ARM: at91: at91 based machines specify their own irq handler at run time

SOC_AT91SAM9 selects MULTI_IRQ_HANDLER in order to let machines specify their
own IRQ handler at run time.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Ludovic Desroches 2012-06-11 15:38:03 +02:00 committed by Nicolas Ferre
parent 3a6b37134c
commit 3e13546674
40 changed files with 98 additions and 27 deletions

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@ -29,6 +29,7 @@ comment "Atmel AT91 Processor"
config SOC_AT91SAM9
bool
select CPU_ARM926T
select MULTI_IRQ_HANDLER
select AT91_SAM9_TIME
select AT91_SAM9_SMC

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@ -36,6 +36,7 @@
#include <mach/board.h>
#include <mach/cpu.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -91,6 +92,7 @@ MACHINE_START(ONEARM, "Ajeco 1ARM single board computer")
/* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = onearm_init_early,
.init_irq = at91_init_irq_default,
.init_machine = onearm_board_init,

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@ -44,6 +44,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -212,6 +213,7 @@ MACHINE_START(AFEB9260, "Custom afeb9260 board")
/* Maintainer: Sergey Lapin <slapin@ossfans.org> */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = afeb9260_init_early,
.init_irq = at91_init_irq_default,
.init_machine = afeb9260_board_init,

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@ -39,6 +39,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
@ -188,6 +189,7 @@ MACHINE_START(CAM60, "KwikByte CAM60")
/* Maintainer: KwikByte */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = cam60_init_early,
.init_irq = at91_init_irq_default,
.init_machine = cam60_board_init,

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@ -36,6 +36,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -158,6 +159,7 @@ MACHINE_START(CARMEVA, "Carmeva")
/* Maintainer: Conitec Datasystems */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = carmeva_init_early,
.init_irq = at91_init_irq_default,
.init_machine = carmeva_board_init,

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@ -41,6 +41,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91sam9260_matrix.h>
#include <mach/at91_matrix.h>
@ -376,6 +377,7 @@ MACHINE_START(CPUAT9G20, "Eukrea CPU9G20")
/* Maintainer: Eric Benard - EUKREA Electromatique */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = cpu9krea_init_early,
.init_irq = at91_init_irq_default,
.init_machine = cpu9krea_board_init,

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@ -37,6 +37,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
#include <mach/cpu.h>
@ -178,6 +179,7 @@ MACHINE_START(CPUAT91, "Eukrea")
/* Maintainer: Eric Benard - EUKREA Electromatique */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = cpuat91_init_early,
.init_irq = at91_init_irq_default,
.init_machine = cpuat91_board_init,

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@ -39,6 +39,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -252,6 +253,7 @@ MACHINE_START(CSB337, "Cogent CSB337")
/* Maintainer: Bill Gatliff */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = csb337_init_early,
.init_irq = at91_init_irq_default,
.init_machine = csb337_board_init,

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@ -36,6 +36,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -133,6 +134,7 @@ MACHINE_START(CSB637, "Cogent CSB637")
/* Maintainer: Bill Gatliff */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = csb637_init_early,
.init_irq = at91_init_irq_default,
.init_machine = csb637_board_init,

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@ -16,6 +16,7 @@
#include <linux/of_platform.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <asm/setup.h>
#include <asm/irq.h>
@ -53,6 +54,7 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = at91_dt_initialize,
.init_irq = at91_dt_init_irq,
.init_machine = at91_dt_device_init,

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@ -28,6 +28,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include "generic.h"
static void __init at91eb01_init_irq(void)
@ -43,6 +44,7 @@ static void __init at91eb01_init_early(void)
MACHINE_START(AT91EB01, "Atmel AT91 EB01")
/* Maintainer: Greg Ungerer <gerg@snapgear.com> */
.timer = &at91x40_timer,
.handle_irq = at91_aic_handle_irq,
.init_early = at91eb01_init_early,
.init_irq = at91eb01_init_irq,
MACHINE_END

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@ -36,6 +36,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -118,6 +119,7 @@ static void __init eb9200_board_init(void)
MACHINE_START(ATEB9200, "Embest ATEB9200")
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = eb9200_init_early,
.init_irq = at91_init_irq_default,
.init_machine = eb9200_board_init,

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@ -39,6 +39,7 @@
#include <mach/board.h>
#include <mach/cpu.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -170,6 +171,7 @@ MACHINE_START(ECBAT91, "emQbit's ECB_AT91")
/* Maintainer: emQbit.com */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ecb_at91init_early,
.init_irq = at91_init_irq_default,
.init_machine = ecb_at91board_init,

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@ -25,6 +25,7 @@
#include <asm/mach/map.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
#include <mach/cpu.h>
@ -132,6 +133,7 @@ MACHINE_START(ECO920, "eco920")
/* Maintainer: Sascha Hauer */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = eco920_init_early,
.init_irq = at91_init_irq_default,
.init_machine = eco920_board_init,

