linux-imx

// SPDX-License-Identifier: GPL-2.0+

/*

 * Driver for Aeroflex Gaisler GRLIB GRUSBHC EHCI host controller

 *

 * GRUSBHC is typically found on LEON/GRLIB SoCs

 *

 * (c) Jan Andersson <jan@gaisler.com>

 *

 * Based on ehci-ppc-of.c which is:

 * (c) Valentine Barshak <vbarshak@ru.mvista.com>

 * and in turn based on "ehci-ppc-soc.c" by Stefan Roese <sr@denx.de>

 * and "ohci-ppc-of.c" by Sylvain Munaut <tnt@246tNt.com>

 */

​

#include <linux/err.h>

#include <linux/signal.h>

​

#include <linux/of_irq.h>

#include <linux/of_address.h>

#include <linux/of_platform.h>

​

#define GRUSBHC_HCIVERSION 0x0100 /* Known value of cap. reg. HCIVERSION */

​

static const struct hc_driver ehci_grlib_hc_driver = {

    .description        = hcd_name,

    .product_desc       = "GRLIB GRUSBHC EHCI",

    .hcd_priv_size      = sizeof(struct ehci_hcd),

​

    /*

     * generic hardware linkage

     */

    .irq            = ehci_irq,

    .flags          = HCD_MEMORY | HCD_USB2 | HCD_BH,

​

    /*

     * 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,