u-boot/arch/arm/include/asm/arch-rockchip/pwm.h
Simon Glass 0e23fd81a5 pwm: rockchip: Add a PWM driver for Rockchip SoCs
Add a simple driver which implements the standard PWM uclass interface.

Signed-off-by: Simon Glass <sjg@chromium.org>
2016-01-21 20:42:36 -07:00

41 lines
1,019 B
C

/*
* (C) Copyright 2016 Google, Inc
* (C) Copyright 2008-2014 Rockchip Electronics
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_ARCH_PWM_H
#define _ASM_ARCH_PWM_H
struct rk3288_pwm {
u32 cnt;
u32 period_hpr;
u32 duty_lpr;
u32 ctrl;
};
check_member(rk3288_pwm, ctrl, 0xc);
#define RK_PWM_DISABLE (0 << 0)
#define RK_PWM_ENABLE (1 << 0)
#define PWM_ONE_SHOT (0 << 1)
#define PWM_CONTINUOUS (1 << 1)
#define RK_PWM_CAPTURE (1 << 2)
#define PWM_DUTY_POSTIVE (1 << 3)
#define PWM_DUTY_NEGATIVE (0 << 3)
#define PWM_INACTIVE_POSTIVE (1 << 4)
#define PWM_INACTIVE_NEGATIVE (0 << 4)
#define PWM_OUTPUT_LEFT (0 << 5)
#define PWM_OUTPUT_CENTER (1 << 5)
#define PWM_LP_ENABLE (1 << 8)
#define PWM_LP_DISABLE (0 << 8)
#define PWM_SEL_SCALE_CLK (1 << 9)
#define PWM_SEL_SRC_CLK (0 << 9)
#endif