| /* |
| * AHCI SATA platform driver |
| * |
| * Copyright 2004-2005 Red Hat, Inc. |
| * Jeff Garzik <jgarzik@pobox.com> |
| * Copyright 2010 MontaVista Software, LLC. |
| * Anton Vorontsov <avorontsov@ru.mvista.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2, or (at your option) |
| * any later version. |
| */ |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/pm.h> |
| #include <linux/device.h> |
| #include <linux/of_device.h> |
| #include <linux/platform_device.h> |
| #include <linux/libata.h> |
| #include <linux/ahci_platform.h> |
| #include "ahci.h" |
| |
| static const struct ata_port_info ahci_port_info = { |
| .flags = AHCI_FLAG_COMMON, |
| .pio_mask = ATA_PIO4, |
| .udma_mask = ATA_UDMA6, |
| .port_ops = &ahci_platform_ops, |
| }; |
| |
| static int ahci_probe(struct platform_device *pdev) |
| { |
| struct device *dev = &pdev->dev; |
| struct ahci_platform_data *pdata = dev_get_platdata(dev); |
| struct ahci_host_priv *hpriv; |
| int rc; |
| |
| hpriv = ahci_platform_get_resources(pdev); |
| if (IS_ERR(hpriv)) |
| return PTR_ERR(hpriv); |
| |
| rc = ahci_platform_enable_resources(hpriv); |
| if (rc) |
| return rc; |
| |
| /* |
| * Some platforms might need to prepare for mmio region access, |
| * which could be done in the following init call. So, the mmio |
| * region shouldn't be accessed before init (if provided) has |
| * returned successfully. |
| */ |
| if (pdata && pdata->init) { |
| rc = pdata->init(dev, hpriv->mmio); |
| if (rc) |
| goto disable_resources; |
| } |
| |
| if (of_device_is_compatible(dev->of_node, "hisilicon,hisi-ahci")) |
| hpriv->flags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ; |
| |
| rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info); |
| if (rc) |
| goto pdata_exit; |
| |
| return 0; |
| pdata_exit: |
| if (pdata && pdata->exit) |
| pdata->exit(dev); |
| disable_resources: |
| ahci_platform_disable_resources(hpriv); |
| return rc; |
| } |
| |
| static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_platform_suspend, |
| ahci_platform_resume); |
| |
| static const struct of_device_id ahci_of_match[] = { |
| { .compatible = "generic-ahci", }, |
| /* Keep the following compatibles for device tree compatibility */ |
| { .compatible = "snps,spear-ahci", }, |
| { .compatible = "snps,exynos5440-ahci", }, |
| { .compatible = "ibm,476gtr-ahci", }, |
| { .compatible = "snps,dwc-ahci", }, |
| { .compatible = "hisilicon,hisi-ahci", }, |
| {}, |
| }; |
| MODULE_DEVICE_TABLE(of, ahci_of_match); |
| |
| static struct platform_driver ahci_driver = { |
| .probe = ahci_probe, |
| .remove = ata_platform_remove_one, |
| .driver = { |
| .name = "ahci", |
| .owner = THIS_MODULE, |
| .of_match_table = ahci_of_match, |
| .pm = &ahci_pm_ops, |
| }, |
| }; |
| module_platform_driver(ahci_driver); |
| |
| MODULE_DESCRIPTION("AHCI SATA platform driver"); |
| MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>"); |
| MODULE_LICENSE("GPL"); |
| MODULE_ALIAS("platform:ahci"); |