Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc
[sfrench/cifs-2.6.git] / Documentation / devicetree / bindings / mmc / usdhi6rol0.txt
1 * Renesas usdhi6rol0 SD/SDIO host controller
2
3 Required properties:
4
5 - compatible:   must be
6                 "renesas,usdhi6rol0"
7 - interrupts:   3 interrupts, named "card detect", "data" and "SDIO" must be
8                 specified
9 - clocks:       a clock binding for the IMCLK input
10
11 Optional properties:
12
13 - vmmc-supply:  a phandle of a regulator, supplying Vcc to the card
14 - vqmmc-supply: a phandle of a regulator, supplying VccQ to the card
15 - pinctrl-names: Can contain a "default" entry and a "state_uhs"
16                  entry. The state_uhs entry is used together with the default
17                  entry when the board requires distinct settings for UHS speeds.
18
19 - pinctrl-N: One property for each name listed in pinctrl-names, see
20              ../pinctrl/pinctrl-bindings.txt.
21
22 Additionally any standard mmc bindings from mmc.txt can be used.
23
24 Example:
25
26 sd0: sd@ab000000 {
27         compatible = "renesas,usdhi6rol0";
28         reg = <0xab000000 0x200>;
29         interrupts = <0 23 0x4
30                       0 24 0x4
31                       0 25 0x4>;
32         interrupt-names = "card detect", "data", "SDIO";
33         bus-width = <4>;
34         max-frequency = <50000000>;
35         cap-power-off-card;
36         clocks = <&imclk>;
37         vmmc-supply = <&vcc_sd0>;
38         vqmmc-supply = <&vccq_sd0>;
39 };