1* Hisilicon specific extensions to the Synopsys Designware Mobile
2  Storage Host Controller
3
4Read synopsys-dw-mshc.txt for more details
5
6The Synopsys designware mobile storage host controller is used to interface
7a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
8differences between the core Synopsys dw mshc controller properties described
9by synopsys-dw-mshc.txt and the properties used by the Hisilicon specific
10extensions to the Synopsys Designware Mobile Storage Host Controller.
11
12Required Properties:
13
14* compatible: should be one of the following.
15  - "hisilicon,hi3660-dw-mshc": for controllers with hi3660 specific extensions.
16  - "hisilicon,hi4511-dw-mshc": for controllers with hi4511 specific extensions.
17  - "hisilicon,hi6220-dw-mshc": for controllers with hi6220 specific extensions.
18
19Optional Properties:
20- hisilicon,peripheral-syscon: phandle of syscon used to control peripheral.
21
22Example:
23
24	/* for Hi3620 */
25
26	/* SoC portion */
27	dwmmc_0: dwmmc0@fcd03000 {
28		compatible = "hisilicon,hi4511-dw-mshc";
29		reg = <0xfcd03000 0x1000>;
30		interrupts = <0 16 4>;
31		#address-cells = <1>;
32		#size-cells = <0>;
33		clocks = <&mmc_clock HI3620_SD_CIUCLK>, <&clock HI3620_DDRC_PER_CLK>;
34		clock-names = "ciu", "biu";
35	};
36
37	/* Board portion */
38	dwmmc0@fcd03000 {
39		num-slots = <1>;
40		vmmc-supply = <&ldo12>;
41		fifo-depth = <0x100>;
42		pinctrl-names = "default";
43		pinctrl-0 = <&sd_pmx_pins &sd_cfg_func1 &sd_cfg_func2>;
44		bus-width = <4>;
45		disable-wp;
46		cd-gpios = <&gpio10 3 0>;
47		cap-mmc-highspeed;
48		cap-sd-highspeed;
49	};
50
51	/* for Hi6220 */
52
53	dwmmc_1: dwmmc1@f723e000 {
54		compatible = "hisilicon,hi6220-dw-mshc";
55		num-slots = <0x1>;
56		bus-width = <0x4>;
57		disable-wp;
58		cap-sd-highspeed;
59		sd-uhs-sdr12;
60		sd-uhs-sdr25;
61		card-detect-delay = <200>;
62		hisilicon,peripheral-syscon = <&ao_ctrl>;
63		reg = <0x0 0xf723e000 0x0 0x1000>;
64		interrupts = <0x0 0x49 0x4>;
65		clocks = <&clock_sys HI6220_MMC1_CIUCLK>, <&clock_sys HI6220_MMC1_CLK>;
66		clock-names = "ciu", "biu";
67		cd-gpios = <&gpio1 0 1>;
68		pinctrl-names = "default", "idle";
69		pinctrl-0 = <&sd_pmx_func &sd_clk_cfg_func &sd_cfg_func>;
70		pinctrl-1 = <&sd_pmx_idle &sd_clk_cfg_idle &sd_cfg_idle>;
71		vqmmc-supply = <&ldo7>;
72		vmmc-supply = <&ldo10>;
73	};
74