[PATCH 4/4] powerpc/fsl-book3e: enable the external_input_edge exception handler

[Kevin Hao]

Enable the external_input_edge exception handler for the fsl ppc64
board when external proxy is enabled. This will leave the irq still
hard enabled when a interrupt occurs with irq soft disabled.

Signed-off-by: Kevin Hao <haokexin at gmail.com>
---
 arch/powerpc/platforms/85xx/corenet_ds.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/85xx/corenet_ds.c b/arch/powerpc/platforms/85xx/corenet_ds.c
index c59c617..ad688bf 100644
--- a/arch/powerpc/platforms/85xx/corenet_ds.c
+++ b/arch/powerpc/platforms/85xx/corenet_ds.c
@@ -25,6 +25,9 @@
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/mpic.h>
+#ifdef CONFIG_PPC64
+#include <asm/code-patching.h>
+#endif
 
 #include <linux/of_platform.h>
 #include <sysdev/fsl_soc.h>
@@ -37,8 +40,12 @@ void __init corenet_ds_pic_init(void)
 	unsigned int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU |
 		MPIC_NO_RESET;
 
-	if (ppc_md.get_irq == mpic_get_coreint_irq)
+	if (ppc_md.get_irq == mpic_get_coreint_irq) {
 		flags |= MPIC_ENABLE_COREINT;
+#ifdef CONFIG_PPC64
+		patch_exception(0x0a0, exc_external_input_edge_book3e);
+#endif
+	}
 
 	mpic = mpic_alloc(NULL, 0, flags, 0, 512, " OpenPIC  ");
 	BUG_ON(mpic == NULL);
-- 
1.8.1.4