Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933459AbdCaXvW (ORCPT ); Fri, 31 Mar 2017 19:51:22 -0400 Received: from mail-qt0-f196.google.com ([209.85.216.196]:35279 "EHLO mail-qt0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932868AbdCaXvT (ORCPT ); Fri, 31 Mar 2017 19:51:19 -0400 From: Sergio Prado To: ulf.hansson@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, ben-linux@fluff.org, linux-arm-kernel@lists.infradead.org Cc: Sergio Prado Subject: [PATCH v6 1/2] dt-bindings: mmc: add DT binding for S3C24XX MMC/SD/SDIO controller Date: Fri, 31 Mar 2017 20:50:55 -0300 Message-Id: <1491004256-13969-2-git-send-email-sergio.prado@e-labworks.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1491004256-13969-1-git-send-email-sergio.prado@e-labworks.com> References: <1491004256-13969-1-git-send-email-sergio.prado@e-labworks.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2275 Lines: 61 Adds the device tree bindings description for Samsung S3C24XX MMC/SD/SDIO controller, used as a connectivity interface with external MMC, SD and SDIO storage mediums. Acked-by: Rob Herring Signed-off-by: Sergio Prado --- .../devicetree/bindings/mmc/samsung,s3cmci.txt | 42 ++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt diff --git a/Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt b/Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt new file mode 100644 index 000000000000..5f68feb9f9d6 --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt @@ -0,0 +1,42 @@ +* Samsung's S3C24XX MMC/SD/SDIO controller device tree bindings + +Samsung's S3C24XX MMC/SD/SDIO controller is used as a connectivity interface +with external MMC, SD and SDIO storage mediums. + +This file documents differences between the core mmc properties described by +mmc.txt and the properties used by the Samsung S3C24XX MMC/SD/SDIO controller +implementation. + +Required SoC Specific Properties: +- compatible: should be one of the following + - "samsung,s3c2410-sdi": for controllers compatible with s3c2410 + - "samsung,s3c2412-sdi": for controllers compatible with s3c2412 + - "samsung,s3c2440-sdi": for controllers compatible with s3c2440 +- reg: register location and length +- interrupts: mmc controller interrupt +- clocks: Should reference the controller clock +- clock-names: Should contain "sdi" + +Required Board Specific Properties: +- pinctrl-0: Should specify pin control groups used for this controller. +- pinctrl-names: Should contain only one value - "default". + +Optional Properties: +- bus-width: number of data lines (see mmc.txt) +- cd-gpios: gpio for card detection (see mmc.txt) +- wp-gpios: gpio for write protection (see mmc.txt) + +Example: + + mmc0: mmc@5a000000 { + compatible = "samsung,s3c2440-sdi"; + pinctrl-names = "default"; + pinctrl-0 = <&sdi_pins>; + reg = <0x5a000000 0x100000>; + interrupts = <0 0 21 3>; + clocks = <&clocks PCLK_SDI>; + clock-names = "sdi"; + bus-width = <4>; + cd-gpios = <&gpg 8 GPIO_ACTIVE_LOW>; + wp-gpios = <&gph 8 GPIO_ACTIVE_LOW>; + }; -- 1.9.1