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  1. /*
  2.  * Copyright (c) 2005 Martin Decky
  3.  * All rights reserved.
  4.  *
  5.  * Redistribution and use in source and binary forms, with or without
  6.  * modification, are permitted provided that the following conditions
  7.  * are met:
  8.  *
  9.  * - Redistributions of source code must retain the above copyright
  10.  *   notice, this list of conditions and the following disclaimer.
  11.  * - Redistributions in binary form must reproduce the above copyright
  12.  *   notice, this list of conditions and the following disclaimer in the
  13.  *   documentation and/or other materials provided with the distribution.
  14.  * - The name of the author may not be used to endorse or promote products
  15.  *   derived from this software without specific prior written permission.
  16.  *
  17.  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18.  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22.  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23.  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24.  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25.  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27.  */
  28.  
  29.  
  30. /** @addtogroup arm32boot
  31.  * @{
  32.  */
  33. /** @file
  34.  *  @brief Boot related declarations.
  35.  */
  36.  
  37.  
  38. #ifndef BOOT_arm32_MAIN_H
  39. #define BOOT_arm32_MAIN_H
  40.  
  41.  
  42. /** Aligns to the nearest higher address.
  43.  *
  44.  * @param addr  Address or number to be aligned.
  45.  * @param align Size of alignment, must be power of 2.
  46.  */
  47. #define ALIGN_UP(addr, align) (((addr) + ((align) - 1)) & ~((align) - 1))
  48.  
  49. /** Maximum number of tasks in the #bootinfo_t struct. */
  50. #define TASKMAP_MAX_RECORDS 32
  51.  
  52.  
  53. /** Struct holding information about single loaded task. */
  54. typedef struct {
  55.     /** Address where the task was placed. */
  56.     void *addr;
  57.     /** Size of the task's binary. */
  58.     unsigned int size;
  59. } task_t;
  60.  
  61.  
  62. /** Struct holding information about loaded tasks. */
  63. typedef struct {
  64.     /** Number of loaded tasks. */
  65.     unsigned int cnt;
  66.     /** Array of loaded tasks. */
  67.     task_t tasks[TASKMAP_MAX_RECORDS];
  68. } bootinfo_t;
  69.  
  70.  
  71. /** Called when the CPU is switched on.
  72.  *
  73.  *  Implemented in assembly. Jumps to the #bootstrap only.
  74.  */
  75. extern void start(void);
  76.  
  77. extern void bootstrap(void);
  78.  
  79. #endif
  80.  
  81. /** @}
  82.  */
  83.  
  84.