1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Ebony board specific routines
4 *
5 * Matt Porter <mporter@kernel.crashing.org>
6 * Copyright 2002-2005 MontaVista Software Inc.
7 *
8 * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
9 * Copyright (c) 2003-2005 Zultys Technologies
10 *
11 * Rewritten and ported to the merged powerpc tree:
12 * Copyright 2007 David Gibson <dwg@au1.ibm.com>, IBM Corporation.
13 */
14
15 #include <linux/init.h>
16 #include <linux/of_platform.h>
17 #include <linux/rtc.h>
18
19 #include <asm/machdep.h>
20 #include <asm/prom.h>
21 #include <asm/udbg.h>
22 #include <asm/time.h>
23 #include <asm/uic.h>
24 #include <asm/pci-bridge.h>
25 #include <asm/ppc4xx.h>
26
27 static const struct of_device_id ebony_of_bus[] __initconst = {
28 { .compatible = "ibm,plb4", },
29 { .compatible = "ibm,opb", },
30 { .compatible = "ibm,ebc", },
31 {},
32 };
33
ebony_device_probe(void)34 static int __init ebony_device_probe(void)
35 {
36 of_platform_bus_probe(NULL, ebony_of_bus, NULL);
37 of_instantiate_rtc();
38
39 return 0;
40 }
41 machine_device_initcall(ebony, ebony_device_probe);
42
43 /*
44 * Called very early, MMU is off, device-tree isn't unflattened
45 */
ebony_probe(void)46 static int __init ebony_probe(void)
47 {
48 if (!of_machine_is_compatible("ibm,ebony"))
49 return 0;
50
51 pci_set_flags(PCI_REASSIGN_ALL_RSRC);
52
53 return 1;
54 }
55
define_machine(ebony)56 define_machine(ebony) {
57 .name = "Ebony",
58 .probe = ebony_probe,
59 .progress = udbg_progress,
60 .init_IRQ = uic_init_tree,
61 .get_irq = uic_get_irq,
62 .restart = ppc4xx_reset_system,
63 .calibrate_decr = generic_calibrate_decr,
64 };
65