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Documentation / devicetree / bindings / mmc / k3-dw-mshc.txt




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Based on kernel version 4.7.2. Page generated on 2016-08-22 22:42 EST.

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