aboutsummaryrefslogtreecommitdiff
path: root/include/asm-arm/arch-ebsa110/entry-macro.S
blob: aa23c5d6c69e4b4b31daf9ca1726f53daf10dcc6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/*
 * include/asm-arm/arch-ebsa110/entry-macro.S
 *
 * Low-level IRQ helper macros for ebsa110 platform.
 *
 * This file is licensed under  the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */



#define IRQ_STAT		0xff000000	/* read */

	.macro	disable_fiq
	.endm

	.macro  get_irqnr_preamble, base, tmp
	.endm

	.macro  arch_ret_to_user, tmp1, tmp2
	.endm

	.macro	get_irqnr_and_base, irqnr, stat, base, tmp
	mov	\base, #IRQ_STAT
	ldrb	\stat, [\base]			@ get interrupts
	mov	\irqnr, #0
	tst	\stat, #15
	addeq	\irqnr, \irqnr, #4
	moveq	\stat, \stat, lsr #4
	tst	\stat, #3
	addeq	\irqnr, \irqnr, #2
	moveq	\stat, \stat, lsr #2
	tst	\stat, #1
	addeq	\irqnr, \irqnr, #1
	moveq	\stat, \stat, lsr #1
	tst	\stat, #1			@ bit 0 should be set
	.endm