Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * include/asm-arm/arch-cl7500/irq.h | |
3 | * | |
4 | * Copyright (C) 1996 Russell King | |
5 | * Copyright (C) 1999, 2001 Nexus Electronics Ltd. | |
6 | * | |
7 | * Changelog: | |
8 | * 10-10-1996 RMK Brought up to date with arch-sa110eval | |
9 | * 22-08-1998 RMK Restructured IRQ routines | |
10 | * 11-08-1999 PJB Created ARM7500 version, derived from RiscPC code | |
11 | */ | |
12 | ||
13 | #include <asm/hardware/iomd.h> | |
14 | #include <asm/io.h> | |
15 | ||
16 | static inline int fixup_irq(unsigned int irq) | |
17 | { | |
18 | if (irq == IRQ_ISA) { | |
19 | int isabits = *((volatile unsigned int *)0xe002b700); | |
20 | if (isabits == 0) { | |
21 | printk("Spurious ISA IRQ!\n"); | |
22 | return irq; | |
23 | } | |
24 | irq = IRQ_ISA_BASE; | |
25 | while (!(isabits & 1)) { | |
26 | irq++; | |
27 | isabits >>= 1; | |
28 | } | |
29 | } | |
30 | ||
31 | return irq; | |
32 | } |