2 * AHCI SATA platform driver
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>
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)
15 #include <linux/kernel.h>
16 #include <linux/module.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>
27 #define DRV_NAME "ahci"
29 static const struct ata_port_info ahci_port_info
= {
30 .flags
= AHCI_FLAG_COMMON
,
32 .udma_mask
= ATA_UDMA6
,
33 .port_ops
= &ahci_platform_ops
,
36 static struct scsi_host_template ahci_platform_sht
= {
40 static int ahci_probe(struct platform_device
*pdev
)
42 struct device
*dev
= &pdev
->dev
;
43 struct ahci_host_priv
*hpriv
;
46 hpriv
= ahci_platform_get_resources(pdev
);
48 return PTR_ERR(hpriv
);
50 rc
= ahci_platform_enable_resources(hpriv
);
54 of_property_read_u32(dev
->of_node
,
55 "ports-implemented", &hpriv
->force_port_map
);
57 if (of_device_is_compatible(dev
->of_node
, "hisilicon,hisi-ahci"))
58 hpriv
->flags
|= AHCI_HFLAG_NO_FBS
| AHCI_HFLAG_NO_NCQ
;
60 rc
= ahci_platform_init_host(pdev
, hpriv
, &ahci_port_info
,
63 goto disable_resources
;
67 ahci_platform_disable_resources(hpriv
);
71 static SIMPLE_DEV_PM_OPS(ahci_pm_ops
, ahci_platform_suspend
,
72 ahci_platform_resume
);
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", },
84 MODULE_DEVICE_TABLE(of
, ahci_of_match
);
86 static const struct acpi_device_id ahci_acpi_match
[] = {
87 { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI
, 0xffffff) },
90 MODULE_DEVICE_TABLE(acpi
, ahci_acpi_match
);
92 static struct platform_driver ahci_driver
= {
94 .remove
= ata_platform_remove_one
,
97 .of_match_table
= ahci_of_match
,
98 .acpi_match_table
= ahci_acpi_match
,
102 module_platform_driver(ahci_driver
);
104 MODULE_DESCRIPTION("AHCI SATA platform driver");
105 MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
106 MODULE_LICENSE("GPL");
107 MODULE_ALIAS("platform:ahci");