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=-7.4 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, NICE_REPLY_A,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 3E167C4320E for ; Fri, 30 Jul 2021 17:21:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1F83B60F48 for ; Fri, 30 Jul 2021 17:21:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230231AbhG3RVk (ORCPT ); Fri, 30 Jul 2021 13:21:40 -0400 Received: from smtp-relay-canonical-0.canonical.com ([185.125.188.120]:56114 "EHLO smtp-relay-canonical-0.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230199AbhG3RVj (ORCPT ); Fri, 30 Jul 2021 13:21:39 -0400 Received: from mail-ed1-f70.google.com (mail-ed1-f70.google.com [209.85.208.70]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by smtp-relay-canonical-0.canonical.com (Postfix) with ESMTPS id 5D5CE3F23D for ; Fri, 30 Jul 2021 17:21:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=canonical.com; s=20210705; t=1627665693; bh=o5z17HicOMnibSKxbfutUtdmQTlkkNRFgUGIEJq9A5o=; h=From:To:Cc:References:Subject:Message-ID:Date:MIME-Version: In-Reply-To:Content-Type; b=iP1hWkWZT5MwdLvttmMex0l/IDza+w9yJmXaClovbGuDZQk3A2vKh1UBx7N6XEXUf GNXXL8D5F3rXZ5Gk+bybOiO4/AKiZ7BIjrf5nXR6f/srdiMQJrjD9ug4gTS6YHKUel ZAj8ig1/r+6/u6DxOfF5AWYwJ7EZ2kdNKbLo5orIKO84lDxlBO6O/uitwevsCqDyXt KSvAX6pY3v035Z1khVp0+xT81wAuBHXccX256pOfkSlKBKQItACijOQLvezemEmR2e acouAcnqVlz5aWFP0O0Kz/JaVgqa2l5eApzLQ07eyR6uNpREj44eMVSq34ifNmACXo xIKWVdmtXeorQ== Received: by mail-ed1-f70.google.com with SMTP id c20-20020a0564021014b029039994f9cab9so3479955edu.22 for ; Fri, 30 Jul 2021 10:21:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:references:subject:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=o5z17HicOMnibSKxbfutUtdmQTlkkNRFgUGIEJq9A5o=; b=t+a6r9pKjfnq03Y1lJkpxaWEgFJLbM5O84A3eI23Ya+cYmRbxKekSom/3neX77f01T 252S+d/v0itEF9FBBBGaVXWN4iFPfl4Iqdymucedk8lgyOFnT9n+krx11wzc6o6FRVR4 QHyyvoaAuKTsPJ8Nf6Ex5/Va7JPG4Kj4Kv9u6iO6X5p3WB/jJtO+xOnLnFdmmms9i096 JblWwiYMk2DKXh+IazcyyjG53OoJwGYrpMBImiGm3VLHfwiikYXvgIm2Lc4NVm4jNifp TjfA4aZAMgW/DQfSDHXC/3VQ7g7n/3wil61Ivce31zeV+M8Q0x+lJhMrAHtU3mn7dCbU i9ww== X-Gm-Message-State: AOAM531hlxbNbm3hWNrOjQ9BiFY2aHD4NQKOkc2sn8aSyxxBXniE8v6s 60bRxy0foVxboqXyun++7cGwLDVzYL2nzMtEZZx99ASe477Hq3eevS3wtTILqf5ZeSS72MqZMdd Ym5XGzt6F0Be7RZT16IodCehKKzF+41x5P7W1DsC62g== X-Received: by 2002:a17:907:724b:: with SMTP id ds11mr3758107ejc.192.1627665692502; Fri, 30 Jul 2021 10:21:32 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzFiKJlif1uhqb84VdmehIjJr5DEUQdSGnnvL110bm0Y0Y4Awj/aQgY4XpZWPb/ITBePmMBnw== X-Received: by 2002:a17:907:724b:: with SMTP id ds11mr3758080ejc.192.1627665692316; Fri, 30 Jul 2021 10:21:32 -0700 (PDT) Received: from [192.168.8.102] ([86.32.47.9]) by smtp.gmail.com with ESMTPSA id p16sm944758eds.73.2021.07.30.10.21.30 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 30 Jul 2021 10:21:31 -0700 (PDT) From: Krzysztof Kozlowski To: Sam Protsenko , Sylwester Nawrocki , Chanwoo Choi , Linus Walleij , Tomasz Figa Cc: Rob Herring , Stephen Boyd , Michael Turquette , Jiri Slaby , Greg Kroah-Hartman , Charles Keepax , Ryu Euiyoul , Tom Gall , Sumit Semwal , John Stultz , Amit Pundir , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-clk@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-serial@vger.kernel.org References: <20210730144922.29111-1-semen.protsenko@linaro.org> <5e35b0a7-13aa-3c62-ca49-14af2fcb2a08@canonical.com> Subject: Re: [PATCH 00/12] Add minimal support for Exynos850 SoC Message-ID: Date: Fri, 30 Jul 2021 19:21:29 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 MIME-Version: 1.0 In-Reply-To: <5e35b0a7-13aa-3c62-ca49-14af2fcb2a08@canonical.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 30/07/2021 17:18, Krzysztof Kozlowski wrote: > On 30/07/2021 16:49, Sam Protsenko wrote: >> This patch series adds initial platform support for Samsung Exynos850 >> SoC [1]. With this patchset it's possible to run the kernel with BusyBox >> rootfs as a RAM disk. More advanced platform support (like MMC driver >> additions) will be added later. The idea is to keep the first submission >> minimal to ease the review, and then build up on top of that. >> >> [1] https://www.samsung.com/semiconductor/minisite/exynos/products/mobileprocessor/exynos-850/ >> > > Great work! > > What's the SoC revision number (should be accessible via > /sys/bus/soc/devices/soc0/)? Recent wrap in numbering of Exynos chips > might bring confusion... Judging by vendor's sources it is quite confusing. It looks mostly like Exynos3830 but in few other cases it uses Exynos9 compatibles (Exynos9, Exynos9820). Only in few places there is Exynos850. Marketing department made it so confusing... The revision embedded in SoC would be very interesting. Anyway, judging by current versioning, there is a risk Samsung will come with a new chipset name conflicting with existing ones. It already overflowed. It's even worse with a thingy called "Exynos9 auto" which hides numbering even more. Best regards, Krzysztof