Merge branch 'drivers-platform' into release
[linux-2.6] / arch / powerpc / platforms / 83xx / mpc831x_rdb.c
1 /*
2  * arch/powerpc/platforms/83xx/mpc831x_rdb.c
3  *
4  * Description: MPC831x RDB board specific routines.
5  * This file is based on mpc834x_sys.c
6  * Author: Lo Wlison <r43300@freescale.com>
7  *
8  * Copyright (C) Freescale Semiconductor, Inc. 2006. All rights reserved.
9  *
10  * This program is free software; you can redistribute  it and/or modify it
11  * under  the terms of  the GNU General  Public License as published by the
12  * Free Software Foundation;  either version 2 of the  License, or (at your
13  * option) any later version.
14  */
15
16 #include <linux/pci.h>
17 #include <linux/of_platform.h>
18
19 #include <asm/time.h>
20 #include <asm/ipic.h>
21 #include <asm/udbg.h>
22 #include <sysdev/fsl_pci.h>
23
24 #include "mpc83xx.h"
25
26 /*
27  * Setup the architecture
28  */
29 static void __init mpc831x_rdb_setup_arch(void)
30 {
31 #ifdef CONFIG_PCI
32         struct device_node *np;
33 #endif
34
35         if (ppc_md.progress)
36                 ppc_md.progress("mpc831x_rdb_setup_arch()", 0);
37
38 #ifdef CONFIG_PCI
39         for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
40                 mpc83xx_add_bridge(np);
41 #endif
42         mpc831x_usb_cfg();
43 }
44
45 static void __init mpc831x_rdb_init_IRQ(void)
46 {
47         struct device_node *np;
48
49         np = of_find_node_by_type(NULL, "ipic");
50         if (!np)
51                 return;
52
53         ipic_init(np, 0);
54
55         /* Initialize the default interrupt mapping priorities,
56          * in case the boot rom changed something on us.
57          */
58         ipic_set_default_priority();
59 }
60
61 /*
62  * Called very early, MMU is off, device-tree isn't unflattened
63  */
64 static int __init mpc831x_rdb_probe(void)
65 {
66         unsigned long root = of_get_flat_dt_root();
67
68         return of_flat_dt_is_compatible(root, "MPC8313ERDB") ||
69                of_flat_dt_is_compatible(root, "fsl,mpc8315erdb");
70 }
71
72 static struct of_device_id __initdata of_bus_ids[] = {
73         { .compatible = "simple-bus" },
74         {},
75 };
76
77 static int __init declare_of_platform_devices(void)
78 {
79         of_platform_bus_probe(NULL, of_bus_ids, NULL);
80         return 0;
81 }
82 machine_device_initcall(mpc831x_rdb, declare_of_platform_devices);
83
84 define_machine(mpc831x_rdb) {
85         .name                   = "MPC831x RDB",
86         .probe                  = mpc831x_rdb_probe,
87         .setup_arch             = mpc831x_rdb_setup_arch,
88         .init_IRQ               = mpc831x_rdb_init_IRQ,
89         .get_irq                = ipic_get_irq,
90         .restart                = mpc83xx_restart,
91         .time_init              = mpc83xx_time_init,
92         .calibrate_decr         = generic_calibrate_decr,
93         .progress               = udbg_progress,
94 };