Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 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> |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 16 | #include <linux/module.h> |
Shiraz Hashim | 18c25ff | 2012-03-16 15:49:55 +0530 | [diff] [blame] | 17 | #include <linux/pm.h> |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 18 | #include <linux/device.h> |
Kefeng Wang | a1a205d | 2014-05-14 14:13:42 +0800 | [diff] [blame] | 19 | #include <linux/of_device.h> |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 20 | #include <linux/platform_device.h> |
| 21 | #include <linux/libata.h> |
| 22 | #include <linux/ahci_platform.h> |
Suthikulpanit, Suravee | 2051e92 | 2015-07-07 01:55:21 +0200 | [diff] [blame] | 23 | #include <linux/acpi.h> |
| 24 | #include <linux/pci_ids.h> |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 25 | #include "ahci.h" |
| 26 | |
Akinobu Mita | 018d5ef | 2015-01-29 08:30:29 +0900 | [diff] [blame] | 27 | #define DRV_NAME "ahci" |
| 28 | |
Hans de Goede | c093e1d | 2014-02-22 17:22:54 +0100 | [diff] [blame] | 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, |
Richard Zhu | 904c04f | 2011-09-28 15:41:54 +0800 | [diff] [blame] | 34 | }; |
| 35 | |
Suman Tripathi | cc5f462 | 2018-09-07 08:32:17 -0600 | [diff] [blame] | 36 | static const struct ata_port_info ahci_port_info_nolpm = { |
| 37 | .flags = AHCI_FLAG_COMMON | ATA_FLAG_NO_LPM, |
| 38 | .pio_mask = ATA_PIO4, |
| 39 | .udma_mask = ATA_UDMA6, |
| 40 | .port_ops = &ahci_platform_ops, |
| 41 | }; |
| 42 | |
Akinobu Mita | 018d5ef | 2015-01-29 08:30:29 +0900 | [diff] [blame] | 43 | static struct scsi_host_template ahci_platform_sht = { |
| 44 | AHCI_SHT(DRV_NAME), |
| 45 | }; |
| 46 | |
Hans de Goede | 23b07d4 | 2014-02-22 16:53:34 +0100 | [diff] [blame] | 47 | static int ahci_probe(struct platform_device *pdev) |
| 48 | { |
| 49 | struct device *dev = &pdev->dev; |
Hans de Goede | 23b07d4 | 2014-02-22 16:53:34 +0100 | [diff] [blame] | 50 | struct ahci_host_priv *hpriv; |
Suman Tripathi | cc5f462 | 2018-09-07 08:32:17 -0600 | [diff] [blame] | 51 | const struct ata_port_info *port; |
Hans de Goede | 23b07d4 | 2014-02-22 16:53:34 +0100 | [diff] [blame] | 52 | int rc; |
| 53 | |
Kunihiko Hayashi | 2d17f46 | 2018-08-22 21:13:03 +0900 | [diff] [blame] | 54 | hpriv = ahci_platform_get_resources(pdev, |
| 55 | AHCI_PLATFORM_GET_RESETS); |
Hans de Goede | 23b07d4 | 2014-02-22 16:53:34 +0100 | [diff] [blame] | 56 | if (IS_ERR(hpriv)) |
| 57 | return PTR_ERR(hpriv); |
| 58 | |
| 59 | rc = ahci_platform_enable_resources(hpriv); |
| 60 | if (rc) |
| 61 | return rc; |
| 62 | |
Srinivas Kandagatla | 17dcc37 | 2016-04-01 08:52:57 +0100 | [diff] [blame] | 63 | of_property_read_u32(dev->of_node, |
| 64 | "ports-implemented", &hpriv->force_port_map); |
| 65 | |
Kefeng Wang | a1a205d | 2014-05-14 14:13:42 +0800 | [diff] [blame] | 66 | if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci")) |
Antoine Ténart | 725c7b5 | 2014-07-30 20:13:56 +0200 | [diff] [blame] | 67 | hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ; |
Kefeng Wang | a1a205d | 2014-05-14 14:13:42 +0800 | [diff] [blame] | 68 | |
Suman Tripathi | cc5f462 | 2018-09-07 08:32:17 -0600 | [diff] [blame] | 69 | port = acpi_device_get_match_data(dev); |
| 70 | if (!port) |
| 71 | port = &ahci_port_info; |
| 72 | |
| 73 | rc = ahci_platform_init_host(pdev, hpriv, port, |
Akinobu Mita | 018d5ef | 2015-01-29 08:30:29 +0900 | [diff] [blame] | 74 | &ahci_platform_sht); |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 75 | if (rc) |
