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Message-Id: <1369298990-9826-2-git-send-email-b.brezillon@overkiz.com>
Date: Thu, 23 May 2013 10:49:48 +0200
From: Boris BREZILLON <b.brezillon@...rkiz.com>
To: Andrew Victor <linux@...im.org.za>,
Nicolas Ferre <nicolas.ferre@...el.com>,
Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
Thomas Gleixner <tglx@...utronix.de>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Boris BREZILLON <brezillonboris@...il.com>
Subject: [PATCH 1/3] ARM: at91: move at91 aic driver to drivers/irqchip
From: Boris BREZILLON <brezillonboris@...il.com>
Move arch/arm/mach-at91/irq.c to drivers/irqchip/irq-at91.c.
Move arch/arm/mach-at91/at91_aic.h to
arch/arm/mach-at91/include/mach/at91_aic.h to avoid ugly reference
to header file :
#include "../../arch/arm/mach-at91/at91_aic.h"
Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>
---
arch/arm/mach-at91/Makefile | 2 +-
arch/arm/mach-at91/at91_aic.h | 99 -----
arch/arm/mach-at91/at91rm9200.c | 2 +-
arch/arm/mach-at91/at91sam9260.c | 2 +-
arch/arm/mach-at91/at91sam9261.c | 2 +-
arch/arm/mach-at91/at91sam9263.c | 2 +-
arch/arm/mach-at91/at91sam9g45.c | 2 +-
arch/arm/mach-at91/at91sam9rl.c | 2 +-
arch/arm/mach-at91/at91x40.c | 2 +-
arch/arm/mach-at91/board-1arm.c | 2 +-
arch/arm/mach-at91/board-afeb-9260v1.c | 2 +-
arch/arm/mach-at91/board-cam60.c | 2 +-
arch/arm/mach-at91/board-carmeva.c | 2 +-
arch/arm/mach-at91/board-cpu9krea.c | 2 +-
arch/arm/mach-at91/board-cpuat91.c | 2 +-
arch/arm/mach-at91/board-csb337.c | 2 +-
arch/arm/mach-at91/board-csb637.c | 2 +-
arch/arm/mach-at91/board-dt-rm9200.c | 3 +-
arch/arm/mach-at91/board-dt-sam9.c | 3 +-
arch/arm/mach-at91/board-dt-sama5.c | 3 +-
arch/arm/mach-at91/board-eb01.c | 3 +-
arch/arm/mach-at91/board-eb9200.c | 3 +-
arch/arm/mach-at91/board-ecbat91.c | 2 +-
arch/arm/mach-at91/board-eco920.c | 2 +-
arch/arm/mach-at91/board-flexibity.c | 2 +-
arch/arm/mach-at91/board-foxg20.c | 2 +-
arch/arm/mach-at91/board-gsia18s.c | 2 +-
arch/arm/mach-at91/board-kafa.c | 2 +-
arch/arm/mach-at91/board-kb9202.c | 2 +-
arch/arm/mach-at91/board-pcontrol-g20.c | 2 +-
arch/arm/mach-at91/board-picotux200.c | 2 +-
arch/arm/mach-at91/board-qil-a9260.c | 2 +-
arch/arm/mach-at91/board-rm9200dk.c | 2 +-
arch/arm/mach-at91/board-rm9200ek.c | 2 +-
arch/arm/mach-at91/board-rsi-ews.c | 3 +-
arch/arm/mach-at91/board-sam9-l9260.c | 2 +-
arch/arm/mach-at91/board-sam9260ek.c | 2 +-
arch/arm/mach-at91/board-sam9261ek.c | 2 +-
arch/arm/mach-at91/board-sam9263ek.c | 2 +-
arch/arm/mach-at91/board-sam9g20ek.c | 2 +-
arch/arm/mach-at91/board-sam9m10g45ek.c | 2 +-
arch/arm/mach-at91/board-sam9rlek.c | 2 +-
arch/arm/mach-at91/board-snapper9260.c | 2 +-
arch/arm/mach-at91/board-stamp9g20.c | 2 +-
arch/arm/mach-at91/board-usb-a926x.c | 2 +-
arch/arm/mach-at91/board-yl-9200.c | 2 +-
arch/arm/mach-at91/include/mach/at91_aic.h | 99 +++++
arch/arm/mach-at91/irq.c | 547 ----------------------------
arch/arm/mach-at91/pm.c | 2 +-
drivers/irqchip/Makefile | 1 +
drivers/irqchip/irq-at91.c | 547 ++++++++++++++++++++++++++++
51 files changed, 699 insertions(+), 692 deletions(-)
diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 788562d..5333701 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -2,7 +2,7 @@
# Makefile for the linux kernel.
#
-obj-y := irq.o gpio.o setup.o
+obj-y := gpio.o setup.o
obj-m :=
obj-n :=
obj- :=
diff --git a/arch/arm/mach-at91/at91_aic.h b/arch/arm/mach-at91/at91_aic.h
deleted file mode 100644
index eaea661..0000000
--- a/arch/arm/mach-at91/at91_aic.h
+++ /dev/null
@@ -1,99 +0,0 @@
-/*
- * arch/arm/mach-at91/include/mach/at91_aic.h
- *
- * Copyright (C) 2005 Ivan Kokshaysky
- * Copyright (C) SAN People
- *
- * Advanced Interrupt Controller (AIC) - System peripherals registers.
- * Based on AT91RM9200 datasheet revision E.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef AT91_AIC_H
-#define AT91_AIC_H
-
-#ifndef __ASSEMBLY__
-extern void __iomem *at91_aic_base;
-
-#define at91_aic_read(field) \
- __raw_readl(at91_aic_base + field)
-
-#define at91_aic_write(field, value) \
- __raw_writel(value, at91_aic_base + field)
-#else
-.extern at91_aic_base
-#endif
-
-/* Number of irq lines managed by AIC */
-#define NR_AIC_IRQS 32
-#define NR_AIC5_IRQS 128
-
-#define AT91_AIC5_SSR 0x0 /* Source Select Register [AIC5] */
-#define AT91_AIC5_INTSEL_MSK (0x7f << 0) /* Interrupt Line Selection Mask */
-
-#define AT91_AIC_IRQ_MIN_PRIORITY 0
-#define AT91_AIC_IRQ_MAX_PRIORITY 7
-
-#define AT91_AIC_SMR(n) ((n) * 4) /* Source Mode Registers 0-31 */
-#define AT91_AIC5_SMR 0x4 /* Source Mode Register [AIC5] */
-#define AT91_AIC_PRIOR (7 << 0) /* Priority Level */
-#define AT91_AIC_SRCTYPE (3 << 5) /* Interrupt Source Type */
-#define AT91_AIC_SRCTYPE_LOW (0 << 5)
-#define AT91_AIC_SRCTYPE_FALLING (1 << 5)
-#define AT91_AIC_SRCTYPE_HIGH (2 << 5)
-#define AT91_AIC_SRCTYPE_RISING (3 << 5)
-
-#define AT91_AIC_SVR(n) (0x80 + ((n) * 4)) /* Source Vector Registers 0-31 */
-#define AT91_AIC5_SVR 0x8 /* Source Vector Register [AIC5] */
-#define AT91_AIC_IVR 0x100 /* Interrupt Vector Register */
-#define AT91_AIC5_IVR 0x10 /* Interrupt Vector Register [AIC5] */
-#define AT91_AIC_FVR 0x104 /* Fast Interrupt Vector Register */
-#define AT91_AIC5_FVR 0x14 /* Fast Interrupt Vector Register [AIC5] */
-#define AT91_AIC_ISR 0x108 /* Interrupt Status Register */
-#define AT91_AIC5_ISR 0x18 /* Interrupt Status Register [AIC5] */
-#define AT91_AIC_IRQID (0x1f << 0) /* Current Interrupt Identifier */
-
-#define AT91_AIC_IPR 0x10c /* Interrupt Pending Register */
-#define AT91_AIC5_IPR0 0x20 /* Interrupt Pending Register 0 [AIC5] */
-#define AT91_AIC5_IPR1 0x24 /* Interrupt Pending Register 1 [AIC5] */
-#define AT91_AIC5_IPR2 0x28 /* Interrupt Pending Register 2 [AIC5] */
-#define AT91_AIC5_IPR3 0x2c /* Interrupt Pending Register 3 [AIC5] */
-#define AT91_AIC_IMR 0x110 /* Interrupt Mask Register */
-#define AT91_AIC5_IMR 0x30 /* Interrupt Mask Register [AIC5] */
-#define AT91_AIC_CISR 0x114 /* Core Interrupt Status Register */
-#define AT91_AIC5_CISR 0x34 /* Core Interrupt Status Register [AIC5] */
-#define AT91_AIC_NFIQ (1 << 0) /* nFIQ Status */
-#define AT91_AIC_NIRQ (1 << 1) /* nIRQ Status */
-
-#define AT91_AIC_IECR 0x120 /* Interrupt Enable Command Register */
-#define AT91_AIC5_IECR 0x40 /* Interrupt Enable Command Register [AIC5] */
-#define AT91_AIC_IDCR 0x124 /* Interrupt Disable Command Register */
-#define AT91_AIC5_IDCR 0x44 /* Interrupt Disable Command Register [AIC5] */
-#define AT91_AIC_ICCR 0x128 /* Interrupt Clear Command Register */
-#define AT91_AIC5_ICCR 0x48 /* Interrupt Clear Command Register [AIC5] */
-#define AT91_AIC_ISCR 0x12c /* Interrupt Set Command Register */
-#define AT91_AIC5_ISCR 0x4c /* Interrupt Set Command Register [AIC5] */
-#define AT91_AIC_EOICR 0x130 /* End of Interrupt Command Register */
-#define AT91_AIC5_EOICR 0x38 /* End of Interrupt Command Register [AIC5] */
-#define AT91_AIC_SPU 0x134 /* Spurious Interrupt Vector Register */
