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1Netlogic XLP Family GPIO
2========================
3
4This GPIO driver is used for following Netlogic XLP SoCs:
5 XLP832, XLP316, XLP208, XLP980, XLP532
6This GPIO driver is also compatible with GPIO controller found on
7Broadcom Vulcan ARM64.
8
9Required properties:
10-------------------
11
12- compatible: Should be one of the following:
13 - "netlogic,xlp832-gpio": For Netlogic XLP832
14 - "netlogic,xlp316-gpio": For Netlogic XLP316
15 - "netlogic,xlp208-gpio": For Netlogic XLP208
16 - "netlogic,xlp980-gpio": For Netlogic XLP980
17 - "netlogic,xlp532-gpio": For Netlogic XLP532
18 - "brcm,vulcan-gpio": For Broadcom Vulcan ARM64
19- reg: Physical base address and length of the controller's registers.
20- #gpio-cells: Should be two. The first cell is the pin number and the second
21 cell is used to specify optional parameters (currently unused).
22- gpio-controller: Marks the device node as a GPIO controller.
23- nr-gpios: Number of GPIO pins supported by the controller.
24- interrupt-cells: Should be two. The first cell is the GPIO Number. The
25 second cell is used to specify flags. The following subset of flags is
26 supported:
27 - trigger type:
28 1 = low to high edge triggered.
29 2 = high to low edge triggered.
30 4 = active high level-sensitive.
31 8 = active low level-sensitive.
32- interrupts: Interrupt number for this device.
33- interrupt-controller: Identifies the node as an interrupt controller.
34
35Example:
36
37 gpio: xlp_gpio@34000 {
38 compatible = "netlogic,xlp316-gpio";
39 reg = <0 0x34100 0x1000
40 0 0x35100 0x1000>;
41 #gpio-cells = <2>;
42 gpio-controller;
43 nr-gpios = <57>;
44
45 #interrupt-cells = <2>;
46 interrupt-parent = <&pic>;
47 interrupts = <39>;
48 interrupt-controller;
49 };