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authorWarner Losh <imp@FreeBSD.org>2014-02-27 19:39:44 +0000
committerWarner Losh <imp@FreeBSD.org>2014-02-27 19:39:44 +0000
commit0d4a4b13019e01c1eab30b74c983040450010b81 (patch)
treeff6e99cffa59c3e85a311d8dd06e6f6dab4988b2 /Bindings/mmc/nvidia,tegra20-sdhci.txt
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Bring in Ian Campbell's pruned dts repo.vendor/device-tree/ianc-efa963ec
From git://xenbits.xen.org/people/ianc/device-tree-rebasing.git commit efa963ec806366c9628dfd1269316bb93b7ecb15 Merge: a72ba09 459c249 Author: Ian Campbell <ian.campbell@citrix.com> Date: Wed Feb 26 08:39:16 2014 +0000 Merge tag 'v3.14-rc4-dts' Linux 3.14-rc4
Notes
Notes: svn path=/vendor/device-tree/; revision=262569 svn path=/vendor/device-tree/ianc-efa963ec/; revision=262576; tag=vendor/device-tree/ianc-efa963ec
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+* NVIDIA Tegra Secure Digital Host Controller
+
+This controller on Tegra family SoCs provides an interface for MMC, SD,
+and SDIO types of memory cards.
+
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the sdhci-tegra driver.
+
+Required properties:
+- compatible : Should be "nvidia,<chip>-sdhci"
+- clocks : Must contain one entry, for the module clock.
+ See ../clocks/clock-bindings.txt for details.
+- resets : Must contain an entry for each entry in reset-names.
+ See ../reset/reset.txt for details.
+- reset-names : Must include the following entries:
+ - sdhci
+
+Optional properties:
+- power-gpios : Specify GPIOs for power control
+
+Example:
+
+sdhci@c8000200 {
+ compatible = "nvidia,tegra20-sdhci";
+ reg = <0xc8000200 0x200>;
+ interrupts = <47>;
+ clocks = <&tegra_car 14>;
+ resets = <&tegra_car 14>;
+ reset-names = "sdhci";
+ cd-gpios = <&gpio 69 0>; /* gpio PI5 */
+ wp-gpios = <&gpio 57 0>; /* gpio PH1 */
+ power-gpios = <&gpio 155 0>; /* gpio PT3 */
+ bus-width = <8>;
+};