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pinctrl: dt-bindings: add documentation for AP806 pin controllers

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Document the device tree binding for the pin controllers found on the
Armada 7K and Armada 8K SoCs.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
This commit is contained in:
Gregory CLEMENT 2017-05-09 18:27:47 +02:00
parent bbc6fd0a09
commit e88e2cd701
1 changed files with 47 additions and 8 deletions
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55
Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
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@ -28,14 +28,53 @@ Required properties:
- compatible: must be: "marvell,ap806-clock"
- #clock-cells: must be set to 1
Pinctrl:
--------
For common binding part and usage, refer to
Documentation/devicetree/bindings/pinctrl/marvell,mvebu-pinctrl.txt.
Required properties:
- compatible must be "marvell,ap806-pinctrl",
Available mpp pins/groups and functions:
Note: brackets (x) are not part of the mpp name for marvell,function and given
only for more detailed description in this document.
name pins functions
================================================================================
mpp0 0 gpio, sdio(clk), spi0(clk)
mpp1 1 gpio, sdio(cmd), spi0(miso)
mpp2 2 gpio, sdio(d0), spi0(mosi)
mpp3 3 gpio, sdio(d1), spi0(cs0n)
mpp4 4 gpio, sdio(d2), i2c0(sda)
mpp5 5 gpio, sdio(d3), i2c0(sdk)
mpp6 6 gpio, sdio(ds)
mpp7 7 gpio, sdio(d4), uart1(rxd)
mpp8 8 gpio, sdio(d5), uart1(txd)
mpp9 9 gpio, sdio(d6), spi0(cs1n)
mpp10 10 gpio, sdio(d7)
mpp11 11 gpio, uart0(txd)
mpp12 12 gpio, sdio(pw_off), sdio(hw_rst)
mpp13 13 gpio
mpp14 14 gpio
mpp15 15 gpio
mpp16 16 gpio
mpp17 17 gpio
mpp18 18 gpio
mpp19 19 gpio, uart0(rxd), sdio(pw_off)
Example:
ap_syscon: system-controller@6f4000 {
compatible = "syscon", "simple-mfd";
reg = <0x6f4000 0x1000>;
syscon: system-controller@6f4000 {
compatible = "syscon", "simple-mfd";
reg = <0x6f4000 0x1000>;
ap_clk: clock {
compatible = "marvell,ap806-clock";
#clock-cells = <1>;
};
ap_clk: clock {
compatible = "marvell,ap806-clock";
#clock-cells = <1>;
};
ap_pinctrl: pinctrl {
compatible = "marvell,ap806-pinctrl";
};
};