diff options
Diffstat (limited to 'include/asm-arm/arch-aaec2000/entry-macro.S')
-rw-r--r-- | include/asm-arm/arch-aaec2000/entry-macro.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-arm/arch-aaec2000/entry-macro.S b/include/asm-arm/arch-aaec2000/entry-macro.S new file mode 100644 index 000000000000..df31313ab07e --- /dev/null +++ b/include/asm-arm/arch-aaec2000/entry-macro.S | |||
@@ -0,0 +1,33 @@ | |||
1 | /* | ||
2 | * linux/include/asm-arm/arch-aaec2000/entry-macro.S | ||
3 | * | ||
4 | * Low-level IRQ helper for aaec-2000 based platforms | ||
5 | * | ||
6 | * Copyright (c) 2005 Nicolas Bellido Y Ortega | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License version 2 as | ||
10 | * published by the Free Software Foundation. | ||
11 | * | ||
12 | */ | ||
13 | |||
14 | .macro disable_fiq | ||
15 | .endm | ||
16 | |||
17 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
18 | mov r4, #0xf8000000 | ||
19 | add r4, r4, #0x00000500 | ||
20 | mov \base, r4 | ||
21 | ldr \irqstat, [\base, #0] | ||
22 | cmp \irqstat, #0 | ||
23 | bne 1001f | ||
24 | ldr \irqnr, =NR_IRQS+1 | ||
25 | b 1003f | ||
26 | 1001: mov \irqnr, #0 | ||
27 | 1002: ands \tmp, \irqstat, #1 | ||
28 | mov \irqstat, \irqstat, LSR #1 | ||
29 | add \irqnr, \irqnr, #1 | ||
30 | beq 1002b | ||
31 | sub \irqnr, \irqnr, #1 | ||
32 | 1003: | ||
33 | .endm | ||