Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.git] / arch / powerpc / platforms / 85xx / mpc85xx_rdb.c
1 /*
2  * MPC85xx RDB Board Setup
3  *
4  * Copyright 2009 Freescale Semiconductor Inc.
5  *
6  * This program is free software; you can redistribute  it and/or modify it
7  * under  the terms of  the GNU General  Public License as published by the
8  * Free Software Foundation;  either version 2 of the  License, or (at your
9  * option) any later version.
10  */
11
12 #include <linux/stddef.h>
13 #include <linux/kernel.h>
14 #include <linux/pci.h>
15 #include <linux/kdev_t.h>
16 #include <linux/delay.h>
17 #include <linux/seq_file.h>
18 #include <linux/interrupt.h>
19 #include <linux/of_platform.h>
20
21 #include <asm/system.h>
22 #include <asm/time.h>
23 #include <asm/machdep.h>
24 #include <asm/pci-bridge.h>
25 #include <mm/mmu_decl.h>
26 #include <asm/prom.h>
27 #include <asm/udbg.h>
28 #include <asm/mpic.h>
29
30 #include <sysdev/fsl_soc.h>
31 #include <sysdev/fsl_pci.h>
32
33 #undef DEBUG
34
35 #ifdef DEBUG
36 #define DBG(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
37 #else
38 #define DBG(fmt, args...)
39 #endif
40
41
42 void __init mpc85xx_rdb_pic_init(void)
43 {
44         struct mpic *mpic;
45         struct resource r;
46         struct device_node *np;
47         unsigned long root = of_get_flat_dt_root();
48
49         np = of_find_node_by_type(NULL, "open-pic");
50         if (np == NULL) {
51                 printk(KERN_ERR "Could not find open-pic node\n");
52                 return;
53         }
54
55         if (of_address_to_resource(np, 0, &r)) {
56                 printk(KERN_ERR "Failed to map mpic register space\n");
57                 of_node_put(np);
58                 return;
59         }
60
61         if (of_flat_dt_is_compatible(root, "fsl,85XXRDB-CAMP")) {
62                 mpic = mpic_alloc(np, r.start,
63                         MPIC_PRIMARY |
64                         MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS,
65                         0, 256, " OpenPIC  ");
66         } else {
67                 mpic = mpic_alloc(np, r.start,
68                   MPIC_PRIMARY | MPIC_WANTS_RESET |
69                   MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS |
70                   MPIC_SINGLE_DEST_CPU,
71                   0, 256, " OpenPIC  ");
72         }
73
74         BUG_ON(mpic == NULL);
75         of_node_put(np);
76
77         mpic_init(mpic);
78
79 }
80
81 /*
82  * Setup the architecture
83  */
84 #ifdef CONFIG_SMP
85 extern void __init mpc85xx_smp_init(void);
86 #endif
87 static void __init mpc85xx_rdb_setup_arch(void)
88 {
89 #ifdef CONFIG_PCI
90         struct device_node *np;
91 #endif
92
93         if (ppc_md.progress)
94                 ppc_md.progress("mpc85xx_rdb_setup_arch()", 0);
95
96 #ifdef CONFIG_PCI
97         for_each_node_by_type(np, "pci") {
98                 if (of_device_is_compatible(np, "fsl,mpc8548-pcie"))
99                         fsl_add_bridge(np, 0);
100         }
101
102 #endif
103
104 #ifdef CONFIG_SMP
105         mpc85xx_smp_init();
106 #endif
107
108         printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n");
109 }
110
111 static struct of_device_id __initdata mpc85xxrdb_ids[] = {
112         { .type = "soc", },
113         { .compatible = "soc", },
114         { .compatible = "simple-bus", },
115         { .compatible = "gianfar", },
116         {},
117 };
118
119 static int __init mpc85xxrdb_publish_devices(void)
120 {
121         return of_platform_bus_probe(NULL, mpc85xxrdb_ids, NULL);
122 }
123 machine_device_initcall(p2020_rdb, mpc85xxrdb_publish_devices);
124 machine_device_initcall(p1020_rdb, mpc85xxrdb_publish_devices);
125
126 /*
127  * Called very early, device-tree isn't unflattened
128  */
129 static int __init p2020_rdb_probe(void)
130 {
131         unsigned long root = of_get_flat_dt_root();
132
133         if (of_flat_dt_is_compatible(root, "fsl,P2020RDB"))
134                 return 1;
135         return 0;
136 }
137
138 static int __init p1020_rdb_probe(void)
139 {
140         unsigned long root = of_get_flat_dt_root();
141
142         if (of_flat_dt_is_compatible(root, "fsl,P1020RDB"))
143                 return 1;
144         return 0;
145 }
146
147 define_machine(p2020_rdb) {
148         .name                   = "P2020 RDB",
149         .probe                  = p2020_rdb_probe,
150         .setup_arch             = mpc85xx_rdb_setup_arch,
151         .init_IRQ               = mpc85xx_rdb_pic_init,
152 #ifdef CONFIG_PCI
153         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
154 #endif
155         .get_irq                = mpic_get_irq,
156         .restart                = fsl_rstcr_restart,
157         .calibrate_decr         = generic_calibrate_decr,
158         .progress               = udbg_progress,
159 };
160
161 define_machine(p1020_rdb) {
162         .name                   = "P1020 RDB",
163         .probe                  = p1020_rdb_probe,
164         .setup_arch             = mpc85xx_rdb_setup_arch,
165         .init_IRQ               = mpc85xx_rdb_pic_init,
166 #ifdef CONFIG_PCI
167         .pcibios_fixup_bus      = fsl_pcibios_fixup_bus,
168 #endif
169         .get_irq                = mpic_get_irq,
170         .restart                = fsl_rstcr_restart,
171         .calibrate_decr         = generic_calibrate_decr,
172         .progress               = udbg_progress,
173 };