Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / mmc / k3-dw-mshc.txt

diff --git a/kernel/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt b/kernel/Documentation/devicetree/bindings/mmc/k3-dw-mshc.txt
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+* Hisilicon specific extensions to the Synopsys Designware Mobile
+  Storage Host Controller
+
+Read synopsys-dw-mshc.txt for more details
+
+The Synopsys designware mobile storage host controller is used to interface
+a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
+differences between the core Synopsys dw mshc controller properties described
+by synopsys-dw-mshc.txt and the properties used by the Hisilicon specific
+extensions to the Synopsys Designware Mobile Storage Host Controller.
+
+Required Properties:
+
+* compatible: should be one of the following.
+  - "hisilicon,hi4511-dw-mshc": for controllers with hi4511 specific extensions.
+
+Example:
+
+       /* for Hi3620 */
+
+       /* SoC portion */
+       dwmmc_0: dwmmc0@fcd03000 {
+               compatible = "hisilicon,hi4511-dw-mshc";
+               reg = <0xfcd03000 0x1000>;
+               interrupts = <0 16 4>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               clocks = <&mmc_clock HI3620_SD_CIUCLK>, <&clock HI3620_DDRC_PER_CLK>;
+               clock-names = "ciu", "biu";
+       };
+
+       /* Board portion */
+       dwmmc0@fcd03000 {
+               num-slots = <1>;
+               vmmc-supply = <&ldo12>;
+               fifo-depth = <0x100>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&sd_pmx_pins &sd_cfg_func1 &sd_cfg_func2>;
+               bus-width = <4>;
+               disable-wp;
+               cd-gpios = <&gpio10 3 0>;
+               cap-mmc-highspeed;
+               cap-sd-highspeed;
+       };