openwrt/target/linux/brcm-2.4/files/arch/mips/bcm947xx/generic/int-handler.S

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/*
* Generic interrupt handler for Broadcom MIPS boards
*
* Copyright 2004, Broadcom Corporation
* All Rights Reserved.
*
* THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
* KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
* SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
* FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
*
* $Id: int-handler.S,v 1.1 2005/03/16 13:50:00 wbx Exp $
*/
#include <linux/config.h>
#include <asm/asm.h>
#include <asm/mipsregs.h>
#include <asm/regdef.h>
#include <asm/stackframe.h>
/*
* MIPS IRQ Source
* -------- ------
* 0 Software (ignored)
* 1 Software (ignored)
* 2 Combined hardware interrupt (hw0)
* 3 Hardware
* 4 Hardware
* 5 Hardware
* 6 Hardware
* 7 R4k timer
*/
.text
.set noreorder
.set noat
.align 5
NESTED(brcmIRQ, PT_SIZE, sp)
SAVE_ALL
CLI
.set at
.set noreorder
jal brcm_irq_dispatch
move a0, sp
j ret_from_irq
nop
END(brcmIRQ)