entry-macro.S 1.1 KB

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  1. /*
  2. * arch/arm/mach-omap1/include/mach/entry-macro.S
  3. *
  4. * Low-level IRQ helper macros for OMAP-based platforms
  5. *
  6. * Copyright (C) 2009 Texas Instruments
  7. *
  8. * This file is licensed under the terms of the GNU General Public
  9. * License version 2. This program is licensed "as is" without any
  10. * warranty of any kind, whether express or implied.
  11. */
  12. #include <mach/hardware.h>
  13. #include <mach/io.h>
  14. #include <mach/irqs.h>
  15. #include <asm/hardware/gic.h>
  16. .macro get_irqnr_preamble, base, tmp
  17. .endm
  18. .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
  19. ldr \base, =OMAP1_IO_ADDRESS(OMAP_IH1_BASE)
  20. ldr \irqnr, [\base, #IRQ_ITR_REG_OFFSET]
  21. ldr \tmp, [\base, #IRQ_MIR_REG_OFFSET]
  22. mov \irqstat, #0xffffffff
  23. bic \tmp, \irqstat, \tmp
  24. tst \irqnr, \tmp
  25. beq 1510f
  26. ldr \irqnr, [\base, #IRQ_SIR_FIQ_REG_OFFSET]
  27. ldr \tmp, =omap_irq_flags @ irq flags address
  28. ldr \tmp, [\tmp, #0] @ irq flags value
  29. cmp \irqnr, #0
  30. ldreq \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  31. cmpeq \irqnr, \tmp
  32. ldreq \base, =OMAP1_IO_ADDRESS(OMAP_IH2_BASE)
  33. ldreq \irqnr, [\base, #IRQ_SIR_IRQ_REG_OFFSET]
  34. addeqs \irqnr, \irqnr, #32
  35. 1510:
  36. .endm