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EHCI driver: add AR913x support 

SVN-Revision: 13519
lede-17.01
Gabor Juhos 2008-12-04 18:16:05 +00:00
parent d9d111066a
commit 05ea87a13f
1 changed files with 90 additions and 30 deletions
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120
target/linux/ar71xx/files/drivers/usb/host/ehci-ar71xx.c
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@ -19,11 +19,51 @@
extern int usb_disabled(void);
static void ehci_ar71xx_setup(void)
static int ehci_ar71xx_init(struct usb_hcd *hcd)
{
/*
* TODO: implement
*/
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int ret;
ehci->caps = hcd->regs;
ehci->regs = hcd->regs +
HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
ehci->sbrn = 0x20;
ehci_reset(ehci);
ret = ehci_init(hcd);
if (ret)
return ret;
ehci_port_power(ehci, 0);
return 0;
}
static int ehci_ar91xx_init(struct usb_hcd *hcd)
{
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
int ret;
ehci->caps = hcd->regs + 0x100;
ehci->regs = hcd->regs + 0x100 +
HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
hcd->has_tt = 1;
ehci->sbrn = 0x20;
ehci_reset(ehci);
ret = ehci_init(hcd);
if (ret)
return ret;
ehci_port_power(ehci, 0);
return 0;
}
static int ehci_ar71xx_probe(const struct hc_driver *driver,
@ -31,7 +71,6 @@ static int ehci_ar71xx_probe(const struct hc_driver *driver,
struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct ehci_hcd *ehci;
struct resource *res;
int irq;
int ret;
@ -71,14 +110,6 @@ static int ehci_ar71xx_probe(const struct hc_driver *driver,
goto err_release_region;
}
ehci = hcd_to_ehci(hcd);
ehci->caps = hcd->regs;
ehci->regs = hcd->regs +
HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
ehci_ar71xx_setup();
ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
if (ret)
goto err_iounmap;
@ -109,51 +140,80 @@ static const struct hc_driver ehci_ar71xx_hc_driver = {
.product_desc = "Atheros AR71xx built-in EHCI controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
/*
* generic hardware linkage
*/
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
/*
* basic lifecycle operations
*/
.reset = ehci_init,
.reset = ehci_ar71xx_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
.hub_suspend = ehci_hub_suspend,
.hub_resume = ehci_hub_resume,
#endif
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
};
static const struct hc_driver ehci_ar91xx_hc_driver = {
.description = hcd_name,
.product_desc = "Atheros AR91xx built-in EHCI controller",
.hcd_priv_size = sizeof(struct ehci_hcd),
.irq = ehci_irq,
.flags = HCD_MEMORY | HCD_USB2,
.reset = ehci_ar91xx_init,
.start = ehci_run,
.stop = ehci_stop,
.shutdown = ehci_shutdown,
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
.get_frame_number = ehci_get_frame,
.hub_status_data = ehci_hub_status_data,
.hub_control = ehci_hub_control,
#ifdef CONFIG_PM
.hub_suspend = ehci_hub_suspend,
.hub_resume = ehci_hub_resume,
#endif
.relinquish_port = ehci_relinquish_port,
.port_handed_over = ehci_port_handed_over,
};
static int ehci_ar71xx_driver_probe(struct platform_device *pdev)
{
struct ar71xx_ehci_platform_data *pdata;
struct usb_hcd *hcd = NULL;
int ret;
if (usb_disabled())
return -ENODEV;
return ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
pdata = pdev->dev.platform_data;
if (!pdata) {
dev_err(&pdev->dev, "no platform data specified for %s\n",
pdev->dev.bus_id);
return -ENODEV;
}
if (pdata->is_ar91xx)
ret = ehci_ar71xx_probe(&ehci_ar91xx_hc_driver, &hcd, pdev);
else
ret = ehci_ar71xx_probe(&ehci_ar71xx_hc_driver, &hcd, pdev);
return ret;
}
static int ehci_ar71xx_driver_remove(struct platform_device *pdev)