irqs.h 1.3 KB

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  1. /*
  2. * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
  3. */
  4. /*
  5. * This program is free software; you can redistribute it and/or modify
  6. * it under the terms of the GNU General Public License version 2 as
  7. * published by the Free Software Foundation.
  8. */
  9. #ifndef __ASM_ARCH_MXC_IRQS_H__
  10. #define __ASM_ARCH_MXC_IRQS_H__
  11. /*
  12. * So far all i.MX SoCs have 64 internal interrupts
  13. */
  14. #define MXC_INTERNAL_IRQS 64
  15. #define MXC_GPIO_IRQ_START MXC_INTERNAL_IRQS
  16. #if defined CONFIG_ARCH_MX1
  17. #define MXC_GPIO_IRQS (32 * 4)
  18. #elif defined CONFIG_ARCH_MX2
  19. #define MXC_GPIO_IRQS (32 * 6)
  20. #elif defined CONFIG_ARCH_MX3
  21. #define MXC_GPIO_IRQS (32 * 3)
  22. #endif
  23. /*
  24. * The next 16 interrupts are for board specific purposes. Since
  25. * the kernel can only run on one machine at a time, we can re-use
  26. * these. If you need more, increase MXC_BOARD_IRQS, but keep it
  27. * within sensible limits.
  28. */
  29. #define MXC_BOARD_IRQ_START (MXC_INTERNAL_IRQS + MXC_GPIO_IRQS)
  30. #define MXC_BOARD_IRQS 16
  31. #define NR_IRQS (MXC_BOARD_IRQ_START + MXC_BOARD_IRQS)
  32. extern void imx_irq_set_priority(unsigned char irq, unsigned char prio);
  33. /* all normal IRQs can be FIQs */
  34. #define FIQ_START 0
  35. /* switch betwean IRQ and FIQ */
  36. extern int mxc_set_irq_fiq(unsigned int irq, unsigned int type);
  37. #endif /* __ASM_ARCH_MXC_IRQS_H__ */