diff options
Diffstat (limited to 'arch/powerpc/platforms/85xx/mpc85xx_rdb.c')
-rw-r--r-- | arch/powerpc/platforms/85xx/mpc85xx_rdb.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_rdb.c b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c new file mode 100644 index 000000000000..c8468de4acf6 --- /dev/null +++ b/arch/powerpc/platforms/85xx/mpc85xx_rdb.c | |||
@@ -0,0 +1,141 @@ | |||
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 | |||
48 | np = of_find_node_by_type(NULL, "open-pic"); | ||
49 | if (np == NULL) { | ||
50 | printk(KERN_ERR "Could not find open-pic node\n"); | ||
51 | return; | ||
52 | } | ||
53 | |||
54 | if (of_address_to_resource(np, 0, &r)) { | ||
55 | printk(KERN_ERR "Failed to map mpic register space\n"); | ||
56 | of_node_put(np); | ||
57 | return; | ||
58 | } | ||
59 | |||
60 | mpic = mpic_alloc(np, r.start, | ||
61 | MPIC_PRIMARY | MPIC_WANTS_RESET | | ||
62 | MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | | ||
63 | MPIC_SINGLE_DEST_CPU, | ||
64 | 0, 256, " OpenPIC "); | ||
65 | |||
66 | BUG_ON(mpic == NULL); | ||
67 | of_node_put(np); | ||
68 | |||
69 | mpic_init(mpic); | ||
70 | |||
71 | } | ||
72 | |||
73 | /* | ||
74 | * Setup the architecture | ||
75 | */ | ||
76 | #ifdef CONFIG_SMP | ||
77 | extern void __init mpc85xx_smp_init(void); | ||
78 | #endif | ||
79 | static void __init mpc85xx_rdb_setup_arch(void) | ||
80 | { | ||
81 | #ifdef CONFIG_PCI | ||
82 | struct device_node *np; | ||
83 | #endif | ||
84 | |||
85 | if (ppc_md.progress) | ||
86 | ppc_md.progress("mpc85xx_rdb_setup_arch()", 0); | ||
87 | |||
88 | #ifdef CONFIG_PCI | ||
89 | for_each_node_by_type(np, "pci") { | ||
90 | if (of_device_is_compatible(np, "fsl,mpc8548-pcie")) | ||
91 | fsl_add_bridge(np, 0); | ||
92 | } | ||
93 | |||
94 | #endif | ||
95 | |||
96 | #ifdef CONFIG_SMP | ||
97 | mpc85xx_smp_init(); | ||
98 | #endif | ||
99 | |||
100 | printk(KERN_INFO "MPC85xx RDB board from Freescale Semiconductor\n"); | ||
101 | } | ||
102 | |||
103 | static struct of_device_id __initdata mpc85xxrdb_ids[] = { | ||
104 | { .type = "soc", }, | ||
105 | { .compatible = "soc", }, | ||
106 | { .compatible = "simple-bus", }, | ||
107 | { .compatible = "gianfar", }, | ||
108 | {}, | ||
109 | }; | ||
110 | |||
111 | static int __init mpc85xxrdb_publish_devices(void) | ||
112 | { | ||
113 | return of_platform_bus_probe(NULL, mpc85xxrdb_ids, NULL); | ||
114 | } | ||
115 | machine_device_initcall(p2020_rdb, mpc85xxrdb_publish_devices); | ||
116 | |||
117 | /* | ||
118 | * Called very early, device-tree isn't unflattened | ||
119 | */ | ||
120 | static int __init p2020_rdb_probe(void) | ||
121 | { | ||
122 | unsigned long root = of_get_flat_dt_root(); | ||
123 | |||
124 | if (of_flat_dt_is_compatible(root, "fsl,P2020RDB")) | ||
125 | return 1; | ||
126 | return 0; | ||
127 | } | ||
128 | |||
129 | define_machine(p2020_rdb) { | ||
130 | .name = "P2020 RDB", | ||
131 | .probe = p2020_rdb_probe, | ||
132 | .setup_arch = mpc85xx_rdb_setup_arch, | ||
133 | .init_IRQ = mpc85xx_rdb_pic_init, | ||
134 | #ifdef CONFIG_PCI | ||
135 | .pcibios_fixup_bus = fsl_pcibios_fixup_bus, | ||
136 | #endif | ||
137 | .get_irq = mpic_get_irq, | ||
138 | .restart = fsl_rstcr_restart, | ||
139 | .calibrate_decr = generic_calibrate_decr, | ||
140 | .progress = udbg_progress, | ||
141 | }; | ||