Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / powerpc / boot / treeboot-iss4xx.c
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1/*
2 * Copyright 2010 Ben. Herrenschmidt, IBM Corporation.
3 *
4 * Based on earlier code:
5 * Copyright (C) Paul Mackerras 1997.
6 *
7 * Matt Porter <mporter@kernel.crashing.org>
8 * Copyright 2002-2005 MontaVista Software Inc.
9 *
10 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
11 * Copyright (c) 2003, 2004 Zultys Technologies
12 *
13 * Copyright 2007 David Gibson, IBM Corporation.
14 *
15 * This program is free software; you can redistribute it and/or
16 * modify it under the terms of the GNU General Public License
17 * as published by the Free Software Foundation; either version
18 * 2 of the License, or (at your option) any later version.
19 */
20#include <stdarg.h>
21#include <stddef.h>
22#include "types.h"
23#include "elf.h"
24#include "string.h"
25#include "stdio.h"
26#include "page.h"
27#include "ops.h"
28#include "reg.h"
29#include "io.h"
30#include "dcr.h"
31#include "4xx.h"
32#include "44x.h"
33#include "libfdt.h"
34
35BSS_STACK(4096);
36
37static void iss_4xx_fixups(void)
38{
39 ibm4xx_sdram_fixup_memsize();
40}
41
42#define SPRN_PIR 0x11E /* Processor Indentification Register */
43void platform_init(void)
44{
45 unsigned long end_of_ram = 0x08000000;
46 unsigned long avail_ram = end_of_ram - (unsigned long)_end;
47 u32 pir_reg;
48
49 simple_alloc_init(_end, avail_ram, 128, 64);
50 platform_ops.fixups = iss_4xx_fixups;
51 platform_ops.exit = ibm44x_dbcr_reset;
52 pir_reg = mfspr(SPRN_PIR);
53 fdt_set_boot_cpuid_phys(_dtb_start, pir_reg);
54 fdt_init(_dtb_start);
55 serial_console_init();
56}