2 * OMAP Dual-Mode Timers
4 * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/
5 * Tarun Kanti DebBarma <tarun.kanti@ti.com>
6 * Thara Gopinath <thara@ti.com>
8 * Platform device conversion and hwmod support.
10 * Copyright (C) 2005 Nokia Corporation
11 * Author: Lauri Leukkunen <lauri.leukkunen@nokia.com>
12 * PWM and clock framwork support by Timo Teras.
14 * This program is free software; you can redistribute it and/or modify it
15 * under the terms of the GNU General Public License as published by the
16 * Free Software Foundation; either version 2 of the License, or (at your
17 * option) any later version.
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
22 * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 * You should have received a copy of the GNU General Public License along
29 * with this program; if not, write to the Free Software Foundation, Inc.,
30 * 675 Mass Ave, Cambridge, MA 02139, USA.
33 #include <linux/delay.h>
35 #include <linux/platform_device.h>
37 #ifndef __CLOCKSOURCE_DMTIMER_H
38 #define __CLOCKSOURCE_DMTIMER_H
41 #define OMAP_TIMER_SRC_SYS_CLK 0x00
42 #define OMAP_TIMER_SRC_32_KHZ 0x01
43 #define OMAP_TIMER_SRC_EXT_CLK 0x02
45 /* timer interrupt enable bits */
46 #define OMAP_TIMER_INT_CAPTURE (1 << 2)
47 #define OMAP_TIMER_INT_OVERFLOW (1 << 1)
48 #define OMAP_TIMER_INT_MATCH (1 << 0)
51 #define OMAP_TIMER_TRIGGER_NONE 0x00
52 #define OMAP_TIMER_TRIGGER_OVERFLOW 0x01
53 #define OMAP_TIMER_TRIGGER_OVERFLOW_AND_COMPARE 0x02
55 /* timer capabilities used in hwmod database */
56 #define OMAP_TIMER_SECURE 0x80000000
57 #define OMAP_TIMER_ALWON 0x40000000
58 #define OMAP_TIMER_HAS_PWM 0x20000000
59 #define OMAP_TIMER_NEEDS_RESET 0x10000000
60 #define OMAP_TIMER_HAS_DSP_IRQ 0x08000000
62 struct omap_dm_timer {
65 int omap_dm_timer_get_irq(struct omap_dm_timer *timer);
67 u32 omap_dm_timer_modify_idlect_mask(u32 inputmask);
70 * Do not use the defines below, they are not needed. They should be only
71 * used by dmtimer.c and sys_timer related code.
75 * The interrupt registers are different between v1 and v2 ip.
76 * These registers are offsets from timer->iobase.
78 #define OMAP_TIMER_ID_OFFSET 0x00
79 #define OMAP_TIMER_OCP_CFG_OFFSET 0x10
81 #define OMAP_TIMER_V1_SYS_STAT_OFFSET 0x14
82 #define OMAP_TIMER_V1_STAT_OFFSET 0x18
83 #define OMAP_TIMER_V1_INT_EN_OFFSET 0x1c
85 #define OMAP_TIMER_V2_IRQSTATUS_RAW 0x24
86 #define OMAP_TIMER_V2_IRQSTATUS 0x28
87 #define OMAP_TIMER_V2_IRQENABLE_SET 0x2c
88 #define OMAP_TIMER_V2_IRQENABLE_CLR 0x30
91 * The functional registers have a different base on v1 and v2 ip.
92 * These registers are offsets from timer->func_base. The func_base
93 * is samae as io_base for v1 and io_base + 0x14 for v2 ip.
96 #define OMAP_TIMER_V2_FUNC_OFFSET 0x14
98 #define _OMAP_TIMER_WAKEUP_EN_OFFSET 0x20
99 #define _OMAP_TIMER_CTRL_OFFSET 0x24
100 #define OMAP_TIMER_CTRL_GPOCFG (1 << 14)
101 #define OMAP_TIMER_CTRL_CAPTMODE (1 << 13)
102 #define OMAP_TIMER_CTRL_PT (1 << 12)
103 #define OMAP_TIMER_CTRL_TCM_LOWTOHIGH (0x1 << 8)
104 #define OMAP_TIMER_CTRL_TCM_HIGHTOLOW (0x2 << 8)
105 #define OMAP_TIMER_CTRL_TCM_BOTHEDGES (0x3 << 8)
106 #define OMAP_TIMER_CTRL_SCPWM (1 << 7)
107 #define OMAP_TIMER_CTRL_CE (1 << 6) /* compare enable */
108 #define OMAP_TIMER_CTRL_PRE (1 << 5) /* prescaler enable */
109 #define OMAP_TIMER_CTRL_PTV_SHIFT 2 /* prescaler value shift */
110 #define OMAP_TIMER_CTRL_POSTED (1 << 2)
111 #define OMAP_TIMER_CTRL_AR (1 << 1) /* auto-reload enable */
112 #define OMAP_TIMER_CTRL_ST (1 << 0) /* start timer */
113 #define _OMAP_TIMER_COUNTER_OFFSET 0x28
114 #define _OMAP_TIMER_LOAD_OFFSET 0x2c
115 #define _OMAP_TIMER_TRIGGER_OFFSET 0x30
116 #define _OMAP_TIMER_WRITE_PEND_OFFSET 0x34
117 #define WP_NONE 0 /* no write pending bit */
118 #define WP_TCLR (1 << 0)
119 #define WP_TCRR (1 << 1)
120 #define WP_TLDR (1 << 2)
121 #define WP_TTGR (1 << 3)
122 #define WP_TMAR (1 << 4)
123 #define WP_TPIR (1 << 5)
124 #define WP_TNIR (1 << 6)
125 #define WP_TCVR (1 << 7)
126 #define WP_TOCR (1 << 8)
127 #define WP_TOWR (1 << 9)
128 #define _OMAP_TIMER_MATCH_OFFSET 0x38
129 #define _OMAP_TIMER_CAPTURE_OFFSET 0x3c
130 #define _OMAP_TIMER_IF_CTRL_OFFSET 0x40
131 #define _OMAP_TIMER_CAPTURE2_OFFSET 0x44 /* TCAR2, 34xx only */
132 #define _OMAP_TIMER_TICK_POS_OFFSET 0x48 /* TPIR, 34xx only */
133 #define _OMAP_TIMER_TICK_NEG_OFFSET 0x4c /* TNIR, 34xx only */
134 #define _OMAP_TIMER_TICK_COUNT_OFFSET 0x50 /* TCVR, 34xx only */
135 #define _OMAP_TIMER_TICK_INT_MASK_SET_OFFSET 0x54 /* TOCR, 34xx only */
136 #define _OMAP_TIMER_TICK_INT_MASK_COUNT_OFFSET 0x58 /* TOWR, 34xx only */
138 #endif /* __CLOCKSOURCE_DMTIMER_H */