1 /*
2  * Copyright (C) 2016-17 Synopsys, Inc. (www.synopsys.com)
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License version 2 as
6  * published by the Free Software Foundation.
7  */
8 
9 #ifndef __SOC_ARC_TIMERS_H
10 #define __SOC_ARC_TIMERS_H
11 
12 #include <soc/arc/aux.h>
13 
14 /* Timer related Aux registers */
15 #define ARC_REG_TIMER0_LIMIT	0x23	/* timer 0 limit */
16 #define ARC_REG_TIMER0_CTRL	0x22	/* timer 0 control */
17 #define ARC_REG_TIMER0_CNT	0x21	/* timer 0 count */
18 #define ARC_REG_TIMER1_LIMIT	0x102	/* timer 1 limit */
19 #define ARC_REG_TIMER1_CTRL	0x101	/* timer 1 control */
20 #define ARC_REG_TIMER1_CNT	0x100	/* timer 1 count */
21 
22 /* CTRL reg bits */
23 #define TIMER_CTRL_IE	        (1 << 0) /* Interrupt when Count reaches limit */
24 #define TIMER_CTRL_NH	        (1 << 1) /* Count only when CPU NOT halted */
25 
26 #define ARC_TIMERN_MAX		0xFFFFFFFF
27 
28 #define ARC_REG_TIMERS_BCR	0x75
29 
30 struct bcr_timer {
31 #ifdef CONFIG_CPU_BIG_ENDIAN
32 	unsigned int pad2:15, rtsc:1, pad1:5, rtc:1, t1:1, t0:1, ver:8;
33 #else
34 	unsigned int ver:8, t0:1, t1:1, rtc:1, pad1:5, rtsc:1, pad2:15;
35 #endif
36 };
37 
38 #endif
39