Merge branch 'samsung/exynos5' into next/soc2
[linux-2.6.git] / arch / arm / mach-sa1100 / include / mach / entry-macro.S
1 /*
2  * arch/arm/mach-sa1100/include/mach/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  get_irqnr_preamble, base, tmp
12                 mov     \base, #0xfa000000              @ ICIP = 0xfa050000
13                 add     \base, \base, #0x00050000
14                 .endm
15
16                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
17                 ldr     \irqstat, [\base]               @ get irqs
18                 ldr     \irqnr, [\base, #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