2 * arch/arm/mach-lpc32xx/include/mach/entry-macro.S
4 * Author: Kevin Wells <kevin.wells@nxp.com>
6 * Copyright (C) 2010 NXP Semiconductors
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
19 #include <mach/hardware.h>
20 #include <mach/platform.h>
22 #define LPC32XX_INTC_MASKED_STATUS_OFS 0x8
27 .macro get_irqnr_preamble, base, tmp
28 ldr \base, =IO_ADDRESS(LPC32XX_MIC_BASE)
31 .macro arch_ret_to_user, tmp1, tmp2
35 * Return IRQ number in irqnr. Also return processor Z flag status in CPSR
36 * as set if an interrupt is pending.
38 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp
39 ldr \irqstat, [\base, #LPC32XX_INTC_MASKED_STATUS_OFS]
41 rsb \irqnr, \irqnr, #31