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  1. /*
  2.  * Copyright (C) 2001-2004 Jakub Jermar
  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. #include <arch.h>
  30.  
  31. #include <arch/types.h>
  32. #include <typedefs.h>
  33.  
  34. #include <arch/pm.h>
  35.  
  36. #include <arch/ega.h>
  37. #include <genarch/i8042/i8042.h>
  38. #include <arch/i8254.h>
  39. #include <arch/i8259.h>
  40.  
  41. #include <arch/context.h>
  42.  
  43. #include <config.h>
  44.  
  45. #include <arch/interrupt.h>
  46. #include <arch/asm.h>
  47. #include <genarch/acpi/acpi.h>
  48.  
  49. #include <arch/bios/bios.h>
  50.  
  51. #include <arch/mm/memory_init.h>
  52. #include <interrupt.h>
  53. #include <arch/debugger.h>
  54.  
  55. void arch_pre_mm_init(void)
  56. {
  57.     pm_init();
  58.  
  59.     if (config.cpu_active == 1) {
  60.         bios_init();
  61.         i8259_init();   /* PIC */
  62.         i8254_init();   /* hard clock */
  63.        
  64.         exc_register(VECTOR_SYSCALL, "syscall", (iroutine) syscall);
  65.        
  66.         #ifdef CONFIG_SMP
  67.         exc_register(VECTOR_TLB_SHOOTDOWN_IPI, "tlb_shootdown",
  68.                  (iroutine) tlb_shootdown_ipi);
  69.         #endif /* CONFIG_SMP */
  70.     }
  71. }
  72.  
  73. void arch_post_mm_init(void)
  74. {
  75.     if (config.cpu_active == 1) {
  76.         ega_init(); /* video */
  77.         /* Enable debugger */
  78.         debugger_init();
  79.     }
  80. }
  81.  
  82. void arch_pre_smp_init(void)
  83. {
  84.     if (config.cpu_active == 1) {
  85.         memory_print_map();
  86.        
  87.         #ifdef CONFIG_SMP
  88.         acpi_init();
  89.         #endif /* CONFIG_SMP */
  90.     }
  91. }
  92.  
  93. void arch_post_smp_init(void)
  94. {
  95.     i8042_init();   /* keyboard controller */
  96. }
  97.  
  98. void calibrate_delay_loop(void)
  99. {
  100.     i8254_calibrate_delay_loop();
  101.     if (config.cpu_active == 1) {
  102.         /*
  103.          * This has to be done only on UP.
  104.          * On SMP, i8254 is not used for time keeping and its interrupt pin remains masked.
  105.          */
  106.         i8254_normal_operation();
  107.     }
  108. }
  109.