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393adcac WG |
1 | /* |
2 | * Copyright (c) 2008 Emcraft Systems | |
3 | * Sergei Poselenov <sposelenov@emcraft.com> | |
4 | * | |
5 | * Based on MPC8560 ADS and arch/ppc tqm85xx ports | |
6 | * | |
7 | * Maintained by Kumar Gala (see MAINTAINERS for contact information) | |
8 | * | |
9 | * Copyright 2008 Freescale Semiconductor Inc. | |
10 | * | |
11 | * Copyright (c) 2005-2006 DENX Software Engineering | |
12 | * Stefan Roese <sr@denx.de> | |
13 | * | |
14 | * Based on original work by | |
15 | * Kumar Gala <kumar.gala@freescale.com> | |
16 | * Copyright 2004 Freescale Semiconductor Inc. | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify it | |
19 | * under the terms of the GNU General Public License as published by the | |
20 | * Free Software Foundation; either version 2 of the License, or (at your | |
21 | * option) any later version. | |
22 | */ | |
23 | ||
24 | #include <linux/stddef.h> | |
25 | #include <linux/kernel.h> | |
26 | #include <linux/pci.h> | |
27 | #include <linux/kdev_t.h> | |
28 | #include <linux/delay.h> | |
29 | #include <linux/seq_file.h> | |
30 | #include <linux/of_platform.h> | |
31 | ||
32 | #include <asm/system.h> | |
33 | #include <asm/time.h> | |
34 | #include <asm/machdep.h> | |
35 | #include <asm/pci-bridge.h> | |
36 | #include <asm/mpic.h> | |
37 | #include <asm/prom.h> | |
38 | #include <mm/mmu_decl.h> | |
39 | #include <asm/udbg.h> | |
40 | ||
41 | #include <sysdev/fsl_soc.h> | |
42 | #include <sysdev/fsl_pci.h> | |
43 | ||
44 | #include "socrates_fpga_pic.h" | |
45 | ||
46 | static void __init socrates_pic_init(void) | |
47 | { | |
48 | struct mpic *mpic; | |
49 | struct resource r; | |
50 | struct device_node *np; | |
51 | ||
52 | np = of_find_node_by_type(NULL, "open-pic"); | |
53 | if (!np) { | |
54 | printk(KERN_ERR "Could not find open-pic node\n"); | |
55 | return; | |
56 | } | |
57 | ||
58 | if (of_address_to_resource(np, 0, &r)) { | |
59 | printk(KERN_ERR "Could not map mpic register space\n"); | |
60 | of_node_put(np); | |
61 | return; | |
62 | } | |
63 | ||
64 | mpic = mpic_alloc(np, r.start, | |
65 | MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN, | |
66 | 0, 256, " OpenPIC "); | |
67 | BUG_ON(mpic == NULL); | |
68 | of_node_put(np); | |
69 | ||
70 | mpic_init(mpic); | |
71 | ||
72 | np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic"); | |
73 | if (!np) { | |
74 | printk(KERN_ERR "Could not find socrates-fpga-pic node\n"); | |
75 | return; | |
76 | } | |
77 | socrates_fpga_pic_init(np); | |
78 | of_node_put(np); | |
79 | } | |
80 | ||
81 | /* | |
82 | * Setup the architecture | |
83 | */ | |
84 | static void __init socrates_setup_arch(void) | |
85 | { | |
86 | #ifdef CONFIG_PCI | |
87 | struct device_node *np; | |
88 | #endif | |
89 | ||
90 | if (ppc_md.progress) | |
91 | ppc_md.progress("socrates_setup_arch()", 0); | |
92 | ||
93 | #ifdef CONFIG_PCI | |
94 | for_each_compatible_node(np, "pci", "fsl,mpc8540-pci") | |
95 | fsl_add_bridge(np, 1); | |
96 | #endif | |
97 | } | |
98 | ||
99 | static struct of_device_id __initdata socrates_of_bus_ids[] = { | |
100 | { .compatible = "simple-bus", }, | |
101 | { .compatible = "gianfar", }, | |
102 | {}, | |
103 | }; | |
104 | ||
a44a23ed | 105 | static int __init socrates_publish_devices(void) |
393adcac | 106 | { |
a44a23ed | 107 | return of_platform_bus_probe(NULL, socrates_of_bus_ids, NULL); |
393adcac | 108 | } |
a44a23ed | 109 | machine_device_initcall(socrates, socrates_publish_devices); |
393adcac WG |
110 | |
111 | /* | |
112 | * Called very early, device-tree isn't unflattened | |
113 | */ | |
114 | static int __init socrates_probe(void) | |
115 | { | |
116 | unsigned long root = of_get_flat_dt_root(); | |
117 | ||
118 | if (of_flat_dt_is_compatible(root, "abb,socrates")) | |
119 | return 1; | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
124 | define_machine(socrates) { | |
125 | .name = "Socrates", | |
126 | .probe = socrates_probe, | |
127 | .setup_arch = socrates_setup_arch, | |
393adcac WG |
128 | .init_IRQ = socrates_pic_init, |
129 | .get_irq = mpic_get_irq, | |
130 | .restart = fsl_rstcr_restart, | |
131 | .calibrate_decr = generic_calibrate_decr, | |
132 | .progress = udbg_progress, | |
133 | }; |