diff --git a/Makefile b/Makefile
index f18f3eb..a8ca5e9 100644
--- a/Makefile
+++ b/Makefile
@@ -168,10 +168,9 @@
 OBJTREE		:= $(objtree)
 SPLTREE		:= $(OBJTREE)/spl
 TPLTREE		:= $(OBJTREE)/tpl
-SRCTREE		:= $(srctree)
-export	SRCTREE OBJTREE SPLTREE TPLTREE
+export	OBJTREE SPLTREE TPLTREE
 
-MKCONFIG	:= $(SRCTREE)/mkconfig
+MKCONFIG	:= $(srctree)/mkconfig
 export MKCONFIG
 
 # Make sure CDPATH settings don't interfere
diff --git a/board/ait/cam_enc_4xx/config.mk b/board/ait/cam_enc_4xx/config.mk
index c7cfaca..2022151 100644
--- a/board/ait/cam_enc_4xx/config.mk
+++ b/board/ait/cam_enc_4xx/config.mk
@@ -7,7 +7,7 @@
 # (mem base + reserved)
 #
 
-UBL_CONFIG = $(SRCTREE)/board/$(BOARDDIR)/ublimage.cfg
+UBL_CONFIG = $(srctree)/board/$(BOARDDIR)/ublimage.cfg
 ifndef CONFIG_SPL_BUILD
 ALL-y += u-boot.ubl
 else
diff --git a/board/avnet/fx12mm/Makefile b/board/avnet/fx12mm/Makefile
index 37fb02f..618b42f 100644
--- a/board/avnet/fx12mm/Makefile
+++ b/board/avnet/fx12mm/Makefile
@@ -8,4 +8,4 @@
 
 obj-y	+= fx12mm.o
 
-include $(SRCTREE)/board/xilinx/ppc405-generic/Makefile
+include $(srctree)/board/xilinx/ppc405-generic/Makefile
diff --git a/board/avnet/v5fx30teval/Makefile b/board/avnet/v5fx30teval/Makefile
index f7d0417..8c41af0 100644
--- a/board/avnet/v5fx30teval/Makefile
+++ b/board/avnet/v5fx30teval/Makefile
@@ -8,4 +8,4 @@
 
 obj-y	+= v5fx30teval.o
 
-include $(SRCTREE)/board/xilinx/ppc440-generic/Makefile
+include $(srctree)/board/xilinx/ppc440-generic/Makefile
diff --git a/board/xilinx/ml507/Makefile b/board/xilinx/ml507/Makefile
index 3c84651..9a3809f 100644
--- a/board/xilinx/ml507/Makefile
+++ b/board/xilinx/ml507/Makefile
@@ -8,4 +8,4 @@
 
 obj-y	+= ml507.o
 
-include $(SRCTREE)/board/xilinx/ppc440-generic/Makefile
+include $(srctree)/board/xilinx/ppc440-generic/Makefile
diff --git a/config.mk b/config.mk
index 9bf4eda..05864aa 100644
--- a/config.mk
+++ b/config.mk
@@ -25,7 +25,7 @@
 # Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
 # CPU-specific code.
 CPUDIR=arch/$(ARCH)/cpu/$(CPU)
-ifneq ($(SRCTREE)/$(CPUDIR),$(wildcard $(SRCTREE)/$(CPUDIR)))
+ifneq ($(srctree)/$(CPUDIR),$(wildcard $(srctree)/$(CPUDIR)))
 CPUDIR=arch/$(ARCH)/cpu
 endif
 
diff --git a/mkconfig b/mkconfig
index b755d2a..17ff298 100755
--- a/mkconfig
+++ b/mkconfig
@@ -105,7 +105,7 @@
 #
 if [ -n "$KBUILD_SRC" ] ; then
 	mkdir -p ${OBJTREE}/include
-	LNPREFIX=${SRCTREE}/arch/${arch}/include/asm/
+	LNPREFIX=${srctree}/arch/${arch}/include/asm/
 	cd ${OBJTREE}/include
 	mkdir -p asm
 else
@@ -126,7 +126,7 @@
 fi
 
 if [ -z "$KBUILD_SRC" ] ; then
-	cd ${SRCTREE}/include
+	cd ${srctree}/include
 fi
 
