1 /*
2  * P1010RDB Board Setup
3  *
4  * Copyright 2011 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/delay.h>
16 #include <linux/interrupt.h>
17 #include <linux/of_platform.h>
18 
19 #include <asm/system.h>
20 #include <asm/time.h>
21 #include <asm/machdep.h>
22 #include <asm/pci-bridge.h>
23 #include <mm/mmu_decl.h>
24 #include <asm/prom.h>
25 #include <asm/udbg.h>
26 #include <asm/mpic.h>
27 
28 #include <sysdev/fsl_soc.h>
29 #include <sysdev/fsl_pci.h>
30 
31 void __init p1010_rdb_pic_init(void)
32 {
33 	struct mpic *mpic;
34 	struct resource r;
35 	struct device_node *np;
36 
37 	np = of_find_node_by_type(NULL, "open-pic");
38 	if (np == NULL) {
39 		printk(KERN_ERR "Could not find open-pic node\n");
40 		return;
41 	}
42 
43 	if (of_address_to_resource(np, 0, &r)) {
44 		printk(KERN_ERR "Failed to map mpic register space\n");
45 		of_node_put(np);
46 		return;
47 	}
48 
49 	mpic = mpic_alloc(np, r.start, MPIC_PRIMARY | MPIC_WANTS_RESET |
50 	  MPIC_BIG_ENDIAN | MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU,
51 	  0, 256, " OpenPIC  ");
52 
53 	BUG_ON(mpic == NULL);
54 	of_node_put(np);
55 
56 	mpic_init(mpic);
57 
58 }
59 
60 
61 /*
62  * Setup the architecture
63  */
64 static void __init p1010_rdb_setup_arch(void)
65 {
66 #ifdef CONFIG_PCI
67 	struct device_node *np;
68 #endif
69 
70 	if (ppc_md.progress)
71 		ppc_md.progress("p1010_rdb_setup_arch()", 0);
72 
73 #ifdef CONFIG_PCI
74 	for_each_node_by_type(np, "pci") {
75 		if (of_device_is_compatible(np, "fsl,p1010-pcie"))
76 			fsl_add_bridge(np, 0);
77 	}
78 
79 #endif
80 
81 	printk(KERN_INFO "P1010 RDB board from Freescale Semiconductor\n");
82 }
83 
84 static struct of_device_id __initdata p1010rdb_ids[] = {
85 	{ .type = "soc", },
86 	{ .compatible = "soc", },
87 	{ .compatible = "simple-bus", },
88 	{},
89 };
90 
91 static int __init p1010rdb_publish_devices(void)
92 {
93 	return of_platform_bus_probe(NULL, p1010rdb_ids, NULL);
94 }
95 machine_device_initcall(p1010_rdb, p1010rdb_publish_devices);
96 machine_arch_initcall(p1010_rdb, swiotlb_setup_bus_notifier);
97 
98 /*
99  * Called very early, device-tree isn't unflattened
100  */
101 static int __init p1010_rdb_probe(void)
102 {
103 	unsigned long root = of_get_flat_dt_root();
104 
105 	if (of_flat_dt_is_compatible(root, "fsl,P1010RDB"))
106 		return 1;
107 	return 0;
108 }
109 
110 define_machine(p1010_rdb) {
111 	.name			= "P1010 RDB",
112 	.probe			= p1010_rdb_probe,
113 	.setup_arch		= p1010_rdb_setup_arch,
114 	.init_IRQ		= p1010_rdb_pic_init,
115 #ifdef CONFIG_PCI
116 	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
117 #endif
118 	.get_irq		= mpic_get_irq,
119 	.restart		= fsl_rstcr_restart,
120 	.calibrate_decr		= generic_calibrate_decr,
121 	.progress		= udbg_progress,
122 };
123