blob: 32e9e9492841ac600f68fb4bf07dfb35218837e3 [file] [log] [blame]
Kim Phillipsb3590492007-02-07 22:19:12 -06001/*
2 * arch/powerpc/platforms/83xx/mpc8313_rdb.c
3 *
4 * Description: MPC8313x 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
18#include <asm/time.h>
19#include <asm/ipic.h>
20#include <asm/udbg.h>
21
22#include "mpc83xx.h"
23
24#undef DEBUG
25#ifdef DEBUG
26#define DBG(fmt...) udbg_printf(fmt)
27#else
28#define DBG(fmt...)
29#endif
30
31#ifndef CONFIG_PCI
32unsigned long isa_io_base = 0;
33unsigned long isa_mem_base = 0;
34#endif
35
36/* ************************************************************************
37 *
38 * Setup the architecture
39 *
40 */
41static void __init mpc8313_rdb_setup_arch(void)
42{
43 struct device_node *np;
44
45 if (ppc_md.progress)
46 ppc_md.progress("mpc8313_rdb_setup_arch()", 0);
47
48#ifdef CONFIG_PCI
49 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
50 add_bridge(np);
51
52 ppc_md.pci_exclude_device = mpc83xx_exclude_device;
53#endif
54}
55
56void __init mpc8313_rdb_init_IRQ(void)
57{
58 struct device_node *np;
59
60 np = of_find_node_by_type(NULL, "ipic");
61 if (!np)
62 return;
63
64 ipic_init(np, 0);
65
66 /* Initialize the default interrupt mapping priorities,
67 * in case the boot rom changed something on us.
68 */
69 ipic_set_default_priority();
70}
71
72/*
73 * Called very early, MMU is off, device-tree isn't unflattened
74 */
75static int __init mpc8313_rdb_probe(void)
76{
Kumar Gala336c3c22007-02-17 09:10:44 -060077 unsigned long root = of_get_flat_dt_root();
Kim Phillipsb3590492007-02-07 22:19:12 -060078
Kumar Gala336c3c22007-02-17 09:10:44 -060079 return of_flat_dt_is_compatible(root, "MPC8313ERDB");
Kim Phillipsb3590492007-02-07 22:19:12 -060080}
81
82define_machine(mpc8313_rdb) {
83 .name = "MPC8313 RDB",
84 .probe = mpc8313_rdb_probe,
85 .setup_arch = mpc8313_rdb_setup_arch,
86 .init_IRQ = mpc8313_rdb_init_IRQ,
87 .get_irq = ipic_get_irq,
88 .restart = mpc83xx_restart,
89 .time_init = mpc83xx_time_init,
90 .calibrate_decr = generic_calibrate_decr,
91 .progress = udbg_progress,
92};