drivers/usb/host/ehci-pci.c

   1 /*-
   2  * Copyright (c) 2007-2008, Juniper Networks, Inc.
   3  * All rights reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation version 2 of
   8  * the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  18  * MA 02111-1307 USA
  19  */
  20
  21 #include <common.h>
  22 #include <pci.h>
  23 #include <usb.h>
  24
  25 #include "ehci.h"
  26 #include "ehci-core.h"
  27
  28 #ifdef CONFIG_PCI_EHCI_DEVICE
  29 static struct pci_device_id ehci_pci_ids[] = {
  30         /* Please add supported PCI EHCI controller ids here */
  31         {0x1033, 0x00E0},
  32         {0, 0}
  33 };
  34 #endif
  35
  36 /*
  37  * Create the appropriate control structures to manage
  38  * a new EHCI host controller.
  39  */
  40 int ehci_hcd_init(void)
  41 {
  42         pci_dev_t pdev;
  43         uint32_t addr;
  44
  45         pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
  46         if (pdev == -1) {
  47                 printf("EHCI host controller not found\n");
  48                 return -1;
  49         }
  50
  51         pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &addr);
  52         hccr = (struct ehci_hccr *)addr;
  53         hcor = (struct ehci_hcor *)((uint32_t) hccr +
  54                         HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
  55
  56         return 0;
  57 }
  58
  59 /*
  60  * Destroy the appropriate control structures corresponding
  61  * the the EHCI host controller.
  62  */
  63 int ehci_hcd_stop(void)
  64 {
  65         return 0;
  66 }