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https://github.com/adulau/aha.git
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57 lines
1.4 KiB
ArmAsm
57 lines
1.4 KiB
ArmAsm
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/*
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* include/asm-arm/arch-iop3xx/entry-macro.S
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*
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* Low-level IRQ helper macros for IOP3xx-based platforms
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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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#if defined(CONFIG_ARCH_IOP321)
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.macro disable_fiq
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.endm
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/*
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* Note: only deal with normal interrupts, not FIQ
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*/
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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mov \irqnr, #0
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mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC
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cmp \irqstat, #0
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beq 1001f
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clz \irqnr, \irqstat
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mov \base, #31
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subs \irqnr,\base,\irqnr
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add \irqnr,\irqnr,#IRQ_IOP321_DMA0_EOT
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1001:
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.endm
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#elif defined(CONFIG_ARCH_IOP331)
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.macro disable_fiq
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.endm
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/*
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* Note: only deal with normal interrupts, not FIQ
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*/
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.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
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mov \irqnr, #0
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mrc p6, 0, \irqstat, c4, c0, 0 @ Read IINTSRC0
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cmp \irqstat, #0
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bne 1002f
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mrc p6, 0, \irqstat, c5, c0, 0 @ Read IINTSRC1
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cmp \irqstat, #0
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beq 1001f
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clz \irqnr, \irqstat
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rsbs \irqnr,\irqnr,#31 @ recommend by RMK
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add \irqnr,\irqnr,#IRQ_IOP331_XINT8
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b 1001f
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1002: clz \irqnr, \irqstat
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rsbs \irqnr,\irqnr,#31 @ recommend by RMK
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add \irqnr,\irqnr,#IRQ_IOP331_DMA0_EOT
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1001:
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.endm
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#endif
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