[ARM] pxa: fix interrupts number calculation when CONFIG_PXA_HAVE_ISA_IRQS=y

Commit d2c37068429b29d6549cf3486fc84b836689e122 ([ARM] pxa:
initialize default interrupt priority and use ICHP for IRQ handling)
broke ISA interrupt support on pxa27x/3xx.

In such a case, PXA_IRQ(0) != 0, and the IRQ number computed from
ICHP must be offset by PXA_IRQ(0).

Tested on an Arcom Zeus (pxa270), with both CONFIG_PXA_HAVE_ISA_IRQS
enabled and disabled.

Signed-off-by: Marc Zyngier <[email protected]>
Tested-by: Haojian Zhuang <[email protected]>
Signed-off-by: Eric Miao <[email protected]>

diff --git a/arch/arm/mach-pxa/include/mach/entry-macro.S b/arch/arm/mach-pxa/include/mach/entry-macro.S
index 241880608ac64d3293c8d1e2e190572589f7878d..a73bc86a3c263d238e2a7b7a82d297748857b9ce 100644 (file)
--- a/arch/arm/mach-pxa/include/mach/entry-macro.S
+++ b/arch/arm/mach-pxa/include/mach/entry-macro.S
@@ -46,5 +46,6 @@
                beq     1001f
                bic     \irqstat, \irqstat, #0x80000000
                mov     \irqnr, \irqstat, lsr #16
+               add     \irqnr, \irqnr, #(PXA_IRQ(0))
 1001:
                .endm