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@ -34,6 +34,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include "generic.h"
@ -160,6 +161,7 @@ MACHINE_START(FLEXIBITY, "Flexibity Connect")
/* Maintainer: Maxim Osipov */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = flexibity_init_early,
.init_irq = at91_init_irq_default,
.init_machine = flexibity_board_init,

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@ -42,6 +42,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
@ -262,6 +263,7 @@ MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
/* Maintainer: Sergio Tanzilli */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = foxg20_init_early,
.init_irq = at91_init_irq_default,
.init_machine = foxg20_board_init,

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@ -31,6 +31,7 @@
#include <asm/mach/arch.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/gsia18s.h>
#include <mach/stamp9g20.h>
@ -575,6 +576,7 @@ static void __init gsia18s_board_init(void)
MACHINE_START(GSIA18S, "GS_IA18_S")
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = gsia18s_init_early,
.init_irq = at91_init_irq_default,
.init_machine = gsia18s_board_init,

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@ -35,6 +35,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/cpu.h>
#include "generic.h"
@ -93,6 +94,7 @@ MACHINE_START(KAFA, "Sperry-Sun KAFA")
/* Maintainer: Sergei Sharonov */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = kafa_init_early,
.init_irq = at91_init_irq_default,
.init_machine = kafa_board_init,

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@ -37,6 +37,7 @@
#include <mach/board.h>
#include <mach/cpu.h>
#include <mach/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
@ -133,6 +134,7 @@ MACHINE_START(KB9200, "KB920x")
/* Maintainer: KwikByte, Inc. */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = kb9202_init_early,
.init_irq = at91_init_irq_default,
.init_machine = kb9202_board_init,

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@ -45,6 +45,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
@ -378,6 +379,7 @@ MACHINE_START(NEOCORE926, "ADENEO NEOCORE 926")
/* Maintainer: ADENEO */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = neocore926_init_early,
.init_irq = at91_init_irq_default,
.init_machine = neocore926_board_init,

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@ -30,6 +30,7 @@
#include <asm/mach/arch.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/stamp9g20.h>
@ -218,6 +219,7 @@ MACHINE_START(PCONTROL_G20, "PControl G20")
/* Maintainer: pgsellmann@portner-elektronik.at */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = pcontrol_g20_init_early,
.init_irq = at91_init_irq_default,
.init_machine = pcontrol_g20_board_init,

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@ -38,6 +38,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
@ -120,6 +121,7 @@ MACHINE_START(PICOTUX2XX, "picotux 200")
/* Maintainer: Kleinhenz Elektronik GmbH */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = picotux200_init_early,
.init_irq = at91_init_irq_default,
.init_machine = picotux200_board_init,

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@ -41,6 +41,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
@ -258,6 +259,7 @@ MACHINE_START(QIL_A9260, "CALAO QIL_A9260")
/* Maintainer: calao-systems */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -40,6 +40,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
@ -223,6 +224,7 @@ MACHINE_START(AT91RM9200DK, "Atmel AT91RM9200-DK")
/* Maintainer: SAN People/Atmel */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = dk_init_early,
.init_irq = at91_init_irq_default,
.init_machine = dk_board_init,

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@ -40,6 +40,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
@ -190,6 +191,7 @@ MACHINE_START(AT91RM9200EK, "Atmel AT91RM9200-EK")
/* Maintainer: SAN People/Atmel */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -26,6 +26,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <linux/gpio.h>
@ -225,6 +226,7 @@ MACHINE_START(RSI_EWS, "RSI EWS")
/* Maintainer: Josef Holzmayr <holzmayr@rsi-elektrotechnik.de> */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = rsi_ews_init_early,
.init_irq = at91_init_irq_default,
.init_machine = rsi_ews_board_init,

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@ -38,6 +38,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
@ -202,6 +203,7 @@ MACHINE_START(SAM9_L9260, "Olimex SAM9-L9260")
/* Maintainer: Olimex */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -42,6 +42,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
#include <mach/system_rev.h>
@ -344,6 +345,7 @@ MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -46,6 +46,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
#include <mach/system_rev.h>
@ -615,6 +616,7 @@ MACHINE_START(AT91SAM9G10EK, "Atmel AT91SAM9G10-EK")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -45,6 +45,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
#include <mach/system_rev.h>
@ -443,6 +444,7 @@ MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -44,6 +44,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/system_rev.h>
@ -413,6 +414,7 @@ MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,
@ -422,6 +424,7 @@ MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -43,6 +43,7 @@
#include <asm/mach/irq.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
#include <mach/system_rev.h>
@ -503,6 +504,7 @@ MACHINE_START(AT91SAM9M10G45EK, "Atmel AT91SAM9M10G45-EK")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -31,6 +31,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
@ -319,6 +320,7 @@ MACHINE_START(AT91SAM9RLEK, "Atmel AT91SAM9RL-EK")
/* Maintainer: Atmel */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -33,6 +33,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
@ -178,6 +179,7 @@ static void __init snapper9260_board_init(void)
MACHINE_START(SNAPPER_9260, "Bluewater Systems Snapper 9260/9G20 module")
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = snapper9260_init_early,
.init_irq = at91_init_irq_default,
.init_machine = snapper9260_board_init,

