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Diffstat (limited to 'include/asm-arm/arch-pxa/entry-macro.S')
-rw-r--r-- | include/asm-arm/arch-pxa/entry-macro.S | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/asm-arm/arch-pxa/entry-macro.S b/include/asm-arm/arch-pxa/entry-macro.S new file mode 100644 index 000000000000..2abfc8bb3ee5 --- /dev/null +++ b/include/asm-arm/arch-pxa/entry-macro.S | |||
@@ -0,0 +1,31 @@ | |||
1 | /* | ||
2 | * include/asm-arm/arch-pxa/entry-macro.S | ||
3 | * | ||
4 | * Low-level IRQ helper macros for PXA-based platforms | ||
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 | .macro disable_fiq | ||
12 | .endm | ||
13 | |||
14 | .macro get_irqnr_and_base, irqnr, irqstat, base, tmp | ||
15 | #ifdef CONFIG_PXA27x | ||
16 | mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP | ||
17 | mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR | ||
18 | #else | ||
19 | mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000 | ||
20 | add \base, \base, #0x00d00000 | ||
21 | ldr \irqstat, [\base, #0] @ ICIP | ||
22 | ldr \irqnr, [\base, #4] @ ICMR | ||
23 | #endif | ||
24 | ands \irqnr, \irqstat, \irqnr | ||
25 | beq 1001f | ||
26 | rsb \irqstat, \irqnr, #0 | ||
27 | and \irqstat, \irqstat, \irqnr | ||
28 | clz \irqnr, \irqstat | ||
29 | rsb \irqnr, \irqnr, #(31 - PXA_IRQ_SKIP) | ||
30 | 1001: | ||
31 | .endm | ||