mirror of https://gitee.com/openkylin/linux.git
34 lines
893 B
ArmAsm
34 lines
893 B
ArmAsm
/*
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* include/asm-arm/arch-pxa/entry-macro.S
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*
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* Low-level IRQ helper macros for PXA-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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#include <asm/hardware.h>
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#include <asm/arch/irqs.h>
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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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#ifdef CONFIG_PXA27x
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mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP
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mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR
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#else
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mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000
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add \base, \base, #0x00d00000
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ldr \irqstat, [\base, #0] @ ICIP
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ldr \irqnr, [\base, #4] @ ICMR
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#endif
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ands \irqnr, \irqstat, \irqnr
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beq 1001f
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rsb \irqstat, \irqnr, #0
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and \irqstat, \irqstat, \irqnr
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clz \irqnr, \irqstat
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rsb \irqnr, \irqnr, #(31 - PXA_IRQ_SKIP)
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1001:
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.endm
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