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},       /* NEC */
  32         {0x12D8, 0x400F},       /* Pericom */
  33         {0, 0}
  34 };
  35 #endif
  36
  37 /*
  38  * Create the appropriate control structures to manage
  39  * a new EHCI host controller.
  40  */
  41 int ehci_hcd_init(void)
  42 {
  43         pci_dev_t pdev;
  44         uint32_t addr;
  45
  46         pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
  47         if (pdev == -1) {
  48                 printf("EHCI host controller not found\n");
  49                 return -1;
  50         }
  51
  52         pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &addr);
  53         hccr = (struct ehci_hccr *)addr;
  54         hcor = (struct ehci_hcor *)((uint32_t) hccr +
  55                         HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
  56
  57         debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
  58                         (uint32_t)hccr, (uint32_t)hcor,
  59                         (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
  60
  61         return 0;
  62 }
  63
  64 /*
  65  * Destroy the appropriate control structures corresponding
  66  * the the EHCI host controller.
  67  */
  68 int ehci_hcd_stop(void)
  69 {
  70         return 0;
  71 }