-#define AT91_AIC5_SPU 0x3c /* Spurious Interrupt Vector Register [AIC5] */
-#define AT91_AIC_DCR 0x138 /* Debug Control Register */
-#define AT91_AIC5_DCR 0x6c /* Debug Control Register [AIC5] */
-#define AT91_AIC_DCR_PROT (1 << 0) /* Protection Mode */
-#define AT91_AIC_DCR_GMSK (1 << 1) /* General Mask */
-
-#define AT91_AIC_FFER 0x140 /* Fast Forcing Enable Register [SAM9 only] */
-#define AT91_AIC5_FFER 0x50 /* Fast Forcing Enable Register [AIC5] */
-#define AT91_AIC_FFDR 0x144 /* Fast Forcing Disable Register [SAM9 only] */
-#define AT91_AIC5_FFDR 0x54 /* Fast Forcing Disable Register [AIC5] */
-#define AT91_AIC_FFSR 0x148 /* Fast Forcing Status Register [SAM9 only] */
-#define AT91_AIC5_FFSR 0x58 /* Fast Forcing Status Register [AIC5] */
-
-void at91_aic_handle_irq(struct pt_regs *regs);
-void at91_aic5_handle_irq(struct pt_regs *regs);
-
-#endif
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index d193a40..6c1204a 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -20,8 +20,8 @@
#include <mach/at91_pmc.h>
#include <mach/at91_st.h>
#include <mach/cpu.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "soc.h"
#include "generic.h"
#include "clock.h"
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index a8ce245..55332fa 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -21,8 +21,8 @@
#include <mach/at91_dbgu.h>
#include <mach/at91sam9260.h>
#include <mach/at91_pmc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_rstc.h"
#include "soc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index 25efb5a..6db61e6 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -20,8 +20,8 @@
#include <mach/cpu.h>
#include <mach/at91sam9261.h>
#include <mach/at91_pmc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_rstc.h"
#include "soc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index f44ffd2..b9ec043 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -19,8 +19,8 @@
#include <asm/system_misc.h>
#include <mach/at91sam9263.h>
#include <mach/at91_pmc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_rstc.h"
#include "soc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 8b7fce0..1270707 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -20,8 +20,8 @@
#include <mach/at91sam9g45.h>
#include <mach/at91_pmc.h>
#include <mach/cpu.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "soc.h"
#include "generic.h"
#include "clock.h"
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index f77fae5..d5f77d6 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -20,8 +20,8 @@
#include <mach/at91_dbgu.h>
#include <mach/at91sam9rl.h>
#include <mach/at91_pmc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_rstc.h"
#include "soc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/at91x40.c b/arch/arm/mach-at91/at91x40.c
index 19ca793..e8b30fb 100644
--- a/arch/arm/mach-at91/at91x40.c
+++ b/arch/arm/mach-at91/at91x40.c
@@ -20,8 +20,8 @@
#include <mach/at91x40.h>
#include <mach/at91_st.h>
#include <mach/timex.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "generic.h"
/*
diff --git a/arch/arm/mach-at91/board-1arm.c b/arch/arm/mach-at91/board-1arm.c
index 35ab632..8037dfe 100644
--- a/arch/arm/mach-at91/board-1arm.c
+++ b/arch/arm/mach-at91/board-1arm.c
@@ -34,9 +34,9 @@
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
+#include <mach/at91_aic.h>
#include <mach/cpu.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-afeb-9260v1.c b/arch/arm/mach-at91/board-afeb-9260v1.c
index f95e31c..28bea23 100644
--- a/arch/arm/mach-at91/board-afeb-9260v1.c
+++ b/arch/arm/mach-at91/board-afeb-9260v1.c
@@ -42,8 +42,8 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-cam60.c b/arch/arm/mach-at91/board-cam60.c
index ade948b..6ebdf32 100644
--- a/arch/arm/mach-at91/board-cam60.c
+++ b/arch/arm/mach-at91/board-cam60.c
@@ -39,8 +39,8 @@
#include <asm/mach/irq.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-carmeva.c b/arch/arm/mach-at91/board-carmeva.c
index 9298305..842db49 100644
--- a/arch/arm/mach-at91/board-carmeva.c
+++ b/arch/arm/mach-at91/board-carmeva.c
@@ -35,8 +35,8 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-cpu9krea.c b/arch/arm/mach-at91/board-cpu9krea.c
index 008527e..4714e9e 100644
--- a/arch/arm/mach-at91/board-cpu9krea.c
+++ b/arch/arm/mach-at91/board-cpu9krea.c
@@ -43,8 +43,8 @@
#include <mach/at91sam9_smc.h>
#include <mach/at91sam9260_matrix.h>
#include <mach/at91_matrix.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-cpuat91.c b/arch/arm/mach-at91/board-cpuat91.c
index 42f1353..c1663ed 100644
--- a/arch/arm/mach-at91/board-cpuat91.c
+++ b/arch/arm/mach-at91/board-cpuat91.c
@@ -39,8 +39,8 @@
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
#include <mach/cpu.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c
index e5fde215..3231703 100644
--- a/arch/arm/mach-at91/board-csb337.c
+++ b/arch/arm/mach-at91/board-csb337.c
@@ -38,8 +38,8 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-csb637.c b/arch/arm/mach-at91/board-csb637.c
index fdf1106..d58c7e6 100644
--- a/arch/arm/mach-at91/board-csb637.c
+++ b/arch/arm/mach-at91/board-csb637.c
@@ -35,8 +35,8 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-dt-rm9200.c b/arch/arm/mach-at91/board-dt-rm9200.c
index 3fcb662..0c2a06d 100644
--- a/arch/arm/mach-at91/board-dt-rm9200.c
+++ b/arch/arm/mach-at91/board-dt-rm9200.c
@@ -22,7 +22,8 @@
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
-#include "at91_aic.h"
+#include <mach/at91_aic.h>
+
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-dt-sam9.c b/arch/arm/mach-at91/board-dt-sam9.c
index 8db3013..ac899d8 100644
--- a/arch/arm/mach-at91/board-dt-sam9.c
+++ b/arch/arm/mach-at91/board-dt-sam9.c
@@ -21,7 +21,8 @@
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
-#include "at91_aic.h"
+#include <mach/at91_aic.h>
+
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-dt-sama5.c b/arch/arm/mach-at91/board-dt-sama5.c
index 705305e..43b8f7a 100644
--- a/arch/arm/mach-at91/board-dt-sama5.c
+++ b/arch/arm/mach-at91/board-dt-sama5.c
@@ -23,7 +23,8 @@
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
-#include "at91_aic.h"
+#include <mach/at91_aic.h>
+
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-eb01.c b/arch/arm/mach-at91/board-eb01.c
index becf0a6..4097ede 100644
--- a/arch/arm/mach-at91/board-eb01.c
+++ b/arch/arm/mach-at91/board-eb01.c
@@ -28,7 +28,8 @@
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
-#include "at91_aic.h"
+#include <mach/at91_aic.h>
+
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-eb9200.c b/arch/arm/mach-at91/board-eb9200.c
index f9be816..afa5ebb 100644
--- a/arch/arm/mach-at91/board-eb9200.c
+++ b/arch/arm/mach-at91/board-eb9200.c
@@ -35,7 +35,8 @@
#include <asm/mach/map.h>
#include <asm/mach/irq.h>
-#include "at91_aic.h"
+#include <mach/at91_aic.h>
+
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-ecbat91.c b/arch/arm/mach-at91/board-ecbat91.c
index b2fcd71..c794768 100644
