diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index d7966cf..cf39d08 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -28,7 +28,9 @@
 obj-$(CONFIG_SATA) += sata.o
 obj-$(CONFIG_IMX_VIDEO_SKIP) += video.o
 obj-$(CONFIG_IMX_RDC) += rdc-sema.o
+ifneq ($(CONFIG_SPL_BUILD),y)
 obj-$(CONFIG_IMX_BOOTAUX) += imx_bootaux.o
+endif
 obj-$(CONFIG_SECURE_BOOT)    += hab.o
 obj-$(CONFIG_SYSCOUNTER_TIMER) += syscounter.o
 endif
diff --git a/arch/arm/mach-imx/imx_bootaux.c b/arch/arm/mach-imx/imx_bootaux.c
index 69026df..b62dfbf 100644
--- a/arch/arm/mach-imx/imx_bootaux.c
+++ b/arch/arm/mach-imx/imx_bootaux.c
@@ -6,27 +6,22 @@
 
 #include <common.h>
 #include <command.h>
+#include <linux/compiler.h>
 
 /* Allow for arch specific config before we boot */
-static int __arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
+int __weak arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
 {
 	/* please define platform specific arch_auxiliary_core_up() */
 	return CMD_RET_FAILURE;
 }
 
-int arch_auxiliary_core_up(u32 core_id, u32 boot_private_data)
-	__attribute__((weak, alias("__arch_auxiliary_core_up")));
-
 /* Allow for arch specific config before we boot */
-static int __arch_auxiliary_core_check_up(u32 core_id)
+int __weak arch_auxiliary_core_check_up(u32 core_id)
 {
 	/* please define platform specific arch_auxiliary_core_check_up() */
 	return 0;
 }
 
-int arch_auxiliary_core_check_up(u32 core_id)
-	__attribute__((weak, alias("__arch_auxiliary_core_check_up")));
-
 /*
  * To i.MX6SX and i.MX7D, the image supported by bootaux needs
  * the reset vector at the head for the image, with SP and PC
@@ -40,7 +35,7 @@
  * The TCMUL is mapped to (M4_BOOTROM_BASE_ADDR) at A core side for
  * accessing the M4 TCMUL.
  */
-int do_bootaux(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_bootaux(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	ulong addr;
 	int ret, up;
diff --git a/arch/arm/mach-imx/mx5/clock.c b/arch/arm/mach-imx/mx5/clock.c
index 610098c..284f6d4 100644
--- a/arch/arm/mach-imx/mx5/clock.c
+++ b/arch/arm/mach-imx/mx5/clock.c
@@ -911,10 +911,11 @@
 }
 #endif
 
+#ifndef CONFIG_SPL_BUILD
 /*
  * Dump some core clockes.
  */
-int do_mx5_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+static int do_mx5_showclocks(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 {
 	u32 freq;
 
@@ -947,3 +948,4 @@
 	"display clocks",
 	""
 );
+#endif
diff --git a/arch/arm/mach-imx/mx7/clock.c b/arch/arm/mach-imx/mx7/clock.c
index 8150faa..c11042d 100644
--- a/arch/arm/mach-imx/mx7/clock.c
+++ b/arch/arm/mach-imx/mx7/clock.c
@@ -1096,6 +1096,7 @@
 }
 #endif
 
+#ifndef CONFIG_SPL_BUILD
 /*
  * Dump some core clockes.
  */
@@ -1131,3 +1132,4 @@
 	"display clocks",
 	""
 );
+#endif
diff --git a/arch/arm/mach-imx/mx7ulp/clock.c b/arch/arm/mach-imx/mx7ulp/clock.c
index 77b282a..553d621 100644
--- a/arch/arm/mach-imx/mx7ulp/clock.c
+++ b/arch/arm/mach-imx/mx7ulp/clock.c
@@ -323,6 +323,7 @@
 }
 #endif
 
+#ifndef CONFIG_SPL_BUILD
 /*
  * Dump some core clockes.
  */
@@ -363,3 +364,4 @@
 	"display clocks",
 	""
 );
+#endif