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