diff options
Diffstat (limited to 'arch/blackfin/include/asm/irq.h')
| -rw-r--r-- | arch/blackfin/include/asm/irq.h | 83 |
1 files changed, 26 insertions, 57 deletions
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h index 89f59e18af9..89de539ed01 100644 --- a/arch/blackfin/include/asm/irq.h +++ b/arch/blackfin/include/asm/irq.h @@ -1,72 +1,41 @@ /* - * 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 - */ +#include <linux/irqflags.h> -extern void ack_bad_irq(unsigned int irq); +/* IRQs that may be used by external irq_chip controllers */ +#define NR_SPARE_IRQS 32 -static __inline__ int irq_canonicalize(int irq) -{ - return irq; -} +#include <mach/anomaly.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_ */ |