blob: dbf0fd23cf77d027fa0a5aa82c3c58abc0f306a7 [file] [log] [blame]
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Google Inc.
*
* 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _BAYTRAIL_RESET_H_
#define _BAYTRAIL_RESET_H_
#include <reset.h>
/* Bay Trail has the following types of resets:
* - Soft reset (INIT# to cpu) - write 0x1 to I/O 0x92
* - Soft reset (INIT# to cpu)- write 0x4 to I/0 0xcf9
* - Cold reset (S0->S5->S0) - write 0xe to I/0 0xcf9
* - Warm reset (PMC_PLTRST# assertion) - write 0x6 to I/O 0xcf9
* - Global reset (S0->S5->S0 with TXE reset) - write 0x6 or 0xe to 0xcf9 but
* with ETR[20] set.
*/
void cold_reset(void);
void warm_reset(void);
#endif /* _BAYTRAIL_RESET_H_ */