linux/include/asm-arm/arch-aaec2000/entry-macro.S
Bellido Nicolas 038c5b6025 [PATCH] ARM: 2686/2: AAEC-2000 Core support
Patch from Bellido Nicolas

Core support for AAEC-2000 based platforms.
This is an updated version of the previous patch, and takes
into account Russell's comments.
AAED-2000 default configuration will follow as soon
as some problems with the bootloader are sorted out...

Signed-off-by: Nicolas Bellido
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-06-20 18:51:05 +01:00

34 lines
778 B
ArmAsm

/*
* linux/include/asm-arm/arch-aaec2000/entry-macro.S
*
* Low-level IRQ helper for aaec-2000 based platforms
*
* Copyright (c) 2005 Nicolas Bellido Y Ortega
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
.macro disable_fiq
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
mov r4, #0xf8000000
add r4, r4, #0x00000500
mov \base, r4
ldr \irqstat, [\base, #0]
cmp \irqstat, #0
bne 1001f
ldr \irqnr, =NR_IRQS+1
b 1003f
1001: mov \irqnr, #0
1002: ands \tmp, \irqstat, #1
mov \irqstat, \irqstat, LSR #1
add \irqnr, \irqnr, #1
beq 1002b
sub \irqnr, \irqnr, #1
1003:
.endm