36 lines
892 B
ArmAsm
36 lines
892 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_preamble, base, tmp
|
|
.endm
|
|
|
|
.macro arch_ret_to_user, tmp1, tmp2
|
|
.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
|
|
|