mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-18 02:38:56 +00:00
b9d1f88b3a
The way that the timer support is currently done for exynos/nexell platforms relies on the legacy PWM infrastructure, and that needs to be updated. However, we really cannot safely undef CONFIG_DM_PWM to build the timer.c file without warnings. For now, rename the relevant legacy functions to be prefixed with s5p_ and add prototypes to the arch pwm.h files. Cc: Minkyu Kang <mk7.kang@samsung.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Cc: Dzmitry Sankouski <dsankouski@gmail.com> Cc: Stefan Bosch <stefan_b@posteo.net> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2009 Samsung Electronics
|
|
* Kyungmin Park <kyungmin.park@samsung.com>
|
|
* Minkyu Kang <mk7.kang@samsung.com>
|
|
*/
|
|
|
|
#ifndef __ASM_ARM_ARCH_PWM_H_
|
|
#define __ASM_ARM_ARCH_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)
|
|
|
|
#ifndef __ASSEMBLY__
|
|
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 s5p_pwm_init (int pwm_id, int div, int invert);
|
|
int s5p_pwm_config (int pwm_id, int duty_ns, int period_ns);
|
|
int s5p_pwm_enable (int pwm_id);
|
|
void s5p_pwm_disable (int pwm_id);
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif
|