1 /*
2 * Sam440ep board specific routines based off bamboo.c code
3 * original copyrights below
4 *
5 * Wade Farnsworth <wfarnsworth@mvista.com>
6 * Copyright 2004 MontaVista Software Inc.
7 *
8 * Rewritten and ported to the merged powerpc tree:
9 * Josh Boyer <jwboyer@linux.vnet.ibm.com>
10 * Copyright 2007 IBM Corporation
11 *
12 * Modified from bamboo.c for sam440ep:
13 * Copyright 2008 Giuseppe Coviello <gicoviello@gmail.com>
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
sam440ep_device_probe(void)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
sam440ep_probe(void)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 ppc_pci_set_flags(PPC_PCI_REASSIGN_ALL_RSRC);
55
56 return 1;
57 }
58
define_machine(sam440ep)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
sam440ep_setup_rtc(void)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);
80