|
|
@@ -1,155 +0,0 @@
|
|
|
-/*
|
|
|
- * Copyright 2008 Cavium Networks
|
|
|
- *
|
|
|
- * This file 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/atomic.h>
|
|
|
-#include <mach/cns3xxx.h>
|
|
|
-#include <mach/pm.h>
|
|
|
-
|
|
|
-static int cns3xxx_ehci_init(struct usb_hcd *hcd)
|
|
|
-{
|
|
|
- struct ehci_hcd *ehci = hcd_to_ehci(hcd);
|
|
|
- int retval;
|
|
|
-
|
|
|
- /*
|
|
|
- * EHCI and OHCI share the same clock and power,
|
|
|
- * resetting twice would cause the 1st controller been reset.
|
|
|
- * Therefore only do power up at the first up device, and
|
|
|
- * power down at the last down device.
|
|
|
- *
|
|
|
- * Set USB AHB INCR length to 16
|
|
|
- */
|
|
|
- if (atomic_inc_return(&usb_pwr_ref) == 1) {
|
|
|
- cns3xxx_pwr_power_up(1 << PM_PLL_HM_PD_CTRL_REG_OFFSET_PLL_USB);
|
|
|
- cns3xxx_pwr_clk_en(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
|
|
|
- cns3xxx_pwr_soft_rst(1 << PM_SOFT_RST_REG_OFFST_USB_HOST);
|
|
|
- __raw_writel((__raw_readl(MISC_CHIP_CONFIG_REG) | (0X2 << 24)),
|
|
|
- MISC_CHIP_CONFIG_REG);
|
|
|
- }
|
|
|
-
|
|
|
- ehci->caps = hcd->regs;
|
|
|
-
|
|
|
- hcd->has_tt = 0;
|
|
|
-
|
|
|
- retval = ehci_setup(hcd);
|
|
|
- if (retval)
|
|
|
- return retval;
|
|
|
-
|
|
|
- ehci_port_power(ehci, 0);
|
|
|
-
|
|
|
- return retval;
|
|
|
-}
|
|
|
-
|
|
|
-static const struct hc_driver cns3xxx_ehci_hc_driver = {
|
|
|
- .description = hcd_name,
|
|
|
- .product_desc = "CNS3XXX EHCI Host Controller",
|
|
|
- .hcd_priv_size = sizeof(struct ehci_hcd),
|
|
|
- .irq = ehci_irq,
|
|
|
- .flags = HCD_MEMORY | HCD_USB2,
|
|
|
- .reset = cns3xxx_ehci_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
|
|
|
- .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 cns3xxx_ehci_probe(struct platform_device *pdev)
|
|
|
-{
|
|
|
- struct device *dev = &pdev->dev;
|
|
|
- struct usb_hcd *hcd;
|
|
|
- const struct hc_driver *driver = &cns3xxx_ehci_hc_driver;
|
|
|
- struct resource *res;
|
|
|
- int irq;
|
|
|
- int retval;
|
|
|
-
|
|
|
- if (usb_disabled())
|
|
|
- return -ENODEV;
|
|
|
-
|
|
|
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
|
|
|
- if (!res) {
|
|
|
- dev_err(dev, "Found HC with no IRQ.\n");
|
|
|
- return -ENODEV;
|
|
|
- }
|
|
|
- irq = res->start;
|
|
|
-
|
|
|
- hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
|
|
|
- if (!hcd)
|
|
|
- return -ENOMEM;
|
|
|
-
|
|
|
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
|
- if (!res) {
|
|
|
- dev_err(dev, "Found HC with no register addr.\n");
|
|
|
- retval = -ENODEV;
|
|
|
- goto err1;
|
|
|
- }
|
|
|
-
|
|
|
- hcd->rsrc_start = res->start;
|
|
|
- hcd->rsrc_len = resource_size(res);
|
|
|
-
|
|
|
- hcd->regs = devm_request_and_ioremap(&pdev->dev, res);
|
|
|
- if (hcd->regs == NULL) {
|
|
|
- dev_dbg(dev, "error mapping memory\n");
|
|
|
- retval = -EFAULT;
|
|
|
- goto err1;
|
|
|
- }
|
|
|
-
|
|
|
- retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
|
|
|
- if (retval == 0)
|
|
|
- return retval;
|
|
|
-
|
|
|
-err1:
|
|
|
- usb_put_hcd(hcd);
|
|
|
-
|
|
|
- return retval;
|
|
|
-}
|
|
|
-
|
|
|
-static int cns3xxx_ehci_remove(struct platform_device *pdev)
|
|
|
-{
|
|
|
- struct usb_hcd *hcd = platform_get_drvdata(pdev);
|
|
|
-
|
|
|
- usb_remove_hcd(hcd);
|
|
|
-
|
|
|
- /*
|
|
|
- * EHCI and OHCI share the same clock and power,
|
|
|
- * resetting twice would cause the 1st controller been reset.
|
|
|
- * Therefore only do power up at the first up device, and
|
|
|
- * power down at the last down device.
|
|
|
- */
|
|
|
- if (atomic_dec_return(&usb_pwr_ref) == 0)
|
|
|
- cns3xxx_pwr_clk_dis(1 << PM_CLK_GATE_REG_OFFSET_USB_HOST);
|
|
|
-
|
|
|
- usb_put_hcd(hcd);
|
|
|
-
|
|
|
- platform_set_drvdata(pdev, NULL);
|
|
|
-
|
|
|
- return 0;
|
|
|
-}
|
|
|
-
|
|
|
-MODULE_ALIAS("platform:cns3xxx-ehci");
|
|
|
-
|
|
|
-static struct platform_driver cns3xxx_ehci_driver = {
|
|
|
- .probe = cns3xxx_ehci_probe,
|
|
|
- .remove = cns3xxx_ehci_remove,
|
|
|
- .driver = {
|
|
|
- .name = "cns3xxx-ehci",
|
|
|
- },
|
|
|
-};
|
Florian Fainelli