mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 20:32:22 +00:00
40 lines
920 B
ArmAsm
40 lines
920 B
ArmAsm
|
/*
|
||
|
|
* Low-level IRQ helper macros for Gemini platform.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2001-2006 Storlink, Corp.
|
||
|
|
* Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
|
||
|
|
*
|
||
|
|
* 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/hardware.h>
|
||
|
|
|
||
|
|
#define IRQ_STATUS 0x14
|
||
|
|
|
||
|
|
.macro disable_fiq
|
||
|
|
.endm
|
||
|
|
|
||
|
|
.macro get_irqnr_preamble, base, tmp
|
||
|
|
.endm
|
||
|
|
|
||
|
|
.macro arch_ret_to_user, tmp1, tmp2
|
||
|
|
.endm
|
||
|
|
|
||
|
|
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
|
||
|
|
ldr \irqstat, =IO_ADDRESS(GEMINI_INTERRUPT_BASE + IRQ_STATUS)
|
||
|
|
ldr \irqnr, [\irqstat]
|
||
|
|
cmp \irqnr, #0
|
||
|
|
beq 2313f
|
||
|
|
mov \tmp, \irqnr
|
||
|
|
mov \irqnr, #0
|
||
|
|
2312:
|
||
|
|
tst \tmp, #1
|
||
|
|
bne 2313f
|
||
|
|
add \irqnr, \irqnr, #1
|
||
|
|
mov \tmp, \tmp, lsr #1
|
||
|
|
cmp \irqnr, #31
|
||
|
|
bcc 2312b
|
||
|
|
2313:
|
||
|
|
.endm
|