Blackfin: allow EVT5 to preempt irqtail prologue (CONFIG_DEBUG_HWERR)

Signed-off-by: Philippe Gerum <[email protected]>
Signed-off-by: Mike Frysinger <[email protected]>

diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
index ae7fc88ab6a0091778f5a8eee916bfe0cc6619b6..29fbf67f47fa093f1e052d3385a0da23969407d8 100644 (file)
--- a/arch/blackfin/mach-common/interrupt.S
+++ b/arch/blackfin/mach-common/interrupt.S
@@ -276,7 +276,15 @@ ENTRY(___ipipe_call_irqtail)
        ( r7:4, p5:3 ) = [sp++];
        rets = [sp++];
 
-       r0 = 0x401f (z);
+#ifdef CONFIG_DEBUG_HWERR
+       /* enable irq14 & hwerr interrupt, until we transition to _evt_evt14 */
+       r0 = (EVT_IVG14 | EVT_IVHW | \
+               EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
+#else
+       /* Only enable irq14 interrupt, until we transition to _evt_evt14 */
+       r0 = (EVT_IVG14 | \
+               EVT_IRPTEN | EVT_EVX | EVT_NMI | EVT_RST | EVT_EMU);
+#endif
        sti r0;
        raise 14;               /* Branches to _evt_evt14 */
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