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Commit | Line | Data |
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53126a2f | 1 | * Rockchip specific extensions to the Synopsys Designware Mobile |
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2 | Storage Host Controller |
3 | ||
53126a2f | 4 | The Synopsys designware mobile storage host controller is used to interface |
c73e41c8 | 5 | a SoC with storage medium such as eMMC or SD/MMC cards. This file documents |
53126a2f DN |
6 | differences between the core Synopsys dw mshc controller properties described |
7 | by synopsys-dw-mshc.txt and the properties used by the Rockchip specific | |
8 | extensions to the Synopsys Designware Mobile Storage Host Controller. | |
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9 | |
10 | Required Properties: | |
11 | ||
12 | * compatible: should be | |
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13 | - "rockchip,rk2928-dw-mshc": for Rockchip RK2928 and following, |
14 | before RK3288 | |
15 | - "rockchip,rk3288-dw-mshc": for Rockchip RK3288 | |
318465ad | 16 | - "rockchip,rv1108-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RV1108 |
cef687d0 | 17 | - "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3036 |
b662f6d0 | 18 | - "rockchip,rk3368-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3368 |
411963a6 | 19 | - "rockchip,rk3399-dw-mshc", "rockchip,rk3288-dw-mshc": for Rockchip RK3399 |
c73e41c8 | 20 | |
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21 | Optional Properties: |
22 | * clocks: from common clock binding: if ciu_drive and ciu_sample are | |
23 | specified in clock-names, should contain handles to these clocks. | |
24 | ||
25 | * clock-names: Apart from the clock-names described in synopsys-dw-mshc.txt | |
26 | two more clocks "ciu-drive" and "ciu-sample" are supported. They are used | |
27 | to control the clock phases, "ciu-sample" is required for tuning high- | |
28 | speed modes. | |
29 | ||
30 | * rockchip,default-sample-phase: The default phase to set ciu_sample at | |
31 | probing, low speeds or in case where all phases work at tuning time. | |
32 | If not specified 0 deg will be used. | |
33 | ||
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34 | Example: |
35 | ||
36 | rkdwmmc0@12200000 { | |
f629ba2c | 37 | compatible = "rockchip,rk3288-dw-mshc"; |
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38 | reg = <0x12200000 0x1000>; |
39 | interrupts = <0 75 0>; | |
40 | #address-cells = <1>; | |
41 | #size-cells = <0>; | |
42 | }; |