firmware/target/arm/imx233/timrot-imx233.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2011 by Amaury Pouly
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21 #ifndef TIMROT_IMX233_H
  22 #define TIMROT_IMX233_H
  23
  24 #include "system.h"
  25 #include "cpu.h"
  26
  27 #define HW_TIMROT_BASE          0x80068000
  28
  29 #define HW_TIMROT_ROTCTRL       (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x0))
  30
  31 #define HW_TIMROT_ROTCOUNT      (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x10))
  32
  33 #define HW_TIMROT_TIMCTRL(i)    (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x20 + (i) * 0x20))
  34 #define HW_TIMROT_TIMCTRL__IRQ      (1 << 15)
  35 #define HW_TIMROT_TIMCTRL__IRQ_EN   (1 << 14)
  36 #define HW_TIMROT_TIMCTRL__POLARITY (1 << 8)
  37 #define HW_TIMROT_TIMCTRL__UPDATE   (1 << 7)
  38 #define HW_TIMROT_TIMCTRL__RELOAD   (1 << 6)
  39 #define HW_TIMROT_TIMCTRL__PRESCALE_1   (0 << 4)
  40 #define HW_TIMROT_TIMCTRL__PRESCALE_2   (1 << 4)
  41 #define HW_TIMROT_TIMCTRL__PRESCALE_4   (2 << 4)
  42 #define HW_TIMROT_TIMCTRL__PRESCALE_8   (3 << 4)
  43 #define HW_TIMROT_TIMCTRL__SELECT_32KHZ_XTAL    8
  44 #define HW_TIMROT_TIMCTRL__SELECT_8KHZ_XTAL     9
  45 #define HW_TIMROT_TIMCTRL__SELECT_4KHZ_XTAL     10
  46 #define HW_TIMROT_TIMCTRL__SELECT_1KHZ_XTAL     11
  47 #define HW_TIMROT_TIMCTRL__SELECT_TICK_ALWAYS   12
  48
  49 #define HW_TIMROT_TIMCOUNT(i)   (*(volatile uint32_t *)(HW_TIMROT_BASE + 0x30 + (i) * 0x20))
  50
  51 typedef void (*imx233_timer_fn_t)(void);
  52
  53 void imx233_timrot_init(void);
  54 void imx233_setup_timer(unsigned timer_nr, bool reload, unsigned count,
  55     unsigned src, unsigned prescale, bool polarity, imx233_timer_fn_t fn);
  56
  57 #endif /* TIMROT_IMX233_H */