Linux Kernel  3.7.1
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sam440ep.c
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1 /*
2  * Sam440ep board specific routines based off bamboo.c code
3  * original copyrights below
4  *
5  * Wade Farnsworth <[email protected]>
6  * Copyright 2004 MontaVista Software Inc.
7  *
8  * Rewritten and ported to the merged powerpc tree:
9  * Josh Boyer <[email protected]>
10  * Copyright 2007 IBM Corporation
11  *
12  * Modified from bamboo.c for sam440ep:
13  * Copyright 2008 Giuseppe Coviello <[email protected]>
14  *
15  * This program is free software; you can redistribute it and/or modify it
16  * under the terms of the GNU General Public License as published by the
17  * Free Software Foundation; either version 2 of the License, or (at your
18  * option) any later version.
19  */
20 #include <linux/init.h>
21 #include <linux/of_platform.h>
22 
23 #include <asm/machdep.h>
24 #include <asm/prom.h>
25 #include <asm/udbg.h>
26 #include <asm/time.h>
27 #include <asm/uic.h>
28 #include <asm/pci-bridge.h>
29 #include <asm/ppc4xx.h>
30 #include <linux/i2c.h>
31 
32 static __initdata struct of_device_id sam440ep_of_bus[] = {
33  { .compatible = "ibm,plb4", },
34  { .compatible = "ibm,opb", },
35  { .compatible = "ibm,ebc", },
36  {},
37 };
38 
39 static int __init sam440ep_device_probe(void)
40 {
41  of_platform_bus_probe(NULL, sam440ep_of_bus, NULL);
42 
43  return 0;
44 }
45 machine_device_initcall(sam440ep, sam440ep_device_probe);
46 
47 static int __init sam440ep_probe(void)
48 {
49  unsigned long root = of_get_flat_dt_root();
50 
51  if (!of_flat_dt_is_compatible(root, "acube,sam440ep"))
52  return 0;
53 
54  pci_set_flags(PCI_REASSIGN_ALL_RSRC);
55 
56  return 1;
57 }
58 
59 define_machine(sam440ep) {
60  .name = "Sam440ep",
61  .probe = sam440ep_probe,
62  .progress = udbg_progress,
63  .init_IRQ = uic_init_tree,
64  .get_irq = uic_get_irq,
65  .restart = ppc4xx_reset_system,
66  .calibrate_decr = generic_calibrate_decr,
67 };
68 
69 static struct i2c_board_info sam440ep_rtc_info = {
70  .type = "m41st85",
71  .addr = 0x68,
72  .irq = -1,
73 };
74 
75 static int sam440ep_setup_rtc(void)
76 {
77  return i2c_register_board_info(0, &sam440ep_rtc_info, 1);
78 }
79 machine_device_initcall(sam440ep, sam440ep_setup_rtc);