1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * Sam440ep board specific routines based off bamboo.c code
4  * original copyrights below
5  *
6  * Wade Farnsworth <wfarnsworth@mvista.com>
7  * Copyright 2004 MontaVista Software Inc.
8  *
9  * Rewritten and ported to the merged powerpc tree:
10  * Josh Boyer <jwboyer@linux.vnet.ibm.com>
11  * Copyright 2007 IBM Corporation
12  *
13  * Modified from bamboo.c for sam440ep:
14  * Copyright 2008 Giuseppe Coviello <gicoviello@gmail.com>
15  */
16 #include <linux/init.h>
17 #include <linux/of_platform.h>
18 
19 #include <asm/machdep.h>
20 #include <asm/udbg.h>
21 #include <asm/time.h>
22 #include <asm/uic.h>
23 #include <asm/pci-bridge.h>
24 #include <asm/ppc4xx.h>
25 #include <linux/i2c.h>
26 
27 static const struct of_device_id sam440ep_of_bus[] __initconst = {
28 	{ .compatible = "ibm,plb4", },
29 	{ .compatible = "ibm,opb", },
30 	{ .compatible = "ibm,ebc", },
31 	{},
32 };
33 
34 static int __init sam440ep_device_probe(void)
35 {
36 	of_platform_bus_probe(NULL, sam440ep_of_bus, NULL);
37 
38 	return 0;
39 }
40 machine_device_initcall(sam440ep, sam440ep_device_probe);
41 
42 static int __init sam440ep_probe(void)
43 {
44 	if (!of_machine_is_compatible("acube,sam440ep"))
45 		return 0;
46 
47 	pci_set_flags(PCI_REASSIGN_ALL_RSRC);
48 
49 	return 1;
50 }
51 
52 define_machine(sam440ep) {
53 	.name 			= "Sam440ep",
54 	.probe 			= sam440ep_probe,
55 	.progress 		= udbg_progress,
56 	.init_IRQ 		= uic_init_tree,
57 	.get_irq 		= uic_get_irq,
58 	.restart		= ppc4xx_reset_system,
59 	.calibrate_decr 	= generic_calibrate_decr,
60 };
61 
62 static struct i2c_board_info sam440ep_rtc_info = {
63 	.type = "m41st85",
64 	.addr = 0x68,
65 	.irq = -1,
66 };
67 
68 static int __init sam440ep_setup_rtc(void)
69 {
70 	return i2c_register_board_info(0, &sam440ep_rtc_info, 1);
71 }
72 machine_device_initcall(sam440ep, sam440ep_setup_rtc);
73