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=-2.7 required=3.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED,DKIM_VALID,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 D884DC10F14 for ; Sat, 13 Apr 2019 16:36:48 +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 A71BF21721 for ; Sat, 13 Apr 2019 16:36:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="elZLtUQH"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=googlemail.com header.i=@googlemail.com header.b="EqmMlP68" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A71BF21721 Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=googlemail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-amlogic-bounces+linux-amlogic=archiver.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=f8G3k0YN99jESapWhMilWEQHs94EcUR+k5U/hN/g4nU=; b=elZLtUQHlQJkdr yvF2AoT3OKv2wTq/2BpRqGkPZy6cdZyPz2KoKI0JyTOBjk/qMk7QqkqmsRXTmJ9m9O2ZF0ppq16M7 KaSjqS0qtQ9jjXlbJiVOZ1SwNYdXpYjT3lRnNkknEX0WFUXBMDTn4t8DnNeXgYWnSQjrKSOalyrN1 z4OqjeHr1vPGu8gveDVWcHF/MRfWbMMMgIMCsxKC7DyHi7pmIyTXj+QUzSeSZUSlo3SKAfICHJ5JU 6DOcYND/T3J3b+CgpkGXn1FB6c1g/4BaoQYWlVldKWpOM/RH2i98IJecX5PfCdiii1xHKTySw5qAA uwDAjnBEV2Kf/qb0tXfw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hFLdw-0001B6-QP; Sat, 13 Apr 2019 16:36:40 +0000 Received: from mail-wr1-x443.google.com ([2a00:1450:4864:20::443]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hFLdu-0001AC-5w; Sat, 13 Apr 2019 16:36:39 +0000 Received: by mail-wr1-x443.google.com with SMTP id s15so15895472wra.12; Sat, 13 Apr 2019 09:36:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=eUlrZNmzEIhs7/anF1YSLhB9mWOmJ5DjO2LhLTU+ow8=; b=EqmMlP682lgyqRc3Nd3Gtx0Y58CU2naPNN0Y2efrH4jKu6osJ4o+gYv+0DQlXHXERG X3jijZ9lTNSYM5V4YqyHTvXPHRIzep0rlQJwFFN7hRadYhOBwMr5crHydTC7p+AucD5v tBnvAtn0GuYrrVUL8vhlwZwPY3vk3o6mUrQs20ayQJ2EP7AWmJh5JBfBmbgdwWYEZhvR 0FXyKPzgbTHxDwxn19DcRyRIOMS84QgKtG73OJaqwdgjogdp2s0iBoEZMdNQxT0Z301x uIqa68wp5UjTk+aIW79uUP1VsNdBg1ZYggi/76EWcvP8ji5tYX/UAqfFySRIdBZWEahN JM7Q== 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:subject:date:message-id:mime-version :content-transfer-encoding; bh=eUlrZNmzEIhs7/anF1YSLhB9mWOmJ5DjO2LhLTU+ow8=; b=bn8adQ4Kbm+YbWxesas8EtZTwvXz4LByI1ikmnlJFJp+HILLaO/lfBtShka1y/G2ht Dod1K+kESCc+HySn6oIY/l1rJRkcWc26NngS67OxGhwVhWJCQ4M115d6Ikc9ACqfZn2A h0JANCshsw7+FNk4zSAZrn76wrbp/+4v3qe76n22660bAAy3IAKUPF9wNXgoao3X75uR r41OYwR9COT6G0pyjJHPnDmqolbXBZ48NrBTUHYNCD4/WsEZgS3lbVV+WwEuzWMHd1Cq boT1swqW+uTDm8w/AESBlJ8yPoQCyR1mH1x9recvKai1LBvEkxmyzs/5JyAAID/RDOz5 itYw== X-Gm-Message-State: APjAAAWsE5KJO3DM665kyw7LZtHDIyhS6sGaQG7fi59EaCk4s+plXnRf O2dx379puZa5Fwlq91AKVOHGOiDg X-Google-Smtp-Source: APXvYqxMBvHoLeBzMx8VHk8xicAgEWnIX21exRLPUtQqjMRcCSFtPqruqVsddJO8tLHx6fe7/fuEUA== X-Received: by 2002:adf:f286:: with SMTP id k6mr37373261wro.137.1555173395877; Sat, 13 Apr 2019 09:36:35 -0700 (PDT) Received: from blackbox.darklights.net (p200300F133C8AD00714E418F6C82D049.dip0.t-ipconnect.de. [2003:f1:33c8:ad00:714e:418f:6c82:d049]) by smtp.googlemail.com with ESMTPSA id j3sm106200069wre.51.2019.04.13.09.36.34 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sat, 13 Apr 2019 09:36:35 -0700 (PDT) From: Martin Blumenstingl To: linux-amlogic@lists.infradead.org, khilman@baylibre.com Subject: [PATCH 0/3] Meson8b: add support for the RTC on EC-100 and Odroid-C1 Date: Sat, 13 Apr 2019 18:34:20 +0200 Message-Id: <20190413163423.15149-1-martin.blumenstingl@googlemail.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190413_093638_256970_7A855DF6 X-CRM114-Status: UNSURE ( 9.15 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Martin Blumenstingl , jianxin.pan@amlogic.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, ccaione@baylibre.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org This adds support for the RTC on the Meson8b EC-100 and Odroid-C1 boards. Example kernel log snippet while booting my EC-100: [ 5.713750] meson-rtc c8100740.rtc: setting system clock to 2019-04-13T16:21:48 UTC (1555172508) I am only 99% sure about the naming of the clock in patch 2 and 3. The public S805 datasheet from Hardkernel shows (on page 24 for example) that clk81 can use "XTAL/32khz" as clock input. That "XTAL/32khz" clock is described as a mux between 24MHz (our main XTAL) and 32kHz ("that other XTAL"). I believe that this other 32kHz XTAL is NOT the RTC32K crystal because: - schematics of the EC-100 and Odroid-C1 clearly show that the SoC input for the RTC32K clock is labeled RTC32K_XI / RTC32K_XO - GPIOAO_6 has a CLK_32KIN function (shows in EC-100 and Odroid-C1 schematics as well as the public S805 datasheet) - Always On domain PWR_CNTL0[11:10] (public S805 datasheet page 19) describes it as "Alternate 32khz input clock select from GPIO pad" Thus I believe that the naming of the RTC32K clock is correct, but I wanted to point out that I'm only 99% (instead of 100%) sure. Jianxin, please let me know if you disagree with my findings. Martin Blumenstingl (3): ARM: dts: meson: add support for the RTC ARM: dts: meson8b: ec100: enable the RTC ARM: dts: meson8b: odroid-c1: prepare support for the RTC arch/arm/boot/dts/meson.dtsi | 9 +++++++++ arch/arm/boot/dts/meson8.dtsi | 5 +++++ arch/arm/boot/dts/meson8b-ec100.dts | 14 ++++++++++++++ arch/arm/boot/dts/meson8b-odroidc1.dts | 14 ++++++++++++++ arch/arm/boot/dts/meson8b.dtsi | 5 +++++ 5 files changed, 47 insertions(+) -- 2.21.0 _______________________________________________ linux-amlogic mailing list linux-amlogic@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-amlogic