Kernel-4.18.0-80.el8_zx-dw-mshc

• ZTE specific extensions to the Synopsys Designware Mobile Storage
  Host Controller

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 ZTE specific
extensions to the Synopsys Designware Mobile Storage Host Controller.

Required Properties:

• compatible: should be
  • “zte,zx296718-dw-mshc”: for ZX SoCs

Example:

mmc1: mmc@1110000 {
    compatible = "zte,zx296718-dw-mshc";
    reg = <0x01110000 0x1000>;
    interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
    fifo-depth = <32>;
    data-addr = <0x200>;
    fifo-watermark-aligned;
    bus-width = <4>;
    clock-frequency = <50000000>;
    clocks = <&topcrm SD0_AHB>, <&topcrm SD0_WCLK>;
    clock-names = "biu", "ciu";
    max-frequency = <50000000>;
    cap-sdio-irq;
    cap-sd-highspeed;
};