--- a/arch/arm/mach-at91/board-ecbat91.c
+++ b/arch/arm/mach-at91/board-ecbat91.c
@@ -38,8 +38,8 @@
#include <asm/mach/irq.h>
#include <mach/cpu.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-eco920.c b/arch/arm/mach-at91/board-eco920.c
index 77de410..fc3e373 100644
--- a/arch/arm/mach-at91/board-eco920.c
+++ b/arch/arm/mach-at91/board-eco920.c
@@ -27,8 +27,8 @@
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
#include <mach/cpu.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-flexibity.c b/arch/arm/mach-at91/board-flexibity.c
index 737c085..59a1958 100644
--- a/arch/arm/mach-at91/board-flexibity.c
+++ b/arch/arm/mach-at91/board-flexibity.c
@@ -33,8 +33,8 @@
#include <asm/mach/irq.h>
#include <mach/hardware.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-foxg20.c b/arch/arm/mach-at91/board-foxg20.c
index c20a870..4b4df05 100644
--- a/arch/arm/mach-at91/board-foxg20.c
+++ b/arch/arm/mach-at91/board-foxg20.c
@@ -42,8 +42,8 @@
#include <asm/mach/irq.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-gsia18s.c b/arch/arm/mach-at91/board-gsia18s.c
index c1d61d2..1babcbd 100644
--- a/arch/arm/mach-at91/board-gsia18s.c
+++ b/arch/arm/mach-at91/board-gsia18s.c
@@ -31,8 +31,8 @@
#include <asm/mach/arch.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-kafa.c b/arch/arm/mach-at91/board-kafa.c
index 88e2f5d..aca52d3 100644
--- a/arch/arm/mach-at91/board-kafa.c
+++ b/arch/arm/mach-at91/board-kafa.c
@@ -35,8 +35,8 @@
#include <asm/mach/irq.h>
#include <mach/cpu.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-kb9202.c b/arch/arm/mach-at91/board-kb9202.c
index 0c519d9..7768df0 100644
--- a/arch/arm/mach-at91/board-kb9202.c
+++ b/arch/arm/mach-at91/board-kb9202.c
@@ -38,8 +38,8 @@
#include <mach/cpu.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-pcontrol-g20.c b/arch/arm/mach-at91/board-pcontrol-g20.c
index 65c0d6b..6df21db 100644
--- a/arch/arm/mach-at91/board-pcontrol-g20.c
+++ b/arch/arm/mach-at91/board-pcontrol-g20.c
@@ -30,8 +30,8 @@
#include <asm/mach/arch.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-picotux200.c b/arch/arm/mach-at91/board-picotux200.c
index ab2b2ec..566b30c 100644
--- a/arch/arm/mach-at91/board-picotux200.c
+++ b/arch/arm/mach-at91/board-picotux200.c
@@ -39,8 +39,8 @@
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-qil-a9260.c b/arch/arm/mach-at91/board-qil-a9260.c
index aa3bc9b..0ae5eb1 100644
--- a/arch/arm/mach-at91/board-qil-a9260.c
+++ b/arch/arm/mach-at91/board-qil-a9260.c
@@ -41,8 +41,8 @@
#include <mach/hardware.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
diff --git a/arch/arm/mach-at91/board-rm9200dk.c b/arch/arm/mach-at91/board-rm9200dk.c
index 690541b..82f0335e 100644
--- a/arch/arm/mach-at91/board-rm9200dk.c
+++ b/arch/arm/mach-at91/board-rm9200dk.c
@@ -41,8 +41,8 @@
#include <mach/hardware.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-rm9200ek.c b/arch/arm/mach-at91/board-rm9200ek.c
index 8b17dad..5e8a4f7 100644
--- a/arch/arm/mach-at91/board-rm9200ek.c
+++ b/arch/arm/mach-at91/board-rm9200ek.c
@@ -41,8 +41,8 @@
#include <mach/hardware.h>
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-rsi-ews.c b/arch/arm/mach-at91/board-rsi-ews.c
index f6d7f19..e7d0a69 100644
--- a/arch/arm/mach-at91/board-rsi-ews.c
+++ b/arch/arm/mach-at91/board-rsi-ews.c
@@ -28,7 +28,8 @@
#include <linux/gpio.h>
-#include "at91_aic.h"
+#include <mach/at91_aic.h>
+
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-sam9-l9260.c b/arch/arm/mach-at91/board-sam9-l9260.c
index 43ee4dc..2e400cd 100644
--- a/arch/arm/mach-at91/board-sam9-l9260.c
+++ b/arch/arm/mach-at91/board-sam9-l9260.c
@@ -38,8 +38,8 @@
#include <asm/mach/irq.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c
index 0b153c8..66ee7ac 100644
--- a/arch/arm/mach-at91/board-sam9260ek.c
+++ b/arch/arm/mach-at91/board-sam9260ek.c
@@ -43,8 +43,8 @@
#include <mach/hardware.h>
#include <mach/at91sam9_smc.h>
#include <mach/system_rev.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index b446645..515957e 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -47,8 +47,8 @@
#include <mach/hardware.h>
#include <mach/at91sam9_smc.h>
#include <mach/system_rev.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 3284df0..1099272 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -46,8 +46,8 @@
#include <mach/hardware.h>
#include <mach/at91sam9_smc.h>
#include <mach/system_rev.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
index f9cd1f2..9fe718b 100644
--- a/arch/arm/mach-at91/board-sam9g20ek.c
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -45,8 +45,8 @@
#include <mach/at91sam9_smc.h>
#include <mach/system_rev.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c
index 2a94896..1846647 100644
--- a/arch/arm/mach-at91/board-sam9m10g45ek.c
+++ b/arch/arm/mach-at91/board-sam9m10g45ek.c
@@ -44,8 +44,8 @@
#include <mach/at91sam9_smc.h>
#include <mach/system_rev.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c
index aa265dc..623f2d1 100644
--- a/arch/arm/mach-at91/board-sam9rlek.c
+++ b/arch/arm/mach-at91/board-sam9rlek.c
@@ -31,9 +31,9 @@
#include <mach/hardware.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
diff --git a/arch/arm/mach-at91/board-snapper9260.c b/arch/arm/mach-at91/board-snapper9260.c
index 3aaa978..8fef38a 100644
--- a/arch/arm/mach-at91/board-snapper9260.c
+++ b/arch/arm/mach-at91/board-snapper9260.c
@@ -33,8 +33,8 @@
#include <mach/hardware.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-stamp9g20.c b/arch/arm/mach-at91/board-stamp9g20.c
index 869cbec..6bda942 100644
--- a/arch/arm/mach-at91/board-stamp9g20.c
+++ b/arch/arm/mach-at91/board-stamp9g20.c
@@ -26,8 +26,8 @@
#include <asm/mach/arch.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "sam9_smc.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/board-usb-a926x.c b/arch/arm/mach-at91/board-usb-a926x.c
index 2487d94..cedbc66 100644
--- a/arch/arm/mach-at91/board-usb-a926x.c
+++ b/arch/arm/mach-at91/board-usb-a926x.c
@@ -42,8 +42,8 @@
#include <mach/hardware.h>
#include <mach/at91sam9_smc.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "at91_shdwc.h"
#include "board.h"
#include "sam9_smc.h"
diff --git a/arch/arm/mach-at91/board-yl-9200.c b/arch/arm/mach-at91/board-yl-9200.c
index be08377..c61d8c9 100644
--- a/arch/arm/mach-at91/board-yl-9200.c
+++ b/arch/arm/mach-at91/board-yl-9200.c
@@ -46,8 +46,8 @@
#include <mach/at91rm9200_mc.h>
#include <mach/at91_ramc.h>
#include <mach/cpu.h>
+#include <mach/at91_aic.h>
-#include "at91_aic.h"
#include "board.h"
#include "generic.h"
diff --git a/arch/arm/mach-at91/include/mach/at91_aic.h b/arch/arm/mach-at91/include/mach/at91_aic.h
new file mode 100644
index 0000000..eaea661
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/at91_aic.h
@@ -0,0 +1,99 @@
+/*
+ * arch/arm/mach-at91/include/mach/at91_aic.h
+ *
+ * Copyright (C) 2005 Ivan Kokshaysky
+ * Copyright (C) SAN People
+ *
+ * Advanced Interrupt Controller (AIC) - System peripherals registers.
