blob: 38bddcb190c8e63529716a97ab6b9b292acb9a87 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
|
/*
* gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
*
* Copyright (c) 2005-2008 Analog Devices Inc.
* Copyright (C) 2005 John DeHority
* Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
*
* Licensed under the GPL-2.
*/
#ifndef _BLACKFIN_TIMERS_H_
#define _BLACKFIN_TIMERS_H_
#include <linux/types.h>
#include <asm/blackfin.h>
/*
* BF51x/BF52x/BF537: 8 timers:
*/
#if defined(CONFIG_BF51x) || defined(CONFIG_BF52x) || defined(BF537_FAMILY)
# define MAX_BLACKFIN_GPTIMERS 8
# define TIMER0_GROUP_REG TIMER_ENABLE
#endif
/*
* BF54x: 11 timers (BF542: 8 timers):
*/
#if defined(CONFIG_BF54x)
# ifdef CONFIG_BF542
# define MAX_BLACKFIN_GPTIMERS 8
# else
# define MAX_BLACKFIN_GPTIMERS 11
# define TIMER8_GROUP_REG TIMER_ENABLE1
# define TIMER_GROUP2 1
# endif
# define TIMER0_GROUP_REG TIMER_ENABLE0
#endif
/*
* BF561: 12 timers:
*/
#if defined(CONFIG_BF561)
# define MAX_BLACKFIN_GPTIMERS 12
# define TIMER0_GROUP_REG TMRS8_ENABLE
# define TIMER8_GROUP_REG TMRS4_ENABLE
# define TIMER_GROUP2 1
#endif
/*
* All others: 3 timers:
*/
#define TIMER_GROUP1 0
#if !defined(MAX_BLACKFIN_GPTIMERS)
# define MAX_BLACKFIN_GPTIMERS 3
# define TIMER0_GROUP_REG TIMER_ENABLE
#endif
#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
#define BFIN_TIMER_OCTET(x) ((x) >> 3)
/* used in masks for timer_enable() and timer_disable() */
#define TIMER0bit 0x0001 /* 0001b */
#define TIMER1bit 0x0002 /* 0010b */
#define TIMER2bit 0x0004 /* 0100b */
#define TIMER3bit 0x0008
#define TIMER4bit 0x0010
#define TIMER5bit 0x0020
#define TIMER6bit 0x0040
#define TIMER7bit 0x0080
#define TIMER8bit 0x0100
#define TIMER9bit 0x0200
#define TIMER10bit 0x0400
#define TIMER11bit 0x0800
#define TIMER0_id 0
#define TIMER1_id 1
#define TIMER2_id 2
#define TIMER3_id 3
#define TIMER4_id 4
#define TIMER5_id 5
#define TIMER6_id 6
#define TIMER7_id 7
#define TIMER8_id 8
#define TIMER9_id 9
#define TIMER10_id 10
#define TIMER11_id 11
/* associated timers for ppi framesync: */
#if defined(CONFIG_BF561)
# define FS0_1_TIMER_ID TIMER8_id
# define FS0_2_TIMER_ID TIMER9_id
# define FS1_1_TIMER_ID TIMER10_id
# define FS1_2_TIMER_ID TIMER11_id
# define FS0_1_TIMER_BIT TIMER8bit
# define FS0_2_TIMER_BIT TIMER9bit
# define FS1_1_TIMER_BIT TIMER10bit
# define FS1_2_TIMER_BIT TIMER11bit
# undef FS1_TIMER_ID
# undef FS2_TIMER_ID
# undef FS1_TIMER_BIT
# undef FS2_TIMER_BIT
#else
# define FS1_TIMER_ID TIMER0_id
# define FS2_TIMER_ID TIMER1_id
# define FS1_TIMER_BIT TIMER0bit
# define FS2_TIMER_BIT TIMER1bit
#endif
/*
* Timer Configuration Register Bits
*/
#define TIMER_ERR 0xC000
#define TIMER_ERR_OVFL 0x4000
#define TIMER_ERR_PROG_PER 0x8000
#define TIMER_ERR_PROG_PW 0xC000
#define TIMER_EMU_RUN 0x0200
#define TIMER_TOGGLE_HI 0x0100
#define TIMER_CLK_SEL 0x0080
#define TIMER_OUT_DIS 0x0040
#define TIMER_TIN_SEL 0x0020
#define TIMER_IRQ_ENA 0x0010
#define TIMER_PERIOD_CNT 0x0008
#define TIMER_PULSE_HI 0x0004
#define TIMER_MODE 0x0003
#define TIMER_MODE_PWM 0x0001
#define TIMER_MODE_WDTH 0x0002
#define TIMER_MODE_EXT_CLK 0x0003
