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
sam440ep_device_probe(void)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
sam440ep_probe(void)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
define_machine(sam440ep)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
sam440ep_setup_rtc(void)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