+++ /dev/null
-/*
- * Bus Glue for Atheros AR71xx built-in EHCI controller.
- *
- * 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
- * Copyright (C) 2007 Atheros Communications, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-
-#include <asm/mach-ar71xx/platform.h>
-
-extern int usb_disabled(void);
-
-static int ehci_ar71xx_init(struct usb_hcd *hcd)
-{
- 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 usb_hcd **hcd_out,
- struct platform_device *pdev)
-{
- struct usb_hcd *hcd;
- 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",
- 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",
- dev_name(&pdev->dev));
- return -ENODEV;
- }
-
- hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
- if (!hcd)
- return -ENOMEM;
-
- 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)) {
- dev_dbg(&pdev->dev, "controller already in use\n");
- ret = -EBUSY;
- goto err_put_hcd;
- }
-
- hcd->regs = ioremap(hcd->rsrc_start, hcd->rsrc_len);
- if (!hcd->regs) {
- dev_dbg(&pdev->dev, "error mapping memory\n");
- ret = -EFAULT;
- goto err_release_region;
- }
-
- ret = usb_add_hcd(hcd, irq, IRQF_DISABLED | IRQF_SHARED);
- if (ret)
- goto err_iounmap;
-
- return 0;
-
-err_iounmap:
- iounmap(hcd->regs);
-
-err_release_region:
- release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
-err_put_hcd:
- usb_put_hcd(hcd);
- return ret;
-}
-
-static void ehci_ar71xx_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_ar71xx_hc_driver = {
- .description = hcd_name,
- .product_desc = "Atheros AR71xx built-in EHCI controller",
- .hcd_priv_size = sizeof(struct ehci_hcd),
-
- .irq = ehci_irq,
- .flags = HCD_MEMORY | HCD_USB2,
-
- .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,
-
- .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 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;
-
- 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)
-{
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
- ehci_ar71xx_remove(hcd, pdev);
- return 0;
-}
-
-MODULE_ALIAS("platform:ar71xx-ehci");
-
-static struct platform_driver ehci_ar71xx_driver = {
- .probe = ehci_ar71xx_driver_probe,
- .remove = ehci_ar71xx_driver_remove,
- .driver = {
- .name = "ar71xx-ehci",
- }
-};
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