2 * EHCI HCD for Netlogic XLS processors.
4 * (C) Copyright 2011 Netlogic Microsystems Inc.
6 * Based on various ehci-*.c drivers
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file COPYING in the main directory of this archive for
13 #include <linux/platform_device.h>
15 static int ehci_xls_setup(struct usb_hcd *hcd)
17 struct ehci_hcd *ehci = hcd_to_ehci(hcd);
19 ehci->caps = hcd->regs;
21 return ehci_setup(hcd);
24 int ehci_xls_probe_internal(const struct hc_driver *driver,
25 struct platform_device *pdev)
31 /* Get our IRQ from an earlier registered Platform Resource */
32 irq = platform_get_irq(pdev, 0);
34 dev_err(&pdev->dev, "Found HC with no IRQ. Check %s setup!\n",
35 dev_name(&pdev->dev));
39 /* Get our Memory Handle */
40 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
42 dev_err(&pdev->dev, "Error: MMIO Handle %s setup!\n",
43 dev_name(&pdev->dev));
46 hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
52 hcd->rsrc_start = res->start;
53 hcd->rsrc_len = resource_size(res);
55 if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
56 driver->description)) {
57 dev_dbg(&pdev->dev, "controller already in use\n");
61 hcd->regs = ioremap_nocache(hcd->rsrc_start, hcd->rsrc_len);
63 if (hcd->regs == NULL) {
64 dev_dbg(&pdev->dev, "error mapping memory\n");
69 retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
77 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
81 dev_err(&pdev->dev, "init %s fail, %d\n", dev_name(&pdev->dev),
86 static struct hc_driver ehci_xls_hc_driver = {
87 .description = hcd_name,
88 .product_desc = "XLS EHCI Host Controller",
89 .hcd_priv_size = sizeof(struct ehci_hcd),
91 .flags = HCD_USB2 | HCD_MEMORY,
92 .reset = ehci_xls_setup,
95 .shutdown = ehci_shutdown,
97 .urb_enqueue = ehci_urb_enqueue,
98 .urb_dequeue = ehci_urb_dequeue,
99 .endpoint_disable = ehci_endpoint_disable,
100 .endpoint_reset = ehci_endpoint_reset,
102 .get_frame_number = ehci_get_frame,
104 .hub_status_data = ehci_hub_status_data,
105 .hub_control = ehci_hub_control,
106 .bus_suspend = ehci_bus_suspend,
107 .bus_resume = ehci_bus_resume,
108 .relinquish_port = ehci_relinquish_port,
109 .port_handed_over = ehci_port_handed_over,
111 .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
114 static int ehci_xls_probe(struct platform_device *pdev)
119 return ehci_xls_probe_internal(&ehci_xls_hc_driver, pdev);
122 static int ehci_xls_remove(struct platform_device *pdev)
124 struct usb_hcd *hcd = platform_get_drvdata(pdev);
128 release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
133 MODULE_ALIAS("ehci-xls");
135 static struct platform_driver ehci_xls_driver = {
136 .probe = ehci_xls_probe,
137 .remove = ehci_xls_remove,
138 .shutdown = usb_hcd_platform_shutdown,