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-rw-r--r--chip/npcx/flash.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/chip/npcx/flash.c b/chip/npcx/flash.c
index 9c73bbdb3c..a0a02791ca 100644
--- a/chip/npcx/flash.c
+++ b/chip/npcx/flash.c
@@ -730,6 +730,9 @@ DECLARE_HOST_COMMAND(EC_CMD_FLASH_SPI_INFO,
#endif
#ifdef CONFIG_CMD_FLASH_TRISTATE
+#ifdef NPCX_INT_FLASH_SUPPORT
+#error "Flash tristate is not relevant when internal flash is used."
+#endif
static void flash_tristate(int enable)
{
/* Enable/Disable FIU pins to tri-state */