diff --git a/arch/arm/mach-imx/mx7ulp/soc.c b/arch/arm/mach-imx/mx7ulp/soc.c
index 8345b01..316262f 100644
--- a/arch/arm/mach-imx/mx7ulp/soc.c
+++ b/arch/arm/mach-imx/mx7ulp/soc.c
@@ -117,6 +117,7 @@
 	disable_wdog(WDG2_RBASE);
 }
 
+#if !defined(CONFIG_SPL) || (defined(CONFIG_SPL) && defined(CONFIG_SPL_BUILD))
 #if defined(CONFIG_LDO_ENABLED_MODE)
 static void init_ldo_mode(void)
 {
@@ -174,6 +175,7 @@
 #endif
 	return;
 }
+#endif
 
 #ifndef CONFIG_ULP_WATCHDOG
 void reset_cpu(ulong addr)