1* Rockchip specific extensions to the Synopsys Designware Mobile
2  Storage 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 Rockchip specific
8extensions to the Synopsys Designware Mobile Storage Host Controller.
9
10Required Properties:
11
12* compatible: should be
13	- "rockchip,rk2928-dw-mshc": for Rockchip RK2928 and following,
14							before RK3288
15	- "rockchip,rk3288-dw-mshc": for Rockchip RK3288
16
17Optional Properties:
18* clocks: from common clock binding: if ciu_drive and ciu_sample are
19  specified in clock-names, should contain handles to these clocks.
20
21* clock-names: Apart from the clock-names described in synopsys-dw-mshc.txt
22  two more clocks "ciu-drive" and "ciu-sample" are supported. They are used
23  to control the clock phases, "ciu-sample" is required for tuning high-
24  speed modes.
25
26* rockchip,default-sample-phase: The default phase to set ciu_sample at
27  probing, low speeds or in case where all phases work at tuning time.
28  If not specified 0 deg will be used.
29
30Example:
31
32	rkdwmmc0@12200000 {
33		compatible = "rockchip,rk3288-dw-mshc";
34		reg = <0x12200000 0x1000>;
35		interrupts = <0 75 0>;
36		#address-cells = <1>;
37		#size-cells = <0>;
38	};
39