diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-arm/arch-sa1100/entry-macro.S |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-arm/arch-sa1100/entry-macro.S')
-rw-r--r-- | include/asm-arm/arch-sa1100/entry-macro.S | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/include/asm-arm/arch-sa1100/entry-macro.S b/include/asm-arm/arch-sa1100/entry-macro.S new file mode 100644 index 000000000000..51fb50ce1169 --- /dev/null +++ b/include/asm-arm/arch-sa1100/entry-macro.S | |||
@@ -0,0 +1,41 @@ | |||
1 | /* | ||
2 | * include/asm-arm/arch-sa1100/entry-macro.S | ||
3 | * | ||
4 | * Low-level IRQ helper macros for SA1100-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 | mov r4, #0xfa000000 @ ICIP = 0xfa050000 | ||
16 | add r4, r4, #0x00050000 | ||
17 | ldr \irqstat, [r4] @ get irqs | ||
18 | ldr \irqnr, [r4, #4] @ ICMR = 0xfa050004 | ||
19 | ands \irqstat, \irqstat, \irqnr | ||
20 | mov \irqnr, #0 | ||
21 | beq 1001f | ||
22 | tst \irqstat, #0xff | ||
23 | moveq \irqstat, \irqstat, lsr #8 | ||
24 | addeq \irqnr, \irqnr, #8 | ||
25 | tsteq \irqstat, #0xff | ||
26 | moveq \irqstat, \irqstat, lsr #8 | ||
27 | addeq \irqnr, \irqnr, #8 | ||
28 | tsteq \irqstat, #0xff | ||
29 | moveq \irqstat, \irqstat, lsr #8 | ||
30 | addeq \irqnr, \irqnr, #8 | ||
31 | tst \irqstat, #0x0f | ||
32 | moveq \irqstat, \irqstat, lsr #4 | ||
33 | addeq \irqnr, \irqnr, #4 | ||
34 | tst \irqstat, #0x03 | ||
35 | moveq \irqstat, \irqstat, lsr #2 | ||
36 | addeq \irqnr, \irqnr, #2 | ||
37 | tst \irqstat, #0x01 | ||
38 | addeqs \irqnr, \irqnr, #1 | ||
39 | 1001: | ||
40 | .endm | ||
41 | |||