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| 2 | |
| 3 | * AHCI SATA platform driver
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| 4 | *
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| 5 | * Copyright 2004-2005 Red Hat, Inc.
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| 6 | * Jeff Garzik <[email protected]>
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| 7 | * Copyright 2010 MontaVista Software, LLC.
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| 8 | * Anton Vorontsov <[email protected]>
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| 9 |
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| 10 |
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| 11 | #include <linux/kernel.h>
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| 12 | #include <linux/module.h>
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| 13 | #include <linux/pm.h>
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| 14 | #include <linux/device.h>
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| 15 | #include <linux/platform_device.h>
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| 16 | #include <linux/property.h>
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| 17 | #include <linux/libata.h>
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| 18 | #include <linux/ahci_platform.h>
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| 19 | #include <linux/pci_ids.h>
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| 20 | #include "ahci.h"
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| 21 |
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| 22 | #define DRV_NAME "ahci"
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| 23 |
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| 24 | static const struct ata_port_info ahci_port_info = {
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| 25 | .flags = AHCI_FLAG_COMMON,
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| 26 | .pio_mask = ATA_PIO4,
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| 27 | .udma_mask = ATA_UDMA6,
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| 28 | .port_ops = &ahci_platform_ops,
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| 29 | };
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| 30 |
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| 31 | static const struct ata_port_info ahci_port_info_nolpm = {
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| 32 | .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_LPM,
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| 33 | .pio_mask = ATA_PIO4,
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| 34 | .udma_mask = ATA_UDMA6,
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| 35 | .port_ops = &ahci_platform_ops,
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| 36 | };
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| 37 |
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| 38 | static const struct scsi_host_template ahci_platform_sht = {
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| 39 | AHCI_SHT(DRV_NAME),
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| 40 | };
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| 41 |
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| 42 | static int ahci_probe(struct platform_device *pdev)
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| 43 | {
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| 44 | struct device *dev = &pdev->dev;
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| 45 | struct ahci_host_priv *hpriv;
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| 46 | const struct ata_port_info *port;
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| 47 | int rc;
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| 48 |
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| 49 | hpriv = ahci_platform_get_resources(pdev,
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| 50 | AHCI_PLATFORM_GET_RESETS);
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| 51 | if (IS_ERR(hpriv))
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| 52 | return PTR_ERR(hpriv);
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| 53 |
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| 54 | rc = ahci_platform_enable_resources(hpriv);
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| 55 | if (rc)
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| 56 | return rc;
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| 57 |
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| 58 | if (device_is_compatible(dev, "hisilicon,hisi-ahci"))
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| 59 | hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
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| 60 |
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| 61 | port = device_get_match_data(dev);
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| 62 | if (!port)
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| 63 | port = &ahci_port_info;
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| 64 |
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| 65 | rc = ahci_platform_init_host(pdev, hpriv, port,
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| 66 | &ahci_platform_sht);
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| 67 | if (rc)
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| 68 | goto disable_resources;
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| 69 |
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| 70 | return 0;
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| 71 | disable_resources:
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| 72 | ahci_platform_disable_resources(hpriv);
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| 73 | return rc;
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| 74 | }
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| 75 |
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| 76 | static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend,
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| 77 | ahci_platform_resume);
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| 78 |
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| 79 | static const struct of_device_id ahci_of_match[] = {
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| 80 | { .compatible = "generic-ahci", },
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| 81 |
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| 82 | { .compatible = "ibm,476gtr-ahci", },
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| 83 | { .compatible = "hisilicon,hisi-ahci", },
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| 84 | { .compatible = "cavium,octeon-7130-ahci", },
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| 85 | { }
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| 86 | };
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| 87 | MODULE_DEVICE_TABLE(of, ahci_of_match);
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| 88 |
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| 89 | static const struct acpi_device_id ahci_acpi_match[] = {
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| 90 | { .id = "APMC0D33", .driver_data = (unsigned long)&ahci_port_info_nolpm },
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| 91 | { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) },
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| 92 | { }
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| 93 | };
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| 94 | MODULE_DEVICE_TABLE(acpi, ahci_acpi_match);
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| 95 |
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| 96 | static struct platform_driver ahci_driver = {
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| 97 | .probe = ahci_probe,
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| 98 | .remove = ata_platform_remove_one,
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| 99 | .shutdown = ahci_platform_shutdown,
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| 100 | .driver = {
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| 101 | .name = DRV_NAME,
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| 102 | .of_match_table = ahci_of_match,
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| 103 | .acpi_match_table = ahci_acpi_match,
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| 104 | .pm = &ahci_pm_ops,
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| 105 | },
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| 106 | };
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| 107 | module_platform_driver(ahci_driver);
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| 108 |
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| 109 | MODULE_DESCRIPTION("AHCI SATA platform driver");
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| 110 | MODULE_AUTHOR("Anton Vorontsov <[email protected]>");
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| 111 | MODULE_LICENSE("GPL");
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| 112 | MODULE_ALIAS("platform:ahci");
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