt. > >> > > >> > How so? W=D1=96th OF and a stdout path you just set earlycon on the > >> > command line without any arguments and it will be found. > >>=20 > >> Doesn't work for me. > >>=20 > >> [ 0.000000] Malformed early option 'earlycon' > > > > Try: > > > > earlycon=3Dsifive,0x10010000 >=20 > That's not what Christoph wants. I support Christoph's plan to add generic implicit earlycon support. In the meantime, once v5.4-rc1 is released, I'll send a patch to add a=20 sifive driver section to the earlycon documentation in=20 admin-guide/kernel-parameters.txt. Thanks for the (earlier) suggestion. - Paul --8323329-1252070807-1568636337=:9917--