Commit 23106343 authored by Jayachandran C's avatar Jayachandran C Committed by Greg Kroah-Hartman

usb: OHCI/EHCI support for Netlogic XLS processor.

Add supprt for on-chip USB controller for Netlogic XLS MIPS64
SoC processor family.
Changes are:
 - update ehci-hcd.c and ohci-hcd.c to add XLS hcds
 - add ehci-xls.c: EHCI support for Netlogic XLS.
 - add ohci-xls.c: OHCI support for Netlogic XLS.
Signed-off-by: default avatarJayachandran C <jayachandranc@netlogicmicro.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 3abd7f68
...@@ -1296,6 +1296,11 @@ MODULE_LICENSE ("GPL"); ...@@ -1296,6 +1296,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ehci_pxa168_driver #define PLATFORM_DRIVER ehci_pxa168_driver
#endif #endif
#ifdef CONFIG_NLM_XLR
#include "ehci-xls.c"
#define PLATFORM_DRIVER ehci_xls_driver
#endif
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
!defined(XILINX_OF_PLATFORM_DRIVER) !defined(XILINX_OF_PLATFORM_DRIVER)
......
/*
* EHCI HCD for Netlogic XLS processors.
*
* (C) Copyright 2011 Netlogic Microsystems Inc.
*
* Based on various ehci-*.c drivers
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/platform_device.h>
static int ehci_xls_setup(struct usb_hcd *hcd)
{
int retval;
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
ehci->caps = hcd->regs;
ehci->regs = hcd->regs +
HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
dbg_hcs_params(ehci, "reset");
dbg_hcc_params(ehci, "reset");
/* cache this readonly data; minimize chip reads */
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
retval = ehci_halt(ehci);
if (retval)
return retval;
/* data structure init */
retval = ehci_init(hcd);
if (retval)
return retval;
ehci_reset(ehci);
return retval;
}
int ehci_xls_probe_internal(const struct hc_driver *driver,
struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct resource *res;
int retval, irq;
/* Get our IRQ from an earlier registered Platform Resource */
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n",
dev_name(&pdev->dev));
return -ENODEV;
}
/* Get our Memory Handle */
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&pdev->dev, "Error: MMIO Handle %s setup!\n",
dev_name(&pdev->dev));
return -ENODEV;
}
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd) {
retval = -ENOMEM;
goto err1;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(&pdev->dev, "controller already in use\n");
retval = -EBUSY;
goto err2;
}
hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
dev_dbg(&pdev->dev, "error mapping memory\n");
retval = -EFAULT;
goto err3;
}
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
if (retval != 0)
goto err4;
return retval;
err4:
iounmap(hcd->regs);
err3:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err2:
usb_put_hcd(hcd);
err1:
dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev),
retval);
return retval;
}
static struct hc_driver ehci_xls_hc_driver = {
.description = hcd_name,
.product_desc = "XLS EHCI Host Controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
.irq = ehci_irq,
.flags = HCD_USB2 | HCD_MEMORY,
.reset = ehci_xls_setup,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.endpoint_reset = ehci_endpoint_reset,
.get_frame_number = ehci_get_frame,
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
.bus_suspend = ehci_bus_suspend,
.bus_resume = ehci_bus_resume,
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
static int ehci_xls_probe(struct platform_device *pdev)
{
if (usb_disabled())
return -ENODEV;
return ehci_xls_probe_internal(&ehci_xls_hc_driver, pdev);
}
static int ehci_xls_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);
usb_put_hcd(hcd);
return 0;
}
MODULE_ALIAS("ehci-xls");
static struct platform_driver ehci_xls_driver = {
.probe = ehci_xls_probe,
.remove = ehci_xls_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "ehci-xls",
},
};
...@@ -1114,6 +1114,11 @@ MODULE_LICENSE ("GPL"); ...@@ -1114,6 +1114,11 @@ MODULE_LICENSE ("GPL");
#define PLATFORM_DRIVER ohci_hcd_ath79_driver #define PLATFORM_DRIVER ohci_hcd_ath79_driver
#endif #endif
#ifdef CONFIG_NLM_XLR
#include "ohci-xls.c"
#define PLATFORM_DRIVER ohci_xls_driver
#endif
#if !defined(PCI_DRIVER) && \ #if !defined(PCI_DRIVER) && \
!defined(PLATFORM_DRIVER) && \ !defined(PLATFORM_DRIVER) && \
!defined(OMAP1_PLATFORM_DRIVER) && \ !defined(OMAP1_PLATFORM_DRIVER) && \
......
