linux/arch/arm/mach-gemini/include/mach/entry-macro.S
Paulius Zaleckas 59d3a193f1 ARM: Add Gemini architecture v3
Adds support for Cortina Systems Gemini family CPUs:
http://www.cortina-systems.com/products/category/18

v3:
- fixed __io(a) to be defined as __typesafe_io(a)

v2:
- #include <asm/io.h> -> <linux/io.h>
- remove asm/system.h include
- revorked mm.c to use named initializers
- removed "empty" dma.h
- updated copyrights

Signed-off-by: Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
2009-03-26 10:06:08 +02:00

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