Kernel-4.18.0-80.el8_hi3798cv200-dw-mshc

• Hisilicon Hi3798CV200 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 Hi3798CV200
specific extensions to the Synopsys Designware Mobile Storage Host Controller.

Required Properties:

• compatible: Should contain “hisilicon,hi3798cv200-dw-mshc”.
• clocks: A list of phandle + clock-specifier pairs for the clocks listed
  in clock-names.
• clock-names: Should contain the following:
  “ciu” - The ciu clock described in synopsys-dw-mshc.txt.
  “biu” - The biu clock described in synopsys-dw-mshc.txt.
  “ciu-sample” - Hi3798CV200 extended phase clock for ciu sampling.
  “ciu-drive” - Hi3798CV200 extended phase clock for ciu driving.

Example:

emmc: mmc@9830000 {
    compatible = "hisilicon,hi3798cv200-dw-mshc";
    reg = <0x9830000 0x10000>;
    interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
    clocks = <&crg HISTB_MMC_CIU_CLK>,
         <&crg HISTB_MMC_BIU_CLK>,
         <&crg HISTB_MMC_SAMPLE_CLK>,
         <&crg HISTB_MMC_DRV_CLK>;
    clock-names = "ciu", "biu", "ciu-sample", "ciu-drive";
    fifo-depth = <256>;
    clock-frequency = <200000000>;
    cap-mmc-highspeed;
    mmc-ddr-1_8v;
    mmc-hs200-1_8v;
    non-removable;
    bus-width = <8>;
};