release/src-rt-6.x/linux/linux-2.6/arch/powerpc/boot/holly.c

   1 /*
   2  * Copyright 2007 IBM Corporation
   3  *
   4  * Stephen Winiecki <stevewin@us.ibm.com>
   5  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
   6  *
   7  * Based on earlier code:
   8  * Copyright (C) Paul Mackerras 1997.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * version 2 as published by the Free Software Foundation.
  13  */
  14 #include <stdarg.h>
  15 #include <stddef.h>
  16 #include "types.h"
  17 #include "elf.h"
  18 #include "string.h"
  19 #include "stdio.h"
  20 #include "page.h"
  21 #include "ops.h"
  22 #include "io.h"
  23
  24 extern char _start[];
  25 extern char _end[];
  26 extern char _dtb_start[];
  27 extern char _dtb_end[];
  28
  29 BSS_STACK(4096);
  30
  31 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5)
  32 {
  33         u32 heapsize = 0x8000000 - (u32)_end; /* 128M */
  34
  35         simple_alloc_init(_end, heapsize, 32, 64);
  36         ft_init(_dtb_start, 0, 4);
  37         serial_console_init();
  38 }