27 lines
687 B
ArmAsm
27 lines
687 B
ArmAsm
/*
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* arch/arm/mach-vt8500/include/mach/entry-macro.S
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*
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* Low-level IRQ helper macros for VIA VT8500
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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.macro get_irqnr_preamble, base, tmp
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@ physical 0xd8140000 is virtual 0xf8140000
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mov \base, #0xf8000000
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orr \base, \base, #0x00140000
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.endm
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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ldr \irqnr, [\base]
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cmp \irqnr, #63 @ may be false positive, check interrupt status
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bne 1001f
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ldr \irqstat, [\base, #0x84]
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ands \irqstat, #0x80000000
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moveq \irqnr, #0
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1001:
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.endm
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