UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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

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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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