50 lines
1.6 KiB
Plaintext
50 lines
1.6 KiB
Plaintext
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Netlogic XLP Family GPIO
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========================
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This GPIO driver is used for following Netlogic XLP SoCs:
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XLP832, XLP316, XLP208, XLP980, XLP532
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This GPIO driver is also compatible with GPIO controller found on
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Broadcom Vulcan ARM64.
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Required properties:
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-------------------
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- compatible: Should be one of the following:
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- "netlogic,xlp832-gpio": For Netlogic XLP832
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- "netlogic,xlp316-gpio": For Netlogic XLP316
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- "netlogic,xlp208-gpio": For Netlogic XLP208
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- "netlogic,xlp980-gpio": For Netlogic XLP980
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- "netlogic,xlp532-gpio": For Netlogic XLP532
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- "brcm,vulcan-gpio": For Broadcom Vulcan ARM64
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- reg: Physical base address and length of the controller's registers.
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- #gpio-cells: Should be two. The first cell is the pin number and the second
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cell is used to specify optional parameters (currently unused).
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- gpio-controller: Marks the device node as a GPIO controller.
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- nr-gpios: Number of GPIO pins supported by the controller.
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- interrupt-cells: Should be two. The first cell is the GPIO Number. The
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second cell is used to specify flags. The following subset of flags is
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supported:
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- trigger type:
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1 = low to high edge triggered.
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2 = high to low edge triggered.
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4 = active high level-sensitive.
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8 = active low level-sensitive.
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- interrupts: Interrupt number for this device.
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- interrupt-controller: Identifies the node as an interrupt controller.
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Example:
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gpio: xlp_gpio@34000 {
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compatible = "netlogic,xlp316-gpio";
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reg = <0 0x34100 0x1000
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0 0x35100 0x1000>;
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#gpio-cells = <2>;
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gpio-controller;
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nr-gpios = <57>;
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#interrupt-cells = <2>;
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interrupt-parent = <&pic>;
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interrupts = <39>;
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interrupt-controller;
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};
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