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 01C4EC001DC for ; Wed, 19 Jul 2023 11:44:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230228AbjGSLoM (ORCPT ); Wed, 19 Jul 2023 07:44:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60158 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229824AbjGSLoK (ORCPT ); Wed, 19 Jul 2023 07:44:10 -0400 Received: from cpanel.siel.si (cpanel.siel.si [46.19.9.99]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35FDFD3; Wed, 19 Jul 2023 04:44:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=norik.com; s=default; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=25qOFGwl4u5Fl3P3TnP8f7cSLj7dX/d3+BVvY9wImlA=; b=qzlp175sRYu6+KoahiLjhlbjNe wVUM9JyTvLBZT4kgY5LOPCpYioW2Ah5gY6Gw4xgzHjKsDA/b8Ec77KC2DdMRY52EHnWda4OIvz5yR mAMzNq55MkVEnamyttJOVukjFQuoUhCK2/+H+0B7Hhx2reqqHyUlKgxYCzDorM7h4+zaS5fJ0x3LK oZJyNuuaBpJCleKSCIQ53t1Y8thhOYBTqOzxs22RSSOAoExXs4H20M80GQ3I6Boy6gKfMa04mJEaZ IrP1D6zUuR2GwBMdTQzPwDRjNxadoYG6KkCwzAxRtQyONJ3Ujg+Kss6m/7Ims2v07hZY7uc+YWCW2 eZZBosTA==; Received: from 89-212-21-243.static.t-2.net ([89.212.21.243]:56038 helo=localhost.localdomain) by cpanel.siel.si with esmtpsa (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.96) (envelope-from ) id 1qM5b1-00DcDD-29; Wed, 19 Jul 2023 13:43:55 +0200 From: Andrej Picej To: robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, linux-imx@nxp.com Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, S.Riedmueller@phytec.de, S.Mueller-Klieser@phytec.de, upstream@phytec.de Subject: [PATCH v2 3/3] ARM: dts: imx6: phycore: Rely on PMIC reboot/reset handler Date: Wed, 19 Jul 2023 13:43:28 +0200 Message-Id: <20230719114328.2239818-3-andrej.picej@norik.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230719114328.2239818-1-andrej.picej@norik.com> References: <20230719114328.2239818-1-andrej.picej@norik.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - cpanel.siel.si X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - norik.com X-Get-Message-Sender-Via: cpanel.siel.si: authenticated_id: andrej.picej@norik.com X-Authenticated-Sender: cpanel.siel.si: andrej.picej@norik.com X-Source: X-Source-Args: X-Source-Dir: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Due to the missing signal connection between i.MX6 WDOG_B pin and the PMICs external reset, the internal i.MX6 watchdog is not able to reset the phyCORE i.MX6 SoM properly. Thus disable the internal i.MX6 watchdog to prevent unexpected PMIC settings after reset. NOTE: This patch should not be backported as it might break existing uses and fixes in bootloaders. Signed-off-by: Andrej Picej --- Changes in v2: - new patch - i.MX6 phyCOREs have the same problem as phyFLEX devices. --- arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi index 28a805384668..86b4269e0e01 100644 --- a/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-phytec-phycore-som.dtsi @@ -309,3 +309,11 @@ MX6QDL_PAD_SD4_DAT7__SD4_DATA7 0x17059 >; }; }; + +&wdog1 { + /* + * Rely on PMIC reboot handler. Internal i.MX6 watchdog, that is also + * used for reboot, does not reset all external PMIC voltages on reset. + */ + status = "disabled"; +}; -- 2.25.1