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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2009 Samsung Electronics
*
* 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 CPU_SAMSUNG_EXYNOS5420_PWM_H
#define CPU_SAMSUNG_EXYNOS5420_PWM_H
#define PRESCALER_0 (8 - 1) /* prescaler of timer 0, 1 */
#define PRESCALER_1 (16 - 1) /* prescaler of timer 2, 3, 4 */
/* Divider MUX */
#define MUX_DIV_1 0 /* 1/1 period */
#define MUX_DIV_2 1 /* 1/2 period */
#define MUX_DIV_4 2 /* 1/4 period */
#define MUX_DIV_8 3 /* 1/8 period */
#define MUX_DIV_16 4 /* 1/16 period */
#define MUX_DIV_SHIFT(x) (x * 4)
#define TCON_OFFSET(x) ((x + 1) * (!!x) << 2)
#define TCON_START(x) (1 << TCON_OFFSET(x))
#define TCON_UPDATE(x) (1 << (TCON_OFFSET(x) + 1))
#define TCON_INVERTER(x) (1 << (TCON_OFFSET(x) + 2))
#define TCON_AUTO_RELOAD(x) (1 << (TCON_OFFSET(x) + 3))
#define TCON4_AUTO_RELOAD (1 << 22)
struct s5p_timer {
unsigned int tcfg0;
unsigned int tcfg1;
unsigned int tcon;
unsigned int tcntb0;
unsigned int tcmpb0;
unsigned int tcnto0;
unsigned int tcntb1;
unsigned int tcmpb1;
unsigned int tcnto1;
unsigned int tcntb2;
unsigned int tcmpb2;
unsigned int tcnto2;
unsigned int tcntb3;
unsigned int tcmpb3;
unsigned int tcnto3;
unsigned int tcntb4;
unsigned int tcnto4;
unsigned int tintcstat;
};
int pwm_config(int pwm_id, int duty_ns, int period_ns);
int pwm_check_enabled(int pwm_id);
void pwm_disable(int pwm_id);
int pwm_enable(int pwm_id);
int pwm_init(int pwm_id, int div, int invert);
#endif
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