projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 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); |