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[ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs

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ICIP2 is not examined during IRQ entrance, this patch add the
checking if the processor is PXA27x or later, with CoreG bits
in CPUID (Core Generation) > 1

Signed-off-by: eric miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Eric Miao 2007-06-06 06:49:59 +01:00 committed by Russell King
parent 4a3dcd35c8
commit 8118d12494
1 changed files with 23 additions and 5 deletions
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28
include/asm-arm/arch-pxa/entry-macro.S
View File

@ -20,15 +20,33 @@
.endm
.macro get_irqnr_and_base, irqnr, irqstat, base, tmp
#ifdef CONFIG_PXA27x
mrc p6, 0, \irqstat, c0, c0, 0 @ ICIP
mrc p6, 0, \irqnr, c1, c0, 0 @ ICMR
#else
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
#endif
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