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[karo-tx-linux.git] / Documentation / devicetree / bindings / mmc / zx-dw-mshc.txt
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                 status = "disabled";
32         };