xref: /freebsd/sys/contrib/device-tree/Bindings/mmc/img-dw-mshc.txt (revision 5ca8e32633c4ffbbcd6762e5888b6a4ba0708c6c)
1* Imagination specific extensions to the Synopsys Designware Mobile Storage
2  Host Controller
3
4The Synopsys designware mobile storage host controller is used to interface
5a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
6differences between the core Synopsys dw mshc controller properties described
7by synopsys-dw-mshc.txt and the properties used by the Imagination specific
8extensions to the Synopsys Designware Mobile Storage Host Controller.
9
10Required Properties:
11
12* compatible: should be
13	- "img,pistachio-dw-mshc": for Pistachio SoCs
14
15Example:
16
17	mmc@18142000 {
18		compatible = "img,pistachio-dw-mshc";
19		reg = <0x18142000 0x400>;
20		interrupts = <GIC_SHARED 39 IRQ_TYPE_LEVEL_HIGH>;
21
22		clocks = <&system_clk>, <&sdhost_clk>;
23		clock-names = "biu", "ciu";
24
25		fifo-depth = <0x20>;
26		bus-width = <4>;
27		disable-wp;
28	};
29