 #
diff --git a/nand_spl/board/freescale/mpc8315erdb/Makefile b/nand_spl/board/freescale/mpc8315erdb/Makefile
index 4eec00f..e3c87cf 100644
--- a/nand_spl/board/freescale/mpc8315erdb/Makefile
+++ b/nand_spl/board/freescale/mpc8315erdb/Makefile
@@ -44,28 +44,28 @@
 # create symbolic links for common files
 
 $(obj)/start.S:
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/start.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc83xx/start.S $@
 
 $(obj)/nand_boot_fsl_elbc.c:
-	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
+	ln -sf $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
 
 $(obj)/sdram.c:
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/sdram.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/sdram.c $@
 
 $(obj)/$(BOARD).c:
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/$(BOARD).c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/$(BOARD).c $@
 
 $(obj)/ns16550.c:
-	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
+	ln -sf $(srctree)/drivers/serial/ns16550.c $@
 
 $(obj)/spl_minimal.c:
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
 
 $(obj)/cache.c:
-	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
+	ln -sf $(srctree)/arch/powerpc/lib/cache.c $@
 
 $(obj)/time.c:
-	ln -sf $(SRCTREE)/arch/powerpc/lib/time.c $@
+	ln -sf $(srctree)/arch/powerpc/lib/time.c $@
 
 $(obj)/ticks.S:
-	ln -sf $(SRCTREE)/arch/powerpc/lib/ticks.S $@
+	ln -sf $(srctree)/arch/powerpc/lib/ticks.S $@
diff --git a/nand_spl/board/freescale/mpc8536ds/Makefile b/nand_spl/board/freescale/mpc8536ds/Makefile
index 9a9823d..eefa44d 100644
--- a/nand_spl/board/freescale/mpc8536ds/Makefile
+++ b/nand_spl/board/freescale/mpc8536ds/Makefile
@@ -48,48 +48,48 @@
 
 $(obj)/cache.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
+	ln -sf $(srctree)/arch/powerpc/lib/cache.c $@
 
 $(obj)/cpu_init_early.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
 $(obj)/spl_minimal.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
 $(obj)/fsl_law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
 $(obj)/law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/law.c $@
 
 $(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
+	ln -sf $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
 
 $(obj)/ns16550.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
+	ln -sf $(srctree)/drivers/serial/ns16550.c $@
 
 $(obj)/resetvec.S:
 	@rm -f $@
-	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
+	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
 $(obj)/fixed_ivor.S:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
 $(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
 
 $(obj)/tlb.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
 $(obj)/tlb_table.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/tlb.c $@
diff --git a/nand_spl/board/freescale/mpc8569mds/Makefile b/nand_spl/board/freescale/mpc8569mds/Makefile
index 9a9823d..eefa44d 100644
--- a/nand_spl/board/freescale/mpc8569mds/Makefile
+++ b/nand_spl/board/freescale/mpc8569mds/Makefile
@@ -48,48 +48,48 @@
 
 $(obj)/cache.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
+	ln -sf $(srctree)/arch/powerpc/lib/cache.c $@
 
 $(obj)/cpu_init_early.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
 $(obj)/spl_minimal.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
 $(obj)/fsl_law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
 $(obj)/law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/law.c $@
 
 $(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
+	ln -sf $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
 
 $(obj)/ns16550.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
+	ln -sf $(srctree)/drivers/serial/ns16550.c $@
 
 $(obj)/resetvec.S:
 	@rm -f $@
-	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
+	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
 $(obj)/fixed_ivor.S:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
 $(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
 