+ * Based on AT91RM9200 datasheet revision E.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef AT91_AIC_H
+#define AT91_AIC_H
+
+#ifndef __ASSEMBLY__
+extern void __iomem *at91_aic_base;
+
+#define at91_aic_read(field) \
+ __raw_readl(at91_aic_base + field)
+
+#define at91_aic_write(field, value) \
+ __raw_writel(value, at91_aic_base + field)
+#else
+.extern at91_aic_base
+#endif
+
+/* Number of irq lines managed by AIC */
+#define NR_AIC_IRQS 32
+#define NR_AIC5_IRQS 128
+
+#define AT91_AIC5_SSR 0x0 /* Source Select Register [AIC5] */
+#define AT91_AIC5_INTSEL_MSK (0x7f << 0) /* Interrupt Line Selection Mask */
+
+#define AT91_AIC_IRQ_MIN_PRIORITY 0
+#define AT91_AIC_IRQ_MAX_PRIORITY 7
+
+#define AT91_AIC_SMR(n) ((n) * 4) /* Source Mode Registers 0-31 */
+#define AT91_AIC5_SMR 0x4 /* Source Mode Register [AIC5] */
+#define AT91_AIC_PRIOR (7 << 0) /* Priority Level */
+#define AT91_AIC_SRCTYPE (3 << 5) /* Interrupt Source Type */
+#define AT91_AIC_SRCTYPE_LOW (0 << 5)
+#define AT91_AIC_SRCTYPE_FALLING (1 << 5)
+#define AT91_AIC_SRCTYPE_HIGH (2 << 5)
+#define AT91_AIC_SRCTYPE_RISING (3 << 5)
+
+#define AT91_AIC_SVR(n) (0x80 + ((n) * 4)) /* Source Vector Registers 0-31 */
+#define AT91_AIC5_SVR 0x8 /* Source Vector Register [AIC5] */
+#define AT91_AIC_IVR 0x100 /* Interrupt Vector Register */
+#define AT91_AIC5_IVR 0x10 /* Interrupt Vector Register [AIC5] */
+#define AT91_AIC_FVR 0x104 /* Fast Interrupt Vector Register */
+#define AT91_AIC5_FVR 0x14 /* Fast Interrupt Vector Register [AIC5] */
+#define AT91_AIC_ISR 0x108 /* Interrupt Status Register */
+#define AT91_AIC5_ISR 0x18 /* Interrupt Status Register [AIC5] */
+#define AT91_AIC_IRQID (0x1f << 0) /* Current Interrupt Identifier */
+
+#define AT91_AIC_IPR 0x10c /* Interrupt Pending Register */
+#define AT91_AIC5_IPR0 0x20 /* Interrupt Pending Register 0 [AIC5] */
+#define AT91_AIC5_IPR1 0x24 /* Interrupt Pending Register 1 [AIC5] */
+#define AT91_AIC5_IPR2 0x28 /* Interrupt Pending Register 2 [AIC5] */
+#define AT91_AIC5_IPR3 0x2c /* Interrupt Pending Register 3 [AIC5] */
+#define AT91_AIC_IMR 0x110 /* Interrupt Mask Register */
+#define AT91_AIC5_IMR 0x30 /* Interrupt Mask Register [AIC5] */
+#define AT91_AIC_CISR 0x114 /* Core Interrupt Status Register */
+#define AT91_AIC5_CISR 0x34 /* Core Interrupt Status Register [AIC5] */
+#define AT91_AIC_NFIQ (1 << 0) /* nFIQ Status */
+#define AT91_AIC_NIRQ (1 << 1) /* nIRQ Status */
+
+#define AT91_AIC_IECR 0x120 /* Interrupt Enable Command Register */
+#define AT91_AIC5_IECR 0x40 /* Interrupt Enable Command Register [AIC5] */
+#define AT91_AIC_IDCR 0x124 /* Interrupt Disable Command Register */
+#define AT91_AIC5_IDCR 0x44 /* Interrupt Disable Command Register [AIC5] */
+#define AT91_AIC_ICCR 0x128 /* Interrupt Clear Command Register */
+#define AT91_AIC5_ICCR 0x48 /* Interrupt Clear Command Register [AIC5] */
+#define AT91_AIC_ISCR 0x12c /* Interrupt Set Command Register */
+#define AT91_AIC5_ISCR 0x4c /* Interrupt Set Command Register [AIC5] */
+#define AT91_AIC_EOICR 0x130 /* End of Interrupt Command Register */
+#define AT91_AIC5_EOICR 0x38 /* End of Interrupt Command Register [AIC5] */
+#define AT91_AIC_SPU 0x134 /* Spurious Interrupt Vector Register */
+#define AT91_AIC5_SPU 0x3c /* Spurious Interrupt Vector Register [AIC5] */
+#define AT91_AIC_DCR 0x138 /* Debug Control Register */
+#define AT91_AIC5_DCR 0x6c /* Debug Control Register [AIC5] */
+#define AT91_AIC_DCR_PROT (1 << 0) /* Protection Mode */
+#define AT91_AIC_DCR_GMSK (1 << 1) /* General Mask */
+
+#define AT91_AIC_FFER 0x140 /* Fast Forcing Enable Register [SAM9 only] */
+#define AT91_AIC5_FFER 0x50 /* Fast Forcing Enable Register [AIC5] */
+#define AT91_AIC_FFDR 0x144 /* Fast Forcing Disable Register [SAM9 only] */
+#define AT91_AIC5_FFDR 0x54 /* Fast Forcing Disable Register [AIC5] */
+#define AT91_AIC_FFSR 0x148 /* Fast Forcing Status Register [SAM9 only] */
+#define AT91_AIC5_FFSR 0x58 /* Fast Forcing Status Register [AIC5] */
+
+void at91_aic_handle_irq(struct pt_regs *regs);
+void at91_aic5_handle_irq(struct pt_regs *regs);
+
+#endif
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c
deleted file mode 100644
index e0ca591..0000000
--- a/arch/arm/mach-at91/irq.c
+++ /dev/null
@@ -1,547 +0,0 @@
-/*
- * linux/arch/arm/mach-at91/irq.c
- *
- * Copyright (C) 2004 SAN People
- * Copyright (C) 2004 ATMEL
- * Copyright (C) Rick Bronson
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/bitmap.h>
-#include <linux/types.h>
-#include <linux/irq.h>
-#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/irqdomain.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-
-#include <mach/hardware.h>
-#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>
-
-#include "at91_aic.h"
-
-void __iomem *at91_aic_base;
-static struct irq_domain *at91_aic_domain;
-static struct device_node *at91_aic_np;
-static unsigned int n_irqs = NR_AIC_IRQS;
-static unsigned long at91_aic_caps = 0;
-
-/* AIC5 introduces a Source Select Register */
-#define AT91_AIC_CAP_AIC5 (1 << 0)
-#define has_aic5() (at91_aic_caps & AT91_AIC_CAP_AIC5)
-
-#ifdef CONFIG_PM
-
-static unsigned long *wakeups;
-static unsigned long *backups;
-
-#define set_backup(bit) set_bit(bit, backups)
-#define clear_backup(bit) clear_bit(bit, backups)
-
-static int at91_aic_pm_init(void)
-{
- backups = kzalloc(BITS_TO_LONGS(n_irqs) * sizeof(*backups), GFP_KERNEL);
- if (!backups)
- return -ENOMEM;
-
- wakeups = kzalloc(BITS_TO_LONGS(n_irqs) * sizeof(*backups), GFP_KERNEL);
