USB: Add nuvoton Ehci driver for w90p910 platform
Add ehci support for w90p910 platform. Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Родитель
b95cd7ec3e
Коммит
586dfc8caf
|
@ -39,6 +39,7 @@ config USB_ARCH_HAS_OHCI
|
|||
default y if ARCH_AT91
|
||||
default y if ARCH_PNX4008 && I2C
|
||||
default y if MFD_TC6393XB
|
||||
default y if ARCH_W90X900
|
||||
# PPC:
|
||||
default y if STB03xxx
|
||||
default y if PPC_MPC52xx
|
||||
|
@ -58,6 +59,7 @@ config USB_ARCH_HAS_EHCI
|
|||
default y if PPC_83xx
|
||||
default y if SOC_AU1200
|
||||
default y if ARCH_IXP4XX
|
||||
default y if ARCH_W90X900
|
||||
default PCI
|
||||
|
||||
# ARM SA1111 chips have a non-PCI based "OHCI-compatible" USB host interface.
|
||||
|
|
|
@ -113,6 +113,12 @@ config USB_EHCI_HCD_PPC_OF
|
|||
Enables support for the USB controller present on the PowerPC
|
||||
OpenFirmware platform bus.
|
||||
|
||||
config USB_W90X900_EHCI
|
||||
bool "W90X900(W90P910) EHCI support"
|
||||
depends on USB_EHCI_HCD && ARCH_W90X900
|
||||
---help---
|
||||
Enables support for the W90X900 USB controller
|
||||
|
||||
config USB_OXU210HP_HCD
|
||||
tristate "OXU210HP HCD support"
|
||||
depends on USB
|
||||
|
|
|
@ -1117,6 +1117,11 @@ MODULE_LICENSE ("GPL");
|
|||
#define PLATFORM_DRIVER ixp4xx_ehci_driver
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_USB_W90X900_EHCI
|
||||
#include "ehci-w90x900.c"
|
||||
#define PLATFORM_DRIVER ehci_hcd_w90x900_driver
|
||||
#endif
|
||||
|
||||
#if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
|
||||
!defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER)
|
||||
#error "missing bus glue for ehci-hcd"
|
||||
|
|
|
@ -0,0 +1,181 @@
|
|||
/*
|
||||
* linux/driver/usb/host/ehci-w90x900.c
|
||||
*
|
||||
* Copyright (c) 2008 Nuvoton technology corporation.
|
||||
*
|
||||
* Wan ZongShun <mcuos.com@gmail.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;version 2 of the License.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
/*ebable phy0 and phy1 for w90p910*/
|
||||
#define ENPHY (0x01<<8)
|
||||
#define PHY0_CTR (0xA4)
|
||||
#define PHY1_CTR (0xA8)
|
||||
|
||||
static int __devinit usb_w90x900_probe(const struct hc_driver *driver,
|
||||
struct platform_device *pdev)
|
||||
{
|
||||
struct usb_hcd *hcd;
|
||||
struct ehci_hcd *ehci;
|
||||
struct resource *res;
|
||||
int retval = 0, irq;
|
||||
unsigned long val;
|
||||
|
||||
|
||||
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (!res) {
|
||||
retval = -ENXIO;
|
||||
goto err1;
|
||||
}
|
||||
|
||||
hcd = usb_create_hcd(driver, &pdev->dev, "w90x900 EHCI");
|
||||
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, hcd_name)) {
|
||||
retval = -EBUSY;
|
||||
goto err2;
|
||||
}
|
||||
|
||||
hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
|
||||
if (hcd->regs == NULL) {
|
||||
retval = -EFAULT;
|
||||
goto err3;
|
||||
}
|
||||
|
||||
ehci = hcd_to_ehci(hcd);
|
||||
ehci->caps = hcd->regs;
|
||||
ehci->regs = hcd->regs +
|
||||
HC_LENGTH(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);
|
||||
|
||||
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
|
||||
ehci->sbrn = 0x20;
|
||||
|
||||
irq = platform_get_irq(pdev, 0);
|
||||
if (irq < 0)
|
||||
goto err4;
|
||||
|
||||
retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
|
||||
if (retval != 0)
|
||||
goto err4;
|
||||
|
||||
ehci_writel(ehci, 1, &ehci->regs->configured_flag);
|
||||
|
||||
return retval;
|
||||
err4:
|
||||
iounmap(hcd->regs);
|
||||
err3:
|
||||
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
||||
err2:
|
||||
usb_put_hcd(hcd);
|
||||
err1:
|
||||
return retval;
|
||||
}
|
||||
|
||||
static
|
||||
void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev)
|
||||
{
|
||||
usb_remove_hcd(hcd);
|
||||
iounmap(hcd->regs);
|
||||
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
|
||||
usb_put_hcd(hcd);
|
||||
}
|
||||
|
||||
static const struct hc_driver ehci_w90x900_hc_driver = {
|
||||
.description = hcd_name,
|
||||
.product_desc = "Nuvoton w90x900 EHCI Host Controller",
|
||||
.hcd_priv_size = sizeof(struct ehci_hcd),
|
||||
|
||||
/*
|
||||
* generic hardware linkage
|
||||
*/
|
||||
.irq = ehci_irq,
|
||||
.flags = HCD_USB2|HCD_MEMORY,
|
||||
|
||||
/*
|
||||
* basic lifecycle operations
|
||||
*/
|
||||
.reset = ehci_init,
|
||||
.start = ehci_run,
|
||||
|
||||
.stop = ehci_stop,
|
||||
.shutdown = ehci_shutdown,
|
||||
|
||||
/*
|
||||
* managing i/o requests and associated device resources
|
||||
*/
|
||||
.urb_enqueue = ehci_urb_enqueue,
|
||||
.urb_dequeue = ehci_urb_dequeue,
|
||||
.endpoint_disable = ehci_endpoint_disable,
|
||||
|
||||
/*
|
||||
* scheduling support
|
||||
*/
|
||||
.get_frame_number = ehci_get_frame,
|
||||
|
||||
/*
|
||||
* root hub support
|
||||
*/
|
||||
.hub_status_data = ehci_hub_status_data,
|
||||
.hub_control = ehci_hub_control,
|
||||
#ifdef CONFIG_PM
|
||||
.bus_suspend = ehci_bus_suspend,
|
||||
.bus_resume = ehci_bus_resume,
|
||||
#endif
|
||||
.relinquish_port = ehci_relinquish_port,
|
||||
.port_handed_over = ehci_port_handed_over,
|
||||
};
|
||||
|
||||
static int __devinit ehci_w90x900_probe(struct platform_device *pdev)
|
||||
{
|
||||
if (usb_disabled())
|
||||
return -ENODEV;
|
||||
|
||||
return usb_w90x900_probe(&ehci_w90x900_hc_driver, pdev);
|
||||
}
|
||||
|
||||
static int __devexit ehci_w90x900_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
||||
|
||||
usb_w90x900_remove(hcd, pdev);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver ehci_hcd_w90x900_driver = {
|
||||
.probe = ehci_w90x900_probe,
|
||||
.remove = __devexit_p(ehci_w90x900_remove),
|
||||
.driver = {
|
||||
.name = "w90x900-ehci",
|
||||
.owner = THIS_MODULE,
|
||||
},
|
||||
};
|
||||
|
||||
MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
|
||||
MODULE_DESCRIPTION("w90p910 usb ehci driver!");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_ALIAS("platform:w90p910-ehci");
|
Загрузка…
Ссылка в новой задаче