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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 52806C433F5 for ; Wed, 30 Mar 2022 14:11:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346628AbiC3OMy (ORCPT ); Wed, 30 Mar 2022 10:12:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344124AbiC3OMx (ORCPT ); Wed, 30 Mar 2022 10:12:53 -0400 X-Greylist: delayed 916 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Wed, 30 Mar 2022 07:11:07 PDT Received: from mickerik.phytec.de (mickerik.phytec.de [195.145.39.210]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9A52811CF6A for ; Wed, 30 Mar 2022 07:11:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; d=phytec.de; s=a4; c=relaxed/simple; q=dns/txt; i=@phytec.de; t=1648648547; x=1651240547; h=From:Sender:Reply-To:Subject:Date:Message-ID:To:CC:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=PdBqd/DBbSKFTM+e0wpYe4vp4KlWFxTw6lHBjS1gXmg=; b=gMldqlETprNSg9ME83L3vRo9O44Z5nL0Zi1Zg1E/8PR/uwuv4AMzCAi9YIDAs9Oo jllxlbD6H6A88TQN3jn+d+IvG8w7wFPjRkFfI48xg05saZNLOfWYwL7pd3kHAgkv 1HCD4aktlwb9NC60U36XMXZNEmuW6KQ991DfVntpDC0=; X-AuditID: c39127d2-9112070000002a63-03-62446162c7a9 Received: from berlix.phytec.de (Berlix.phytec.de [172.16.0.117]) (using TLS with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mickerik.phytec.de (PHYTEC Mail Gateway) with SMTP id E1.41.10851.26164426; Wed, 30 Mar 2022 15:55:47 +0200 (CEST) Received: from [172.16.5.104] (172.16.0.116) by Berlix.phytec.de (172.16.0.117) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.18; Wed, 30 Mar 2022 15:55:46 +0200 Message-ID: <73a4a16b-193a-3075-61e9-82bcf21fc7d2@phytec.de> Date: Wed, 30 Mar 2022 15:55:45 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.7.0 Subject: Re: [RFC] arm64: dts: ti: introduce a minimal am642 device tree Content-Language: en-US To: Bryan Brattlof , Nishanth Menon , Vignesh Raghavendra , Tero Kristo CC: Rob Herring , Krzysztof Kozlowski , , , References: <20220321155417.13267-1-bb@ti.com> From: Wadim Egorov In-Reply-To: <20220321155417.13267-1-bb@ti.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [172.16.0.116] X-ClientProxiedBy: Berlix.phytec.de (172.16.0.117) To Berlix.phytec.de (172.16.0.117) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpgkeLIzCtJLcpLzFFi42JZI8BQqpuc6JJkcGUXq8XcNwdYLeYfOcdq sfzzbHaLl7PusVlsenyN1eLyrjlsFm9+nGWyaN17hN3i/9kP7A6cHptWdbJ5bF5S73H8xnYm j8+b5AJYorhsUlJzMstSi/TtErgyPp9qYyt4x1Lx78taxgbGj8xdjJwcEgImEo8uvWXsYuTi EBJYziTx5fIZJgjnAaNE6/tGVpAqXgEbibkX97KB2CwCqhIbfnWyQ8QFJU7OfMICYosKREgs 2zUVzBYW8JDoO98PVsMsIC5x68l8JhBbRKCFUeLXyRKQBcwCOxglTv1cBdYgJKAn8aylgRHE ZhNQl7iz4RvYYk4BfYm7k98wQgyykFj85iDUUHmJ7W/nMEP0yku8uLScBeIdBYm5vydCvRYu 8fbUb+YJjMKzkNw6C8lNs5CMnYVk7AJGllWMQrmZydmpRZnZegUZlSWpyXopqZsYgbF0eKL6 pR2MfXM8DjEycTAeYpTgYFYS4f140DlJiDclsbIqtSg/vqg0J7X4EKM0B4uSOO/9HqZEIYH0 xJLU7NTUgtQimCwTB6dUA2OI/NK7k2MEGjOWzkqYsHrtT4a98a4GZ3YE/D1eMX39/R1ua5x/ 7fi4/V3HLOPHvFKKNTfjT10p3G6y+9L6TxUn+kJWBy2VlmxqOrV7t1vx852nrKM8o566dp87 y5f08VXbmktWjHJa37+t+7aVe3l7VtOm/sSZ6TudCjk3Hs9r6pSsipGufCutxFKckWioxVxU nAgAGLUOYZMCAAA= Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Bryan, > +/* (optional) for console */ > +&main_uart0 { > + pinctrl-names = "default"; > + pinctrl-0 = <&main_uart0_pins_default>; > +}; > + > +/* reserved for firmware */ > +&main_uart1 { > + status = "reserved"; > +}; k3-image-gen says UART0 is used as a debug interface. See https://git.ti.com/cgit/k3-image-gen/k3-image-gen/tree/soc/am64x/evm/board-cfg.c#n81 So it seems that you can enable uart1 here. But people may run into a conflict with uart0 and k3-image-gen compiled with ENABLE_TRACE=1. If I am wrong, can you please clarify why you mark uart1 as reserved. Regards, Wadim