linux-vybrid_public/arch/powerpc/boot/treeboot-ebony.c

/*
 * Old U-boot compatibility for Ebony
 *
 * Author: David Gibson <david@gibson.dropbear.id.au>
 *
 * Copyright 2007 David Gibson, IBM Corporatio.
 *   Based on cuboot-83xx.c, which is:
 * Copyright (c) 2007 Freescale Semiconductor, Inc.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 */

#include "ops.h"
#include "stdio.h"
#include "44x.h"

extern char _end[];

BSS_STACK(4096);

#define OPENBIOS_MAC_BASE	0xfffffe0c
#define OPENBIOS_MAC_OFFSET	0xc

void platform_init(void)
{
	unsigned long end_of_ram = 0x8000000;
	unsigned long avail_ram = end_of_ram - (unsigned long)_end;

	simple_alloc_init(_end, avail_ram, 32, 64);
	ebony_init((u8 *)OPENBIOS_MAC_BASE,
		   (u8 *)(OPENBIOS_MAC_BASE + OPENBIOS_MAC_OFFSET));
}