at91_rstc.h 4.3 KB

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  1. #ifndef _ARCH_ARM_AT91_RSTC_H_
  2. #define _ARCH_ARM_AT91_RSTC_H_
  3. /*
  4. * Copyright (C) 2005-2006 by egnite Software GmbH. All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without
  7. * modification, are permitted provided that the following conditions
  8. * are met:
  9. *
  10. * 1. Redistributions of source code must retain the above copyright
  11. * notice, this list of conditions and the following disclaimer.
  12. * 2. Redistributions in binary form must reproduce the above copyright
  13. * notice, this list of conditions and the following disclaimer in the
  14. * documentation and/or other materials provided with the distribution.
  15. * 3. Neither the name of the copyright holders nor the names of
  16. * contributors may be used to endorse or promote products derived
  17. * from this software without specific prior written permission.
  18. *
  19. * THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
  20. * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21. * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  22. * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
  23. * SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  24. * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  25. * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
  26. * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  27. * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  28. * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
  29. * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30. * SUCH DAMAGE.
  31. *
  32. * For additional information see http://www.ethernut.de/
  33. */
  34. /*!
  35. * \file arch/arm/at91_rstc.h
  36. * \brief AT91 peripherals.
  37. *
  38. * \verbatim
  39. *
  40. * $Log: at91_rstc.h,v $
  41. * Revision 1.2 2006/08/31 19:13:15 haraldkipp
  42. * Wakeup bit and LSB of external reset length added.
  43. *
  44. * Revision 1.1 2006/07/05 07:45:28 haraldkipp
  45. * Split on-chip interface definitions.
  46. *
  47. *
  48. * \endverbatim
  49. */
  50. /*!
  51. * \addtogroup xgNutArchArmAt91Rstc
  52. */
  53. /*@{*/
  54. /*! \name Reset Controller Control Register */
  55. /*@{*/
  56. #define RSTC_CR (RSTC_BASE + 0x00) /*!< \brief Reset controller control register address. */
  57. #define RSTC_PROCRST 0x00000001 /*!< \brief Processor reset. */
  58. #define RSTC_PERRST 0x00000004 /*!< \brief Peripheral reset. */
  59. #define RSTC_EXTRST 0x00000008 /*!< \brief External reset. */
  60. #define RSTC_KEY 0xA5000000 /*!< \brief Password. */
  61. /*@}*/
  62. /*! \name Reset Controller Status Register */
  63. /*@{*/
  64. #define RSTC_SR (RSTC_BASE + 0x04) /*!< \brief Reset controller status register address. */
  65. #define RSTC_URSTS 0x00000001 /*!< \brief User reset status. */
  66. #define RSTC_BODSTS 0x00000002 /*!< \brief Brownout detection status. */
  67. #define RSTC_RSTTYP 0x00000700 /*!< \brief Reset type. */
  68. #define RSTC_RSTTYP_POWERUP 0x00000000 /*!< \brief Power-up reset. */
  69. #define RSTC_RSTTYP_WAKEUP 0x00000100 /*!< \brief VDDCORE rising. */
  70. #define RSTC_RSTTYP_WATCHDOG 0x00000200 /*!< \brief Watchdog reset. */
  71. #define RSTC_RSTTYP_SOFTWARE 0x00000300 /*!< \brief Software reset. */
  72. #define RSTC_RSTTYP_USER 0x00000400 /*!< \brief User reset. */
  73. #define RSTC_RSTTYP_BROWNOUT 0x00000500 /*!< \brief Brownout reset. */
  74. #define RSTC_NRSTL 0x00010000 /*!< \brief NRST pin level. */
  75. #define RSTC_SRCMP 0x00020000 /*!< \brief Software reset command in progress. */
  76. /*@}*/
  77. /*! \name Reset Controller Mode Register */
  78. /*@{*/
  79. #define RSTC_MR (RSTC_BASE + 0x08) /*!< \brief Reset controller mode register address. */
  80. #define RSTC_URSTEN 0x00000001 /*!< \brief User reset enable. */
  81. #define RSTC_URSTIEN 0x00000010 /*!< \brief User reset interrupt enable. */
  82. #define RSTC_ERSTL 0x00000F00 /*!< \brief External reset length. */
  83. #define RSTC_ERSTL_LSB 8 /*!< \brief Least significant bit of external reset length. */
  84. #define RSTC_BODIEN 0x00010000 /*!< \brief Brown-out detection interrupt enable. */
  85. /*@}*/
  86. /*@} xgNutArchArmAt91Rstc */
  87. #endif /* _ARCH_ARM_AT91_RSTC_H_ */