58 lines
1.3 KiB
ArmAsm
58 lines
1.3 KiB
ArmAsm
/*
|
|
* include/asm-arm/arch-pxa/entry-macro.S
|
|
*
|
|
* Low-level IRQ helper macros for PXA-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>
|
|
#include <asm/arch/irqs.h>
|
|
|
|
.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
|
|
mrc p15, 0, \tmp, c0, c0, 0 @ CPUID
|
|
mov \tmp, \tmp, lsr #13
|
|
and \tmp, \tmp, #0x7 @ Core G
|
|
cmp \tmp, #1
|
|
bhi 1004f
|
|
|
|
mov \base, #io_p2v(0x40000000) @ IIR Ctl = 0x40d00000
|
|
add \base, \base, #0x00d00000
|
|
ldr \irqstat, [\base, #0] @ ICIP
|
|
ldr \irqnr, [\base, #4] @ ICMR
|
|
b 1002f
|
|
|
|
1004:
|
|
mrc p6, 0, \irqstat, c6, c0, 0 @ ICIP2
|
|
mrc p6, 0, \irqnr, c7, c0, 0 @ ICMR2
|
|
ands \irqstat, \irqstat, \irqnr
|
|
beq 1003f
|
|
rsb \irqstat, \irqnr, #0
|
|
and \irqstat, \irqstat, \irqnr
|
|
clz \irqnr, \irqstat
|
|
rsb \irqnr, \irqnr, #31
|
|
add \irqnr, \irqnr, #32
|
|
b 1001f
|
|
1003:
|
|
mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP
|
|
mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR
|
|
1002:
|
|
ands \irqnr, \irqstat, \irqnr
|
|
beq 1001f
|
|
rsb \irqstat, \irqnr, #0
|
|
and \irqstat, \irqstat, \irqnr
|
|
clz \irqnr, \irqstat
|
|
rsb \irqnr, \irqnr, #31
|
|
1001:
|
|
.endm
|