blob: 78d6ae0b90c400f807f18cdd6f4b6d214d175a32 [file] [log] [blame]
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +03001/*
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 Vorontsov1c2a49f2010-03-04 20:06:06 +030016#include <linux/module.h>
Shiraz Hashim18c25ff2012-03-16 15:49:55 +053017#include <linux/pm.h>
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030018#include <linux/device.h>
Kefeng Wanga1a205d2014-05-14 14:13:42 +080019#include <linux/of_device.h>
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030020#include <linux/platform_device.h>
21#include <linux/libata.h>
22#include <linux/ahci_platform.h>
23#include "ahci.h"
24
Akinobu Mita018d5ef2015-01-29 08:30:29 +090025#define DRV_NAME "ahci"
26
Hans de Goedec093e1d2014-02-22 17:22:54 +010027static const struct ata_port_info ahci_port_info = {
28 .flags = AHCI_FLAG_COMMON,
29 .pio_mask = ATA_PIO4,
30 .udma_mask = ATA_UDMA6,
31 .port_ops = &ahci_platform_ops,
Richard Zhu904c04f2011-09-28 15:41:54 +080032};
33
Akinobu Mita018d5ef2015-01-29 08:30:29 +090034static struct scsi_host_template ahci_platform_sht = {
35 AHCI_SHT(DRV_NAME),
36};
37
Hans de Goede23b07d42014-02-22 16:53:34 +010038static int ahci_probe(struct platform_device *pdev)
39{
40 struct device *dev = &pdev->dev;
Hans de Goede23b07d42014-02-22 16:53:34 +010041 struct ahci_host_priv *hpriv;
42 int rc;
43
44 hpriv = ahci_platform_get_resources(pdev);
45 if (IS_ERR(hpriv))
46 return PTR_ERR(hpriv);
47
48 rc = ahci_platform_enable_resources(hpriv);
49 if (rc)
50 return rc;
51
Kefeng Wanga1a205d2014-05-14 14:13:42 +080052 if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci"))
Antoine Ténart725c7b52014-07-30 20:13:56 +020053 hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
Kefeng Wanga1a205d2014-05-14 14:13:42 +080054
Akinobu Mita018d5ef2015-01-29 08:30:29 +090055 rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info,
56 &ahci_platform_sht);
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030057 if (rc)
Bartlomiej Zolnierkiewicz515d9b2c2014-08-12 18:22:27 +020058 goto disable_resources;
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030059
60 return 0;
Hans de Goede96a01ba2014-02-22 16:53:33 +010061disable_resources:
62 ahci_platform_disable_resources(hpriv);
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030063 return rc;
64}
65
Hans de Goede648cb6f2014-02-22 16:53:35 +010066static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend,
67 ahci_platform_resume);
Shiraz Hashim18c25ff2012-03-16 15:49:55 +053068
Rob Herring02aac312010-11-03 21:04:59 -050069static const struct of_device_id ahci_of_match[] = {
Antoine Ténart30f3c732014-07-30 20:13:58 +020070 { .compatible = "generic-ahci", },
71 /* Keep the following compatibles for device tree compatibility */
Viresh Kumar5f098a32012-04-21 17:40:12 +053072 { .compatible = "snps,spear-ahci", },
Girish K S1e8f5f72013-04-16 14:58:02 +053073 { .compatible = "snps,exynos5440-ahci", },
Alistair Popple2435dcb2013-11-22 13:08:29 +110074 { .compatible = "ibm,476gtr-ahci", },
Roger Quadrosc4311472014-02-22 16:53:38 +010075 { .compatible = "snps,dwc-ahci", },
Kefeng Wanga1a205d2014-05-14 14:13:42 +080076 { .compatible = "hisilicon,hisi-ahci", },
Rob Herring02aac312010-11-03 21:04:59 -050077 {},
78};
79MODULE_DEVICE_TABLE(of, ahci_of_match);
80
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030081static struct platform_driver ahci_driver = {
Brian Norris941c77f2012-11-02 00:46:15 -070082 .probe = ahci_probe,
Brian Norris83291d62012-11-02 00:46:19 -070083 .remove = ata_platform_remove_one,
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030084 .driver = {
Akinobu Mita018d5ef2015-01-29 08:30:29 +090085 .name = DRV_NAME,
Rob Herring02aac312010-11-03 21:04:59 -050086 .of_match_table = ahci_of_match,
Brian Norris17ab5942011-11-18 11:10:10 -080087 .pm = &ahci_pm_ops,
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030088 },
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030089};
Brian Norris9a99e472012-11-02 00:46:16 -070090module_platform_driver(ahci_driver);
Anton Vorontsov1c2a49f2010-03-04 20:06:06 +030091
92MODULE_DESCRIPTION("AHCI SATA platform driver");
93MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
94MODULE_LICENSE("GPL");
95MODULE_ALIAS("platform:ahci");