zx-dw-mshc.txt

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    1 * ZTE 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 ZTE specific
    8 extensions to the Synopsys Designware Mobile Storage Host Controller.
    9 
   10 Required Properties:
   11 
   12 * compatible: should be
   13         - "zte,zx296718-dw-mshc": for ZX SoCs
   14 
   15 Example:
   16 
   17         mmc1: mmc@1110000 {
   18                 compatible = "zte,zx296718-dw-mshc";
   19                 reg = <0x01110000 0x1000>;
   20                 interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
   21                 fifo-depth = <32>;
   22                 data-addr = <0x200>;
   23                 fifo-watermark-aligned;
   24                 bus-width = <4>;
   25                 clock-frequency = <50000000>;
   26                 clocks = <&topcrm SD0_AHB>, <&topcrm SD0_WCLK>;
   27                 clock-names = "biu", "ciu";
   28                 max-frequency = <50000000>;
   29                 cap-sdio-irq;
   30                 cap-sd-highspeed;
   31         };

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