Bartlomiej Zolnierkiewicz | 515d9b2c | 2014-08-12 18:22:27 +0200 | [diff] [blame] | 76 | goto disable_resources; |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 77 | |
| 78 | return 0; |
Hans de Goede | 96a01ba | 2014-02-22 16:53:33 +0100 | [diff] [blame] | 79 | disable_resources: |
| 80 | ahci_platform_disable_resources(hpriv); |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 81 | return rc; |
| 82 | } |
| 83 | |
Hans de Goede | 648cb6f | 2014-02-22 16:53:35 +0100 | [diff] [blame] | 84 | static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, |
| 85 | ahci_platform_resume); |
Shiraz Hashim | 18c25ff | 2012-03-16 15:49:55 +0530 | [diff] [blame] | 86 | |
Rob Herring | 02aac31 | 2010-11-03 21:04:59 -0500 | [diff] [blame] | 87 | static const struct of_device_id ahci_of_match[] = { |
Antoine Ténart | 30f3c73 | 2014-07-30 20:13:58 +0200 | [diff] [blame] | 88 | { .compatible = "generic-ahci", }, |
| 89 | /* Keep the following compatibles for device tree compatibility */ |
Viresh Kumar | 5f098a3 | 2012-04-21 17:40:12 +0530 | [diff] [blame] | 90 | { .compatible = "snps,spear-ahci", }, |
Alistair Popple | 2435dcb | 2013-11-22 13:08:29 +1100 | [diff] [blame] | 91 | { .compatible = "ibm,476gtr-ahci", }, |
Roger Quadros | c431147 | 2014-02-22 16:53:38 +0100 | [diff] [blame] | 92 | { .compatible = "snps,dwc-ahci", }, |
Kefeng Wang | a1a205d | 2014-05-14 14:13:42 +0800 | [diff] [blame] | 93 | { .compatible = "hisilicon,hisi-ahci", }, |
Aleksey Makarov | a2127e4 | 2016-02-11 13:53:08 +0000 | [diff] [blame] | 94 | { .compatible = "cavium,octeon-7130-ahci", }, |
Rob Herring | 02aac31 | 2010-11-03 21:04:59 -0500 | [diff] [blame] | 95 | {}, |
| 96 | }; |
| 97 | MODULE_DEVICE_TABLE(of, ahci_of_match); |
| 98 | |
Suthikulpanit, Suravee | 2051e92 | 2015-07-07 01:55:21 +0200 | [diff] [blame] | 99 | static const struct acpi_device_id ahci_acpi_match[] = { |
Suman Tripathi | cc5f462 | 2018-09-07 08:32:17 -0600 | [diff] [blame] | 100 | { "APMC0D33", (unsigned long)&ahci_port_info_nolpm }, |
Suthikulpanit, Suravee | 2051e92 | 2015-07-07 01:55:21 +0200 | [diff] [blame] | 101 | { ACPI_DEVICE_CLASS(PCI_CLASS_STORAGE_SATA_AHCI, 0xffffff) }, |
| 102 | {}, |
| 103 | }; |
| 104 | MODULE_DEVICE_TABLE(acpi, ahci_acpi_match); |
| 105 | |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 106 | static struct platform_driver ahci_driver = { |
Brian Norris | 941c77f | 2012-11-02 00:46:15 -0700 | [diff] [blame] | 107 | .probe = ahci_probe, |
Brian Norris | 83291d6 | 2012-11-02 00:46:19 -0700 | [diff] [blame] | 108 | .remove = ata_platform_remove_one, |
Nate Watterson | 8eede5b | 2017-07-20 15:26:24 -0400 | [diff] [blame] | 109 | .shutdown = ahci_platform_shutdown, |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 110 | .driver = { |
Akinobu Mita | 018d5ef | 2015-01-29 08:30:29 +0900 | [diff] [blame] | 111 | .name = DRV_NAME, |
Rob Herring | 02aac31 | 2010-11-03 21:04:59 -0500 | [diff] [blame] | 112 | .of_match_table = ahci_of_match, |
Suthikulpanit, Suravee | 2051e92 | 2015-07-07 01:55:21 +0200 | [diff] [blame] | 113 | .acpi_match_table = ahci_acpi_match, |
Brian Norris | 17ab594 | 2011-11-18 11:10:10 -0800 | [diff] [blame] | 114 | .pm = &ahci_pm_ops, |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 115 | }, |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 116 | }; |
Brian Norris | 9a99e47 | 2012-11-02 00:46:16 -0700 | [diff] [blame] | 117 | module_platform_driver(ahci_driver); |
Anton Vorontsov | 1c2a49f | 2010-03-04 20:06:06 +0300 | [diff] [blame] | 118 | |
| 119 | MODULE_DESCRIPTION("AHCI SATA platform driver"); |
| 120 | MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); |
| 121 | MODULE_LICENSE("GPL"); |
| 122 | MODULE_ALIAS("platform:ahci"); |