projects / mirror_ubuntu-artful-kernel.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 | 18 | #include <linux/device.h> |
| a1a205df | 19 | #include <linux/of_device.h> |
| 1c2a49f6 AV |
20 | #include <linux/platform_device.h> |
| 21 | #include <linux/libata.h> | |
| 22 | #include <linux/ahci_platform.h> | |
| 23 | #include "ahci.h" | |
| 24 | ||
| c093e1d3 HG |
25 | static const struct ata_port_info ahci_port_info = { |
| 26 | .flags = AHCI_FLAG_COMMON, | |
| 27 | .pio_mask = ATA_PIO4, | |
| 28 | .udma_mask = ATA_UDMA6, | |
| 29 | .port_ops = &ahci_platform_ops, | |
| 904c04fe RZ |
30 | }; |
| 31 | ||
| 23b07d4c HG |
32 | static int ahci_probe(struct platform_device *pdev) |
| 33 | { | |
| 34 | struct device *dev = &pdev->dev; | |
| 35 | struct ahci_platform_data *pdata = dev_get_platdata(dev); | |
| 23b07d4c HG |
36 | struct ahci_host_priv *hpriv; |
| 37 | int rc; | |
| 38 | ||
| 39 | hpriv = ahci_platform_get_resources(pdev); | |
| 40 | if (IS_ERR(hpriv)) | |
| 41 | return PTR_ERR(hpriv); | |
| 42 | ||
| 43 | rc = ahci_platform_enable_resources(hpriv); | |
| 44 | if (rc) | |
| 45 | return rc; | |
| 46 | ||
| 47 | /* | |
| 48 | * Some platforms might need to prepare for mmio region access, | |
| 49 | * which could be done in the following init call. So, the mmio | |
| 50 | * region shouldn't be accessed before init (if provided) has | |
| 51 | * returned successfully. | |
| 52 | */ | |
| 53 | if (pdata && pdata->init) { | |
| 54 | rc = pdata->init(dev, hpriv->mmio); | |
| 55 | if (rc) | |
| 56 | goto disable_resources; | |
| 57 | } | |
| 58 | ||
| a1a205df | 59 | if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci")) |
| 725c7b57 | 60 | hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ; |
| a1a205df | 61 | |
| 725c7b57 | 62 | rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info); |
| 1c2a49f6 | 63 | if (rc) |
| f1e70c2c | 64 | goto pdata_exit; |
| 1c2a49f6 AV |
65 | |
| 66 | return 0; | |
| f1e70c2c | 67 | pdata_exit: |
| 1c2a49f6 AV |
68 | if (pdata && pdata->exit) |
| 69 | pdata->exit(dev); | |
| 96a01ba5 HG |
70 | disable_resources: |
| 71 | ahci_platform_disable_resources(hpriv); | |
| 1c2a49f6 AV |
72 | return rc; |
| 73 | } | |
| 74 | ||
| 648cb6fd HG |
75 | static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, |
| 76 | ahci_platform_resume); | |
| 18c25ff4 | 77 | |
| 02aac316 | 78 | static const struct of_device_id ahci_of_match[] = { |
| 30f3c73c AT |
79 | { .compatible = "generic-ahci", }, |
| 80 | /* Keep the following compatibles for device tree compatibility */ | |
| 5f098a3e | 81 | { .compatible = "snps,spear-ahci", }, |
| 1e8f5f76 | 82 | { .compatible = "snps,exynos5440-ahci", }, |
| 2435dcb9 | 83 | { .compatible = "ibm,476gtr-ahci", }, |
| c4311471 | 84 | { .compatible = "snps,dwc-ahci", }, |
| a1a205df | 85 | { .compatible = "hisilicon,hisi-ahci", }, |
| 02aac316 RH |
86 | {}, |
| 87 | }; | |
| 88 | MODULE_DEVICE_TABLE(of, ahci_of_match); | |
| 89 | ||
| 1c2a49f6 | 90 | static struct platform_driver ahci_driver = { |
| 941c77fd | 91 | .probe = ahci_probe, |
| 83291d65 | 92 | .remove = ata_platform_remove_one, |
| 1c2a49f6 AV |
93 | .driver = { |
| 94 | .name = "ahci", | |
| 95 | .owner = THIS_MODULE, | |
| 02aac316 | 96 | .of_match_table = ahci_of_match, |
| 17ab594f | 97 | .pm = &ahci_pm_ops, |
| 1c2a49f6 AV |
98 | }, |
| 99 | }; | |
| 9a99e476 | 100 | module_platform_driver(ahci_driver); |
| 1c2a49f6 AV |
101 | |
| 102 | MODULE_DESCRIPTION("AHCI SATA platform driver"); | |
| 103 | MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); | |
| 104 | MODULE_LICENSE("GPL"); | |
| 105 | MODULE_ALIAS("platform:ahci"); |