projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c2a49f6 AV |
1 | /* |
| 2 | * AHCI SATA platform driver | |
| 3 | * | |
| 4 | * Copyright 2004-2005 Red Hat, Inc. | |
| 5 | * Jeff Garzik <jgarzik@pobox.com> | |
| 6 | * Copyright 2010 MontaVista Software, LLC. | |
| 7 | * Anton Vorontsov <avorontsov@ru.mvista.com> | |
| 8 | * | |
| 9 | * This program is free software; you can redistribute it and/or modify | |
| 10 | * it under the terms of the GNU General Public License as published by | |
| 11 | * the Free Software Foundation; either version 2, or (at your option) | |
| 12 | * any later version. | |
| 13 | */ | |
| 14 | ||
| 15 | #include <linux/kernel.h> | |
| 16 | #include <linux/module.h> | |
| 18c25ff4 | 17 | #include <linux/pm.h> |
| 1c2a49f6 AV |
18 | #include <linux/device.h> |
| 19 | #include <linux/platform_device.h> | |
| 20 | #include <linux/libata.h> | |
| 21 | #include <linux/ahci_platform.h> | |
| 22 | #include "ahci.h" | |
| 23 | ||
| c093e1d3 HG |
24 | static const struct ata_port_info ahci_port_info = { |
| 25 | .flags = AHCI_FLAG_COMMON, | |
| 26 | .pio_mask = ATA_PIO4, | |
| 27 | .udma_mask = ATA_UDMA6, | |
| 28 | .port_ops = &ahci_platform_ops, | |
| 904c04fe RZ |
29 | }; |
| 30 | ||
| 23b07d4c HG |
31 | static int ahci_probe(struct platform_device *pdev) |
| 32 | { | |
| 33 | struct device *dev = &pdev->dev; | |
| 34 | struct ahci_platform_data *pdata = dev_get_platdata(dev); | |
| 23b07d4c HG |
35 | struct ahci_host_priv *hpriv; |
| 36 | int rc; | |
| 37 | ||
| 38 | hpriv = ahci_platform_get_resources(pdev); | |
| 39 | if (IS_ERR(hpriv)) | |
| 40 | return PTR_ERR(hpriv); | |
| 41 | ||
| 42 | rc = ahci_platform_enable_resources(hpriv); | |
| 43 | if (rc) | |
| 44 | return rc; | |
| 45 | ||
| 46 | /* | |
| 47 | * Some platforms might need to prepare for mmio region access, | |
| 48 | * which could be done in the following init call. So, the mmio | |
| 49 | * region shouldn't be accessed before init (if provided) has | |
| 50 | * returned successfully. | |
| 51 | */ | |
| 52 | if (pdata && pdata->init) { | |
| 53 | rc = pdata->init(dev, hpriv->mmio); | |
| 54 | if (rc) | |
| 55 | goto disable_resources; | |
| 56 | } | |
| 57 | ||
| 6ef95e87 | 58 | rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info, 0, 0); |
| 1c2a49f6 | 59 | if (rc) |
| f1e70c2c | 60 | goto pdata_exit; |
| 1c2a49f6 AV |
61 | |
| 62 | return 0; | |
| f1e70c2c | 63 | pdata_exit: |
| 1c2a49f6 AV |
64 | if (pdata && pdata->exit) |
| 65 | pdata->exit(dev); | |
| 96a01ba5 HG |
66 | disable_resources: |
| 67 | ahci_platform_disable_resources(hpriv); | |
| 1c2a49f6 AV |
68 | return rc; |
| 69 | } | |
| 70 | ||
| 648cb6fd HG |
71 | static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, |
| 72 | ahci_platform_resume); | |
| 18c25ff4 | 73 | |
| 02aac316 | 74 | static const struct of_device_id ahci_of_match[] = { |
| 5f098a3e | 75 | { .compatible = "snps,spear-ahci", }, |
| 1e8f5f76 | 76 | { .compatible = "snps,exynos5440-ahci", }, |
| 2435dcb9 | 77 | { .compatible = "ibm,476gtr-ahci", }, |
| c4311471 | 78 | { .compatible = "snps,dwc-ahci", }, |
| 02aac316 RH |
79 | {}, |
| 80 | }; | |
| 81 | MODULE_DEVICE_TABLE(of, ahci_of_match); | |
| 82 | ||
| 1c2a49f6 | 83 | static struct platform_driver ahci_driver = { |
| 941c77fd | 84 | .probe = ahci_probe, |
| 83291d65 | 85 | .remove = ata_platform_remove_one, |
| 1c2a49f6 AV |
86 | .driver = { |
| 87 | .name = "ahci", | |
| 88 | .owner = THIS_MODULE, | |
| 02aac316 | 89 | .of_match_table = ahci_of_match, |
| 17ab594f | 90 | .pm = &ahci_pm_ops, |
| 1c2a49f6 AV |
91 | }, |
| 92 | }; | |
| 9a99e476 | 93 | module_platform_driver(ahci_driver); |
| 1c2a49f6 AV |
94 | |
| 95 | MODULE_DESCRIPTION("AHCI SATA platform driver"); | |
| 96 | MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); | |
| 97 | MODULE_LICENSE("GPL"); | |
| 98 | MODULE_ALIAS("platform:ahci"); |