hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

USB: OHCI: remove CNS3xxx OHCI platform driver 

All users have been converted to use the OHCI platform driver instead, thus
making ohci-cns3xxx, so remove it.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Florian Fainelli 2012-10-08 15:11:33 +02:00 committed by Greg Kroah-Hartman
parent 6da00dd7b4
commit c23920b05b
3 changed files with 5 additions and 172 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/usb/host/Kconfig
View File

@ -400,9 +400,13 @@ config USB_OHCI_EXYNOS
Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
config USB_CNS3XXX_OHCI
bool "Cavium CNS3XXX OHCI Module"
bool "Cavium CNS3XXX OHCI Module (DEPRECATED)"
depends on USB_OHCI_HCD && ARCH_CNS3XXX
select USB_OHCI_HCD_PLATFORM
---help---
This option is deprecated now and the driver was removed, use
USB_OHCI_HCD_PLATFORM instead.
Enable support for the CNS3XXX SOC's on-chip OHCI controller.
It is needed for low-speed USB 1.0 device support.

166
drivers/usb/host/ohci-cns3xxx.c
View File

@ -1,166 +0,0 @@
/*
* Copyright 2008 Cavium Networks
*
* This file is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, Version 2, as
* published by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <linux/atomic.h>
#include <mach/cns3xxx.h>
#include <mach/pm.h>
static int __devinit
cns3xxx_ohci_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
int ret;
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*
* Set USB AHB INCR length to 16
*/
if (atomic_inc_return(&usb_pwr_ref) == 1) {
cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
__raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
MISC_CHIP_CONFIG_REG);
}
ret = ohci_init(ohci);
if (ret < 0)
return ret;
ohci->num_ports = 1;
ret = ohci_run(ohci);
if (ret < 0) {
dev_err(hcd->self.controller, "can't start %s\n",
hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
return 0;
}
static const struct hc_driver cns3xxx_ohci_hc_driver = {
.description = hcd_name,
.product_desc = "CNS3XXX OHCI Host controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
.irq = ohci_irq,
.flags = HCD_USB11 | HCD_MEMORY,
.start = cns3xxx_ohci_start,
.stop = ohci_stop,
.shutdown = ohci_shutdown,
.urb_enqueue = ohci_urb_enqueue,
.urb_dequeue = ohci_urb_dequeue,
.endpoint_disable = ohci_endpoint_disable,
.get_frame_number = ohci_get_frame,
.hub_status_data = ohci_hub_status_data,
.hub_control = ohci_hub_control,
#ifdef CONFIG_PM
.bus_suspend = ohci_bus_suspend,
.bus_resume = ohci_bus_resume,
#endif
.start_port_reset = ohci_start_port_reset,
};
static int cns3xxx_ohci_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct usb_hcd *hcd;
const struct hc_driver *driver = &cns3xxx_ohci_hc_driver;
struct resource *res;
int irq;
int retval;
if (usb_disabled())
return -ENODEV;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_err(dev, "Found HC with no IRQ.\n");
return -ENODEV;
}
irq = res->start;
hcd = usb_create_hcd(driver, dev, dev_name(dev));
if (!hcd)
return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(dev, "Found HC with no register addr.\n");
retval = -ENODEV;
goto err1;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = resource_size(res);
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(dev, "controller already in use\n");
retval = -EBUSY;
goto err1;
}
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
if (!hcd->regs) {
dev_dbg(dev, "error mapping memory\n");
retval = -EFAULT;
goto err2;
}
ohci_hcd_init(hcd_to_ohci(hcd));
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (retval == 0)
return retval;
iounmap(hcd->regs);
err2:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err1:
usb_put_hcd(hcd);
return retval;
}
static int cns3xxx_ohci_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
/*
* EHCI and OHCI share the same clock and power,
* resetting twice would cause the 1st controller been reset.
* Therefore only do power up at the first up device, and
* power down at the last down device.
*/
if (atomic_dec_return(&usb_pwr_ref) == 0)
cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
usb_put_hcd(hcd);
platform_set_drvdata(pdev, NULL);
return 0;
}
MODULE_ALIAS("platform:cns3xxx-ohci");
static struct platform_driver ohci_hcd_cns3xxx_driver = {
.probe = cns3xxx_ohci_probe,
.remove = cns3xxx_ohci_remove,
.driver = {
.name = "cns3xxx-ohci",
},
};

5
drivers/usb/host/ohci-hcd.c
View File

@ -1196,11 +1196,6 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ohci_hcd_tilegx_driver
#endif
#ifdef CONFIG_USB_CNS3XXX_OHCI
#include "ohci-cns3xxx.c"
#define PLATFORM_DRIVER ohci_hcd_cns3xxx_driver
#endif
#ifdef CONFIG_CPU_XLR
#include "ohci-xls.c"
#define PLATFORM_DRIVER ohci_xls_driver