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Diffstat (limited to 'arch/powerpc/platforms/83xx/mpc832x_rdb.c')
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_rdb.c138
1 files changed, 138 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
new file mode 100644
index 00000000000..6b71e9ffb11
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -0,0 +1,138 @@
1/*
2 * arch/powerpc/platforms/83xx/mpc832x_rdb.c
3 *
4 * Copyright (C) Freescale Semiconductor, Inc. 2007. All rights reserved.
5 *
6 * Description:
7 * MPC832x RDB board specific routines.
8 * This file is based on mpc832x_mds.c and mpc8313_rdb.c
9 * Author: Michael Barkowski <michael.barkowski@freescale.com>
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
17#include <linux/pci.h>
18
19#include <asm/of_platform.h>
20#include <asm/time.h>
21#include <asm/ipic.h>
22#include <asm/udbg.h>
23#include <asm/qe.h>
24#include <asm/qe_ic.h>
25
26#include "mpc83xx.h"
27
28#undef DEBUG
29#ifdef DEBUG
30#define DBG(fmt...) udbg_printf(fmt)
31#else
32#define DBG(fmt...)
33#endif
34
35#ifndef CONFIG_PCI
36unsigned long isa_io_base = 0;
37unsigned long isa_mem_base = 0;
38#endif
39
40/* ************************************************************************
41 *
42 * Setup the architecture
43 *
44 */
45static void __init mpc832x_rdb_setup_arch(void)
46{
47 struct device_node *np;
48
49 if (ppc_md.progress)
50 ppc_md.progress("mpc832x_rdb_setup_arch()", 0);
51
52#ifdef CONFIG_PCI
53 for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
54 add_bridge(np);
55
56 ppc_md.pci_exclude_device = mpc83xx_exclude_device;
57#endif
58
59#ifdef CONFIG_QUICC_ENGINE
60 qe_reset();
61
62 if ((np = of_find_node_by_name(np, "par_io")) != NULL) {
63 par_io_init(np);
64 of_node_put(np);
65
66 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
67 par_io_of_config(np);
68 }
69#endif /* CONFIG_QUICC_ENGINE */
70}
71
72static struct of_device_id mpc832x_ids[] = {
73 { .type = "soc", },
74 { .compatible = "soc", },
75 { .type = "qe", },
76 {},
77};
78
79static int __init mpc832x_declare_of_platform_devices(void)
80{
81 if (!machine_is(mpc832x_rdb))
82 return 0;
83
84 /* Publish the QE devices */
85 of_platform_bus_probe(NULL, mpc832x_ids, NULL);
86
87 return 0;
88}
89device_initcall(mpc832x_declare_of_platform_devices);
90
91void __init mpc832x_rdb_init_IRQ(void)
92{
93
94 struct device_node *np;
95
96 np = of_find_node_by_type(NULL, "ipic");
97 if (!np)
98 return;
99
100 ipic_init(np, 0);
101
102 /* Initialize the default interrupt mapping priorities,
103 * in case the boot rom changed something on us.
104 */
105 ipic_set_default_priority();
106 of_node_put(np);
107
108#ifdef CONFIG_QUICC_ENGINE
109 np = of_find_node_by_type(NULL, "qeic");
110 if (!np)
111 return;
112
113 qe_ic_init(np, 0);
114 of_node_put(np);
115#endif /* CONFIG_QUICC_ENGINE */
116}
117
118/*
119 * Called very early, MMU is off, device-tree isn't unflattened
120 */
121static int __init mpc832x_rdb_probe(void)
122{
123 unsigned long root = of_get_flat_dt_root();
124
125 return of_flat_dt_is_compatible(root, "MPC832xRDB");
126}
127
128define_machine(mpc832x_rdb) {
129 .name = "MPC832x RDB",
130 .probe = mpc832x_rdb_probe,
131 .setup_arch = mpc832x_rdb_setup_arch,
132 .init_IRQ = mpc832x_rdb_init_IRQ,
133 .get_irq = ipic_get_irq,
134 .restart = mpc83xx_restart,
135 .time_init = mpc83xx_time_init,
136 .calibrate_decr = generic_calibrate_decr,
137 .progress = udbg_progress,
138};