arch/powerpc/boot/cuboot-ebony.c

   1 /*
   2  * Old U-boot compatibility for Ebony
   3  *
   4  * Author: David Gibson <david@gibson.dropbear.id.au>
   5  *
   6  * Copyright 2007 David Gibson, IBM Corporatio.
   7  *   Based on cuboot-83xx.c, which is:
   8  * Copyright (c) 2007 Freescale Semiconductor, Inc.
   9  *
  10  * This program is free software; you can redistribute it and/or modify it
  11  * under the terms of the GNU General Public License version 2 as published
  12  * by the Free Software Foundation.
  13  */
  14
  15 #include "ops.h"
  16 #include "stdio.h"
  17 #include "44x.h"
  18
  19 #define TARGET_44x
  20 #include "ppcboot.h"
  21
  22 static bd_t bd;
  23 extern char _end[];
  24
  25 BSS_STACK(4096);
  26
  27 void platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  28                    unsigned long r6, unsigned long r7)
  29 {
  30         unsigned long end_of_ram = bd.bi_memstart + bd.bi_memsize;
  31         unsigned long avail_ram = end_of_ram - (unsigned long)_end;
  32
  33         memcpy(&bd, (bd_t *)r3, sizeof(bd));
  34         loader_info.initrd_addr = r4;
  35         loader_info.initrd_size = r4 ? r5 : 0;
  36         loader_info.cmdline = (char *)r6;
  37         loader_info.cmdline_len = r7 - r6;
  38
  39         simple_alloc_init(_end, avail_ram, 32, 64);
  40
  41         ebony_init(&bd.bi_enetaddr, &bd.bi_enet1addr);
  42 }