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@ -26,6 +26,7 @@
#include <asm/mach/arch.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
@ -287,6 +288,7 @@ MACHINE_START(PORTUXG20, "taskit PortuxG20")
/* Maintainer: taskit GmbH */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = stamp9g20_init_early,
.init_irq = at91_init_irq_default,
.init_machine = portuxg20_board_init,
@ -296,6 +298,7 @@ MACHINE_START(STAMP9G20, "taskit Stamp9G20")
/* Maintainer: taskit GmbH */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = stamp9g20_init_early,
.init_irq = at91_init_irq_default,
.init_machine = stamp9g20evb_board_init,

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@ -42,6 +42,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91sam9_smc.h>
#include <mach/at91_shdwc.h>
@ -358,6 +359,7 @@ MACHINE_START(USB_A9263, "CALAO USB_A9263")
/* Maintainer: calao-systems */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,
@ -367,6 +369,7 @@ MACHINE_START(USB_A9260, "CALAO USB_A9260")
/* Maintainer: calao-systems */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,
@ -376,6 +379,7 @@ MACHINE_START(USB_A9G20, "CALAO USB_A92G0")
/* Maintainer: Jean-Christophe PLAGNIOL-VILLARD */
.timer = &at91sam926x_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = ek_init_early,
.init_irq = at91_init_irq_default,
.init_machine = ek_board_init,

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@ -44,6 +44,7 @@
#include <mach/hardware.h>
#include <mach/board.h>
#include <mach/at91_aic.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
#include <mach/cpu.h>
@ -590,6 +591,7 @@ MACHINE_START(YL9200, "uCdragon YL-9200")
/* Maintainer: S.Birtles */
.timer = &at91rm9200_timer,
.map_io = at91_map_io,
.handle_irq = at91_aic_handle_irq,
.init_early = yl9200_init_early,
.init_irq = at91_init_irq_default,
.init_machine = yl9200_board_init,

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@ -65,4 +65,6 @@ extern void __iomem *at91_aic_base;
#define AT91_AIC_FFDR 0x144 /* Fast Forcing Disable Register [SAM9 only] */
#define AT91_AIC_FFSR 0x148 /* Fast Forcing Status Register [SAM9 only] */
void at91_aic_handle_irq(struct pt_regs *regs);
#endif

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@ -1,27 +0,0 @@
/*
* arch/arm/mach-at91/include/mach/entry-macro.S
*
* Copyright (C) 2003-2005 SAN People
*
* Low-level IRQ helper macros for AT91RM9200 platforms
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
* warranty of any kind, whether express or implied.
*/
#include <mach/hardware.h>
#include <mach/at91_aic.h>
.macro get_irqnr_preamble, base, tmp
ldr \base, =at91_aic_base @ base virtual address of AIC peripheral
ldr \base, [\base]
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
ldr \irqnr, [\base, #AT91_AIC_IVR] @ read IRQ vector register: de-asserts nIRQ to processor (and clears interrupt)
ldr \irqstat, [\base, #AT91_AIC_ISR] @ read interrupt source number
teq \irqstat, #0 @ ISR is 0 when no current interrupt, or spurious interrupt
streq \tmp, [\base, #AT91_AIC_EOICR] @ not going to be handled further, then ACK it now.
.endm

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@ -36,6 +36,7 @@
#include <asm/irq.h>
#include <asm/setup.h>
#include <asm/exception.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/map.h>
@ -45,6 +46,24 @@ static struct irq_domain *at91_aic_domain;
static struct device_node *at91_aic_np;
static unsigned int *at91_aic_irq_priorities;
asmlinkage void __exception_irq_entry at91_aic_handle_irq(struct pt_regs *regs)
{
u32 irqnr;
u32 irqstat;
irqnr = at91_aic_read(AT91_AIC_IVR);
irqstat = at91_aic_read(AT91_AIC_ISR);
/*
* ISR value is 0 when there is no current interrupt or when there is
* a spurious interrupt
*/
if (!irqstat)
at91_aic_write(AT91_AIC_EOICR, 0);
else
handle_IRQ(irqnr, regs);
}
static void at91_aic_mask_irq(struct irq_data *d)
{
/* Disable interrupt on AIC */