|
|
|
/*
|
|
|
|
* include/asm-arm/arch-iop3xx/entry-macro.S
|
|
|
|
*
|
|
|
|
* Low-level IRQ helper macros for IOP3xx-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/arch/irqs.h>
|
|
|
|
|
|
|
|
#if defined(CONFIG_ARCH_IOP321)
|
|
|
|
.macro disable_fiq
|
|
|
|
.endm
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Note: only deal with normal interrupts, not FIQ
|
|
|
|
*/
|
|
|
|
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
|
|
|
|
mov \irqnr, #0
|
|
|
|
mrc p6, 0, \irqstat, c8, c0, 0 @ Read IINTSRC
|
|
|
|
cmp \irqstat, #0
|
|
|
|
beq 1001f
|
|
|
|
clz \irqnr, \irqstat
|
|
|
|
mov \base, #31
|
|
|
|
subs \irqnr,\base,\irqnr
|
|
|
|
add \irqnr,\irqnr,#IRQ_IOP321_DMA0_EOT
|
|
|
|
1001:
|
|
|
|
.endm
|
|
|
|
|
|
|
|
#elif defined(CONFIG_ARCH_IOP331)
|
|
|
|
.macro disable_fiq
|
|
|
|
.endm
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Note: only deal with normal interrupts, not FIQ
|
|
|
|
*/
|
|
|
|
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
|
|
|
|
mov \irqnr, #0
|
|
|
|
mrc p6, 0, \irqstat, c4, c0, 0 @ Read IINTSRC0
|
|
|
|
cmp \irqstat, #0
|
|
|
|
bne 1002f
|
|
|
|
mrc p6, 0, \irqstat, c5, c0, 0 @ Read IINTSRC1
|
|
|
|
cmp \irqstat, #0
|
|
|
|
beq 1001f
|
|
|
|
clz \irqnr, \irqstat
|
|
|
|
rsbs \irqnr,\irqnr,#31 @ recommend by RMK
|
|
|
|
add \irqnr,\irqnr,#IRQ_IOP331_XINT8
|
|
|
|
b 1001f
|
|
|
|
1002: clz \irqnr, \irqstat
|
|
|
|
rsbs \irqnr,\irqnr,#31 @ recommend by RMK
|
|
|
|
add \irqnr,\irqnr,#IRQ_IOP331_DMA0_EOT
|
|
|
|
1001:
|
|
|
|
.endm
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|