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545c069c JB |
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 <asm/machdep.h> | |
21 | #include <asm/prom.h> | |
22 | #include <asm/udbg.h> | |
23 | #include <asm/time.h> | |
24 | #include <asm/uic.h> | |
25 | #include <asm/of_platform.h> | |
26 | ||
27 | static struct of_device_id walnut_of_bus[] = { | |
28 | { .compatible = "ibm,plb3", }, | |
29 | { .compatible = "ibm,opb", }, | |
30 | { .compatible = "ibm,ebc", }, | |
31 | {}, | |
32 | }; | |
33 | ||
34 | static int __init walnut_device_probe(void) | |
35 | { | |
36 | if (!machine_is(walnut)) | |
37 | return 0; | |
38 | ||
39 | /* FIXME: do bus probe here */ | |
40 | of_platform_bus_probe(NULL, walnut_of_bus, NULL); | |
41 | ||
42 | return 0; | |
43 | } | |
44 | device_initcall(walnut_device_probe); | |
45 | ||
46 | static int __init walnut_probe(void) | |
47 | { | |
48 | unsigned long root = of_get_flat_dt_root(); | |
49 | ||
50 | if (!of_flat_dt_is_compatible(root, "ibm,walnut")) | |
51 | return 0; | |
52 | ||
53 | return 1; | |
54 | } | |
55 | ||
56 | static void __init walnut_setup_arch(void) | |
57 | { | |
58 | } | |
59 | ||
60 | define_machine(walnut) { | |
61 | .name = "Walnut", | |
62 | .probe = walnut_probe, | |
63 | .setup_arch = walnut_setup_arch, | |
64 | .progress = udbg_progress, | |
65 | .init_IRQ = uic_init_tree, | |
66 | .get_irq = uic_get_irq, | |
67 | .calibrate_decr = generic_calibrate_decr, | |
68 | }; |