Renesas RA0 pin control helpers

Macros for pin control configuration of Renesas RA0 SoCs. More...

Files
file	pinctrl-ra0.h
	Devicetree pin control helpers for Renesas RA0.

Macros
#define	RA_PSEL(psel, port_num, pin_num)
	Utility macro to build Renesas RA0 psels property entry.

Detailed Description

Macros for pin control configuration of Renesas RA0 SoCs.

Each pin configuration is built with the RA_PSEL() macro, which combines a per-port peripheral-function selector, the port number, and the pin number within that port.

The selector follows the naming convention RA_PSEL_P<PORT>nPFS_<SIGNAL>, where <PORT> is the port number and <SIGNAL> is the peripheral signal routed to the pin (for example RA_PSEL_P1nPFS_TXDA0C selects the TXDA0C signal on port 1). Signals are grouped by peripheral:

• Timer array unit (TAU): timer inputs TI and outputs TO
• Serial array unit (SAU) in SPI mode: SCK, SI, SO, SSI; in UART mode: TXD, RXD; in simple-I2C mode: SCL, SDA
• IICA: SCLA0, SDAA0, SCLA1, SDAA1
• UARTA: TXDA0, RXDA0, TXDA1, RXDA1
• RTC: RTCOUT, RTCOUNTC
• Clock output (CGC): PCLBUZ0, PCLBUZ1
• Capacitive touch (CTSU): TS0 ... TS12, TSCAP
• JTAG/SWD: SWDIO, SWCLK

#include <zephyr/dt-bindings/pinctrl/renesas/pinctrl-ra0.h>
 
&pinctrl {
        uarta0_default: uarta0_default {
                group1 {
                        psels = <RA_PSEL(RA_PSEL_P1nPFS_TXDA0C, 1, 5)>,
                                <RA_PSEL(RA_PSEL_P1nPFS_RXDA0C, 1, 6)>;
                };
        };
};

Macro Definition Documentation

RA_PSEL

#define RA_PSEL	(		psel,
			port_num,
			pin_num )

#include <zephyr/dt-bindings/pinctrl/renesas/pinctrl-ra0.h>

Value:

(psel << RA_PSEL_POS | port_num << RA_PORT_NUM_POS | pin_num << RA_PIN_NUM_POS)

Utility macro to build Renesas RA0 psels property entry.

Parameters

psel	Pin function configuration (see RA_PSEL_{name} macros).
port_num	Port (0 or 15).
pin_num	Pin (0..31).