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Open Menu /arch/arm/mach-davinci/include/mach/entry-macro.S 
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/*
 * Low-level IRQ helper macros for TI DaVinci-based platforms
 *
 * Author: Kevin Hilman, MontaVista Software, Inc. <source@mvista.com>
 *
 * 2007 (c) MontaVista Software, Inc. 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.
 */
#include <mach/irqs.h>

		.macro  get_irqnr_preamble, base, tmp
		ldr \base, =davinci_intc_base
		ldr \base, [\base]
		.endm

		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
#if defined(CONFIG_AINTC) && defined(CONFIG_CP_INTC)
		ldr \tmp, =davinci_intc_type
		ldr \tmp, [\tmp]
		cmp \tmp, #DAVINCI_INTC_TYPE_CP_INTC
		beq 1001f
#endif
#if defined(CONFIG_AINTC)
		ldr \tmp, [\base, #0x14]
		movs \tmp, \tmp, lsr #2
		sub \irqnr, \tmp, #1
		b 1002f
#endif
#if defined(CONFIG_CP_INTC)
1001:		ldr \irqnr, [\base, #0x80] /* get irq number */
		mov \tmp, \irqnr, lsr #31
		and \irqnr, \irqnr, #0xff  /* irq is in bits 0-9 */
		and \tmp, \tmp, #0x1
		cmp \tmp, #0x1
#endif
1002:
		.endm