u-boot/arch/arm/mach-nexell/include/mach/pwm.h
Stefan Bosch 18284c1d56 pwm: add driver for nexell
Changes in relation to FriendlyARM's U-Boot nanopi2-v2016.01:
- Since drivers/pwm/pwm-nexell.c is an adapted version of
  s5p-common/pwm.c an appropriately changed version of s5p-common/pwm.c
  is used instead. Therefore arch/arm/mach-s5pc1xx/include/mach/pwm.h
  copied to arch/arm/mach-nexell/include/mach and s5p-common/Makefile
  changed appropriately.
- '#ifdef CONFIG...' changed to 'if (IS_ENABLED(CONFIG...))' where
  possible (and similar).

Signed-off-by: Stefan Bosch <stefan_b@posteo.net>
2020-07-29 08:43:40 -04:00

54 lines
1.3 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 res1;
unsigned int tcnto3;
unsigned int tcntb4;
unsigned int tcnto4;
unsigned int tintcstat;
};
#endif /* __ASSEMBLY__ */
#endif