xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/mmc/bluefield-dw-mshc.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun* Mellanox Bluefield SoC specific extensions to the Synopsys Designware
2*4882a593Smuzhiyun  Mobile Storage Host Controller
3*4882a593Smuzhiyun
4*4882a593SmuzhiyunRead synopsys-dw-mshc.txt for more details
5*4882a593Smuzhiyun
6*4882a593SmuzhiyunThe Synopsys designware mobile storage host controller is used to interface
7*4882a593Smuzhiyuna SoC with storage medium such as eMMC or SD/MMC cards. This file documents
8*4882a593Smuzhiyundifferences between the core Synopsys dw mshc controller properties described
9*4882a593Smuzhiyunby synopsys-dw-mshc.txt and the properties used by the Mellanox Bluefield SoC
10*4882a593Smuzhiyunspecific extensions to the Synopsys Designware Mobile Storage Host Controller.
11*4882a593Smuzhiyun
12*4882a593SmuzhiyunRequired Properties:
13*4882a593Smuzhiyun
14*4882a593Smuzhiyun* compatible: should be one of the following.
15*4882a593Smuzhiyun  - "mellanox,bluefield-dw-mshc": for controllers with Mellanox Bluefield SoC
16*4882a593Smuzhiyun    specific extensions.
17*4882a593Smuzhiyun
18*4882a593SmuzhiyunExample:
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun	/* Mellanox Bluefield SoC MMC */
21*4882a593Smuzhiyun	mmc@6008000 {
22*4882a593Smuzhiyun		compatible = "mellanox,bluefield-dw-mshc";
23*4882a593Smuzhiyun		reg = <0x6008000 0x400>;
24*4882a593Smuzhiyun		interrupts = <32>;
25*4882a593Smuzhiyun		fifo-depth = <0x100>;
26*4882a593Smuzhiyun		clock-frequency = <24000000>;
27*4882a593Smuzhiyun		bus-width = <8>;
28*4882a593Smuzhiyun		cap-mmc-highspeed;
29*4882a593Smuzhiyun	};
30