1 /*
2 * arch/powerpc/platforms/83xx/mpc837x_rdb.c
3 *
4 * Copyright (C) 2007 Freescale Semicondutor, Inc. All rights reserved.
5 *
6 * MPC837x RDB board specific routines
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
12 */
13
14 #include <linux/pci.h>
15 #include <linux/of_platform.h>
16
17 #include <asm/time.h>
18 #include <asm/ipic.h>
19 #include <asm/udbg.h>
20 #include <sysdev/fsl_pci.h>
21
22 #include "mpc83xx.h"
23
24 /* ************************************************************************
25 *
26 * Setup the architecture
27 *
28 */
mpc837x_rdb_setup_arch(void)29 static void __init mpc837x_rdb_setup_arch(void)
30 {
31 #ifdef CONFIG_PCI
32 struct device_node *np;
33 #endif
34
35 if (ppc_md.progress)
36 ppc_md.progress("mpc837x_rdb_setup_arch()", 0);
37
38 #ifdef CONFIG_PCI
39 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
40 mpc83xx_add_bridge(np);
41 #endif
42 mpc837x_usb_cfg();
43 }
44
45 static struct of_device_id mpc837x_ids[] = {
46 { .type = "soc", },
47 { .compatible = "soc", },
48 { .compatible = "simple-bus", },
49 {},
50 };
51
mpc837x_declare_of_platform_devices(void)52 static int __init mpc837x_declare_of_platform_devices(void)
53 {
54 /* Publish of_device */
55 of_platform_bus_probe(NULL, mpc837x_ids, NULL);
56
57 return 0;
58 }
59 machine_device_initcall(mpc837x_rdb, mpc837x_declare_of_platform_devices);
60
mpc837x_rdb_init_IRQ(void)61 static void __init mpc837x_rdb_init_IRQ(void)
62 {
63 struct device_node *np;
64
65 np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
66 if (!np)
67 return;
68
69 ipic_init(np, 0);
70
71 /* Initialize the default interrupt mapping priorities,
72 * in case the boot rom changed something on us.
73 */
74 ipic_set_default_priority();
75 }
76
77 /*
78 * Called very early, MMU is off, device-tree isn't unflattened
79 */
mpc837x_rdb_probe(void)80 static int __init mpc837x_rdb_probe(void)
81 {
82 unsigned long root = of_get_flat_dt_root();
83
84 return of_flat_dt_is_compatible(root, "fsl,mpc8377rdb") ||
85 of_flat_dt_is_compatible(root, "fsl,mpc8378rdb") ||
86 of_flat_dt_is_compatible(root, "fsl,mpc8379rdb");
87 }
88
define_machine(mpc837x_rdb)89 define_machine(mpc837x_rdb) {
90 .name = "MPC837x RDB",
91 .probe = mpc837x_rdb_probe,
92 .setup_arch = mpc837x_rdb_setup_arch,
93 .init_IRQ = mpc837x_rdb_init_IRQ,
94 .get_irq = ipic_get_irq,
95 .restart = mpc83xx_restart,
96 .time_init = mpc83xx_time_init,
97 .calibrate_decr = generic_calibrate_decr,
98 .progress = udbg_progress,
99 };
100