include/soc/arc/timers.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Copyright (C) 2016-17 Synopsys, Inc. (www.synopsys.com)
   4  */
   5
   6 #ifndef __SOC_ARC_TIMERS_H
   7 #define __SOC_ARC_TIMERS_H
   8
   9 #include <soc/arc/aux.h>
  10
  11 /* Timer related Aux registers */
  12 #define ARC_REG_TIMER0_LIMIT    0x23    /* timer 0 limit */
  13 #define ARC_REG_TIMER0_CTRL     0x22    /* timer 0 control */
  14 #define ARC_REG_TIMER0_CNT      0x21    /* timer 0 count */
  15 #define ARC_REG_TIMER1_LIMIT    0x102   /* timer 1 limit */
  16 #define ARC_REG_TIMER1_CTRL     0x101   /* timer 1 control */
  17 #define ARC_REG_TIMER1_CNT      0x100   /* timer 1 count */
  18
  19 /* CTRL reg bits */
  20 #define TIMER_CTRL_IE           (1 << 0) /* Interrupt when Count reaches limit */
  21 #define TIMER_CTRL_NH           (1 << 1) /* Count only when CPU NOT halted */
  22
  23 #define ARC_TIMERN_MAX          0xFFFFFFFF
  24
  25 #define ARC_REG_TIMERS_BCR      0x75
  26
  27 struct bcr_timer {
  28 #ifdef CONFIG_CPU_BIG_ENDIAN
  29         unsigned int pad2:15, rtsc:1, pad1:5, rtc:1, t1:1, t0:1, ver:8;
  30 #else
  31         unsigned int ver:8, t0:1, t1:1, rtc:1, pad1:5, rtsc:1, pad2:15;
  32 #endif
  33 };
  34
  35 #endif