| NXP LPC18xx/43xx SCU pin controller Device Tree Bindings |
| -------------------------------------------------------- |
| |
| Required properties: |
| - compatible : Should be "nxp,lpc1850-scu" |
| - reg : Address and length of the register set for the device |
| - clocks : Clock specifier (see clock bindings for details) |
| |
| The lpc1850-scu driver uses the generic pin multiplexing and generic pin |
| configuration documented in pinctrl-bindings.txt. |
| |
| The following generic nodes are supported: |
| - function |
| - pins |
| - bias-disable |
| - bias-pull-up |
| - bias-pull-down |
| - drive-strength |
| - input-enable |
| - input-disable |
| - input-schmitt-enable |
| - input-schmitt-disable |
| - slew-rate |
| |
| NXP specific properties: |
| - nxp,gpio-pin-interrupt : Assign pin to gpio pin interrupt controller |
| irq number 0 to 7. See example below. |
| |
| Not all pins support all properties so either refer to the NXP 1850/4350 |
| user manual or the pin table in the pinctrl-lpc18xx driver for supported |
| pin properties. |
| |
| Example: |
| pinctrl: pinctrl@40086000 { |
| compatible = "nxp,lpc1850-scu"; |
| reg = <0x40086000 0x1000>; |
| clocks = <&ccu1 CLK_CPU_SCU>; |
| |
| i2c0_pins: i2c0-pins { |
| i2c0_pins_cfg { |
| pins = "i2c0_scl", "i2c0_sda"; |
| function = "i2c0"; |
| input-enable; |
| }; |
| }; |
| |
| uart0_pins: uart0-pins { |
| uart0_rx_cfg { |
| pins = "pf_11"; |
| function = "uart0"; |
| bias-disable; |
| input-enable; |
| }; |
| |
| uart0_tx_cfg { |
| pins = "pf_10"; |
| function = "uart0"; |
| bias-disable; |
| }; |
| }; |
| |
| gpio_joystick_pins: gpio-joystick-pins { |
| gpio_joystick_1_cfg { |
| pins = "p9_0"; |
| function = "gpio"; |
| nxp,gpio-pin-interrupt = <0>; |
| input-enable; |
| bias-disable; |
| }; |
| }; |
| }; |