Merge branch 'next/soc-exynos5250-arch' of git://git.kernel.org/pub/scm/linux/kernel...
[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  disable_fiq
12                 .endm
13
14                 .macro  get_irqnr_preamble, base, tmp
15                 mov     \base, #0xfa000000              @ ICIP = 0xfa050000
16                 add     \base, \base, #0x00050000
17                 .endm
18
19                 .macro  arch_ret_to_user, tmp1, tmp2
20                 .endm
21
22                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
23                 ldr     \irqstat, [\base]               @ get irqs
24                 ldr     \irqnr, [\base, #4]             @ ICMR = 0xfa050004
25                 ands    \irqstat, \irqstat, \irqnr
26                 mov     \irqnr, #0
27                 beq     1001f
28                 tst     \irqstat, #0xff
29                 moveq   \irqstat, \irqstat, lsr #8
30                 addeq   \irqnr, \irqnr, #8
31                 tsteq   \irqstat, #0xff
32                 moveq   \irqstat, \irqstat, lsr #8
33                 addeq   \irqnr, \irqnr, #8
34                 tsteq   \irqstat, #0xff
35                 moveq   \irqstat, \irqstat, lsr #8
36                 addeq   \irqnr, \irqnr, #8
37                 tst     \irqstat, #0x0f
38                 moveq   \irqstat, \irqstat, lsr #4
39                 addeq   \irqnr, \irqnr, #4
40                 tst     \irqstat, #0x03
41                 moveq   \irqstat, \irqstat, lsr #2
42                 addeq   \irqnr, \irqnr, #2
43                 tst     \irqstat, #0x01
44                 addeqs  \irqnr, \irqnr, #1
45 1001:
46                 .endm
47