1/* 2 * linux/include/asm-arm/arch-aaec2000/entry-macro.S 3 * 4 * Low-level IRQ helper for aaec-2000 based platforms 5 * 6 * Copyright (c) 2005 Nicolas Bellido Y Ortega 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11 * 12 */ 13#include <asm/arch/irqs.h> 14 15 .macro disable_fiq 16 .endm 17 18 .macro get_irqnr_preamble, base, tmp 19 .endm 20 21 .macro arch_ret_to_user, tmp1, tmp2 22 .endm 23 24 .macro get_irqnr_and_base, irqnr, irqstat, base, tmp 25 mov r4, #0xf8000000 26 add r4, r4, #0x00000500 27 mov \base, r4 28 ldr \irqstat, [\base, #0] 29 cmp \irqstat, #0 30 bne 1001f 31 ldr \irqnr, =NR_IRQS+1 32 b 1003f 331001: mov \irqnr, #0 341002: ands \tmp, \irqstat, #1 35 mov \irqstat, \irqstat, LSR #1 36 add \irqnr, \irqnr, #1 37 beq 1002b 38 sub \irqnr, \irqnr, #1 391003: 40 .endm 41