From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergio Prado Subject: [PATCH 1/2] dt-bindings: mmc: add DT binding for S3C24XX MMC/SD/SDIO controller Date: Thu, 1 Dec 2016 22:14:24 -0200 Message-ID: <1480637665-6325-2-git-send-email-sergio.prado@e-labworks.com> References: <1480637665-6325-1-git-send-email-sergio.prado@e-labworks.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1480637665-6325-1-git-send-email-sergio.prado@e-labworks.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org 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 List-Id: linux-mmc@vger.kernel.org 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. Signed-off-by: Sergio Prado --- .../devicetree/bindings/mmc/samsung,s3cmci.txt | 38 ++++++++++++++++++++++ 1 file changed, 38 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..3f044076e69a --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/samsung,s3cmci.txt @@ -0,0 +1,38 @@ +* 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 +- 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". + +Example: + sdi: sdi@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>; + }; + + Note: This example shows both SoC specific and board specific properties + in a single device node. The properties can be actually be separated + into SoC specific node and board specific node. -- 1.9.1