diff options
Diffstat (limited to 'include/asm-arm/arch-ebsa110/entry-macro.S')
-rw-r--r-- | include/asm-arm/arch-ebsa110/entry-macro.S | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ebsa110/entry-macro.S b/include/asm-arm/arch-ebsa110/entry-macro.S new file mode 100644 index 000000000000..b12ca04f998c --- /dev/null +++ b/include/asm-arm/arch-ebsa110/entry-macro.S | |||
@@ -0,0 +1,33 @@ | |||
1 | /* | ||
2 | * include/asm-arm/arch-ebsa110/entry-macro.S | ||
3 | * | ||
4 | * Low-level IRQ helper macros for ebsa110 platform. | ||
5 | * | ||
6 | * This file is licensed under the terms of the GNU General Public | ||
7 | * License version 2. This program is licensed "as is" without any | ||
8 | * warranty of any kind, whether express or implied. | ||
9 | */ | ||
10 | |||
11 | |||
12 | |||
13 | #define IRQ_STAT 0xff000000 /* read */ | ||
14 | |||
15 | .macro disable_fiq | ||
16 | .endm | ||
17 | |||
18 | .macro get_irqnr_and_base, irqnr, stat, base, tmp | ||
19 | mov \base, #IRQ_STAT | ||
20 | ldrb \stat, [\base] @ get interrupts | ||
21 | mov \irqnr, #0 | ||
22 | tst \stat, #15 | ||
23 | addeq \irqnr, \irqnr, #4 | ||
24 | moveq \stat, \stat, lsr #4 | ||
25 | tst \stat, #3 | ||
26 | addeq \irqnr, \irqnr, #2 | ||
27 | moveq \stat, \stat, lsr #2 | ||
28 | tst \stat, #1 | ||
29 | addeq \irqnr, \irqnr, #1 | ||
30 | moveq \stat, \stat, lsr #1 | ||
31 | tst \stat, #1 @ bit 0 should be set | ||
32 | .endm | ||
33 | |||