Renesas RZ/N pin control helpers

Macros for pin control configuration of Renesas RZ/N Series. More...

Files
file	pinctrl-rzn-common.h
	Devicetree pin control helpers for Renesas RZ/N.

Macros
#define	RZN_PINMUX(port, pin, func)
	Create an encoded value containing port/pin/function information.

Detailed Description

Macros for pin control configuration of Renesas RZ/N Series.

Each pin configuration is built with the RZN_PINMUX() macro, which takes three fields:

• port — the port identifier, one of the PORT_* values.
• pin — the pin number within that port.
• func — the alternate-function number that selects which peripheral signal is routed to the pin. There is no symbolic macro for it: func is the function index for the pin taken from the SoC's Pin Function Controller table (the multiplexing table in the hardware manual / pin-assignment spreadsheet), passed as a plain integer.

For example, RZN_PINMUX(PORT_16, 5, 1) routes function 1 of port 16 pin 5 (UART0 TXD on the supported SoCs).

#include <zephyr/dt-bindings/pinctrl/renesas/pinctrl-rzn-common.h>
 
&pinctrl {
        uart0_default: uart0_default {
                group1 {
                        pinmux = <RZN_PINMUX(PORT_16, 5, 1)>;
                };
                group2 {
                        pinmux = <RZN_PINMUX(PORT_16, 6, 2)>;
                        input-enable;
                };
        };
};

Macro Definition Documentation

RZN_PINMUX

#define RZN_PINMUX	(		port,
			pin,
			func )

#include <zephyr/dt-bindings/pinctrl/renesas/pinctrl-rzn-common.h>

Value:

(port | pin | (func << 16))

Create an encoded value containing port/pin/function information.

Parameters

port	Port identifier (PORT_00..PORT_34).
pin	Pin number within the port.
func	Pin function selector (encoded in bits [21:16])

Returns

Encoded pinmux value.