[POWERPC] Make IOMMU code safe for > 132 GB of memory
[linux-2.6] / arch / powerpc / platforms / 44x / rainier.c
1 /*
2  * Rainier board specific routines
3  *
4  * Valentine Barshak <vbarshak@ru.mvista.com>
5  * Copyright 2007 MontaVista Software Inc.
6  *
7  * Based on the Bamboo code by
8  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
9  * Copyright 2007 IBM Corporation
10  *
11  * This program is free software; you can redistribute  it and/or modify it
12  * under  the terms of  the GNU General  Public License as published by the
13  * Free Software Foundation;  either version 2 of the  License, or (at your
14  * option) any later version.
15  */
16 #include <linux/init.h>
17 #include <linux/of_platform.h>
18
19 #include <asm/machdep.h>
20 #include <asm/prom.h>
21 #include <asm/udbg.h>
22 #include <asm/time.h>
23 #include <asm/uic.h>
24 #include <asm/pci-bridge.h>
25 #include "44x.h"
26
27 static __initdata struct of_device_id rainier_of_bus[] = {
28         { .compatible = "ibm,plb4", },
29         { .compatible = "ibm,opb", },
30         { .compatible = "ibm,ebc", },
31         {},
32 };
33
34 static int __init rainier_device_probe(void)
35 {
36         of_platform_bus_probe(NULL, rainier_of_bus, NULL);
37
38         return 0;
39 }
40 machine_device_initcall(rainier, rainier_device_probe);
41
42 static int __init rainier_probe(void)
43 {
44         unsigned long root = of_get_flat_dt_root();
45
46         if (!of_flat_dt_is_compatible(root, "amcc,rainier"))
47                 return 0;
48
49         ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
50
51         return 1;
52 }
53
54 define_machine(rainier) {
55         .name                           = "Rainier",
56         .probe                          = rainier_probe,
57         .progress                       = udbg_progress,
58         .init_IRQ                       = uic_init_tree,
59         .get_irq                        = uic_get_irq,
60         .restart                        = ppc44x_reset_system,
61         .calibrate_decr                 = generic_calibrate_decr,
62 };