Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
[linux-2.6] / arch / powerpc / platforms / 40x / walnut.c
1 /*
2  * Architecture- / platform-specific boot-time initialization code for
3  * IBM PowerPC 4xx based boards. Adapted from original
4  * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek
5  * <dan@net4x.com>.
6  *
7  * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
8  *
9  * Rewritten and ported to the merged powerpc tree:
10  * Copyright 2007 IBM Corporation
11  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
12  *
13  * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
14  * the terms of the GNU General Public License version 2.  This program
15  * is licensed "as is" without any warranty of any kind, whether express
16  * or implied.
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 __initdata struct of_device_id walnut_of_bus[] = {
32         { .compatible = "ibm,plb3", },
33         { .compatible = "ibm,opb", },
34         { .compatible = "ibm,ebc", },
35         {},
36 };
37
38 static int __init walnut_device_probe(void)
39 {
40         of_platform_bus_probe(NULL, walnut_of_bus, NULL);
41         of_instantiate_rtc();
42
43         return 0;
44 }
45 machine_device_initcall(walnut, walnut_device_probe);
46
47 static int __init walnut_probe(void)
48 {
49         unsigned long root = of_get_flat_dt_root();
50
51         if (!of_flat_dt_is_compatible(root, "ibm,walnut"))
52                 return 0;
53
54         ppc_pci_flags = PPC_PCI_REASSIGN_ALL_RSRC;
55
56         return 1;
57 }
58
59 define_machine(walnut) {
60         .name                   = "Walnut",
61         .probe                  = walnut_probe,
62         .progress               = udbg_progress,
63         .init_IRQ               = uic_init_tree,
64         .get_irq                = uic_get_irq,
65         .restart                = ppc4xx_reset_system,
66         .calibrate_decr         = generic_calibrate_decr,
67 };