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-rw-r--r--arch/arc/include/asm/mmu.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index 98cadf1a09ac..0abacb82a72b 100644
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -40,6 +40,10 @@
#define ARC_REG_SCRATCH_DATA0 0x46c
#endif
+#if defined(CONFIG_ISA_ARCV2) || !defined(CONFIG_SMP)
+#define ARC_USE_SCRATCH_REG
+#endif
+
/* Bits in MMU PID register */
#define __TLB_ENABLE (1 << 31)
#define __PROG_ENABLE (1 << 30)