/*
* Timer Status Register Bits
*/
#define TIMER_STATUS_TIMIL0 0x0001
#define TIMER_STATUS_TIMIL1 0x0002
#define TIMER_STATUS_TIMIL2 0x0004
#define TIMER_STATUS_TIMIL3 0x00000008
#define TIMER_STATUS_TIMIL4 0x00010000
#define TIMER_STATUS_TIMIL5 0x00020000
#define TIMER_STATUS_TIMIL6 0x00040000
#define TIMER_STATUS_TIMIL7 0x00080000
#define TIMER_STATUS_TIMIL8 0x0001
#define TIMER_STATUS_TIMIL9 0x0002
#define TIMER_STATUS_TIMIL10 0x0004
#define TIMER_STATUS_TIMIL11 0x0008
#define TIMER_STATUS_TOVF0 0x0010 /* timer 0 overflow error */
#define TIMER_STATUS_TOVF1 0x0020
#define TIMER_STATUS_TOVF2 0x0040
#define TIMER_STATUS_TOVF3 0x00000080
#define TIMER_STATUS_TOVF4 0x00100000
#define TIMER_STATUS_TOVF5 0x00200000
#define TIMER_STATUS_TOVF6 0x00400000
#define TIMER_STATUS_TOVF7 0x00800000
#define TIMER_STATUS_TOVF8 0x0010
#define TIMER_STATUS_TOVF9 0x0020
#define TIMER_STATUS_TOVF10 0x0040
#define TIMER_STATUS_TOVF11 0x0080
/*
* Timer Slave Enable Status : write 1 to clear
*/
#define TIMER_STATUS_TRUN0 0x1000
#define TIMER_STATUS_TRUN1 0x2000
#define TIMER_STATUS_TRUN2 0x4000
#define TIMER_STATUS_TRUN3 0x00008000
#define TIMER_STATUS_TRUN4 0x10000000
#define TIMER_STATUS_TRUN5 0x20000000
#define TIMER_STATUS_TRUN6 0x40000000
#define TIMER_STATUS_TRUN7 0x80000000
#define TIMER_STATUS_TRUN 0xF000F000
#define TIMER_STATUS_TRUN8 0x1000
#define TIMER_STATUS_TRUN9 0x2000
#define TIMER_STATUS_TRUN10 0x4000
#define TIMER_STATUS_TRUN11 0x8000
/* The actual gptimer API */
void set_gptimer_pwidth(unsigned int timer_id, uint32_t width);
uint32_t get_gptimer_pwidth(unsigned int timer_id);
void set_gptimer_period(unsigned int timer_id, uint32_t period);
uint32_t get_gptimer_period(unsigned int timer_id);
uint32_t get_gptimer_count(unsigned int timer_id);
int get_gptimer_intr(unsigned int timer_id);
void clear_gptimer_intr(unsigned int timer_id);
int get_gptimer_over(unsigned int timer_id);
void clear_gptimer_over(unsigned int timer_id);
void set_gptimer_config(unsigned int timer_id, uint16_t config);
uint16_t get_gptimer_config(unsigned int timer_id);
int get_gptimer_run(unsigned int timer_id);
void set_gptimer_pulse_hi(unsigned int timer_id);
void clear_gptimer_pulse_hi(unsigned int timer_id);
void enable_gptimers(uint16_t mask);
void disable_gptimers(uint16_t mask);
void disable_gptimers_sync(uint16_t mask);
uint16_t get_enabled_gptimers(void);
uint32_t get_gptimer_status(unsigned int group);
void set_gptimer_status(unsigned int group, uint32_t value);
static inline void enable_gptimer(unsigned int timer_id)
{
enable_gptimers(1 << timer_id);
}
static inline void disable_gptimer(unsigned int timer_id)
{
disable_gptimers(1 << timer_id);
}
/*
* All Blackfin system MMRs are padded to 32bits even if the register
* itself is only 16bits. So use a helper macro to streamline this.
*/
#define __BFP(m) u16 m; u16 __pad_##m
/*
* bfin timer registers layout
*/
struct bfin_gptimer_regs {
__BFP(config);
u32 counter;
u32 period;
u32 width;
};
/*
* bfin group timer registers layout
*/
struct bfin_gptimer_group_regs {
__BFP(enable);
__BFP(disable);
u32 status;
};
#undef __BFP
#endif
|
