1 files changed, 2 insertions, 1 deletions

diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 63dd2c3ad95e..ae4836ea7442 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -115,7 +115,8 @@ static int __init add_legacy_soc_port(struct device_node *np,
 {
         u64 addr;
         const u32 *addrp;
-        upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ;
+        upf_t flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_SHARE_IRQ
+                | UPF_FIXED_PORT;
         struct device_node *tsi = of_get_parent(np);
 
         /* We only support ports that have a clock frequency properly