diff --git a/Makefile b/Makefile
index b10d3b1..5204ab4 100644
--- a/Makefile
+++ b/Makefile
@@ -567,7 +567,7 @@ $(obj)u-boot.lds: $(LDSCRIPT) depend
 		$(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$< >$@
 
 nand_spl:	$(TIMESTAMP_FILE) $(VERSION_FILE) depend
-		$(MAKE) -C nand_spl/board/$(BOARDDIR) all
+		$(MAKE) $(build) nand_spl/board/$(BOARDDIR) all
 
 $(obj)u-boot-nand.bin:	nand_spl $(obj)u-boot.bin
 		cat $(obj)nand_spl/u-boot-spl-16k.bin $(obj)u-boot.bin > $(obj)u-boot-nand.bin
diff --git a/nand_spl/board/amcc/acadia/Makefile b/nand_spl/board/amcc/acadia/Makefile
index 022a205..3b00d49 100644
--- a/nand_spl/board/amcc/acadia/Makefile
+++ b/nand_spl/board/amcc/acadia/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -94,10 +93,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/bamboo/Makefile b/nand_spl/board/amcc/bamboo/Makefile
index d413a48..4063274 100644
--- a/nand_spl/board/amcc/bamboo/Makefile
+++ b/nand_spl/board/amcc/bamboo/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -82,10 +81,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/canyonlands/Makefile b/nand_spl/board/amcc/canyonlands/Makefile
index b2ef03f..13c8b36 100644
--- a/nand_spl/board/amcc/canyonlands/Makefile
+++ b/nand_spl/board/amcc/canyonlands/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -87,10 +86,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/kilauea/Makefile b/nand_spl/board/amcc/kilauea/Makefile
index 5899b9e..9d07147 100644
--- a/nand_spl/board/amcc/kilauea/Makefile
+++ b/nand_spl/board/amcc/kilauea/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -83,10 +82,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/amcc/sequoia/Makefile b/nand_spl/board/amcc/sequoia/Makefile
index fea6c4e..111bb0d 100644
--- a/nand_spl/board/amcc/sequoia/Makefile
+++ b/nand_spl/board/amcc/sequoia/Makefile
@@ -5,7 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-include $(TOPDIR)/config.mk
 include $(TOPDIR)/nand_spl/board/$(BOARDDIR)/config.mk
 
 nandobj	:= $(OBJTREE)/nand_spl/
@@ -86,10 +85,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8315erdb/Makefile b/nand_spl/board/freescale/mpc8315erdb/Makefile
index c49a6e0..7813823 100644
--- a/nand_spl/board/freescale/mpc8315erdb/Makefile
+++ b/nand_spl/board/freescale/mpc8315erdb/Makefile
@@ -6,11 +6,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 PAD_TO := 0xfff04000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
@@ -79,10 +76,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8536ds/Makefile b/nand_spl/board/freescale/mpc8536ds/Makefile
index 6233081..5d9953b 100644
--- a/nand_spl/board/freescale/mpc8536ds/Makefile
+++ b/nand_spl/board/freescale/mpc8536ds/Makefile
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8569mds/Makefile b/nand_spl/board/freescale/mpc8569mds/Makefile
index 6233081..5d9953b 100644
--- a/nand_spl/board/freescale/mpc8569mds/Makefile
+++ b/nand_spl/board/freescale/mpc8569mds/Makefile
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/mpc8572ds/Makefile b/nand_spl/board/freescale/mpc8572ds/Makefile
index 6233081..5d9953b 100644
--- a/nand_spl/board/freescale/mpc8572ds/Makefile
+++ b/nand_spl/board/freescale/mpc8572ds/Makefile
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/p1023rds/Makefile b/nand_spl/board/freescale/p1023rds/Makefile
index dbdfa19..652590d 100644
--- a/nand_spl/board/freescale/p1023rds/Makefile
+++ b/nand_spl/board/freescale/p1023rds/Makefile
@@ -3,10 +3,8 @@
 #
 # SPDX-License-Identifier:	GPL-2.0+
 #
-NAND_SPL := y
-PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
+PAD_TO := 0xfff01000
 
 nandobj	:= $(OBJTREE)/nand_spl/
 
@@ -104,10 +102,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/freescale/p1_p2_rdb/Makefile b/nand_spl/board/freescale/p1_p2_rdb/Makefile
index 6233081..5d9953b 100644
--- a/nand_spl/board/freescale/p1_p2_rdb/Makefile
+++ b/nand_spl/board/freescale/p1_p2_rdb/Makefile
@@ -7,12 +7,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
 CONFIG_SYS_TEXT_BASE_SPL := 0xfff00000
 PAD_TO := 0xfff01000
 
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/$(CPUDIR)/u-boot-nand_spl.lds
@@ -109,10 +106,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/nand_spl/board/sheldon/simpc8313/Makefile b/nand_spl/board/sheldon/simpc8313/Makefile
index 90f132c..5e83abc 100644
--- a/nand_spl/board/sheldon/simpc8313/Makefile
+++ b/nand_spl/board/sheldon/simpc8313/Makefile
@@ -7,10 +7,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-NAND_SPL := y
-
-include $(TOPDIR)/config.mk
-
 nandobj	:= $(OBJTREE)/nand_spl/
 
 LDSCRIPT= $(TOPDIR)/nand_spl/board/$(BOARDDIR)/u-boot.lds
@@ -88,10 +84,3 @@ $(obj)%.o:	$(obj)%.S
 
 $(obj)%.o:	$(obj)%.c
 	$(CC) $(CFLAGS) -c -o $@ $<
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################