diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-10-07 14:08:56 -0400 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-10-07 14:08:56 -0400 |
commit | 5a89770daad83df74d77a8d34a1ffaedae565ce9 (patch) | |
tree | 0d8ef70293a6ef969ba8b7718e59608337643d40 /arch/blackfin/include/asm/irq.h | |
parent | c46c948260f41af18b277c1eb1895d788d3605dc (diff) | |
parent | af7c951d76708c61b862463d579d76be757130bf (diff) |
Merge branches 'pxa-core' and 'pxa-machines' into pxa-all
Conflicts:
arch/arm/mach-pxa/Kconfig
arch/arm/mach-pxa/pxa25x.c
arch/arm/mach-pxa/pxa27x.c
Diffstat (limited to 'arch/blackfin/include/asm/irq.h')
-rw-r--r-- | arch/blackfin/include/asm/irq.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h new file mode 100644 index 000000000000..89f59e18af93 --- /dev/null +++ b/arch/blackfin/include/asm/irq.h | |||
@@ -0,0 +1,72 @@ | |||
1 | /* | ||
2 | * This file is subject to the terms and conditions of the GNU General Public | ||
3 | * License. See the file COPYING in the main directory of this archive | ||
4 | * for more details. | ||
5 | * | ||
6 | * Changed by HuTao Apr18, 2003 | ||
7 | * | ||
8 | * Copyright was missing when I got the code so took from MIPS arch ...MaTed--- | ||
9 | * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle | ||
10 | * Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001 by Ralf Baechle | ||
11 | * | ||
12 | * Adapted for BlackFin (ADI) by Ted Ma <mated@sympatico.ca> | ||
13 | * Copyright (c) 2002 Arcturus Networks Inc. (www.arcturusnetworks.com) | ||
14 | * Copyright (c) 2002 Lineo, Inc. <mattw@lineo.com> | ||
15 | */ | ||
16 | |||
17 | #ifndef _BFIN_IRQ_H_ | ||
18 | #define _BFIN_IRQ_H_ | ||
19 | |||
20 | #include <mach/irq.h> | ||
21 | #include <asm/ptrace.h> | ||
22 | |||
23 | /******************************************************************************* | ||
24 | ***** INTRODUCTION *********** | ||
25 | * On the Blackfin, the interrupt structure allows remmapping of the hardware | ||
26 | * levels. | ||
27 | * - I'm going to assume that the H/W level is going to stay at the default | ||
28 | * settings. If someone wants to go through and abstart this out, feel free | ||
29 | * to mod the interrupt numbering scheme. | ||
30 | * - I'm abstracting the interrupts so that uClinux does not know anything | ||
31 | * about the H/W levels. If you want to change the H/W AND keep the abstracted | ||
32 | * levels that uClinux sees, you should be able to do most of it here. | ||
33 | * - I've left the "abstract" numbering sparce in case someone wants to pull the | ||
34 | * interrupts apart (just the TX/RX for the various devices) | ||
35 | *******************************************************************************/ | ||
36 | |||
37 | /* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/ | ||
38 | |||
39 | /* | ||
40 | * Machine specific interrupt sources. | ||
41 | * | ||
42 | * Adding an interrupt service routine for a source with this bit | ||
43 | * set indicates a special machine specific interrupt source. | ||
44 | * The machine specific files define these sources. | ||
45 | * | ||
46 | * The IRQ_MACHSPEC bit is now gone - the only thing it did was to | ||
47 | * introduce unnecessary overhead. | ||
48 | * | ||
49 | * All interrupt handling is actually machine specific so it is better | ||
50 | * to use function pointers, as used by the Sparc port, and select the | ||
51 | * interrupt handling functions when initializing the kernel. This way | ||
52 | * we save some unnecessary overhead at run-time. | ||
53 | * 01/11/97 - Jes | ||
54 | */ | ||
55 | |||
56 | extern void ack_bad_irq(unsigned int irq); | ||
57 | |||
58 | static __inline__ int irq_canonicalize(int irq) | ||
59 | { | ||
60 | return irq; | ||
61 | } | ||
62 | |||
63 | /* count of spurious interrupts */ | ||
64 | /* extern volatile unsigned int num_spurious; */ | ||
65 | |||
66 | #ifndef NO_IRQ | ||
67 | #define NO_IRQ ((unsigned int)(-1)) | ||
68 | #endif | ||
69 | |||
70 | #define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1)) | ||
71 | |||
72 | #endif /* _BFIN_IRQ_H_ */ | ||