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[209.132.180.67]) by mx.google.com with ESMTP id e24-v6si3198146pgj.287.2018.11.08.02.45.12; Thu, 08 Nov 2018 02:45:12 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@baylibre-com.20150623.gappssmtp.com header.s=20150623 header.b=LfGhrjBg; spf=pass (google.com: best guess record for domain of devicetree-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726929AbeKHUTp (ORCPT + 6 others); Thu, 8 Nov 2018 15:19:45 -0500 Received: from mail-wr1-f66.google.com ([209.85.221.66]:33771 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726906AbeKHUTp (ORCPT ); Thu, 8 Nov 2018 15:19:45 -0500 Received: by mail-wr1-f66.google.com with SMTP id u9-v6so10358905wrr.0 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=l2ixMOTpN5T93mygaFQcpfjLYMx41ekzWAF7OBQrXJYtjeiStsAKa8gxUu+eRP35K1 74/w4J9BjuAA+QTl8nJ+SM7tmPW/GC8Jxvpv+fRWXCjO8oE2/wqI0NLxo5LL9/9H90HZ O1s5zPrktnIggWBc495AOsKWDDdcOa7MFcYsNUv5pw4D1PxcwLKaEQDk0kWRalYE7+Bl bP0Z4RygPkl9gIz/g2jsFkHAv+Ytx+u91BPC/di0R9NfSTXoXYRJbV7Xogr0oxdp1o9A jAobD2rtlP35uK9zvrxJ2sEVksTcdxTTV27jCl2hWOGnzapT5SxZ/xaepSgxc1cLb5eY iWoA== X-Gm-Message-State: AGRZ1gKjnaFxXwNaD4Gln/eETKja/J0uM1ODFc1Yggp0NHoZ9FqsoF7w WIJENcnlCIZLG2Wc/WXex9S6tHoPCOM= 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 Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@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(+) -- 2.19.1 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; }; };