/*
* OHCI HCD for Netlogic XLS processors.
*
* (C) Copyright 2011 Netlogic Microsystems Inc.
*
* Based on ohci-au1xxx.c, and other Linux OHCI drivers.
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file COPYING in the main directory of this archive for
* more details.
*/
#include <linux/platform_device.h>
#include <linux/signal.h>
static int ohci_xls_probe_internal(const struct hc_driver *driver,
struct platform_device *dev)
{
struct resource *res;
struct usb_hcd *hcd;
int retval, irq;
/* Get our IRQ from an earlier registered Platform Resource */
irq = platform_get_irq(dev, 0);
if (irq < 0) {
dev_err(&dev->dev, "Found HC with no IRQ\n");
return -ENODEV;
}
/* Get our Memory Handle */
res = platform_get_resource(dev, IORESOURCE_MEM, 0);
if (!res) {
dev_err(&dev->dev, "MMIO Handle incorrect!\n");
return -ENODEV;
}
hcd = usb_create_hcd(driver, &dev->dev, "XLS");
if (!hcd) {
retval = -ENOMEM;
goto err1;
}
hcd->rsrc_start = res->start;
hcd->rsrc_len = res->end - res->start + 1;
if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
driver->description)) {
dev_dbg(&dev->dev, "Controller already in use\n");
retval = -EBUSY;
goto err2;
}
hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
if (hcd->regs == NULL) {
dev_dbg(&dev->dev, "error mapping memory\n");
retval = -EFAULT;
goto err3;
}
retval = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (retval != 0)
goto err4;
return retval;
err4:
iounmap(hcd->regs);
err3:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
err2:
usb_put_hcd(hcd);
err1:
dev_err(&dev->dev, "init fail, %d\n", retval);
return retval;
}
static int ohci_xls_reset(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci = hcd_to_ohci(hcd);
ohci_hcd_init(ohci);
return ohci_init(ohci);
}
static int __devinit ohci_xls_start(struct usb_hcd *hcd)
{
struct ohci_hcd *ohci;
int ret;
ohci = hcd_to_ohci(hcd);
ret = ohci_run(ohci);
if (ret < 0) {
err("can't start %s", hcd->self.bus_name);
ohci_stop(hcd);
return ret;
}
return 0;
}
static struct hc_driver ohci_xls_hc_driver = {
.description = hcd_name,
.product_desc = "XLS OHCI Host Controller",
.hcd_priv_size = sizeof(struct ohci_hcd),
.irq = ohci_irq,
.flags = HCD_MEMORY | HCD_USB11,
.reset = ohci_xls_reset,
.start = ohci_xls_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 ohci_xls_probe(struct platform_device *dev)
{
int ret;
pr_debug("In ohci_xls_probe");
if (usb_disabled())
return -ENODEV;
ret = ohci_xls_probe_internal(&ohci_xls_hc_driver, dev);
return ret;
}
static int ohci_xls_remove(struct platform_device *dev)
{
struct usb_hcd *hcd = platform_get_drvdata(dev);
usb_remove_hcd(hcd);
iounmap(hcd->regs);
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
usb_put_hcd(hcd);
return 0;
}
static struct platform_driver ohci_xls_driver = {
.probe = ohci_xls_probe,
.remove = ohci_xls_remove,
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "ohci-xls-0",
.owner = THIS_MODULE,
},
};
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