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1 /*
2  * Ebony board specific routines
3  *
4  * Matt Porter <mporter@kernel.crashing.org>
5  * Copyright 2002-2005 MontaVista Software Inc.
6  *
7  * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
8  * Copyright (c) 2003-2005 Zultys Technologies
9  *
10  * Rewritten and ported to the merged powerpc tree:
11  * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
12  *
13  * This program is free software; you can redistribute  it and/or modify it
14  * under  the terms of  the GNU General  Public License as published by the
15  * Free Software Foundation;  either version 2 of the  License, or (at your
16  * option) any later version.
17  */
18 
19 #include <linux/init.h>
20 #include <linux/of_platform.h>
21 #include <linux/rtc.h>
22 
23 #include <asm/machdep.h>
24 #include <asm/prom.h>
25 #include <asm/udbg.h>
26 #include <asm/time.h>
27 #include <asm/uic.h>
28 #include <asm/pci-bridge.h>
29 #include <asm/ppc4xx.h>
30 
31 static const struct of_device_id ebony_of_bus[] __initconst = {
32 	{ .compatible = "ibm,plb4", },
33 	{ .compatible = "ibm,opb", },
34 	{ .compatible = "ibm,ebc", },
35 	{},
36 };
37 
ebony_device_probe(void)38 static int __init ebony_device_probe(void)
39 {
40 	of_platform_bus_probe(NULL, ebony_of_bus, NULL);
41 	of_instantiate_rtc();
42 
43 	return 0;
44 }
45 machine_device_initcall(ebony, ebony_device_probe);
46 
47 /*
48  * Called very early, MMU is off, device-tree isn't unflattened
49  */
ebony_probe(void)50 static int __init ebony_probe(void)
51 {
52 	unsigned long root = of_get_flat_dt_root();
53 
54 	if (!of_flat_dt_is_compatible(root, "ibm,ebony"))
55 		return 0;
56 
57 	pci_set_flags(PCI_REASSIGN_ALL_RSRC);
58 
59 	return 1;
60 }
61 
define_machine(ebony)62 define_machine(ebony) {
63 	.name			= "Ebony",
64 	.probe			= ebony_probe,
65 	.progress		= udbg_progress,
66 	.init_IRQ		= uic_init_tree,
67 	.get_irq		= uic_get_irq,
68 	.restart		= ppc4xx_reset_system,
69 	.calibrate_decr		= generic_calibrate_decr,
70 };
71