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=-9.1 required=3.0 tests=DKIMWL_WL_MED,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,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 BC7A6C32789 for ; Thu, 8 Nov 2018 10:45:13 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7BD092086C for ; Thu, 8 Nov 2018 10:45:13 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20150623.gappssmtp.com header.i=@baylibre-com.20150623.gappssmtp.com header.b="LfGhrjBg" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7BD092086C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727233AbeKHUUD (ORCPT ); Thu, 8 Nov 2018 15:20:03 -0500 Received: from mail-wr1-f68.google.com ([209.85.221.68]:39788 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726304AbeKHUTp (ORCPT ); Thu, 8 Nov 2018 15:19:45 -0500 Received: by mail-wr1-f68.google.com with SMTP id r10-v6so20688081wrv.6 for ; Thu, 08 Nov 2018 02:44:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/0smNNuQStEDVjeoyozdvGvGeLKrZskOlohutZmWEJk=; b=LfGhrjBg6DMcn4cNo7AmfB7y//7qkdqB/koH3La2fS7kJps7k5GaW/9bD9MZgbWQU7 aZvp5/sM1/WgIavguv/5jveYy/LOUVG7lPvKDH67N98K7U99evAlWGvZcsKg9lBl1NeI HW3RnL0ecd7qfFGNA0KsdJERPEScsPpx2BSS1UsllUYz8OykEo0T8nIeh1Q1zkFuKgoq 83R8PIHSIz7w3xzHdcYynfL/cW4xRHTPiSy8U5RsOO8HNjtqThKMZz7j/yyDFvGJMeqn OZRgVsWJCC+c7cSrjP737gwgkZvYuZMcf4/0BO2R9FDRe6E6/tZ5w2btPkHO89Aw+4Gq coLg== 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=/0smNNuQStEDVjeoyozdvGvGeLKrZskOlohutZmWEJk=; b=NfHGAodGkOfuqUa9jLxfNb2Zpenq5pazkMS11Djub69jhrYF2tP1dSCaP2VsweWhdN vJX5Wz9eT/IalvL5tdXqfeO3zhtnBv6IjCGaHvdid+jV+l+ATgkInPnx9y3zmQmVv+Ga 3DNMO/SWrYXEXQSysXYzcSN1ybgPBgrHxlj4u0rYHfnkt+PfvW90i+19GX+zFAkTbyv7 QRE18wxJm9bwpVdLICZKJiXw8XxStueXrQn6oQEZ5N5Kh6Yqa4kpoeX4Y4UFos7jgcSq 6ztsUL/uLUr7UjZx4IiRu0v/EZl4rYlN3ESaRR689BaeGVOHoyDUZ+u6JeDBqj5jPxPh 2FPw== X-Gm-Message-State: AGRZ1gKGAobJuAGYsI6/P3eONGCipUe6/M2Zg6MSp7XRV0ORa8VV4WrA CW2wjTvqsux1yGFQ0JjRZO/sMw== X-Google-Smtp-Source: AJdET5dEMrRepd9CuR7mCf76zp+beIvWMsXF1WL/GKf0BrOnP39UxiEfE9xSgTDWNMEc9nQD68wQMg== X-Received: by 2002:adf:84a4:: with SMTP id 33-v6mr3645430wrg.191.1541673892133; Thu, 08 Nov 2018 02:44:52 -0800 (PST) Received: from boomer.local ([90.63.244.31]) by smtp.googlemail.com with ESMTPSA id o130-v6sm5884800wmd.11.2018.11.08.02.44.51 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 08 Nov 2018 02:44:51 -0800 (PST) From: Jerome Brunet To: Kevin Hilman , Carlo Caione Cc: Jerome Brunet , devicetree@vger.kernel.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/4] arm64: dts: meson: disable pad bias for mmc pinmuxes Date: Thu, 8 Nov 2018 11:44:24 +0100 Message-Id: <20181108104426.1877-3-jbrunet@baylibre.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181108104426.1877-1-jbrunet@baylibre.com> References: <20181108104426.1877-1-jbrunet@baylibre.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In some cases (such as a boot from SPI) the bootloader or the ROM code may leave a bias pull-down on the mmc pins. If so the MMC will fail during the initialisation. Explicitly disabling the pinmux solves the problem. Signed-off-by: Jerome Brunet --- arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 2 ++ arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi | 4 ++++ arch/arm64/boot/dts/amlogic/meson-gxl.dtsi | 4 ++++ 3 files changed, 10 insertions(+) diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi index e86f5f721f8f..bc427b9d3e13 100644 --- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi @@ -273,6 +273,7 @@ "emmc_cmd", "emmc_ds"; function = "emmc"; + bias-disable; }; }; @@ -503,6 +504,7 @@ "sdio_cmd", "sdio_clk"; function = "sdio"; + bias-disable; }; }; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi index 1cb8e7e0d0da..32ef82321340 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi @@ -363,6 +363,7 @@ "emmc_cmd", "emmc_clk"; function = "emmc"; + bias-disable; }; }; @@ -370,6 +371,7 @@ mux { groups = "emmc_ds"; function = "emmc"; + bias-disable; }; }; @@ -416,6 +418,7 @@ "sdcard_cmd", "sdcard_clk"; function = "sdcard"; + bias-disable; }; }; @@ -436,6 +439,7 @@ "sdio_cmd", "sdio_clk"; function = "sdio"; + bias-disable; }; }; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi index 7cfee40d89e9..cfeec5579726 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-gxl.dtsi @@ -310,6 +310,7 @@ "emmc_cmd", "emmc_clk"; function = "emmc"; + bias-disable; }; }; @@ -317,6 +318,7 @@ mux { groups = "emmc_ds"; function = "emmc"; + bias-disable; }; }; @@ -363,6 +365,7 @@ "sdcard_cmd", "sdcard_clk"; function = "sdcard"; + bias-disable; }; }; @@ -383,6 +386,7 @@ "sdio_cmd", "sdio_clk"; function = "sdio"; + bias-disable; }; }; -- 2.19.1