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RIOT/cpu/x86/x86_startup.c 2.07 KB
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  /*
   * Copyright (C) 2014  René Kijewski  <rene.kijewski@fu-berlin.de>
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
   */
  
  /**
   * @ingroup     x86
   * @{
   *
   * @file
   * @brief       The common startup code for the x86 port.
   *
   * @author      René Kijewski <rene.kijewski@fu-berlin.de>
   *
   * @}
   */
  
  #include "x86_interrupts.h"
  #include "x86_memory.h"
  #include "x86_pci.h"
  #include "x86_pic.h"
  #include "x86_pit.h"
  #include "x86_rtc.h"
  #include "x86_threading.h"
  #include "x86_uart.h"
  
  #include <cpu.h>
  #include <tlsf-malloc.h>
  
  #include <stdio.h>
  
  #include "kernel_init.h"
  
  /* Must be <= 0x1000 because otherwise x86_map_physical_pages() might get a page out of this pool.
   * Because static memory has the PT_G flag, flushing the TLB would cause a stale PT
   * after calling add_pages_to_pool() in x86_map_physical_pages().
   */
  static char early_malloc_pool[0x1000] __attribute__((aligned(4)));
  
  void x86_startup(void)
  {
      tlsf_create_with_pool(early_malloc_pool, sizeof early_malloc_pool);
  
      x86_early_init_uart();
      x86_init_threading();
      x86_init_interrupts();
      x86_init_pic();
      x86_init_uart();
      x86_init_memory();
      x86_init_rtc();
      x86_init_pit();
      x86_init_pci();
      puts("RIOT x86 hardware initialization complete.");
  
      x86_init_board();
      puts("RIOT board initialization complete.");
  
      kernel_init(); /* should not return */
      puts("kernel_init returned");
      x86_hlt();
  }