1 GPIO controllers on MPC8xxx SoCs
3 This is for the non-QE/CPM/GUTs GPIO controllers as found on
4 8349, 8572, 8610 and compatible.
6 Every GPIO controller node must have #gpio-cells property defined,
7 this information will be used to translate gpio-specifiers.
10 - compatible : "fsl,<CHIP>-gpio" followed by "fsl,mpc8349-gpio" for
11 83xx, "fsl,mpc8572-gpio" for 85xx and "fsl,mpc8610-gpio" for 86xx.
12 - #gpio-cells : Should be two. The first cell is the pin number and the
13 second cell is used to specify optional parameters (currently unused).
14 - interrupts : Interrupt mapping for GPIO IRQ (currently unused).
15 - interrupt-parent : Phandle for the interrupt controller that
16 services interrupts for this device.
17 - gpio-controller : Marks the port as GPIO controller.
19 Example of gpio-controller nodes for a MPC8347 SoC:
21 gpio1: gpio-controller@c00 {
23 compatible = "fsl,mpc8347-gpio", "fsl,mpc8349-gpio";
25 interrupts = <74 0x8>;
26 interrupt-parent = <&ipic>;
30 gpio2: gpio-controller@d00 {
32 compatible = "fsl,mpc8347-gpio", "fsl,mpc8349-gpio";
34 interrupts = <75 0x8>;
35 interrupt-parent = <&ipic>;
39 See booting-without-of.txt for details of how to specify GPIO
40 information for devices.