LXR uboot/arch/arm/include/asm/arch-lpc32xx/timer.h

   1/*
   2 * Copyright (C) 2011 by Vladimir Zapolskiy <vz@mleia.com>
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#ifndef _LPC32XX_TIMER_H
   8#define _LPC32XX_TIMER_H
   9
  10#include <asm/types.h>
  11
  12/* Timer/Counter Registers */
  13struct timer_regs {
  14        u32 ir;                 /* Interrupt Register           */
  15        u32 tcr;                /* Timer Control Register       */
  16        u32 tc;                 /* Timer Counter                */
  17        u32 pr;                 /* Prescale Register            */
  18        u32 pc;                 /* Prescale Counter             */
  19        u32 mcr;                /* Match Control Register       */
  20        u32 mr[4];              /* Match Registers              */
  21        u32 ccr;                /* Capture Control Register     */
  22        u32 cr[4];              /* Capture Registers            */
  23        u32 emr;                /* External Match Register      */
  24        u32 reserved[12];
  25        u32 ctcr;               /* Count Control Register       */
  26};
  27
  28/* Timer/Counter Interrupt Register bits */
  29#define TIMER_IR_CR(n)                  (1 << ((n) + 4))
  30#define TIMER_IR_MR(n)                  (1 << (n))
  31
  32/* Timer/Counter Timer Control Register bits */
  33#define TIMER_TCR_COUNTER_RESET         (1 << 1)
  34#define TIMER_TCR_COUNTER_ENABLE        (1 << 0)
  35#define TIMER_TCR_COUNTER_DISABLE       (0 << 0)
  36
  37/* Timer/Counter Match Control Register bits */
  38#define TIMER_MCR_STOP(n)               (1 << (3 * (n) + 2))
  39#define TIMER_MCR_RESET(n)              (1 << (3 * (n) + 1))
  40#define TIMER_MCR_INTERRUPT(n)          (1 << (3 * (n)))
  41
  42/* Timer/Counter Capture Control Register bits */
  43#define TIMER_CCR_INTERRUPT(n)          (1 << (3 * (n) + 2))
  44#define TIMER_CCR_FALLING_EDGE(n)       (1 << (3 * (n) + 1))
  45#define TIMER_CCR_RISING_EDGE(n)        (1 << (3 * (n)))
  46
  47/* Timer/Counter External Match Register bits */
  48#define TIMER_EMR_EMC_TOGGLE(n)         (0x3 << (2 * (n) + 4))
  49#define TIMER_EMR_EMC_SET(n)            (0x2 << (2 * (n) + 4))
  50#define TIMER_EMR_EMC_CLEAR(n)          (0x1 << (2 * (n) + 4))
  51#define TIMER_EMR_EMC_NOTHING(n)        (0x0 << (2 * (n) + 4))
  52#define TIMER_EMR_EM(n)                 (1 << (n))
  53
  54/* Timer/Counter Count Control Register bits */
  55#define TIMER_CTCR_INPUT(n)             ((n) << 2)
  56#define TIMER_CTCR_MODE_COUNTER_BOTH    (0x3 << 0)
  57#define TIMER_CTCR_MODE_COUNTER_FALLING (0x2 << 0)
  58#define TIMER_CTCR_MODE_COUNTER_RISING  (0x1 << 0)
  59#define TIMER_CTCR_MODE_TIMER           (0x0 << 0)
  60
  61#endif /* _LPC32XX_TIMER_H */
  62