- if (!wakeups) {
- kfree(backups);
- return -ENOMEM;
- }
-
- return 0;
-}
-
-static int at91_aic_set_wake(struct irq_data *d, unsigned value)
-{
- if (unlikely(d->hwirq >= n_irqs))
- return -EINVAL;
-
- if (value)
- set_bit(d->hwirq, wakeups);
- else
- clear_bit(d->hwirq, wakeups);
-
- return 0;
-}
-
-void at91_irq_suspend(void)
-{
- int bit = -1;
-
- if (has_aic5()) {
- /* disable enabled irqs */
- while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- }
- /* enable wakeup irqs */
- bit = -1;
- while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IECR, 1);
- }
- } else {
- at91_aic_write(AT91_AIC_IDCR, *backups);
- at91_aic_write(AT91_AIC_IECR, *wakeups);
- }
-}
-
-void at91_irq_resume(void)
-{
- int bit = -1;
-
- if (has_aic5()) {
- /* disable wakeup irqs */
- while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- }
- /* enable irqs disabled for suspend */
- bit = -1;
- while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
- at91_aic_write(AT91_AIC5_SSR,
- bit & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IECR, 1);
- }
- } else {
- at91_aic_write(AT91_AIC_IDCR, *wakeups);
- at91_aic_write(AT91_AIC_IECR, *backups);
- }
-}
-
-#else
-static inline int at91_aic_pm_init(void)
-{
- return 0;
-}
-
-#define set_backup(bit)
-#define clear_backup(bit)
-#define at91_aic_set_wake NULL
-
-#endif /* CONFIG_PM */
-
-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);
-}
-
-asmlinkage void __exception_irq_entry
-at91_aic5_handle_irq(struct pt_regs *regs)
-{
- u32 irqnr;
- u32 irqstat;
-
- irqnr = at91_aic_read(AT91_AIC5_IVR);
- irqstat = at91_aic_read(AT91_AIC5_ISR);
-
- if (!irqstat)
- at91_aic_write(AT91_AIC5_EOICR, 0);
- else
- handle_IRQ(irqnr, regs);
-}
-
-static void at91_aic_mask_irq(struct irq_data *d)
-{
- /* Disable interrupt on AIC */
- at91_aic_write(AT91_AIC_IDCR, 1 << d->hwirq);
- /* Update ISR cache */
- clear_backup(d->hwirq);
-}
-
-static void __maybe_unused at91_aic5_mask_irq(struct irq_data *d)
-{
- /* Disable interrupt on AIC5 */
- at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- /* Update ISR cache */
- clear_backup(d->hwirq);
-}
-
-static void at91_aic_unmask_irq(struct irq_data *d)
-{
- /* Enable interrupt on AIC */
- at91_aic_write(AT91_AIC_IECR, 1 << d->hwirq);
- /* Update ISR cache */
- set_backup(d->hwirq);
-}
-
-static void __maybe_unused at91_aic5_unmask_irq(struct irq_data *d)
-{
- /* Enable interrupt on AIC5 */
- at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IECR, 1);
- /* Update ISR cache */
- set_backup(d->hwirq);
-}
-
-static void at91_aic_eoi(struct irq_data *d)
-{
- /*
- * Mark end-of-interrupt on AIC, the controller doesn't care about
- * the value written. Moreover it's a write-only register.
- */
- at91_aic_write(AT91_AIC_EOICR, 0);
-}
-
-static void __maybe_unused at91_aic5_eoi(struct irq_data *d)
-{
- at91_aic_write(AT91_AIC5_EOICR, 0);
-}
-
-unsigned long *at91_extern_irq;
-
-#define is_extern_irq(hwirq) test_bit(hwirq, at91_extern_irq)
-
-static int at91_aic_compute_srctype(struct irq_data *d, unsigned type)
-{
- int srctype;
-
- switch (type) {
- case IRQ_TYPE_LEVEL_HIGH:
- srctype = AT91_AIC_SRCTYPE_HIGH;
- break;
- case IRQ_TYPE_EDGE_RISING:
- srctype = AT91_AIC_SRCTYPE_RISING;
- break;
- case IRQ_TYPE_LEVEL_LOW:
- if ((d->hwirq == AT91_ID_FIQ) || is_extern_irq(d->hwirq)) /* only supported on external interrupts */
- srctype = AT91_AIC_SRCTYPE_LOW;
- else
- srctype = -EINVAL;
- break;
- case IRQ_TYPE_EDGE_FALLING:
- if ((d->hwirq == AT91_ID_FIQ) || is_extern_irq(d->hwirq)) /* only supported on external interrupts */
- srctype = AT91_AIC_SRCTYPE_FALLING;
- else
- srctype = -EINVAL;
- break;
- default:
- srctype = -EINVAL;
- }
-
- return srctype;
-}
-
-static int at91_aic_set_type(struct irq_data *d, unsigned type)
-{
- unsigned int smr;
- int srctype;
-
- srctype = at91_aic_compute_srctype(d, type);
- if (srctype < 0)
- return srctype;
-
- if (has_aic5()) {
- at91_aic_write(AT91_AIC5_SSR,
- d->hwirq & AT91_AIC5_INTSEL_MSK);
- smr = at91_aic_read(AT91_AIC5_SMR) & ~AT91_AIC_SRCTYPE;
- at91_aic_write(AT91_AIC5_SMR, smr | srctype);
- } else {
- smr = at91_aic_read(AT91_AIC_SMR(d->hwirq))
- & ~AT91_AIC_SRCTYPE;
- at91_aic_write(AT91_AIC_SMR(d->hwirq), smr | srctype);
- }
-
- return 0;
-}
-
-static struct irq_chip at91_aic_chip = {
- .name = "AIC",
- .irq_mask = at91_aic_mask_irq,
- .irq_unmask = at91_aic_unmask_irq,
- .irq_set_type = at91_aic_set_type,
- .irq_set_wake = at91_aic_set_wake,
- .irq_eoi = at91_aic_eoi,
-};
-
-static void __init at91_aic_hw_init(unsigned int spu_vector)
-{
- int i;
-
- /*
- * Perform 8 End Of Interrupt Command to make sure AIC
- * will not Lock out nIRQ
- */
- for (i = 0; i < 8; i++)
- at91_aic_write(AT91_AIC_EOICR, 0);
-
- /*
- * Spurious Interrupt ID in Spurious Vector Register.
- * When there is no current interrupt, the IRQ Vector Register
- * reads the value stored in AIC_SPU
- */
- at91_aic_write(AT91_AIC_SPU, spu_vector);
-
- /* No debugging in AIC: Debug (Protect) Control Register */
- at91_aic_write(AT91_AIC_DCR, 0);
-
- /* Disable and clear all interrupts initially */
- at91_aic_write(AT91_AIC_IDCR, 0xFFFFFFFF);
- at91_aic_write(AT91_AIC_ICCR, 0xFFFFFFFF);
-}
-
-static void __init __maybe_unused at91_aic5_hw_init(unsigned int spu_vector)
-{
- int i;
-
- /*
- * Perform 8 End Of Interrupt Command to make sure AIC
- * will not Lock out nIRQ
- */
- for (i = 0; i < 8; i++)
- at91_aic_write(AT91_AIC5_EOICR, 0);
-
- /*
- * Spurious Interrupt ID in Spurious Vector Register.
