diff --git a/arch/arm/boards/phytec-phyflex-imx6/lowlevel.c b/arch/arm/boards/phytec-phyflex-imx6/lowlevel.c
index e8937b9..ce168b2 100644
--- a/arch/arm/boards/phytec-phyflex-imx6/lowlevel.c
+++ b/arch/arm/boards/phytec-phyflex-imx6/lowlevel.c
@@ -54,16 +54,12 @@
 	putc_ll('>');
 }
 
-extern char __dtb_imx6q_phytec_pbab01_start[];
-extern char __dtb_imx6dl_phytec_pbab01_start[];
-extern char __dtb_imx6s_phytec_pbab01_start[];
-extern char __dtb_imx6q_phytec_phyboard_alcor_start[];
-extern char __dtb_imx6dl_phytec_phyboard_subra_start[];
+#define SZ_4G 0xEFFFFFF8
 
-BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_512M, IMD_TYPE_PARAMETER, "memsize=512", 0);
-BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_1G, IMD_TYPE_PARAMETER, "memsize=1024", 0);
-BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_2G, IMD_TYPE_PARAMETER, "memsize=2048", 0);
-BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_4G, IMD_TYPE_PARAMETER, "memsize=4096", 0);
+BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_SZ_512M, IMD_TYPE_PARAMETER, "memsize=512", 0);
+BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_SZ_1G, IMD_TYPE_PARAMETER, "memsize=1024", 0);
+BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_SZ_2G, IMD_TYPE_PARAMETER, "memsize=2048", 0);
+BAREBOX_IMD_TAG_STRING(phyflex_mx6_memsize_SZ_4G, IMD_TYPE_PARAMETER, "memsize=4096", 0);
 
 static void __noreturn start_imx6_phytec_common(uint32_t size,
 						bool do_early_uart_config,
@@ -82,58 +78,21 @@
 	barebox_arm_entry(0x10000000, size, fdt);
 }
 
-ENTRY_FUNCTION(start_phytec_pbab01_1gib, r0, r1, r2)
-{
-	IMD_USED(phyflex_mx6_memsize_1G);
+#define PHYTEC_ENTRY(name, fdt_name, memory_size, do_early_uart_config)	\
+	ENTRY_FUNCTION(name, r0, r1, r2)				\
+	{								\
+		extern char __dtb_##fdt_name##_start[];			\
+									\
+		IMD_USED(phyflex_mx6_memsize_##memory_size);		\
+									\
+		start_imx6_phytec_common(memory_size, do_early_uart_config, \
+					 __dtb_##fdt_name##_start);	\
+	}
 
-	start_imx6_phytec_common(SZ_1G, true,
-				 __dtb_imx6q_phytec_pbab01_start);
-}
-
-ENTRY_FUNCTION(start_phytec_pbab01_2gib, r0, r1, r2)
-{
-	IMD_USED(phyflex_mx6_memsize_2G);
-
-	start_imx6_phytec_common(SZ_2G, true,
-				 __dtb_imx6q_phytec_pbab01_start);
-}
-
-ENTRY_FUNCTION(start_phytec_pbab01_4gib, r0, r1, r2)
-{
-	IMD_USED(phyflex_mx6_memsize_4G);
-
-	start_imx6_phytec_common(0xEFFFFFF8, true,
-				 __dtb_imx6q_phytec_pbab01_start);
-}
-
-ENTRY_FUNCTION(start_phytec_pbab01dl_1gib, r0, r1, r2)
-{
-	IMD_USED(phyflex_mx6_memsize_1G);
-
-	start_imx6_phytec_common(SZ_1G, false,
-				 __dtb_imx6dl_phytec_pbab01_start);
-}
-
-ENTRY_FUNCTION(start_phytec_pbab01s_512mb, r0, r1, r2)
-{
-	IMD_USED(phyflex_mx6_memsize_512M);
-
-	start_imx6_phytec_common(SZ_512M, false,
-				 __dtb_imx6s_phytec_pbab01_start);
-}
-
-ENTRY_FUNCTION(start_phytec_phyboard_alcor_1gib, r0, r1, r2)
-{
-	IMD_USED(phyflex_mx6_memsize_1G);
-
-	start_imx6_phytec_common(SZ_1G, false,
-				 __dtb_imx6q_phytec_phyboard_alcor_start);
-}
-
-ENTRY_FUNCTION(start_phytec_phyboard_subra_512mb, r0, r1, r2)
-{
-	IMD_USED(phyflex_mx6_memsize_512M);
-
-	start_imx6_phytec_common(SZ_512M, false,
-				 __dtb_imx6dl_phytec_phyboard_subra_start);
-}
+PHYTEC_ENTRY(start_phytec_pbab01_1gib, imx6q_phytec_pbab01, SZ_1G, true);
+PHYTEC_ENTRY(start_phytec_pbab01_2gib, imx6q_phytec_pbab01, SZ_2G, true);
+PHYTEC_ENTRY(start_phytec_pbab01_4gib, imx6q_phytec_pbab01, SZ_4G, true);
+PHYTEC_ENTRY(start_phytec_pbab01dl_1gib, imx6dl_phytec_pbab01, SZ_1G, false);
+PHYTEC_ENTRY(start_phytec_pbab01s_512mb, imx6s_phytec_pbab01, SZ_512M, false);
+PHYTEC_ENTRY(start_phytec_phyboard_alcor_1gib, imx6q_phytec_phyboard_alcor, SZ_1G, false);
+PHYTEC_ENTRY(start_phytec_phyboard_subra_512mb, imx6dl_phytec_phyboard_subra, SZ_512M, false);