1 NXP LPC18xx/43xx SCU pin controller Device Tree Bindings
2 --------------------------------------------------------
3
4 Required properties:
5 - compatible : Should be "nxp,lpc1850-scu"
6 - reg : Address and length of the register set for the device
7 - clocks : Clock specifier (see clock bindings for details)
8
9 The lpc1850-scu driver uses the generic pin multiplexing and generic pin
10 configuration documented in pinctrl-bindings.txt.
11
12 The following generic nodes are supported:
13 - function
14 - pins
15 - bias-disable
16 - bias-pull-up
17 - bias-pull-down
18 - drive-strength
19 - input-enable
20 - input-disable
21 - input-schmitt-enable
22 - input-schmitt-disable
23 - slew-rate
24
25 NXP specific properties:
26 - nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller
27 irq number 0 to 7. See example below.
28
29 Not all pins support all properties so either refer to the NXP 1850/4350
30 user manual or the pin table in the pinctrl-lpc18xx driver for supported
31 pin properties.
32
33 Example:
34 pinctrl: pinctrl@40086000 {
35 compatible = "nxp,lpc1850-scu";
36 reg = <0x40086000 0x1000>;
37 clocks = <&ccu1 CLK_CPU_SCU>;
38
39 i2c0_pins: i2c0-pins {
40 i2c0_pins_cfg {
41 pins = "i2c0_scl", "i2c0_sda";
42 function = "i2c0";
43 input-enable;
44 };
45 };
46
47 uart0_pins: uart0-pins {
48 uart0_rx_cfg {
49 pins = "pf_11";
50 function = "uart0";
51 bias-disable;
52 input-enable;
53 };
54
55 uart0_tx_cfg {
56 pins = "pf_10";
57 function = "uart0";
58 bias-disable;
59 };
60 };
61
62 gpio_joystick_pins: gpio-joystick-pins {
63 gpio_joystick_1_cfg {
64 pins = "p9_0";
65 function = "gpio";
66 nxp,gpio-pin-interrupt = <0>;
67 input-enable;
68 bias-disable;
69 };
70 };
71 };
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