| | 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> |
| | 17 | #include <linux/pm.h> |
| | 18 | #include <linux/device.h> |
| | 19 | #include <linux/of_device.h> |
| | 20 | #include <linux/platform_device.h> |
| | 21 | #include <linux/libata.h> |
| | 22 | #include <linux/ahci_platform.h> |
| | 23 | #include <linux/acpi.h> |
| | 24 | #include <linux/pci_ids.h> |
| | 25 | #include "ahci.h" |
| | 26 | |
| | 27 | #define DRV_NAME "ahci" |
| | 28 | |
| | 29 | static const struct ata_port_info ahci_port_info = { |
| | 30 | .flags = AHCI_FLAG_COMMON, |
| | 31 | .pio_mask = ATA_PIO4, |
| | 32 | .udma_mask = ATA_UDMA6, |
| | 33 | .port_ops = &ahci_platform_ops, |
| | 34 | }; |
| | 35 | |
| | 36 | static struct scsi_host_template ahci_platform_sht = { |
| | 37 | AHCI_SHT(DRV_NAME), |
| | 38 | }; |
| | 39 | |
| | 40 | static int ahci_probe(struct platform_device *pdev) |
| | 41 | { |
| | 42 | struct device *dev = &pdev->dev; |
| | 43 | struct ahci_host_priv *hpriv; |
| | 44 | int rc; |
| | 45 | |
| | 46 | hpriv = ahci_platform_get_resources(pdev); |
| | 47 | if (IS_ERR(hpriv)) |
| | 48 | return PTR_ERR(hpriv); |
| | 49 | |
| | 50 | rc = ahci_platform_enable_resources(hpriv); |
| | 51 | if (rc) |
| | 52 | return rc; |
| | 53 | |
| | 54 | of_property_read_u32(dev->of_node, |
| | 55 | "ports-implemented", &hpriv->force_port_map); |
| | 56 | |
| | 57 | if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci")) |
| | 58 | hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ; |
| | 59 | |
| | 60 | rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info, |
| | 61 | &ahci_platform_sht); |
| | 62 | if (rc) |
| | 63 | goto disable_resources; |
| | 64 | |
| | 65 | return 0; |
| | 66 | disable_resources: |
| | 67 | ahci_platform_disable_resources(hpriv); |
| | 68 | return rc; |
| | 69 | } |
| | 70 | |
| | 71 | static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, |
| | 72 | ahci_platform_resume); |
| | 73 | |
| | 74 | static const struct of_device_id ahci_of_match[] = { |
| | 75 | { .compatible = "generic-ahci", }, |
| | 76 | /* Keep the following compatibles for device tree compatibility */ |
| | 77 | { .compatible = "snps,spear-ahci", }, |
| | 78 | { .compatible = "snps,exynos5440-ahci", }, |
| | 79 | { .compatible = "ibm,476gtr-ahci", }, |
| | 80 | { .compatible = "snps,dwc-ahci", }, |
| | 81 | { .compatible = "hisilicon,hisi-ahci", }, |
| | 82 | { .compatible = "cavium,octeon-7130-ahci", }, |
| | 83 | {}, |
| | 84 | }; |
| | 85 | MODULE_DEVICE_TABLE(of, ahci_of_match); |
| | 86 | |
| | 87 | static const struct acpi_device_id ahci_acpi_match[] = { |
| | 88 | { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) }, |
| | 89 | {}, |
| | 90 | }; |
| | 91 | MODULE_DEVICE_TABLE(acpi, ahci_acpi_match); |
| | 92 | |
| | 93 | static struct platform_driver ahci_driver = { |
| | 94 | .probe = ahci_probe, |
| | 95 | .remove = ata_platform_remove_one, |
| | 96 | .driver = { |
| | 97 | .name = DRV_NAME, |
| | 98 | .of_match_table = ahci_of_match, |
| | 99 | .acpi_match_table = ahci_acpi_match, |
| | 100 | .pm = &ahci_pm_ops, |
| | 101 | }, |
| | 102 | }; |
| | 103 | module_platform_driver(ahci_driver); |
| | 104 | |
| | 105 | MODULE_DESCRIPTION("AHCI SATA platform driver"); |
| | 106 | MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); |
| | 107 | MODULE_LICENSE("GPL"); |
| | 108 | MODULE_ALIAS("platform:ahci"); |
projects / linux-2.6-block.git / blame_incremental