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[mirror_ubuntu-bionic-kernel.git] / Documentation / devicetree / bindings / mmc / arasan,sdhci.txt
1 Device Tree Bindings for the Arasan SDHCI Controller
2
3 The bindings follow the mmc[1], clock[2] and interrupt[3] bindings. Only
4 deviations are documented here.
5
6 [1] Documentation/devicetree/bindings/mmc/mmc.txt
7 [2] Documentation/devicetree/bindings/clock/clock-bindings.txt
8 [3] Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
9
10 Required Properties:
11 - compatible: Compatibility string. Must be 'arasan,sdhci-8.9a' or
12 'arasan,sdhci-4.9a'
13 - reg: From mmc bindings: Register location and length.
14 - clocks: From clock bindings: Handles to clock inputs.
15 - clock-names: From clock bindings: Tuple including "clk_xin" and "clk_ahb"
16 - interrupts: Interrupt specifier
17 - interrupt-parent: Phandle for the interrupt controller that services
18 interrupts for this device.
19
20 Example:
21 sdhci@e0100000 {
22 compatible = "arasan,sdhci-8.9a";
23 reg = <0xe0100000 0x1000>;
24 clock-names = "clk_xin", "clk_ahb";
25 clocks = <&clkc 21>, <&clkc 32>;
26 interrupt-parent = <&gic>;
27 interrupts = <0 24 4>;
28 } ;