interrupts.c 1.4 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061
  1. /*
  2. * (C) Copyright 2000-2007
  3. * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
  4. *
  5. * Copyright 2004 Freescale Semiconductor, Inc.
  6. *
  7. * See file CREDITS for list of people who contributed to this
  8. * project.
  9. *
  10. * This program is free software; you can redistribute it and/or
  11. * modify it under the terms of the GNU General Public License as
  12. * published by the Free Software Foundation; either version 2 of
  13. * the License, or (at your option) any later version.
  14. *
  15. * This program is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU General Public License
  21. * along with this program; if not, write to the Free Software
  22. * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23. * MA 02111-1307 USA
  24. *
  25. * Derived from the MPC83xx code.
  26. */
  27. #include <common.h>
  28. DECLARE_GLOBAL_DATA_PTR;
  29. struct irq_action {
  30. interrupt_handler_t *handler;
  31. void *arg;
  32. ulong count;
  33. };
  34. int interrupt_init_cpu (unsigned *decrementer_count)
  35. {
  36. *decrementer_count = get_tbclk () / CONFIG_SYS_HZ;
  37. return 0;
  38. }
  39. /*
  40. * Install and free an interrupt handler.
  41. */
  42. void
  43. irq_install_handler (int irq, interrupt_handler_t * handler, void *arg)
  44. {
  45. }
  46. void irq_free_handler (int irq)
  47. {
  48. }
  49. void timer_interrupt_cpu (struct pt_regs *regs)
  50. {
  51. /* nothing to do here */
  52. return;
  53. }