Commit a190d948 authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Greg Kroah-Hartman
Browse files

usb: remove ehci-w90x900 driver 



The ARM w90x900 platform is getting removed, so this driver is obsolete.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20190809202749.742267-16-arnd@arndb.de


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 894efaf5

drivers/usb/host/Kconfig

+0 −6
Original line number Diff line number Diff line
@@ -287,12 +287,6 @@ config USB_EHCI_MV 
	  Dova, Armada 370 and Armada XP. See "Support for Marvell EBU

	  on-chip EHCI USB controller" for those.



config USB_W90X900_EHCI

	tristate "W90X900(W90P910) EHCI support"

	depends on ARCH_W90X900

	---help---

		Enables support for the W90X900 USB controller



config USB_CNS3XXX_EHCI

	bool "Cavium CNS3XXX EHCI Module (DEPRECATED)"

	depends on ARCH_CNS3XXX

drivers/usb/host/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -49,7 +49,6 @@ obj-$(CONFIG_USB_EHCI_HCD_STI) += ehci-st.o 
obj-$(CONFIG_USB_EHCI_EXYNOS)	+= ehci-exynos.o

obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o

obj-$(CONFIG_USB_EHCI_TEGRA)	+= ehci-tegra.o

obj-$(CONFIG_USB_W90X900_EHCI)	+= ehci-w90x900.o



obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o

obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o

drivers/usb/host/ehci-w90x900.c

deleted100644 → 0
+0 −130
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * linux/driver/usb/host/ehci-w90x900.c

 *

 * Copyright (c) 2008 Nuvoton technology corporation.

 *

 * Wan ZongShun <mcuos.com@gmail.com>

 */



#include <linux/dma-mapping.h>

#include <linux/io.h>

#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/of.h>

#include <linux/platform_device.h>

#include <linux/usb.h>

#include <linux/usb/hcd.h>



#include "ehci.h"



/* enable phy0 and phy1 for w90p910 */

#define	ENPHY		(0x01<<8)

#define PHY0_CTR	(0xA4)

#define PHY1_CTR	(0xA8)



#define DRIVER_DESC "EHCI w90x900 driver"



static const char hcd_name[] = "ehci-w90x900 ";



static struct hc_driver __read_mostly ehci_w90x900_hc_driver;



static int ehci_w90x900_probe(struct platform_device *pdev)

{

	struct usb_hcd *hcd;

	struct ehci_hcd *ehci;

	struct resource *res;

	int retval = 0, irq;

	unsigned long val;



	hcd = usb_create_hcd(&ehci_w90x900_hc_driver,

			&pdev->dev, "w90x900 EHCI");

	if (!hcd) {

		retval = -ENOMEM;

		goto err1;

	}



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	hcd->regs = devm_ioremap_resource(&pdev->dev, res);

	if (IS_ERR(hcd->regs)) {

		retval = PTR_ERR(hcd->regs);

		goto err2;

	}

	hcd->rsrc_start = res->start;

	hcd->rsrc_len = resource_size(res);



	ehci = hcd_to_ehci(hcd);

	ehci->caps = hcd->regs;

	ehci->regs = hcd->regs +

		HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));



	/* enable PHY 0,1,the regs only apply to w90p910

	 *  0xA4,0xA8 were offsets of PHY0 and PHY1 controller of

	 *  w90p910 IC relative to ehci->regs.

	 */

	val = __raw_readl(ehci->regs+PHY0_CTR);

	val |= ENPHY;

	__raw_writel(val, ehci->regs+PHY0_CTR);



	val = __raw_readl(ehci->regs+PHY1_CTR);

	val |= ENPHY;

	__raw_writel(val, ehci->regs+PHY1_CTR);



	irq = platform_get_irq(pdev, 0);

	if (irq < 0) {

		retval = irq;

		goto err2;

	}



	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);

	if (retval != 0)

		goto err2;



	device_wakeup_enable(hcd->self.controller);

	return retval;

err2:

	usb_put_hcd(hcd);

err1:

	return retval;

}



static int ehci_w90x900_remove(struct platform_device *pdev)

{

	struct usb_hcd *hcd = platform_get_drvdata(pdev);



	usb_remove_hcd(hcd);

	usb_put_hcd(hcd);



	return 0;

}



static struct platform_driver ehci_hcd_w90x900_driver = {

	.probe  = ehci_w90x900_probe,

	.remove = ehci_w90x900_remove,

	.driver = {

		.name = "w90x900-ehci",

	},

};



static int __init ehci_w90X900_init(void)

{

	if (usb_disabled())

		return -ENODEV;



	pr_info("%s: " DRIVER_DESC "\n", hcd_name);



	ehci_init_driver(&ehci_w90x900_hc_driver, NULL);

	return platform_driver_register(&ehci_hcd_w90x900_driver);

}

module_init(ehci_w90X900_init);



static void __exit ehci_w90X900_cleanup(void)

{

	platform_driver_unregister(&ehci_hcd_w90x900_driver);

}

module_exit(ehci_w90X900_cleanup);



MODULE_DESCRIPTION(DRIVER_DESC);

MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");

MODULE_ALIAS("platform:w90p910-ehci");

MODULE_LICENSE("GPL v2");