- * When there is no current interrupt, the IRQ Vector Register
- * reads the value stored in AIC_SPU
- */
- at91_aic_write(AT91_AIC5_SPU, spu_vector);
-
- /* No debugging in AIC: Debug (Protect) Control Register */
- at91_aic_write(AT91_AIC5_DCR, 0);
-
- /* Disable and clear all interrupts initially */
- for (i = 0; i < n_irqs; i++) {
- at91_aic_write(AT91_AIC5_SSR, i & AT91_AIC5_INTSEL_MSK);
- at91_aic_write(AT91_AIC5_IDCR, 1);
- at91_aic_write(AT91_AIC5_ICCR, 1);
- }
-}
-
-#if defined(CONFIG_OF)
-static unsigned int *at91_aic_irq_priorities;
-
-static int at91_aic_irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- /* Put virq number in Source Vector Register */
- at91_aic_write(AT91_AIC_SVR(hw), virq);
-
- /* Active Low interrupt, with priority */
- at91_aic_write(AT91_AIC_SMR(hw),
- AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]);
-
- irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq);
- set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
-
- return 0;
-}
-
-static int at91_aic5_irq_map(struct irq_domain *h, unsigned int virq,
- irq_hw_number_t hw)
-{
- at91_aic_write(AT91_AIC5_SSR, hw & AT91_AIC5_INTSEL_MSK);
-
- /* Put virq number in Source Vector Register */
- at91_aic_write(AT91_AIC5_SVR, virq);
-
- /* Active Low interrupt, with priority */
- at91_aic_write(AT91_AIC5_SMR,
- AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]);
-
- irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq);
- set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
-
- return 0;
-}
-
-static int at91_aic_irq_domain_xlate(struct irq_domain *d, struct device_node *ctrlr,
- const u32 *intspec, unsigned int intsize,
- irq_hw_number_t *out_hwirq, unsigned int *out_type)
-{
- if (WARN_ON(intsize < 3))
- return -EINVAL;
- if (WARN_ON(intspec[0] >= n_irqs))
- return -EINVAL;
- if (WARN_ON((intspec[2] < AT91_AIC_IRQ_MIN_PRIORITY)
- || (intspec[2] > AT91_AIC_IRQ_MAX_PRIORITY)))
- return -EINVAL;
-
- *out_hwirq = intspec[0];
- *out_type = intspec[1] & IRQ_TYPE_SENSE_MASK;
- at91_aic_irq_priorities[*out_hwirq] = intspec[2];
-
- return 0;
-}
-
-static struct irq_domain_ops at91_aic_irq_ops = {
- .map = at91_aic_irq_map,
- .xlate = at91_aic_irq_domain_xlate,
-};
-
-int __init at91_aic_of_common_init(struct device_node *node,
- struct device_node *parent)
-{
- struct property *prop;
- const __be32 *p;
- u32 val;
-
- at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs)
- * sizeof(*at91_extern_irq), GFP_KERNEL);
- if (!at91_extern_irq)
- return -ENOMEM;
-
- if (at91_aic_pm_init()) {
- kfree(at91_extern_irq);
- return -ENOMEM;
- }
-
- at91_aic_irq_priorities = kzalloc(n_irqs
- * sizeof(*at91_aic_irq_priorities),
- GFP_KERNEL);
- if (!at91_aic_irq_priorities)
- return -ENOMEM;
-
- at91_aic_base = of_iomap(node, 0);
- at91_aic_np = node;
-
- at91_aic_domain = irq_domain_add_linear(at91_aic_np, n_irqs,
- &at91_aic_irq_ops, NULL);
- if (!at91_aic_domain)
- panic("Unable to add AIC irq domain (DT)\n");
-
- of_property_for_each_u32(node, "atmel,external-irqs", prop, p, val) {
- if (val >= n_irqs)
- pr_warn("AIC: external irq %d >= %d skip it\n",
- val, n_irqs);
- else
- set_bit(val, at91_extern_irq);
- }
-
- irq_set_default_host(at91_aic_domain);
-
- return 0;
-}
-
-int __init at91_aic_of_init(struct device_node *node,
- struct device_node *parent)
-{
- int err;
-
- err = at91_aic_of_common_init(node, parent);
- if (err)
- return err;
-
- at91_aic_hw_init(n_irqs);
-
- return 0;
-}
-
-int __init at91_aic5_of_init(struct device_node *node,
- struct device_node *parent)
-{
- int err;
-
- at91_aic_caps |= AT91_AIC_CAP_AIC5;
- n_irqs = NR_AIC5_IRQS;
- at91_aic_chip.irq_ack = at91_aic5_mask_irq;
- at91_aic_chip.irq_mask = at91_aic5_mask_irq;
- at91_aic_chip.irq_unmask = at91_aic5_unmask_irq;
- at91_aic_chip.irq_eoi = at91_aic5_eoi;
- at91_aic_irq_ops.map = at91_aic5_irq_map;
-
- err = at91_aic_of_common_init(node, parent);
- if (err)
- return err;
-
- at91_aic5_hw_init(n_irqs);
-
- return 0;
-}
-#endif
-
-/*
- * Initialize the AIC interrupt controller.
- */
-void __init at91_aic_init(unsigned int *priority, unsigned int ext_irq_mask)
-{
- unsigned int i;
- int irq_base;
-
- at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs)
- * sizeof(*at91_extern_irq), GFP_KERNEL);
-
- if (at91_aic_pm_init() || at91_extern_irq == NULL)
- panic("Unable to allocate bit maps\n");
-
- *at91_extern_irq = ext_irq_mask;
-
- at91_aic_base = ioremap(AT91_AIC, 512);
- if (!at91_aic_base)
- panic("Unable to ioremap AIC registers\n");
-
- /* Add irq domain for AIC */
- irq_base = irq_alloc_descs(-1, 0, n_irqs, 0);
- if (irq_base < 0) {
- WARN(1, "Cannot allocate irq_descs, assuming pre-allocated\n");
- irq_base = 0;
- }
- at91_aic_domain = irq_domain_add_legacy(at91_aic_np, n_irqs,
- irq_base, 0,
- &irq_domain_simple_ops, NULL);
-
- if (!at91_aic_domain)
- panic("Unable to add AIC irq domain\n");
-
- irq_set_default_host(at91_aic_domain);
-
- /*
- * The IVR is used by macro get_irqnr_and_base to read and verify.
- * The irq number is NR_AIC_IRQS when a spurious interrupt has occurred.
