diff options
Diffstat (limited to 'drivers/usb/host/ehci-w90x900.c')
| -rw-r--r-- | drivers/usb/host/ehci-w90x900.c | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c deleted file mode 100644 index 59e0e24c753f..000000000000 --- a/drivers/usb/host/ehci-w90x900.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * 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> - -/* enable phy0 and phy1 for w90p910 */ -#define ENPHY (0x01<<8) -#define PHY0_CTR (0xA4) -#define PHY1_CTR (0xA8) - -static int 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 = resource_size(res); - - 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, 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); - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - goto err4; - - retval = usb_add_hcd(hcd, irq, IRQF_SHARED); - if (retval != 0) - goto err4; - - 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_setup, - .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 - .bus_suspend = ehci_bus_suspend, - .bus_resume = ehci_bus_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_w90x900_probe(struct platform_device *pdev) -{ - if (usb_disabled()) - return -ENODEV; - - return usb_w90x900_probe(&ehci_w90x900_hc_driver, pdev); -} - -static int 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 = 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"); |