From patchwork Sun Nov 8 18:51:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Walle X-Patchwork-Id: 321302 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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=unavailable 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 81809C56202 for ; Sun, 8 Nov 2020 18:52:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 47B472076E for ; Sun, 8 Nov 2020 18:52:05 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=walle.cc header.i=@walle.cc header.b="RO01Jkhd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728783AbgKHSv1 (ORCPT ); Sun, 8 Nov 2020 13:51:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728770AbgKHSv1 (ORCPT ); Sun, 8 Nov 2020 13:51:27 -0500 Received: from ssl.serverraum.org (ssl.serverraum.org [IPv6:2a01:4f8:151:8464::1:2]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A15DEC0613CF; Sun, 8 Nov 2020 10:51:26 -0800 (PST) Received: from apollo.fritz.box (unknown [IPv6:2a02:810c:c200:2e91:6257:18ff:fec4:ca34]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by ssl.serverraum.org (Postfix) with ESMTPSA id 6B30D23E55; Sun, 8 Nov 2020 19:51:24 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=walle.cc; s=mail2016061301; t=1604861484; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=rQFbSNbCC4d8HsUblJnVNTAfkx/7jXh2YNcs4HFInSI=; b=RO01JkhdETuFgEcI3uS2fKcUslY/N+zmEN3k6N/CHKSI8XwRJ9EZRzX5DZEHAKKOWC3qdR 1mLjJjjytZXCU81x/NXwrn+28ioIHFGOOGsxYY1304Axsa1TaaMvSnKb72PKx3RPXfPoA/ QJ71NQGuh8BsuuLxdd5UgujoT9xmiS4= From: Michael Walle To: linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Michael Turquette , Stephen Boyd , Rob Herring , Shawn Guo , Li Yang , "Y . b . Lu" , Xiaowei Bao , Ashish Kumar , Vladimir Oltean , Michael Walle Subject: [PATCH v3 1/9] arm64: dts: ls1028a: fix ENETC PTP clock input Date: Sun, 8 Nov 2020 19:51:05 +0100 Message-Id: <20201108185113.31377-2-michael@walle.cc> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20201108185113.31377-1-michael@walle.cc> References: <20201108185113.31377-1-michael@walle.cc> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On the LS1028A the ENETC reference clock is connected to 4th HWA output, see Figure 7 "Clock subsystem block diagram". The PHC may run with a wrong frequency. ptp_qoriq_auto_config() will read the clock speed of the clock given in the device tree. It is likely that, on the reference board this wasn't noticed because both clocks have the same frequency. But this must not be always the case. Fix it. Fixes: 49401003e260 ("arm64: dts: fsl: ls1028a: add ENETC 1588 timer node") Signed-off-by: Michael Walle --- Changes since v2: - new patch arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index 2c831d814572..e22f29aa4658 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -961,7 +961,7 @@ ethernet@0,4 { compatible = "fsl,enetc-ptp"; reg = <0x000400 0 0 0 0>; - clocks = <&clockgen 4 0>; + clocks = <&clockgen 2 3>; little-endian; fsl,extts-fifo; };