- */
- for (i = 0; i < n_irqs; i++) {
- /* Put hardware irq number in Source Vector Register: */
- at91_aic_write(AT91_AIC_SVR(i), NR_IRQS_LEGACY + i);
- /* Active Low interrupt, with the specified priority */
- at91_aic_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
- irq_set_chip_and_handler(NR_IRQS_LEGACY + i, &at91_aic_chip, handle_fasteoi_irq);
- set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
- }
-
- at91_aic_hw_init(n_irqs);
-}
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 530db30..d2a24e8 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -26,9 +26,9 @@
#include <asm/mach/irq.h>
#include <mach/at91_pmc.h>
+#include <mach/at91_aic.h>
#include <mach/cpu.h>
-#include "at91_aic.h"
#include "generic.h"
#include "pm.h"
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index cda4cb5..208b708 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -1,5 +1,6 @@
obj-$(CONFIG_IRQCHIP) += irqchip.o
+obj-$(CONFIG_ARCH_AT91) += irq-at91.o
obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
obj-$(CONFIG_ARCH_EXYNOS) += exynos-combiner.o
obj-$(CONFIG_ARCH_MVEBU) += irq-armada-370-xp.o
diff --git a/drivers/irqchip/irq-at91.c b/drivers/irqchip/irq-at91.c
new file mode 100644
index 0000000..daf2959
--- /dev/null
+++ b/drivers/irqchip/irq-at91.c
@@ -0,0 +1,547 @@
+/*
+ * linux/arch/arm/mach-at91/irq.c
+ *
+ * Copyright (C) 2004 SAN People
+ * Copyright (C) 2004 ATMEL
+ * Copyright (C) Rick Bronson
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/bitmap.h>
+#include <linux/types.h>
+#include <linux/irq.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/irqdomain.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+
+#include <mach/hardware.h>
+#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>
+
+#include <mach/at91_aic.h>
+
+void __iomem *at91_aic_base;
+static struct irq_domain *at91_aic_domain;
+static struct device_node *at91_aic_np;
+static unsigned int n_irqs = NR_AIC_IRQS;
+static unsigned long at91_aic_caps = 0;
+
+/* AIC5 introduces a Source Select Register */
+#define AT91_AIC_CAP_AIC5 (1 << 0)
+#define has_aic5() (at91_aic_caps & AT91_AIC_CAP_AIC5)
+
+#ifdef CONFIG_PM
+
+static unsigned long *wakeups;
+static unsigned long *backups;
+
+#define set_backup(bit) set_bit(bit, backups)
+#define clear_backup(bit) clear_bit(bit, backups)
+
+static int at91_aic_pm_init(void)
+{
+ backups = kzalloc(BITS_TO_LONGS(n_irqs) * sizeof(*backups), GFP_KERNEL);
+ if (!backups)
+ return -ENOMEM;
+
+ wakeups = kzalloc(BITS_TO_LONGS(n_irqs) * sizeof(*backups), GFP_KERNEL);
+ if (!wakeups) {
+ kfree(backups);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+static int at91_aic_set_wake(struct irq_data *d, unsigned value)
+{
+ if (unlikely(d->hwirq >= n_irqs))
+ return -EINVAL;
+
+ if (value)
+ set_bit(d->hwirq, wakeups);
+ else
+ clear_bit(d->hwirq, wakeups);
+
+ return 0;
+}
+
+void at91_irq_suspend(void)
+{
+ int bit = -1;
+
+ if (has_aic5()) {
+ /* disable enabled irqs */
+ while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
+ at91_aic_write(AT91_AIC5_SSR,
+ bit & AT91_AIC5_INTSEL_MSK);
+ at91_aic_write(AT91_AIC5_IDCR, 1);
+ }
+ /* enable wakeup irqs */
+ bit = -1;
+ while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
+ at91_aic_write(AT91_AIC5_SSR,
+ bit & AT91_AIC5_INTSEL_MSK);
+ at91_aic_write(AT91_AIC5_IECR, 1);
+ }
+ } else {
+ at91_aic_write(AT91_AIC_IDCR, *backups);
+ at91_aic_write(AT91_AIC_IECR, *wakeups);
+ }
+}
+
+void at91_irq_resume(void)
+{
+ int bit = -1;
+
+ if (has_aic5()) {
+ /* disable wakeup irqs */
+ while ((bit = find_next_bit(wakeups, n_irqs, bit + 1)) < n_irqs) {
+ at91_aic_write(AT91_AIC5_SSR,
+ bit & AT91_AIC5_INTSEL_MSK);
+ at91_aic_write(AT91_AIC5_IDCR, 1);
+ }
+ /* enable irqs disabled for suspend */
+ bit = -1;
+ while ((bit = find_next_bit(backups, n_irqs, bit + 1)) < n_irqs) {
+ at91_aic_write(AT91_AIC5_SSR,
+ bit & AT91_AIC5_INTSEL_MSK);
+ at91_aic_write(AT91_AIC5_IECR, 1);
+ }
+ } else {
+ at91_aic_write(AT91_AIC_IDCR, *wakeups);
+ at91_aic_write(AT91_AIC_IECR, *backups);
+ }
+}
+
+#else
+static inline int at91_aic_pm_init(void)
+{
+ return 0;
+}
+
+#define set_backup(bit)
+#define clear_backup(bit)
+#define at91_aic_set_wake NULL
+
+#endif /* CONFIG_PM */
+
+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);
+}
+
+asmlinkage void __exception_irq_entry
+at91_aic5_handle_irq(struct pt_regs *regs)
+{
+ u32 irqnr;
+ u32 irqstat;
+
+ irqnr = at91_aic_read(AT91_AIC5_IVR);
+ irqstat = at91_aic_read(AT91_AIC5_ISR);
+
+ if (!irqstat)
+ at91_aic_write(AT91_AIC5_EOICR, 0);
+ else
+ handle_IRQ(irqnr, regs);
+}
+
+static void at91_aic_mask_irq(struct irq_data *d)
+{
+ /* Disable interrupt on AIC */
+ at91_aic_write(AT91_AIC_IDCR, 1 << d->hwirq);
+ /* Update ISR cache */
+ clear_backup(d->hwirq);
+}
+
+static void __maybe_unused at91_aic5_mask_irq(struct irq_data *d)
+{
+ /* Disable interrupt on AIC5 */
+ at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK);
+ at91_aic_write(AT91_AIC5_IDCR, 1);
+ /* Update ISR cache */
+ clear_backup(d->hwirq);
+}
+
+static void at91_aic_unmask_irq(struct irq_data *d)
+{
+ /* Enable interrupt on AIC */
+ at91_aic_write(AT91_AIC_IECR, 1 << d->hwirq);
+ /* Update ISR cache */
+ set_backup(d->hwirq);
+}
+
+static void __maybe_unused at91_aic5_unmask_irq(struct irq_data *d)
+{
+ /* Enable interrupt on AIC5 */
+ at91_aic_write(AT91_AIC5_SSR, d->hwirq & AT91_AIC5_INTSEL_MSK);
+ at91_aic_write(AT91_AIC5_IECR, 1);
+ /* Update ISR cache */
+ set_backup(d->hwirq);
+}
+
+static void at91_aic_eoi(struct irq_data *d)
+{
+ /*
+ * Mark end-of-interrupt on AIC, the controller doesn't care about
+ * the value written. Moreover it's a write-only register.
+ */
+ at91_aic_write(AT91_AIC_EOICR, 0);
+}
+
+static void __maybe_unused at91_aic5_eoi(struct irq_data *d)
+{
+ at91_aic_write(AT91_AIC5_EOICR, 0);
+}
+
+unsigned long *at91_extern_irq;
+
+#define is_extern_irq(hwirq) test_bit(hwirq, at91_extern_irq)
+
+static int at91_aic_compute_srctype(struct irq_data *d, unsigned type)
+{
+ int srctype;
+
+ switch (type) {
+ case IRQ_TYPE_LEVEL_HIGH:
+ srctype = AT91_AIC_SRCTYPE_HIGH;
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ srctype = AT91_AIC_SRCTYPE_RISING;
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ if ((d->hwirq == AT91_ID_FIQ) || is_extern_irq(d->hwirq)) /* only supported on external interrupts */
+ srctype = AT91_AIC_SRCTYPE_LOW;
+ else
+ srctype = -EINVAL;
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ if ((d->hwirq == AT91_ID_FIQ) || is_extern_irq(d->hwirq)) /* only supported on external interrupts */
+ srctype = AT91_AIC_SRCTYPE_FALLING;
+ else
+ srctype = -EINVAL;
+ break;
+ default:
+ srctype = -EINVAL;
+ }
+
+ return srctype;
+}
+
+static int at91_aic_set_type(struct irq_data *d, unsigned type)
+{
+ unsigned int smr;
+ int srctype;
+
+ srctype = at91_aic_compute_srctype(d, type);
+ if (srctype < 0)
+ return srctype;
+
+ if (has_aic5()) {
+ at91_aic_write(AT91_AIC5_SSR,
+ d->hwirq & AT91_AIC5_INTSEL_MSK);
+ smr = at91_aic_read(AT91_AIC5_SMR) & ~AT91_AIC_SRCTYPE;
+ at91_aic_write(AT91_AIC5_SMR, smr | srctype);
+ } else {
+ smr = at91_aic_read(AT91_AIC_SMR(d->hwirq))
+ & ~AT91_AIC_SRCTYPE;
+ at91_aic_write(AT91_AIC_SMR(d->hwirq), smr | srctype);
+ }
+
+ return 0;
+}
+
+static struct irq_chip at91_aic_chip = {
+ .name = "AIC",
+ .irq_mask = at91_aic_mask_irq,
+ .irq_unmask = at91_aic_unmask_irq,
+ .irq_set_type = at91_aic_set_type,
+ .irq_set_wake = at91_aic_set_wake,
+ .irq_eoi = at91_aic_eoi,
+};
+
+static void __init at91_aic_hw_init(unsigned int spu_vector)
+{
+ int i;
+
+ /*
+ * Perform 8 End Of Interrupt Command to make sure AIC
+ * will not Lock out nIRQ
+ */
+ for (i = 0; i < 8; i++)
+ at91_aic_write(AT91_AIC_EOICR, 0);
+
+ /*
+ * Spurious Interrupt ID in Spurious Vector Register.
