Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[linux-2.6] / include / asm-arm / arch-iop3xx / entry-macro.S
1 /*
2  * include/asm-arm/arch-iop3xx/entry-macro.S
3  *
4  * Low-level IRQ helper macros for IOP3xx-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 #if defined(CONFIG_ARCH_IOP321)
12                 .macro  disable_fiq
13                 .endm
14
15                 /*
16                  * Note: only deal with normal interrupts, not FIQ
17                  */
18                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
19                 mov     \irqnr, #0
20                 mrc     p6, 0, \irqstat, c8, c0, 0      @ Read IINTSRC
21                 cmp     \irqstat, #0
22                 beq     1001f
23                 clz     \irqnr, \irqstat
24                 mov     \base, #31
25                 subs    \irqnr,\base,\irqnr
26                 add     \irqnr,\irqnr,#IRQ_IOP321_DMA0_EOT
27 1001:
28                 .endm
29
30 #elif defined(CONFIG_ARCH_IOP331)
31                 .macro  disable_fiq
32                 .endm
33
34                 /*
35                  * Note: only deal with normal interrupts, not FIQ
36                  */
37                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
38                 mov     \irqnr, #0
39                 mrc     p6, 0, \irqstat, c4, c0, 0      @ Read IINTSRC0
40                 cmp     \irqstat, #0
41                 bne     1002f
42                 mrc     p6, 0, \irqstat, c5, c0, 0      @ Read IINTSRC1
43                 cmp     \irqstat, #0
44                 beq     1001f
45                 clz     \irqnr, \irqstat
46                 rsbs    \irqnr,\irqnr,#31   @ recommend by RMK
47                 add     \irqnr,\irqnr,#IRQ_IOP331_XINT8
48                 b       1001f
49 1002:   clz     \irqnr, \irqstat
50                 rsbs    \irqnr,\irqnr,#31   @ recommend by RMK
51                 add     \irqnr,\irqnr,#IRQ_IOP331_DMA0_EOT
52 1001:
53                 .endm
54
55 #endif
56