xref: /openbmc/u-boot/drivers/usb/host/ehci-tegra.c (revision bfc93fb4)
1  /*
2   * Copyright (c) 2009 NVIDIA Corporation
3   *
4   * See file CREDITS for list of people who contributed to this
5   * project.
6   *
7   * This program is free software; you can redistribute it and/or
8   * modify it under the terms of the GNU General Public License as
9   * published by the Free Software Foundation; either version 2 of
10   * the License, or (at your option) any later version.
11   *
12   * This program is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15   * GNU General Public License for more details.
16   *
17   * You should have received a copy of the GNU General Public License
18   * along with this program; if not, write to the Free Software
19   * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
20   * MA 02111-1307 USA
21   */
22  
23  #include <common.h>
24  #include <usb.h>
25  
26  #include "ehci.h"
27  #include "ehci-core.h"
28  
29  #include <asm/errno.h>
30  #include <asm/arch/usb.h>
31  
32  
33  /*
34   * Create the appropriate control structures to manage
35   * a new EHCI host controller.
36   */
37  int ehci_hcd_init(void)
38  {
39  	u32 our_hccr, our_hcor;
40  
41  	/*
42  	 * Select the first port, as we don't have a way of selecting others
43  	 * yet
44  	 */
45  	if (tegrausb_start_port(0, &our_hccr, &our_hcor))
46  		return -1;
47  
48  	hccr = (struct ehci_hccr *)our_hccr;
49  	hcor = (struct ehci_hcor *)our_hcor;
50  
51  	return 0;
52  }
53  
54  /*
55   * Destroy the appropriate control structures corresponding
56   * the the EHCI host controller.
57   */
58  int ehci_hcd_stop(void)
59  {
60  	tegrausb_stop_port();
61  	return 0;
62  }
63