/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2017 Intel Corp.
 *
 * 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 X86_CF9_RESET_H
#define X86_CF9_RESET_H

/* Reset control port */
#define RST_CNT			0xcf9
#define FULL_RST		(1 << 3)
#define RST_CPU			(1 << 2)
#define SYS_RST			(1 << 1)

/* Implement the bare reset, i.e. write to cf9. */
void do_system_reset(void);
void do_full_reset(void);

/* Called by functions below before reset. */
#if IS_ENABLED(CONFIG_HAVE_CF9_RESET_PREPARE)
void cf9_reset_prepare(void);
#else
static inline void cf9_reset_prepare(void) {}
#endif

/* Prepare for reset, run do_*_reset(), halt. */
__noreturn void system_reset(void);
__noreturn void full_reset(void);

#endif	/* X86_CF9_RESET_H */