projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 8d7c56d0 | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 1c2a49f6 AV |
2 | /* |
| 3 | * AHCI SATA platform driver | |
| 4 | * | |
| 5 | * Copyright 2004-2005 Red Hat, Inc. | |
| 6 | * Jeff Garzik <jgarzik@pobox.com> | |
| 7 | * Copyright 2010 MontaVista Software, LLC. | |
| 8 | * Anton Vorontsov <avorontsov@ru.mvista.com> | |
| 1c2a49f6 AV |
9 | */ |
| 10 | ||
| 11 | #include <linux/kernel.h> | |
| 259b8366 | 12 | #include <linux/mod_devicetable.h> |
| 1c2a49f6 | 13 | #include <linux/module.h> |
| 18c25ff4 | 14 | #include <linux/pm.h> |
| 1c2a49f6 AV |
15 | #include <linux/device.h> |
| 16 | #include <linux/platform_device.h> | |
| 259b8366 | 17 | #include <linux/property.h> |
| 1c2a49f6 AV |
18 | #include <linux/libata.h> |
| 19 | #include <linux/ahci_platform.h> | |
| 2051e924 | 20 | #include <linux/pci_ids.h> |
| 1c2a49f6 AV |
21 | #include "ahci.h" |
| 22 | ||
| 018d5ef2 AM |
23 | #define DRV_NAME "ahci" |
| 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 | ||
| 20bdc376 ST |
32 | static const struct ata_port_info ahci_port_info_nolpm = { |
| 33 | .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_LPM, | |
| 34 | .pio_mask = ATA_PIO4, | |
| 35 | .udma_mask = ATA_UDMA6, | |
| 36 | .port_ops = &ahci_platform_ops, | |
| 37 | }; | |
| 38 | ||
| 25df73d9 | 39 | static const struct scsi_host_template ahci_platform_sht = { |
| 018d5ef2 AM |
40 | AHCI_SHT(DRV_NAME), |
| 41 | }; | |
| 42 | ||
| 23b07d4c HG |
43 | static int ahci_probe(struct platform_device *pdev) |
| 44 | { | |
| 45 | struct device *dev = &pdev->dev; | |
| 23b07d4c | 46 | struct ahci_host_priv *hpriv; |
| 20bdc376 | 47 | const struct ata_port_info *port; |
| 23b07d4c HG |
48 | int rc; |
| 49 | ||
| 2d17f460 KH |
50 | hpriv = ahci_platform_get_resources(pdev, |
| 51 | AHCI_PLATFORM_GET_RESETS); | |
| 23b07d4c HG |
52 | if (IS_ERR(hpriv)) |
| 53 | return PTR_ERR(hpriv); | |
| 54 | ||
| 55 | rc = ahci_platform_enable_resources(hpriv); | |
| 56 | if (rc) | |
| 57 | return rc; | |
| 58 | ||
| 259b8366 | 59 | if (device_is_compatible(dev, "hisilicon,hisi-ahci")) |
| 725c7b57 | 60 | hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ; |
| a1a205df | 61 | |
| 259b8366 | 62 | port = device_get_match_data(dev); |
| 20bdc376 ST |
63 | if (!port) |
| 64 | port = &ahci_port_info; | |
| 65 | ||
| 66 | rc = ahci_platform_init_host(pdev, hpriv, port, | |
| 018d5ef2 | 67 | &ahci_platform_sht); |
| 1c2a49f6 | 68 | if (rc) |
| 515d9b2c | 69 | goto disable_resources; |
| 1c2a49f6 AV |
70 | |
| 71 | return 0; | |
| 96a01ba5 HG |
72 | disable_resources: |
| 73 | ahci_platform_disable_resources(hpriv); | |
| 1c2a49f6 AV |
74 | return rc; |
| 75 | } | |
| 76 | ||
| 648cb6fd HG |
77 | static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, |
| 78 | ahci_platform_resume); | |
| 18c25ff4 | 79 | |
| 02aac316 | 80 | static const struct of_device_id ahci_of_match[] = { |
| 30f3c73c AT |
81 | { .compatible = "generic-ahci", }, |
| 82 | /* Keep the following compatibles for device tree compatibility */ | |
| 2435dcb9 | 83 | { .compatible = "ibm,476gtr-ahci", }, |
| a1a205df | 84 | { .compatible = "hisilicon,hisi-ahci", }, |
| a2127e40 | 85 | { .compatible = "cavium,octeon-7130-ahci", }, |
| 5e776d7b | 86 | { /* sentinel */ } |
| 02aac316 RH |
87 | }; |
| 88 | MODULE_DEVICE_TABLE(of, ahci_of_match); | |
| 89 | ||
| 2051e924 | 90 | static const struct acpi_device_id ahci_acpi_match[] = { |
| 20bdc376 | 91 | { "APMC0D33", (unsigned long)&ahci_port_info_nolpm }, |
| 2051e924 SS |
92 | { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) }, |
| 93 | {}, | |
| 94 | }; | |
| 95 | MODULE_DEVICE_TABLE(acpi, ahci_acpi_match); | |
| 96 | ||
| 1c2a49f6 | 97 | static struct platform_driver ahci_driver = { |
| 941c77fd | 98 | .probe = ahci_probe, |
| a7eb54d4 | 99 | .remove_new = ata_platform_remove_one, |
| 8eede5bc | 100 | .shutdown = ahci_platform_shutdown, |
| 1c2a49f6 | 101 | .driver = { |
| 018d5ef2 | 102 | .name = DRV_NAME, |
| 02aac316 | 103 | .of_match_table = ahci_of_match, |
| 2051e924 | 104 | .acpi_match_table = ahci_acpi_match, |
| 17ab594f | 105 | .pm = &ahci_pm_ops, |
| 1c2a49f6 AV |
106 | }, |
| 107 | }; | |
| 9a99e476 | 108 | module_platform_driver(ahci_driver); |
| 1c2a49f6 AV |
109 | |
| 110 | MODULE_DESCRIPTION("AHCI SATA platform driver"); | |
| 111 | MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); | |
| 112 | MODULE_LICENSE("GPL"); | |
| 113 | MODULE_ALIAS("platform:ahci"); |