1/*
2 * Low-level IRQ helper macros for TI DaVinci-based platforms
3 *
4 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
5 *
6 * 2007 (c) MontaVista Software, Inc. This file is licensed under
7 * the terms of the GNU General Public License version 2. This program
8 * is licensed "as is" without any warranty of any kind, whether express
9 * or implied.
10 */
11#include <mach/irqs.h>
12
13		.macro  get_irqnr_preamble, base, tmp
14		ldr \base, =davinci_intc_base
15		ldr \base, [\base]
16		.endm
17
18		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
19#if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC)
20		ldr \tmp, =davinci_intc_type
21		ldr \tmp, [\tmp]
22		cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC
23		beq 1001f
24#endif
25#if defined(CONFIG_AINTC)
26		ldr \tmp, [\base, #0x14]
27		movs \tmp, \tmp, lsr #2
28		sub \irqnr, \tmp, #1
29		b 1002f
30#endif
31#if defined(CONFIG_CP_INTC)
321001:		ldr \irqnr, [\base, #0x80] /* get irq number */
33		and \irqnr, \irqnr, #0xff  /* irq is in bits 0-9 */
34		mov \tmp, \irqnr, lsr #3
35		and \tmp, \tmp, #0xfc
36		add \tmp, \tmp, #0x280 /* get the register offset */
37		ldr \irqstat, [\base, \tmp] /* get the intc status */
38		cmp \irqstat, #0x0
39#endif
401002:
41		.endm
42