38 lines
1 KiB
ArmAsm
38 lines
1 KiB
ArmAsm
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/*
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* Low-level IRQ helper macros for Freescale STMP37XX
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*
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* Embedded Alley Solutions, Inc <source@embeddedalley.com>
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*
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* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
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* Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
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*/
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/*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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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 \base, #0xf0000000 @ vm address of IRQ controller
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ldr \irqnr, [\base, #0x30] @ HW_ICOLL_STAT
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cmp \irqnr, #0x3f
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movne \irqstat, #0 @ Ack this IRQ
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strne \irqstat, [\base, #0x00]@ HW_ICOLL_VECTOR
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moveqs \irqnr, #0 @ Zero flag set for no IRQ
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.endm
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.macro get_irqnr_preamble, base, tmp
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.endm
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.macro arch_ret_to_user, tmp1, tmp2
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.endm
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