k3-dw-mshc.txt

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    1 * Hisilicon specific extensions to the Synopsys Designware Mobile
    2   Storage Host Controller
    3 
    4 Read synopsys-dw-mshc.txt for more details
    5 
    6 The Synopsys designware mobile storage host controller is used to interface
    7 a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
    8 differences between the core Synopsys dw mshc controller properties described
    9 by synopsys-dw-mshc.txt and the properties used by the Hisilicon specific
   10 extensions to the Synopsys Designware Mobile Storage Host Controller.
   11 
   12 Required Properties:
   13 
   14 * compatible: should be one of the following.
   15   - "hisilicon,hi3660-dw-mshc": for controllers with hi3660 specific extensions.
   16   - "hisilicon,hi3670-dw-mshc", "hisilicon,hi3660-dw-mshc": for controllers
   17      with hi3670 specific extensions.
   18   - "hisilicon,hi4511-dw-mshc": for controllers with hi4511 specific extensions.
   19   - "hisilicon,hi6220-dw-mshc": for controllers with hi6220 specific extensions.
   20 
   21 Optional Properties:
   22 - hisilicon,peripheral-syscon: phandle of syscon used to control peripheral.
   23 
   24 Example:
   25 
   26         /* for Hi3620 */
   27 
   28         /* SoC portion */
   29         dwmmc_0: dwmmc0@fcd03000 {
   30                 compatible = "hisilicon,hi4511-dw-mshc";
   31                 reg = <0xfcd03000 0x1000>;
   32                 interrupts = <0 16 4>;
   33                 #address-cells = <1>;
   34                 #size-cells = <0>;
   35                 clocks = <&mmc_clock HI3620_SD_CIUCLK>, <&clock HI3620_DDRC_PER_CLK>;
   36                 clock-names = "ciu", "biu";
   37         };
   38 
   39         /* Board portion */
   40         dwmmc0@fcd03000 {
   41                 vmmc-supply = <&ldo12>;
   42                 fifo-depth = <0x100>;
   43                 pinctrl-names = "default";
   44                 pinctrl-0 = <&sd_pmx_pins &sd_cfg_func1 &sd_cfg_func2>;
   45                 bus-width = <4>;
   46                 disable-wp;
   47                 cd-gpios = <&gpio10 3 0>;
   48                 cap-mmc-highspeed;
   49                 cap-sd-highspeed;
   50         };
   51 
   52         /* for Hi6220 */
   53 
   54         dwmmc_1: dwmmc1@f723e000 {
   55                 compatible = "hisilicon,hi6220-dw-mshc";
   56                 bus-width = <0x4>;
   57                 disable-wp;
   58                 cap-sd-highspeed;
   59                 sd-uhs-sdr12;
   60                 sd-uhs-sdr25;
   61                 card-detect-delay = <200>;
   62                 hisilicon,peripheral-syscon = <&ao_ctrl>;
   63                 reg = <0x0 0xf723e000 0x0 0x1000>;
   64                 interrupts = <0x0 0x49 0x4>;
   65                 clocks = <&clock_sys HI6220_MMC1_CIUCLK>, <&clock_sys HI6220_MMC1_CLK>;
   66                 clock-names = "ciu", "biu";
   67                 cd-gpios = <&gpio1 0 1>;
   68                 pinctrl-names = "default", "idle";
   69                 pinctrl-0 = <&sd_pmx_func &sd_clk_cfg_func &sd_cfg_func>;
   70                 pinctrl-1 = <&sd_pmx_idle &sd_clk_cfg_idle &sd_cfg_idle>;
   71                 vqmmc-supply = <&ldo7>;
   72                 vmmc-supply = <&ldo10>;
   73         };

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