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-rw-r--r--arch/arc/mm/tlb.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 232a0ff80a5e..e96030c13b52 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -474,6 +474,12 @@ void __init arc_mmu_init(void)
/* Enable the MMU */
write_aux_reg(ARC_REG_PID, MMU_ENABLE);
+
+ /* In smp we use this reg for interrupt 1 scratch */
+#ifndef CONFIG_SMP
+ /* swapper_pg_dir is the pgd for the kernel, used by vmalloc */
+ write_aux_reg(ARC_REG_SCRATCH_DATA0, swapper_pg_dir);
+#endif
}
/*