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46 lines
1.6 KiB
46 lines
1.6 KiB
* Marvell SoC pinctrl core driver for mpp |
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The pinctrl driver enables Marvell SoCs to configure the multi-purpose pins |
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(mpp) to a specific function. For each SoC family there is a SoC specific |
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driver using this core driver. |
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Please refer to pinctrl-bindings.txt in this directory for details of the |
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common pinctrl bindings used by client devices, including the meaning of the |
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phrase "pin configuration node". |
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A Marvell SoC pin configuration node is a node of a group of pins which can |
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be used for a specific device or function. Each node requires one or more |
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mpp pins or group of pins and a mpp function common to all pins. |
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Required properties for pinctrl driver: |
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- compatible: "marvell,<soc>-pinctrl" |
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Please refer to each marvell,<soc>-pinctrl.txt binding doc for supported SoCs. |
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Required properties for pin configuration node: |
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- marvell,pins: string array of mpp pins or group of pins to be muxed. |
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- marvell,function: string representing a function to mux to for all |
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marvell,pins given in this pin configuration node. The function has to be |
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common for all marvell,pins. Please refer to marvell,<soc>-pinctrl.txt for |
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valid pin/pin group names and available function names for each SoC. |
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Examples: |
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uart1: serial@12100 { |
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compatible = "ns16550a"; |
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reg = <0x12100 0x100>; |
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reg-shift = <2>; |
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interrupts = <7>; |
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pinctrl-0 = <&pmx_uart1_sw>; |
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pinctrl-names = "default"; |
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}; |
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pinctrl: pinctrl@d0200 { |
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compatible = "marvell,dove-pinctrl"; |
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reg = <0xd0200 0x14>, <0xd0440 0x04>, <0xd802c 0x08>; |
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pmx_uart1_sw: pmx-uart1-sw { |
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marvell,pins = "mpp_uart1"; |
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marvell,function = "uart1"; |
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}; |
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};
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