linux-arkmicro/u-boot/board/eets/pdu001/mux.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * mux.c
 *
 * Copyright (C) 2018 EETS GmbH - http://www.eets.ch/
 *
 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
 */

#include <common.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/hardware.h>
#include <asm/arch/mux.h>
#include <asm/io.h>
#include <i2c.h>
#include "board.h"

static struct module_pin_mux uart0_pin_mux[] = {
	{OFFSET(uart0_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)},	/* UART0_RXD */
	{OFFSET(uart0_txd), (MODE(0) | PULLUDEN)},		/* UART0_TXD */
	{-1},
};

static struct module_pin_mux uart1_pin_mux[] = {
	{OFFSET(uart1_rxd), (MODE(0) | PULLUP_EN | RXACTIVE)},	/* UART1_RXD */
	{OFFSET(uart1_txd), (MODE(0) | PULLUDEN)},		/* UART1_TXD */
	{-1},
};

static struct module_pin_mux uart2_pin_mux[] = {
	{OFFSET(spi0_sclk), (MODE(1) | PULLUP_EN | RXACTIVE)},	/* UART2_RXD */
	{OFFSET(spi0_d0), (MODE(1) | PULLUDEN)},		/* UART2_TXD */
	{-1},
};

static struct module_pin_mux uart3_pin_mux[] = {
	{OFFSET(spi0_cs1), (MODE(1) | PULLUP_EN | RXACTIVE)},	/* UART3_RXD */
	{OFFSET(ecap0_in_pwm0_out), (MODE(1) | PULLUDEN)},	/* UART3_TXD */
	{-1},
};

static struct module_pin_mux uart4_pin_mux[] = {
	{OFFSET(gpmc_wait0), (MODE(6) | PULLUP_EN | RXACTIVE)},	/* UART4_RXD */
	{OFFSET(gpmc_wpn), (MODE(6) | PULLUDEN)},		/* UART4_TXD */
	{-1},
};

static struct module_pin_mux uart5_pin_mux[] = {
	{OFFSET(lcd_data9), (MODE(4) | PULLUP_EN | RXACTIVE)},	/* UART5_RXD */
	{OFFSET(lcd_data8), (MODE(4) | PULLUDEN)},		/* UART5_TXD */
	{-1},
};

static struct module_pin_mux i2c0_pin_mux[] = {
	{OFFSET(i2c0_sda), (MODE(0) | RXACTIVE |
			PULLUDEN | SLEWCTRL)},			/* I2C_DATA  */
	{OFFSET(i2c0_scl), (MODE(0) | RXACTIVE |
			PULLUDEN | SLEWCTRL)},			/* I2C_SCLK  */
	{-1},
};

void enable_uart0_pin_mux(void)
{
	configure_module_pin_mux(uart0_pin_mux);
}

void enable_uart1_pin_mux(void)
{
	configure_module_pin_mux(uart1_pin_mux);
}

void enable_uart2_pin_mux(void)
{
	configure_module_pin_mux(uart2_pin_mux);
}

void enable_uart3_pin_mux(void)
{
	configure_module_pin_mux(uart3_pin_mux);
}

void enable_uart4_pin_mux(void)
{
	configure_module_pin_mux(uart4_pin_mux);
}

void enable_uart5_pin_mux(void)
{
	configure_module_pin_mux(uart5_pin_mux);
}

void enable_uart_pin_mux(u32 addr)
{
	switch (addr) {
	case CONFIG_SYS_NS16550_COM1:
		enable_uart0_pin_mux();
		break;
	case CONFIG_SYS_NS16550_COM2:
		enable_uart1_pin_mux();
		break;
	case CONFIG_SYS_NS16550_COM3:
		enable_uart2_pin_mux();
		break;
	case CONFIG_SYS_NS16550_COM4:
		enable_uart3_pin_mux();
		break;
	case CONFIG_SYS_NS16550_COM5:
		enable_uart4_pin_mux();
		break;
	case CONFIG_SYS_NS16550_COM6:
		enable_uart5_pin_mux();
		break;
	}
}

void enable_i2c0_pin_mux(void)
{
	configure_module_pin_mux(i2c0_pin_mux);
}