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     1 * Imagination specific extensions to the Synopsys Designware Mobile Storage
    2   Host Controller
    3 
    4 The Synopsys designware mobile storage host controller is used to interface
    5 a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
    6 differences between the core Synopsys dw mshc controller properties described
    7 by synopsys-dw-mshc.txt and the properties used by the Imagination specific
    8 extensions to the Synopsys Designware Mobile Storage Host Controller.
    9 
   10 Required Properties:
   11 
   12 * compatible: should be
   13         - "img,pistachio-dw-mshc": for Pistachio SoCs
   14 
   15 Example:
   16 
   17         mmc@18142000 {
   18                 compatible = "img,pistachio-dw-mshc";
   19                 reg = <0x18142000 0x400>;
   20                 interrupts = <GIC_SHARED 39 IRQ_TYPE_LEVEL_HIGH>;
   21 
   22                 clocks = <&system_clk>, <&sdhost_clk>;
   23                 clock-names = "biu", "ciu";
   24 
   25                 fifo-depth = <0x20>;
   26                 bus-width = <4>;
   27                 disable-wp;
   28         };
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