linux/include/asm-arm/arch-l7200/entry-macro.S
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00

30 lines
795 B
ArmAsm

/*
* include/asm-arm/arch-l7200/entry-macro.S
*
* Low-level IRQ helper macros for L7200-based platforms
*
* 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 <asm/hardware.h>
.equ irq_base_addr, IO_BASE_2
.macro disable_fiq
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
mov \irqstat, #irq_base_addr @ Virt addr IRQ regs
add \irqstat, \irqstat, #0x00001000 @ Status reg
ldr \irqstat, [\irqstat, #0] @ get interrupts
mov \irqnr, #0
1001: tst \irqstat, #1
addeq \irqnr, \irqnr, #1
moveq \irqstat, \irqstat, lsr #1
tsteq \irqnr, #32
beq 1001b
teq \irqnr, #32
.endm