usb.c 1.7 KB

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  1. /*
  2. * (C) Copyright 2007
  3. * Markus Klotzbuecher, DENX Software Engineering <mk@denx.de>
  4. *
  5. * See file CREDITS for list of people who contributed to this
  6. * project.
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public License as
  10. * published by the Free Software Foundation; either version 2 of
  11. * the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with this program; if not, write to the Free Software
  20. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21. * MA 02111-1307 USA
  22. */
  23. #include <common.h>
  24. #if defined(CONFIG_USB_OHCI_NEW) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT)
  25. #include <mpc5xxx.h>
  26. int usb_cpu_init(void)
  27. {
  28. /* Set the USB Clock */
  29. *(vu_long *)MPC5XXX_CDM_48_FDC = CONFIG_USB_CLOCK;
  30. #ifdef CONFIG_PSC3_USB /* USB is using the alternate configuration */
  31. /* remove all PSC3 USB bits first before ORing in ours */
  32. *(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00804f00;
  33. #else
  34. /* remove all USB bits first before ORing in ours */
  35. *(vu_long *)MPC5XXX_GPS_PORT_CONFIG &= ~0x00807000;
  36. #endif
  37. /* Activate USB port */
  38. *(vu_long *)MPC5XXX_GPS_PORT_CONFIG |= CONFIG_USB_CONFIG;
  39. return 0;
  40. }
  41. int usb_cpu_stop(void)
  42. {
  43. return 0;
  44. }
  45. int usb_cpu_init_fail(void)
  46. {
  47. return 0;
  48. }
  49. #endif /* defined(CONFIG_USB_OHCI) && defined(CONFIG_SYS_USB_OHCI_CPU_INIT) */