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 B4DBEC43214 for ; Fri, 30 Jul 2021 17:21:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 937A160F48 for ; Fri, 30 Jul 2021 17:21:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229738AbhG3RVj (ORCPT ); Fri, 30 Jul 2021 13:21:39 -0400 Received: from smtp-relay-canonical-0.canonical.com ([185.125.188.120]:56108 "EHLO smtp-relay-canonical-0.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230203AbhG3RVj (ORCPT ); Fri, 30 Jul 2021 13:21:39 -0400 Received: from mail-ej1-f71.google.com (mail-ej1-f71.google.com [209.85.218.71]) (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 4DAF43F232 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-ej1-f71.google.com with SMTP id kf3-20020a17090776c3b0290536d9b62eb6so3346463ejc.2 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=jmlw9H/lVDxf7lHb1KapLKddRIilH37RVu4pZXu2C6Nvwms/iDSSfm9C/vWkkcHK1/ Y+Zluof+0w9LH0Dfc/2l+Ldj49VI4i46StEagJcz2u2F5+9DLzEbDY3BGyTRTmOyUFzh xDGWUcMqY7ZSoWMZrF5T5tEWB0xJy/TNMK77Lmpx2sFVJ2MUpIgX9Ay342aStjgtPnBS AKY7Lnj+tDhEiTaIZUN7Y/vNdiwiVa7CdygHIR6X23Y5x5F5rjvm9HmN1Zo/2CDK4POq HA2Lh25BfMu1QuVpGkIBzYx+i8EMqLG1BkfSDOPM43Hj/oDtjKGHBRBMD/qCHxvLXWsk BRTQ== X-Gm-Message-State: AOAM532gaUR8S0NIWmrrTW6F4fkgh099JgHyuQy+p61wVrU7ncK6I1uu OoUSAcZ1GWO/DsAQG2eWnHoAnzGSWFS9tcagbdnVnkKGvjcDUxC/SK14Zb2Vc6mTI3Hf6N6MHjr lLi9xiFDuDL0Am9j7SR0cVZ2LgHIZw484WCFD/tk= X-Received: by 2002:a17:907:724b:: with SMTP id ds11mr3758108ejc.192.1627665692503; 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-gpio@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 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=-6.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 453A9C4338F for ; Fri, 30 Jul 2021 17:23:43 +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 17E4B60F46 for ; Fri, 30 Jul 2021 17:23:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 17E4B60F46 Authentication-Results: mail.kernel.org; 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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-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210730_102135_522591_F90E8DE3 X-CRM114-Status: GOOD ( 18.41 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel