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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.S41
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
391001:
40 .endm
41