0001 * Freescale MPC512x/MPC8xxx/QorIQ/Layerscape GPIO controller
0002
0003 Required properties:
0004 - compatible : Should be "fsl,<soc>-gpio"
0005 The following <soc>s are known to be supported:
0006 mpc5121, mpc5125, mpc8349, mpc8572, mpc8610, pq3, qoriq,
0007 ls1021a, ls1043a, ls2080a, ls1028a, ls1088a.
0008 - reg : Address and length of the register set for the device
0009 - interrupts : Should be the port interrupt shared by all 32 pins.
0010 - #gpio-cells : Should be two. The first cell is the pin number and
0011 the second cell is used to specify the gpio polarity:
0012 0 = active high
0013 1 = active low
0014
0015 Optional properties:
0016 - little-endian : GPIO registers are used as little endian. If not
0017 present registers are used as big endian by default.
0018
0019 Example of gpio-controller node for a mpc5125 SoC:
0020
0021 gpio0: gpio@1100 {
0022 compatible = "fsl,mpc5125-gpio";
0023 #gpio-cells = <2>;
0024 reg = <0x1100 0x080>;
0025 interrupts = <78 0x8>;
0026 };
0027
0028 Example of gpio-controller node for a ls2080a SoC:
0029
0030 gpio0: gpio@2300000 {
0031 compatible = "fsl,ls2080a-gpio", "fsl,qoriq-gpio";
0032 reg = <0x0 0x2300000 0x0 0x10000>;
0033 interrupts = <0 36 0x4>; /* Level high type */
0034 gpio-controller;
0035 little-endian;
0036 #gpio-cells = <2>;
0037 interrupt-controller;
0038 #interrupt-cells = <2>;
0039 };
0040
0041
0042 Example of gpio-controller node for a ls1028a/ls1088a SoC:
0043
0044 gpio1: gpio@2300000 {
0045 compatible = "fsl,ls1028a-gpio", "fsl,ls1088a-gpio", "fsl,qoriq-gpio";
0046 reg = <0x0 0x2300000 0x0 0x10000>;
0047 interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
0048 gpio-controller;
0049 #gpio-cells = <2>;
0050 interrupt-controller;
0051 #interrupt-cells = <2>;
0052 little-endian;
0053 };
