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-rw-r--r--arch/arm/mach-ebsa110/include/mach/entry-macro.S39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-ebsa110/include/mach/entry-macro.S b/arch/arm/mach-ebsa110/include/mach/entry-macro.S
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index 00000000000..cc3e5992f6b
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1/*
2 * arch/arm/mach-ebsa110/include/mach/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_preamble, base, tmp
19 mov \base, #IRQ_STAT
20 .endm
21
22 .macro arch_ret_to_user, tmp1, tmp2
23 .endm
24
25 .macro get_irqnr_and_base, irqnr, stat, base, tmp
26 ldrb \stat, [\base] @ get interrupts
27 mov \irqnr, #0
28 tst \stat, #15
29 addeq \irqnr, \irqnr, #4
30 moveq \stat, \stat, lsr #4
31 tst \stat, #3
32 addeq \irqnr, \irqnr, #2
33 moveq \stat, \stat, lsr #2
34 tst \stat, #1
35 addeq \irqnr, \irqnr, #1
36 moveq \stat, \stat, lsr #1
37 tst \stat, #1 @ bit 0 should be set
38 .endm
39