Commit | Line | Data |
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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> | |
12 | #include <linux/module.h> | |
18c25ff4 | 13 | #include <linux/pm.h> |
1c2a49f6 | 14 | #include <linux/device.h> |
a1a205df | 15 | #include <linux/of_device.h> |
1c2a49f6 AV |
16 | #include <linux/platform_device.h> |
17 | #include <linux/libata.h> | |
18 | #include <linux/ahci_platform.h> | |
2051e924 SS |
19 | #include <linux/acpi.h> |
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 | ||
018d5ef2 AM |
39 | static struct scsi_host_template ahci_platform_sht = { |
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 | ||
17dcc37e SK |
59 | of_property_read_u32(dev->of_node, |
60 | "ports-implemented", &hpriv->force_port_map); | |
61 | ||
a1a205df | 62 | if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci")) |
725c7b57 | 63 | hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ; |
a1a205df | 64 | |
20bdc376 ST |
65 | port = acpi_device_get_match_data(dev); |
66 | if (!port) | |
67 | port = &ahci_port_info; | |
68 | ||
69 | rc = ahci_platform_init_host(pdev, hpriv, port, | |
018d5ef2 | 70 | &ahci_platform_sht); |
1c2a49f6 | 71 | if (rc) |
515d9b2c | 72 | goto disable_resources; |
1c2a49f6 AV |
73 | |
74 | return 0; | |
96a01ba5 HG |
75 | disable_resources: |
76 | ahci_platform_disable_resources(hpriv); | |
1c2a49f6 AV |
77 | return rc; |
78 | } | |
79 | ||
648cb6fd HG |
80 | static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, |
81 | ahci_platform_resume); | |
18c25ff4 | 82 | |
02aac316 | 83 | static const struct of_device_id ahci_of_match[] = { |
30f3c73c AT |
84 | { .compatible = "generic-ahci", }, |
85 | /* Keep the following compatibles for device tree compatibility */ | |
5f098a3e | 86 | { .compatible = "snps,spear-ahci", }, |
2435dcb9 | 87 | { .compatible = "ibm,476gtr-ahci", }, |
c4311471 | 88 | { .compatible = "snps,dwc-ahci", }, |
a1a205df | 89 | { .compatible = "hisilicon,hisi-ahci", }, |
a2127e40 | 90 | { .compatible = "cavium,octeon-7130-ahci", }, |
5e776d7b | 91 | { /* sentinel */ } |
02aac316 RH |
92 | }; |
93 | MODULE_DEVICE_TABLE(of, ahci_of_match); | |
94 | ||
2051e924 | 95 | static const struct acpi_device_id ahci_acpi_match[] = { |
20bdc376 | 96 | { "APMC0D33", (unsigned long)&ahci_port_info_nolpm }, |
2051e924 SS |
97 | { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) }, |
98 | {}, | |
99 | }; | |
100 | MODULE_DEVICE_TABLE(acpi, ahci_acpi_match); | |
101 | ||
1c2a49f6 | 102 | static struct platform_driver ahci_driver = { |
941c77fd | 103 | .probe = ahci_probe, |
83291d65 | 104 | .remove = ata_platform_remove_one, |
8eede5bc | 105 | .shutdown = ahci_platform_shutdown, |
1c2a49f6 | 106 | .driver = { |
018d5ef2 | 107 | .name = DRV_NAME, |
02aac316 | 108 | .of_match_table = ahci_of_match, |
2051e924 | 109 | .acpi_match_table = ahci_acpi_match, |
17ab594f | 110 | .pm = &ahci_pm_ops, |
1c2a49f6 AV |
111 | }, |
112 | }; | |
9a99e476 | 113 | module_platform_driver(ahci_driver); |
1c2a49f6 AV |
114 | |
115 | MODULE_DESCRIPTION("AHCI SATA platform driver"); | |
116 | MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); | |
117 | MODULE_LICENSE("GPL"); | |
118 | MODULE_ALIAS("platform:ahci"); |