Commit | Line | Data |
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ce292991 WD |
1 | /* |
2 | * Simple, generic PCI host controller driver targetting firmware-initialised | |
3 | * systems and virtual machines (e.g. the PCI emulation provided by kvmtool). | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License version 2 as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
16 | * | |
17 | * Copyright (C) 2014 ARM Limited | |
18 | * | |
19 | * Author: Will Deacon <will.deacon@arm.com> | |
20 | */ | |
21 | ||
22 | #include <linux/kernel.h> | |
99849bf3 | 23 | #include <linux/init.h> |
ce292991 WD |
24 | #include <linux/of_address.h> |
25 | #include <linux/of_pci.h> | |
80955f9e | 26 | #include <linux/pci-ecam.h> |
ce292991 WD |
27 | #include <linux/platform_device.h> |
28 | ||
1958e717 | 29 | static struct pci_ecam_ops gen_pci_cfg_cam_bus_ops = { |
ce292991 | 30 | .bus_shift = 16, |
1958e717 J |
31 | .pci_ops = { |
32 | .map_bus = pci_ecam_map_bus, | |
9a280337 DD |
33 | .read = pci_generic_config_read, |
34 | .write = pci_generic_config_write, | |
35 | } | |
ce292991 WD |
36 | }; |
37 | ||
38 | static const struct of_device_id gen_pci_of_match[] = { | |
39 | { .compatible = "pci-host-cam-generic", | |
40 | .data = &gen_pci_cfg_cam_bus_ops }, | |
41 | ||
42 | { .compatible = "pci-host-ecam-generic", | |
1958e717 | 43 | .data = &pci_generic_ecam_ops }, |
ce292991 WD |
44 | |
45 | { }, | |
46 | }; | |
1958e717 | 47 | |
d51b3710 DD |
48 | static int gen_pci_probe(struct platform_device *pdev) |
49 | { | |
d51b3710 | 50 | const struct of_device_id *of_id; |
1958e717 | 51 | struct pci_ecam_ops *ops; |
d51b3710 | 52 | |
1958e717 J |
53 | of_id = of_match_node(gen_pci_of_match, pdev->dev.of_node); |
54 | ops = (struct pci_ecam_ops *)of_id->data; | |
d51b3710 | 55 | |
1958e717 | 56 | return pci_host_common_probe(pdev, ops); |
d51b3710 DD |
57 | } |
58 | ||
ce292991 WD |
59 | static struct platform_driver gen_pci_driver = { |
60 | .driver = { | |
61 | .name = "pci-host-generic", | |
ce292991 WD |
62 | .of_match_table = gen_pci_of_match, |
63 | }, | |
64 | .probe = gen_pci_probe, | |
65 | }; | |
99849bf3 | 66 | builtin_platform_driver(gen_pci_driver); |