microblaze: Fix unaligned exception for little endian platform
Half word unaligned accesses need to be fixed.
Signed-off-by: Michal Simek <monstr@monstr.eu>
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
index 7811954..25f6e07 100644
--- a/arch/microblaze/kernel/hw_exception_handler.S
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -945,11 +945,20 @@
store4: sbi r3, r4, 3; /* Delay slot */
ex_shw_vm:
/* Store the lower half-word, byte-by-byte into destination address */
+#ifdef __MICROBLAZEEL__
+ lbui r3, r5, 0;
+store5: sbi r3, r4, 0;
+ lbui r3, r5, 1;
+ brid ret_from_exc;
+store6: sbi r3, r4, 1; /* Delay slot */
+#else
lbui r3, r5, 2;
store5: sbi r3, r4, 0;
lbui r3, r5, 3;
brid ret_from_exc;
store6: sbi r3, r4, 1; /* Delay slot */
+#endif
+
ex_sw_end_vm: /* Exception handling of store word, ends. */
/* We have to prevent cases that get/put_user macros get unaligned pointer