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a43414cc PG |
1 | /* |
2 | * arch/powerpc/platforms/83xx/sbc834x.c | |
3 | * | |
4 | * Wind River SBC834x board specific routines | |
5 | * | |
6 | * By Paul Gortmaker (see MAINTAINERS for contact information) | |
7 | * | |
8 | * Based largely on the mpc834x_mds.c support by Kumar Gala. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it | |
11 | * under the terms of the GNU General Public License as published by the | |
12 | * Free Software Foundation; either version 2 of the License, or (at your | |
13 | * option) any later version. | |
14 | */ | |
15 | ||
16 | #include <linux/stddef.h> | |
17 | #include <linux/kernel.h> | |
18 | #include <linux/init.h> | |
19 | #include <linux/errno.h> | |
20 | #include <linux/reboot.h> | |
21 | #include <linux/pci.h> | |
22 | #include <linux/kdev_t.h> | |
23 | #include <linux/major.h> | |
24 | #include <linux/console.h> | |
25 | #include <linux/delay.h> | |
26 | #include <linux/seq_file.h> | |
27 | #include <linux/root_dev.h> | |
28 | #include <linux/of_platform.h> | |
29 | ||
30 | #include <asm/system.h> | |
31 | #include <asm/atomic.h> | |
32 | #include <asm/time.h> | |
33 | #include <asm/io.h> | |
34 | #include <asm/machdep.h> | |
35 | #include <asm/ipic.h> | |
36 | #include <asm/irq.h> | |
37 | #include <asm/prom.h> | |
38 | #include <asm/udbg.h> | |
39 | #include <sysdev/fsl_soc.h> | |
76fe1ffc | 40 | #include <sysdev/fsl_pci.h> |
a43414cc PG |
41 | |
42 | #include "mpc83xx.h" | |
43 | ||
44 | /* ************************************************************************ | |
45 | * | |
46 | * Setup the architecture | |
47 | * | |
48 | */ | |
49 | static void __init sbc834x_setup_arch(void) | |
50 | { | |
51 | #ifdef CONFIG_PCI | |
52 | struct device_node *np; | |
53 | #endif | |
54 | ||
55 | if (ppc_md.progress) | |
56 | ppc_md.progress("sbc834x_setup_arch()", 0); | |
57 | ||
58 | #ifdef CONFIG_PCI | |
59 | for_each_compatible_node(np, "pci", "fsl,mpc8349-pci") | |
60 | mpc83xx_add_bridge(np); | |
61 | #endif | |
62 | ||
63 | } | |
64 | ||
65 | static void __init sbc834x_init_IRQ(void) | |
66 | { | |
67 | struct device_node *np; | |
68 | ||
69 | np = of_find_node_by_type(NULL, "ipic"); | |
70 | if (!np) | |
71 | return; | |
72 | ||
73 | ipic_init(np, 0); | |
74 | ||
75 | /* Initialize the default interrupt mapping priorities, | |
76 | * in case the boot rom changed something on us. | |
77 | */ | |
78 | ipic_set_default_priority(); | |
79 | ||
80 | of_node_put(np); | |
81 | } | |
82 | ||
83 | static struct __initdata of_device_id sbc834x_ids[] = { | |
84 | { .type = "soc", }, | |
85 | { .compatible = "soc", }, | |
cf0d19fb | 86 | { .compatible = "simple-bus", }, |
70b3adbb | 87 | { .compatible = "gianfar", }, |
a43414cc PG |
88 | {}, |
89 | }; | |
90 | ||
91 | static int __init sbc834x_declare_of_platform_devices(void) | |
92 | { | |
93 | of_platform_bus_probe(NULL, sbc834x_ids, NULL); | |
94 | return 0; | |
95 | } | |
96 | machine_device_initcall(sbc834x, sbc834x_declare_of_platform_devices); | |
97 | ||
98 | /* | |
99 | * Called very early, MMU is off, device-tree isn't unflattened | |
100 | */ | |
101 | static int __init sbc834x_probe(void) | |
102 | { | |
103 | unsigned long root = of_get_flat_dt_root(); | |
104 | ||
105 | return of_flat_dt_is_compatible(root, "SBC834x"); | |
106 | } | |
107 | ||
108 | define_machine(sbc834x) { | |
109 | .name = "SBC834x", | |
110 | .probe = sbc834x_probe, | |
111 | .setup_arch = sbc834x_setup_arch, | |
112 | .init_IRQ = sbc834x_init_IRQ, | |
113 | .get_irq = ipic_get_irq, | |
114 | .restart = mpc83xx_restart, | |
115 | .time_init = mpc83xx_time_init, | |
116 | .calibrate_decr = generic_calibrate_decr, | |
117 | .progress = udbg_progress, | |
118 | }; |