mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-26 02:15:23 +07:00
72cbaa3d2f
NCQ feature is unsupported on hisilicon sata controller, so disable it. This version of IP is used by hip04 and hix5hd2 soc. tj: "|=" was replaced with "=" for no reason. Restored "|=". Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org> Sigend-off-by: Tejun Heo <tj@kernel.org>
106 lines
2.7 KiB
C
106 lines
2.7 KiB
C
/*
|
|
* 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;
|
|
unsigned long hflags = 0;
|
|
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"))
|
|
hflags |= AHCI_HFLAG_NO_FBS | AHCI_HFLAG_NO_NCQ;
|
|
|
|
rc = ahci_platform_init_host(pdev, hpriv, &ahci_port_info,
|
|
hflags, 0, 0);
|
|
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 = "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");
|