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authorAl Cooper <alcooperx@gmail.com>2016-06-16 19:47:17 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2016-07-25 11:34:13 +0300
commitd3b2cd0ed05ef8807922d3ce1c21a3e7e2257165 (patch)
tree7192478a596f73bf8efb137502e6e9ddbd9d6115 /Documentation/devicetree
parentd806b46e5f496a6335ebd7f8432d2533507ce9a2 (diff)
downloadlinux-d3b2cd0ed05ef8807922d3ce1c21a3e7e2257165.tar.xz
mmc: DT: sdhci-brcmstb: Add device tree bindings
The example includes the properties required to enable UHS modes. Signed-off-by: Al Cooper <alcooperx@gmail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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-rw-r--r--Documentation/devicetree/bindings/mmc/brcm,bcm7425-sdhci.txt36
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+* BROADCOM BRCMSTB/BMIPS SDHCI Controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-brcmstb driver.
+
+NOTE: The driver disables all UHS speed modes by default and depends
+on Device Tree properties to enable them for SoC/Board combinations
+that support them.
+
+Required properties:
+- compatible: "brcm,bcm7425-sdhci"
+
+Refer to clocks/clock-bindings.txt for generic clock consumer properties.
+
+Example:
+
+ sdhci@f03e0100 {
+ compatible = "brcm,bcm7425-sdhci";
+ reg = <0xf03e0000 0x100>;
+ interrupts = <0x0 0x26 0x0>;
+ sdhci,auto-cmd12;
+ clocks = <&sw_sdio>;
+ sd-uhs-sdr50;
+ sd-uhs-ddr50;
+ };
+
+ sdhci@f03e0300 {
+ non-removable;
+ bus-width = <0x8>;
+ compatible = "brcm,bcm7425-sdhci";
+ reg = <0xf03e0200 0x100>;
+ interrupts = <0x0 0x27 0x0>;
+ sdhci,auto-cmd12;
+ clocks = <sw_sdio>;
+ mmc-hs200-1_8v;
+ };