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,hi3660-dw-mshc": for controllers with hi3660 specific extensions.
16 - "hisilicon,hi3670-dw-mshc", "hisilicon,hi3660-dw-mshc": for controllers
17 with hi3670 specific extensions.
18 - "hisilicon,hi4511-dw-mshc": for controllers with hi4511 specific extensions.
19 - "hisilicon,hi6220-dw-mshc": for controllers with hi6220 specific extensions.
20
21 Optional Properties:
22 - hisilicon,peripheral-syscon: phandle of syscon used to control peripheral.
23
24 Example:
25
26 /* for Hi3620 */
27
28 /* SoC portion */
29 dwmmc_0: dwmmc0@fcd03000 {
30 compatible = "hisilicon,hi4511-dw-mshc";
31 reg = <0xfcd03000 0x1000>;
32 interrupts = <0 16 4>;
33 #address-cells = <1>;
34 #size-cells = <0>;
35 clocks = <&mmc_clock HI3620_SD_CIUCLK>, <&clock HI3620_DDRC_PER_CLK>;
36 clock-names = "ciu", "biu";
37 };
38
39 /* Board portion */
40 dwmmc0@fcd03000 {
41 vmmc-supply = <&ldo12>;
42 fifo-depth = <0x100>;
43 pinctrl-names = "default";
44 pinctrl-0 = <&sd_pmx_pins &sd_cfg_func1 &sd_cfg_func2>;
45 bus-width = <4>;
46 disable-wp;
47 cd-gpios = <&gpio10 3 0>;
48 cap-mmc-highspeed;
49 cap-sd-highspeed;
50 };
51
52 /* for Hi6220 */
53
54 dwmmc_1: dwmmc1@f723e000 {
55 compatible = "hisilicon,hi6220-dw-mshc";
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 };
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