/*
* Bus Glue for Atheros AR71xx built-in EHCI controller.
*
- * Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
*
* Parts of this file are based on Atheros' 2.6.15 BSP
#include <linux/platform_device.h>
#include <linux/delay.h>
+#include <asm/mach-ar71xx/platform.h>
+
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->has_synopsys_hc_bug = 1;
+
+ 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,
struct platform_device *pdev)
{
struct usb_hcd *hcd;
- struct ehci_hcd *ehci;
struct resource *res;
int irq;
int ret;
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res) {
dev_dbg(&pdev->dev, "no IRQ specified for %s\n",
- pdev->dev.bus_id);
+ dev_name(&pdev->dev));
return -ENODEV;
}
irq = res->start;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (!res) {
dev_dbg(&pdev->dev, "no base address specified for %s\n",
- pdev->dev.bus_id);
+ dev_name(&pdev->dev));
return -ENODEV;
}
- hcd = usb_create_hcd(driver, &pdev->dev, pdev->dev.bus_id);
+ hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd)
return -ENOMEM;
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;
return 0;
- err_iounmap:
+err_iounmap:
iounmap(hcd->regs);
- err_release_region:
+err_release_region:
release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
- err_put_hcd:
+err_put_hcd:
usb_put_hcd(hcd);
return ret;
}
.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,
+
+ .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,
+#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,
+
+ .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+};
+
+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,
- /*
- * managing i/o requests and associated device resources
- */
.urb_enqueue = ehci_urb_enqueue,
.urb_dequeue = ehci_urb_dequeue,
.endpoint_disable = ehci_endpoint_disable,
+ .endpoint_reset = ehci_endpoint_reset,
- /*
- * 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,
+
+ .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
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",
+ dev_name(&pdev->dev));
+ 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)
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