1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
29 lines
795 B
ArmAsm
29 lines
795 B
ArmAsm
/*
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* include/asm-arm/arch-l7200/entry-macro.S
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*
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* Low-level IRQ helper macros for L7200-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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.equ irq_base_addr, IO_BASE_2
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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 \irqstat, #irq_base_addr @ Virt addr IRQ regs
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add \irqstat, \irqstat, #0x00001000 @ Status reg
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ldr \irqstat, [\irqstat, #0] @ get interrupts
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mov \irqnr, #0
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1001: tst \irqstat, #1
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addeq \irqnr, \irqnr, #1
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moveq \irqstat, \irqstat, lsr #1
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tsteq \irqnr, #32
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beq 1001b
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teq \irqnr, #32
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.endm
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