+ * When there is no current interrupt, the IRQ Vector Register
+ * reads the value stored in AIC_SPU
+ */
+ at91_aic_write(AT91_AIC_SPU, spu_vector);
+
+ /* No debugging in AIC: Debug (Protect) Control Register */
+ at91_aic_write(AT91_AIC_DCR, 0);
+
+ /* Disable and clear all interrupts initially */
+ at91_aic_write(AT91_AIC_IDCR, 0xFFFFFFFF);
+ at91_aic_write(AT91_AIC_ICCR, 0xFFFFFFFF);
+}
+
+static void __init __maybe_unused at91_aic5_hw_init(unsigned int spu_vector)
+{
+ int i;
+
+ /*
+ * Perform 8 End Of Interrupt Command to make sure AIC
+ * will not Lock out nIRQ
+ */
+ for (i = 0; i < 8; i++)
+ at91_aic_write(AT91_AIC5_EOICR, 0);
+
+ /*
+ * Spurious Interrupt ID in Spurious Vector Register.
+ * When there is no current interrupt, the IRQ Vector Register
+ * reads the value stored in AIC_SPU
+ */
+ at91_aic_write(AT91_AIC5_SPU, spu_vector);
+
+ /* No debugging in AIC: Debug (Protect) Control Register */
+ at91_aic_write(AT91_AIC5_DCR, 0);
+
+ /* Disable and clear all interrupts initially */
+ for (i = 0; i < n_irqs; i++) {
+ at91_aic_write(AT91_AIC5_SSR, i & AT91_AIC5_INTSEL_MSK);
+ at91_aic_write(AT91_AIC5_IDCR, 1);
+ at91_aic_write(AT91_AIC5_ICCR, 1);
+ }
+}
+
+#if defined(CONFIG_OF)
+static unsigned int *at91_aic_irq_priorities;
+
+static int at91_aic_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ /* Put virq number in Source Vector Register */
+ at91_aic_write(AT91_AIC_SVR(hw), virq);
+
+ /* Active Low interrupt, with priority */
+ at91_aic_write(AT91_AIC_SMR(hw),
+ AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]);
+
+ irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq);
+ set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
+
+ return 0;
+}
+
+static int at91_aic5_irq_map(struct irq_domain *h, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ at91_aic_write(AT91_AIC5_SSR, hw & AT91_AIC5_INTSEL_MSK);
+
+ /* Put virq number in Source Vector Register */
+ at91_aic_write(AT91_AIC5_SVR, virq);
+
+ /* Active Low interrupt, with priority */
+ at91_aic_write(AT91_AIC5_SMR,
+ AT91_AIC_SRCTYPE_LOW | at91_aic_irq_priorities[hw]);
+
+ irq_set_chip_and_handler(virq, &at91_aic_chip, handle_fasteoi_irq);
+ set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
+
+ return 0;
+}
+
+static int at91_aic_irq_domain_xlate(struct irq_domain *d, struct device_node *ctrlr,
+ const u32 *intspec, unsigned int intsize,
+ irq_hw_number_t *out_hwirq, unsigned int *out_type)
+{
+ if (WARN_ON(intsize < 3))
+ return -EINVAL;
+ if (WARN_ON(intspec[0] >= n_irqs))
+ return -EINVAL;
+ if (WARN_ON((intspec[2] < AT91_AIC_IRQ_MIN_PRIORITY)
+ || (intspec[2] > AT91_AIC_IRQ_MAX_PRIORITY)))
+ return -EINVAL;
+
+ *out_hwirq = intspec[0];
+ *out_type = intspec[1] & IRQ_TYPE_SENSE_MASK;
+ at91_aic_irq_priorities[*out_hwirq] = intspec[2];
+
+ return 0;
+}
+
+static struct irq_domain_ops at91_aic_irq_ops = {
+ .map = at91_aic_irq_map,
+ .xlate = at91_aic_irq_domain_xlate,
+};
+
+int __init at91_aic_of_common_init(struct device_node *node,
+ struct device_node *parent)
+{
+ struct property *prop;
+ const __be32 *p;
+ u32 val;
+
+ at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs)
+ * sizeof(*at91_extern_irq), GFP_KERNEL);
+ if (!at91_extern_irq)
+ return -ENOMEM;
+
+ if (at91_aic_pm_init()) {
+ kfree(at91_extern_irq);
+ return -ENOMEM;
+ }
+
+ at91_aic_irq_priorities = kzalloc(n_irqs
+ * sizeof(*at91_aic_irq_priorities),
+ GFP_KERNEL);
+ if (!at91_aic_irq_priorities)
+ return -ENOMEM;
+
+ at91_aic_base = of_iomap(node, 0);
+ at91_aic_np = node;
+
+ at91_aic_domain = irq_domain_add_linear(at91_aic_np, n_irqs,
+ &at91_aic_irq_ops, NULL);
+ if (!at91_aic_domain)
+ panic("Unable to add AIC irq domain (DT)\n");
+
+ of_property_for_each_u32(node, "atmel,external-irqs", prop, p, val) {
+ if (val >= n_irqs)
+ pr_warn("AIC: external irq %d >= %d skip it\n",
+ val, n_irqs);
+ else
+ set_bit(val, at91_extern_irq);
+ }
+
+ irq_set_default_host(at91_aic_domain);
+
+ return 0;
+}
+
+int __init at91_aic_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ int err;
+
+ err = at91_aic_of_common_init(node, parent);
+ if (err)
+ return err;
+
+ at91_aic_hw_init(n_irqs);
+
+ return 0;
+}
+
+int __init at91_aic5_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ int err;
+
+ at91_aic_caps |= AT91_AIC_CAP_AIC5;
+ n_irqs = NR_AIC5_IRQS;
+ at91_aic_chip.irq_ack = at91_aic5_mask_irq;
+ at91_aic_chip.irq_mask = at91_aic5_mask_irq;
+ at91_aic_chip.irq_unmask = at91_aic5_unmask_irq;
+ at91_aic_chip.irq_eoi = at91_aic5_eoi;
+ at91_aic_irq_ops.map = at91_aic5_irq_map;
+
+ err = at91_aic_of_common_init(node, parent);
+ if (err)
+ return err;
+
+ at91_aic5_hw_init(n_irqs);
+
+ return 0;
+}
+#endif
+
+/*
+ * Initialize the AIC interrupt controller.
+ */
+void __init at91_aic_init(unsigned int *priority, unsigned int ext_irq_mask)
+{
+ unsigned int i;
+ int irq_base;
+
+ at91_extern_irq = kzalloc(BITS_TO_LONGS(n_irqs)
+ * sizeof(*at91_extern_irq), GFP_KERNEL);
+
+ if (at91_aic_pm_init() || at91_extern_irq == NULL)
+ panic("Unable to allocate bit maps\n");
+
+ *at91_extern_irq = ext_irq_mask;
+
+ at91_aic_base = ioremap(AT91_AIC, 512);
+ if (!at91_aic_base)
+ panic("Unable to ioremap AIC registers\n");
+
+ /* Add irq domain for AIC */
+ irq_base = irq_alloc_descs(-1, 0, n_irqs, 0);
+ if (irq_base < 0) {
+ WARN(1, "Cannot allocate irq_descs, assuming pre-allocated\n");
+ irq_base = 0;
+ }
+ at91_aic_domain = irq_domain_add_legacy(at91_aic_np, n_irqs,
+ irq_base, 0,
+ &irq_domain_simple_ops, NULL);
+
+ if (!at91_aic_domain)
+ panic("Unable to add AIC irq domain\n");
+
+ irq_set_default_host(at91_aic_domain);
+
+ /*
+ * The IVR is used by macro get_irqnr_and_base to read and verify.
+ * The irq number is NR_AIC_IRQS when a spurious interrupt has occurred.
+ */
+ for (i = 0; i < n_irqs; i++) {
+ /* Put hardware irq number in Source Vector Register: */
+ at91_aic_write(AT91_AIC_SVR(i), NR_IRQS_LEGACY + i);
+ /* Active Low interrupt, with the specified priority */
+ at91_aic_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
+ irq_set_chip_and_handler(NR_IRQS_LEGACY + i, &at91_aic_chip, handle_fasteoi_irq);
+ set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
+ }
+
+ at91_aic_hw_init(n_irqs);
+}
--
1.7.9.5
--
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