diff options
| author | Eric Miao <eric.y.miao@gmail.com> | 2007-06-06 09:49:59 +0400 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-07-12 17:28:14 +0400 |
| commit | 8118d124949ed8ff1a450e0c0d13cfab8c2ff7aa (patch) | |
| tree | 1fc7460f5e16ed40cc857a015810e37c79364e21 /include/asm-arm | |
| parent | 4a3dcd35c82a2a25b2832502290e1a3f1571e9ef (diff) | |
| download | linux-8118d124949ed8ff1a450e0c0d13cfab8c2ff7aa.tar.xz | |
[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>
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/arch-pxa/entry-macro.S | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/include/asm-arm/arch-pxa/entry-macro.S b/include/asm-arm/arch-pxa/entry-macro.S index b7bf0dd4fa44..b7e730851461 100644 --- a/include/asm-arm/arch-pxa/entry-macro.S +++ b/include/asm-arm/arch-pxa/entry-macro.S @@ -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 |