src/arch/riscv/include/arch/io.h

/*
 * This file is part of the coreboot project.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#ifndef _ASM_IO_H
#define _ASM_IO_H

#include <stdint.h>

static inline void outb(uint8_t value, uint16_t port)
{
}

static inline void outw(uint16_t value, uint16_t port)
{
}

static inline void outl(uint32_t value, uint16_t port)
{
}


static inline uint8_t inb(uint16_t port)
{
	return 0;
}


static inline uint16_t inw(uint16_t port)
{
	return 0;
}

static inline uint32_t inl(uint16_t port)
{
	return 0;
}

static inline __attribute__((always_inline)) uint8_t read8(const volatile void *addr)
{
	return *((volatile uint8_t *)(addr));
}

static inline __attribute__((always_inline)) uint16_t read16(const volatile void *addr)
{
	return *((volatile uint16_t *)(addr));
}

static inline __attribute__((always_inline)) uint32_t read32(const volatile void *addr)
{
	return *((volatile uint32_t *)(addr));
}

static inline __attribute__((always_inline)) void write8(volatile void *addr, uint8_t value)
{
	*((volatile uint8_t *)(addr)) = value;
}

static inline __attribute__((always_inline)) void write16(volatile void *addr, uint16_t value)
{
	*((volatile uint16_t *)(addr)) = value;
}

static inline __attribute__((always_inline)) void write32(volatile void *addr, uint32_t value)
{
	*((volatile uint32_t *)(addr)) = value;
}

#endif