diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/arm/mach-clps7500/include/mach/irq.h | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/arm/mach-clps7500/include/mach/irq.h')
-rw-r--r-- | arch/arm/mach-clps7500/include/mach/irq.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-clps7500/include/mach/irq.h b/arch/arm/mach-clps7500/include/mach/irq.h new file mode 100644 index 00000000000..e8da3c58df7 --- /dev/null +++ b/arch/arm/mach-clps7500/include/mach/irq.h @@ -0,0 +1,32 @@ +/* + * arch/arm/mach-clps7500/include/mach/irq.h + * + * Copyright (C) 1996 Russell King + * Copyright (C) 1999, 2001 Nexus Electronics Ltd. + * + * Changelog: + * 10-10-1996 RMK Brought up to date with arch-sa110eval + * 22-08-1998 RMK Restructured IRQ routines + * 11-08-1999 PJB Created ARM7500 version, derived from RiscPC code + */ + +#include <asm/hardware/iomd.h> +#include <asm/io.h> + +static inline int fixup_irq(unsigned int irq) +{ + if (irq == IRQ_ISA) { + int isabits = *((volatile unsigned int *)0xe002b700); + if (isabits == 0) { + printk("Spurious ISA IRQ!\n"); + return irq; + } + irq = IRQ_ISA_BASE; + while (!(isabits & 1)) { + irq++; + isabits >>= 1; + } + } + + return irq; +} |