x86: i8259A: remove redundant irq_descinitialization
[wrt350n-kernel.git] / include / asm-arm / arch-netx / entry-macro.S
blob83ad188a08474c4239224526282ef6d6f22deb04
1 /*
2  * include/asm-arm/arch-netx/entry-macro.S
3  *
4  * Low-level IRQ helper macros for Hilscher netX based platforms
5  *
6  * Copyright (C) 2005 Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix
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
10  * as published by the Free Software Foundation.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21 #include <asm/hardware.h>
23                 .macro  disable_fiq
24                 .endm
26                 .macro  get_irqnr_preamble, base, tmp
27                 .endm
29                 .macro  arch_ret_to_user, tmp1, tmp2
30                 .endm
32                 .macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
33                 mov     \base, #io_p2v(0x00100000)
34                 add     \base, \base, #0x000ff000
36                 ldr     \irqstat, [\base, #0]
37                 clz     \irqnr, \irqstat
38                 rsb     \irqnr, \irqnr, #31
39                 cmp     \irqstat, #0
40                 .endm