/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file COPYING in the main directory of this archive
- * for more details.
+ * Copyright 2004-2009 Analog Devices Inc.
+ * 2003 HuTao
+ * 2002 Arcturus Networks Inc. (www.arcturusnetworks.com
+ * Ted Ma <mated@sympatico.ca>
*
- * Changed by HuTao Apr18, 2003
- *
- * Copyright was missing when I got the code so took from MIPS arch ...MaTed---
- * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle
- * Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001 by Ralf Baechle
- *
- * Adapted for BlackFin (ADI) by Ted Ma <mated@sympatico.ca>
- * Copyright (c) 2002 Arcturus Networks Inc. (www.arcturusnetworks.com)
- * Copyright (c) 2002 Lineo, Inc. <mattw@lineo.com>
+ * Licensed under the GPL-2
*/
#ifndef _BFIN_IRQ_H_
#define _BFIN_IRQ_H_
-#include <mach/irq.h>
-#include <asm/ptrace.h>
-
-/*******************************************************************************
- ***** INTRODUCTION ***********
- * On the Blackfin, the interrupt structure allows remmapping of the hardware
- * levels.
- * - I'm going to assume that the H/W level is going to stay at the default
- * settings. If someone wants to go through and abstart this out, feel free
- * to mod the interrupt numbering scheme.
- * - I'm abstracting the interrupts so that uClinux does not know anything
- * about the H/W levels. If you want to change the H/W AND keep the abstracted
- * levels that uClinux sees, you should be able to do most of it here.
- * - I've left the "abstract" numbering sparce in case someone wants to pull the
- * interrupts apart (just the TX/RX for the various devices)
- *******************************************************************************/
-
-/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/
-
-/*
- * Machine specific interrupt sources.
- *
- * Adding an interrupt service routine for a source with this bit
- * set indicates a special machine specific interrupt source.
- * The machine specific files define these sources.
- *
- * The IRQ_MACHSPEC bit is now gone - the only thing it did was to
- * introduce unnecessary overhead.
- *
- * All interrupt handling is actually machine specific so it is better
- * to use function pointers, as used by the Sparc port, and select the
- * interrupt handling functions when initializing the kernel. This way
- * we save some unnecessary overhead at run-time.
- * 01/11/97 - Jes
- */
-
-extern void ack_bad_irq(unsigned int irq);
-
-static __inline__ int irq_canonicalize(int irq)
-{
- return irq;
-}
+#include <linux/irqflags.h>
-/* count of spurious interrupts */
-/* extern volatile unsigned int num_spurious; */
+/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h> */
+#include <mach/irq.h>
-#ifndef NO_IRQ
-#define NO_IRQ ((unsigned int)(-1))
+#if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE)
+# define NOP_PAD_ANOMALY_05000244 "nop; nop;"
+#else
+# define NOP_PAD_ANOMALY_05000244
#endif
-#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1))
+#define idle_with_irq_disabled() \
+ __asm__ __volatile__( \
+ NOP_PAD_ANOMALY_05000244 \
+ ".align 8;" \
+ "sti %0;" \
+ "idle;" \
+ : \
+ : "d" (bfin_irq_flags) \
+ )
+
+#include <asm-generic/irq.h>
#endif /* _BFIN_IRQ_H_ */