34 lines
778 B
ArmAsm
34 lines
778 B
ArmAsm
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/*
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* linux/include/asm-arm/arch-aaec2000/entry-macro.S
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*
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* Low-level IRQ helper for aaec-2000 based platforms
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*
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* Copyright (c) 2005 Nicolas Bellido Y Ortega
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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*/
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.macro disable_fiq
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.endm
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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mov r4, #0xf8000000
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add r4, r4, #0x00000500
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mov \base, r4
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ldr \irqstat, [\base, #0]
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cmp \irqstat, #0
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bne 1001f
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ldr \irqnr, =NR_IRQS+1
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b 1003f
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1001: mov \irqnr, #0
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1002: ands \tmp, \irqstat, #1
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mov \irqstat, \irqstat, LSR #1
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add \irqnr, \irqnr, #1
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beq 1002b
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sub \irqnr, \irqnr, #1
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1003:
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.endm
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