Commit | Line | Data |
---|---|---|
0e6d6332 UH |
1 | * The simple MMC power sequence provider |
2 | ||
3 | The purpose of the simple MMC power sequence provider is to supports a set of | |
4 | common properties between various SOC designs. It thus enables us to use the | |
5 | same provider for several SOC designs. | |
6 | ||
7 | Required properties: | |
8 | - compatible : contains "mmc-pwrseq-simple". | |
9 | ||
10 | Optional properties: | |
a1d7579b JMC |
11 | - reset-gpios : contains a list of GPIO specifiers. The reset GPIOs are asserted |
12 | at initialization and prior we start the power up procedure of the card. | |
13 | They will be de-asserted right after the power has been provided to the | |
14 | card. | |
3f656a16 JMC |
15 | - clocks : Must contain an entry for the entry in clock-names. |
16 | See ../clocks/clock-bindings.txt for details. | |
17 | - clock-names : Must include the following entry: | |
18 | "ext_clock" (External clock provided to the card). | |
0e6d6332 UH |
19 | |
20 | Example: | |
21 | ||
22 | sdhci0_pwrseq { | |
23 | compatible = "mmc-pwrseq-simple"; | |
638a9818 AF |
24 | reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>; |
25 | clocks = <&clk_32768_ck>; | |
26 | clock-names = "ext_clock"; | |
0e6d6332 | 27 | } |