1/*
2 * Low-level IRQ helper macros for Gemini platform.
3 *
4 *  Copyright (C) 2001-2006 Storlink, Corp.
5 *  Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
6 *
7 * This file is licensed under  the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
10 */
11#include <mach/hardware.h>
12
13#define IRQ_STATUS	0x14
14
15	.macro  get_irqnr_preamble, base, tmp
16	.endm
17
18	.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
19	ldr     \irqstat, =IO_ADDRESS(GEMINI_INTERRUPT_BASE + IRQ_STATUS)
20	ldr     \irqnr, [\irqstat]
21	cmp     \irqnr, #0
22	beq     2313f
23	mov     \tmp, \irqnr
24	mov     \irqnr, #0
252312:
26	tst     \tmp, #1
27	bne     2313f
28	add     \irqnr, \irqnr, #1
29	mov     \tmp, \tmp, lsr #1
30	cmp     \irqnr, #31
31	bcc     2312b
322313:
33	.endm
34