linux/arch/arm/mach-lpc32xx/include/mach/entry-macro.S
Rob Herring 230f984662 ARM: remove disable_fiq and arch_ret_to_user macros
Now that most platforms don't need disable_fiq and arch_ret_to_user
macros, we can remove the empty macros or empty entry-macro.S files.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
2012-02-21 17:05:18 -06:00

38 lines
1.1 KiB
ArmAsm

/*
* arch/arm/mach-lpc32xx/include/mach/entry-macro.S
*
* Author: Kevin Wells <kevin.wells@nxp.com>
*
* Copyright (C) 2010 NXP Semiconductors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <mach/hardware.h>
#include <mach/platform.h>
#define LPC32XX_INTC_MASKED_STATUS_OFS 0x8
.macro get_irqnr_preamble, base, tmp
ldr \base, =IO_ADDRESS(LPC32XX_MIC_BASE)
.endm
/*
* Return IRQ number in irqnr. Also return processor Z flag status in CPSR
* as set if an interrupt is pending.
*/
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
ldr \irqstat, [\base, #LPC32XX_INTC_MASKED_STATUS_OFS]
clz \irqnr, \irqstat
rsb \irqnr, \irqnr, #31
teq \irqstat, #0
.endm