diff options
Diffstat (limited to 'target/linux/ramips/files/drivers/usb/host/ehci-rt3883.c')
| -rw-r--r-- | target/linux/ramips/files/drivers/usb/host/ehci-rt3883.c | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/target/linux/ramips/files/drivers/usb/host/ehci-rt3883.c b/target/linux/ramips/files/drivers/usb/host/ehci-rt3883.c deleted file mode 100644 index a64cac7f3..000000000 --- a/target/linux/ramips/files/drivers/usb/host/ehci-rt3883.c +++ /dev/null @@ -1,162 +0,0 @@ -/* - * Bus Glue for the built-in EHCI controller of the Ralink RT3662/RT3883 SoCs - * - * Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org> - * - * Parts of this file are based on Ralink's 2.6.21 BSP - * - * 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 <asm/mach-ralink/rt3883.h> -#include <asm/mach-ralink/rt3883_ehci_platform.h> - -static int ehci_rt3883_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, ehci_readl(ehci, &ehci->caps->hc_capbase)); - dbg_hcs_params(ehci, "reset"); - dbg_hcc_params(ehci, "reset"); - - 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 const struct hc_driver ehci_rt3883_hc_driver = { - .description = hcd_name, - .product_desc = "Ralink RT3883 built-in EHCI controller", - .hcd_priv_size = sizeof(struct ehci_hcd), - .irq = ehci_irq, - .flags = HCD_MEMORY | HCD_USB2, - - .reset = ehci_rt3883_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, - .relinquish_port = ehci_relinquish_port, - .port_handed_over = ehci_port_handed_over, - - .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, -}; - -static int ehci_rt3883_probe(struct platform_device *pdev) -{ - struct rt3883_ehci_platform_data *pdata; - struct usb_hcd *hcd; - struct resource *res; - int irq; - int ret; - - if (usb_disabled()) - return -ENODEV; - - 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(&ehci_rt3883_hc_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; - } - - pdata = pdev->dev.platform_data; - if (pdata && pdata->start_hw) - pdata->start_hw(); - - ret = usb_add_hcd(hcd, irq, 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 int ehci_rt3883_remove(struct platform_device *pdev) -{ - struct usb_hcd *hcd = platform_get_drvdata(pdev); - struct rt3883_ehci_platform_data *pdata; - - usb_remove_hcd(hcd); - iounmap(hcd->regs); - release_mem_region(hcd->rsrc_start, hcd->rsrc_len); - usb_put_hcd(hcd); - - pdata = pdev->dev.platform_data; - if (pdata && pdata->stop_hw) - pdata->stop_hw(); - - return 0; -} - -static struct platform_driver ehci_rt3883_driver = { - .probe = ehci_rt3883_probe, - .remove = ehci_rt3883_remove, - .driver = { - .owner = THIS_MODULE, - .name = "rt3883-ehci", - } -}; - -MODULE_ALIAS("platform:rt3883-ehci"); |