1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * (C) Copyright 2016 Hans de Goede <hdegoede@redhat.com>
4  */
5 
6 #ifndef _SUNXI_PWM_H
7 #define _SUNXI_PWM_H
8 
9 #ifndef __ASSEMBLY__
10 #include <linux/bitops.h>
11 #endif
12 
13 #define SUNXI_PWM_CTRL_REG		(SUNXI_PWM_BASE + 0)
14 #define SUNXI_PWM_CH0_PERIOD		(SUNXI_PWM_BASE + 4)
15 
16 #define SUNXI_PWM_CTRL_PRESCALE0(x)	((x) & 0xf)
17 #define SUNXI_PWM_CTRL_PRESCALE0_MASK	0xf
18 #define SUNXI_PWM_CTRL_ENABLE0		(0x5 << 4)
19 #define SUNXI_PWM_CTRL_POLARITY0(x)	((x) << 5)
20 #define SUNXI_PWM_CTRL_CH0_ACT_STA	BIT(5)
21 #define SUNXI_PWM_CTRL_CLK_GATE		BIT(6)
22 
23 #define SUNXI_PWM_CH0_PERIOD_MAX	(0xffff)
24 #define SUNXI_PWM_CH0_PERIOD_PRD(x)	((x & 0xffff) << 16)
25 #define SUNXI_PWM_CH0_PERIOD_DUTY(x)	((x) & 0xffff)
26 
27 #define SUNXI_PWM_PERIOD_80PCT		0x04af03c0
28 
29 #if defined CONFIG_MACH_SUN4I || defined CONFIG_MACH_SUN5I
30 #define SUNXI_PWM_PIN0			SUNXI_GPB(2)
31 #define SUNXI_PWM_MUX			SUN4I_GPB_PWM
32 #endif
33 
34 #if defined CONFIG_MACH_SUN6I
35 #define SUNXI_PWM_PIN0			SUNXI_GPH(13)
36 #define SUNXI_PWM_MUX			SUN6I_GPH_PWM
37 #endif
38 
39 #if defined CONFIG_MACH_SUN8I_A23 || defined CONFIG_MACH_SUN8I_A33
40 #define SUNXI_PWM_PIN0			SUNXI_GPH(0)
41 #define SUNXI_PWM_MUX			SUN8I_GPH_PWM
42 #endif
43 
44 struct sunxi_pwm {
45 	u32 ctrl;
46 	u32 ch0_period;
47 };
48 
49 #endif
50