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Commit | Line | Data |
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231a35d3 TB |
1 | /* |
2 | * Virtual EISA root driver. | |
3 | * Acts as a placeholder if we don't have a proper EISA bridge. | |
4 | * | |
5 | * (C) 2003 Marc Zyngier <maz@wild-wind.fr.eu.org> | |
6 | * modified for SNI usage by Thomas Bogendoerfer | |
7 | * | |
8 | * This code is released under the GPL version 2. | |
9 | */ | |
10 | ||
11 | #include <linux/kernel.h> | |
12 | #include <linux/platform_device.h> | |
13 | #include <linux/eisa.h> | |
14 | #include <linux/init.h> | |
15 | ||
16 | /* The default EISA device parent (virtual root device). | |
17 | * Now use a platform device, since that's the obvious choice. */ | |
18 | ||
19 | static struct platform_device eisa_root_dev = { | |
20 | .name = "eisa", | |
21 | .id = 0, | |
22 | }; | |
23 | ||
24 | static struct eisa_root_device eisa_bus_root = { | |
70342287 | 25 | .dev = &eisa_root_dev.dev, |
231a35d3 TB |
26 | .bus_base_addr = 0, |
27 | .res = &ioport_resource, | |
28 | .slots = EISA_MAX_SLOTS, | |
29 | .dma_mask = 0xffffffff, | |
30 | .force_probe = 1, | |
31 | }; | |
32 | ||
33 | int __init sni_eisa_root_init(void) | |
34 | { | |
35 | int r; | |
36 | ||
37 | r = platform_device_register(&eisa_root_dev); | |
38 | if (!r) | |
39 | return r; | |
40 | ||
d7792065 | 41 | dev_set_drvdata(&eisa_root_dev.dev, &eisa_bus_root); |
231a35d3 TB |
42 | |
43 | if (eisa_root_register(&eisa_bus_root)) { | |
44 | /* A real bridge may have been registered before | |
45 | * us. So quietly unregister. */ | |
46 | platform_device_unregister(&eisa_root_dev); | |
47 | return -1; | |
48 | } | |
49 | return 0; | |
50 | } |