include/soc/arc/timers.h

   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