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Blackfin arch: delete old comments and NO_IRQ define

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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2008-11-18 17:48:22 +08:00 committed by Bryan Wu
parent 8a86176c4a
commit 34616c8bbd
1 changed files with 1 additions and 40 deletions
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41
arch/blackfin/include/asm/irq.h
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@ -17,42 +17,10 @@
#ifndef _BFIN_IRQ_H_ #ifndef _BFIN_IRQ_H_
#define _BFIN_IRQ_H_ #define _BFIN_IRQ_H_
/* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/
#include <mach/irq.h> #include <mach/irq.h>
#include <asm/ptrace.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); extern void ack_bad_irq(unsigned int irq);
static __inline__ int irq_canonicalize(int irq) static __inline__ int irq_canonicalize(int irq)
@ -60,13 +28,6 @@ static __inline__ int irq_canonicalize(int irq)
return irq; return irq;
} }
/* count of spurious interrupts */
/* extern volatile unsigned int num_spurious; */
#ifndef NO_IRQ
#define NO_IRQ ((unsigned int)(-1))
#endif
#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1)) #define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1))
#endif /* _BFIN_IRQ_H_ */ #endif /* _BFIN_IRQ_H_ */