 $(obj)/tlb.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
 $(obj)/tlb_table.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/tlb.c $@
diff --git a/nand_spl/board/freescale/mpc8572ds/Makefile b/nand_spl/board/freescale/mpc8572ds/Makefile
index 9a9823d..eefa44d 100644
--- a/nand_spl/board/freescale/mpc8572ds/Makefile
+++ b/nand_spl/board/freescale/mpc8572ds/Makefile
@@ -48,48 +48,48 @@
 
 $(obj)/cache.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
+	ln -sf $(srctree)/arch/powerpc/lib/cache.c $@
 
 $(obj)/cpu_init_early.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
 $(obj)/spl_minimal.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
 $(obj)/fsl_law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
 $(obj)/law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/law.c $@
 
 $(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
+	ln -sf $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
 
 $(obj)/ns16550.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
+	ln -sf $(srctree)/drivers/serial/ns16550.c $@
 
 $(obj)/resetvec.S:
 	@rm -f $@
-	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
+	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
 $(obj)/fixed_ivor.S:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
 $(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
 
 $(obj)/tlb.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
 $(obj)/tlb_table.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/tlb.c $@
diff --git a/nand_spl/board/freescale/p1023rds/Makefile b/nand_spl/board/freescale/p1023rds/Makefile
index 9e8698b..f5e567c 100644
--- a/nand_spl/board/freescale/p1023rds/Makefile
+++ b/nand_spl/board/freescale/p1023rds/Makefile
@@ -44,48 +44,48 @@
 
 $(obj)/cache.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
+	ln -sf $(srctree)/arch/powerpc/lib/cache.c $@
 
 $(obj)/cpu_init_early.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/$(CPUDIR)/cpu_init_early.c $@
+	ln -sf $(srctree)/$(CPUDIR)/cpu_init_early.c $@
 
 $(obj)/spl_minimal.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/$(CPUDIR)/spl_minimal.c $@
+	ln -sf $(srctree)/$(CPUDIR)/spl_minimal.c $@
 
 $(obj)/fsl_law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
 $(obj)/law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/law.c $@
 
 $(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
+	ln -sf $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
 
 $(obj)/ns16550.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
+	ln -sf $(srctree)/drivers/serial/ns16550.c $@
 
 $(obj)/resetvec.S:
 	@rm -f $@
-	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
+	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
 $(obj)/fixed_ivor.S:
 	@rm -f $@
-	ln -sf $(SRCTREE)/$(CPUDIR)/fixed_ivor.S $@
+	ln -sf $(srctree)/$(CPUDIR)/fixed_ivor.S $@
 
 $(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
-	ln -sf $(SRCTREE)/$(CPUDIR)/start.S $@
+	ln -sf $(srctree)/$(CPUDIR)/start.S $@
 
 $(obj)/tlb.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/$(CPUDIR)/tlb.c $@
+	ln -sf $(srctree)/$(CPUDIR)/tlb.c $@
 
 $(obj)/tlb_table.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/tlb.c $@
diff --git a/nand_spl/board/freescale/p1_p2_rdb/Makefile b/nand_spl/board/freescale/p1_p2_rdb/Makefile
index 9a9823d..eefa44d 100644
--- a/nand_spl/board/freescale/p1_p2_rdb/Makefile
+++ b/nand_spl/board/freescale/p1_p2_rdb/Makefile
@@ -48,48 +48,48 @@
 
 $(obj)/cache.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/lib/cache.c $@
+	ln -sf $(srctree)/arch/powerpc/lib/cache.c $@
 
 $(obj)/cpu_init_early.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/cpu_init_early.c $@
 
 $(obj)/spl_minimal.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/spl_minimal.c $@
 
 $(obj)/fsl_law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc8xxx/law.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc8xxx/law.c $@
 
 $(obj)/law.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/law.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/law.c $@
 
 $(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
+	ln -sf $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
 
 $(obj)/ns16550.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/drivers/serial/ns16550.c $@
+	ln -sf $(srctree)/drivers/serial/ns16550.c $@
 
 $(obj)/resetvec.S:
 	@rm -f $@
-	ln -s $(SRCTREE)/$(CPUDIR)/resetvec.S $@
+	ln -s $(srctree)/$(CPUDIR)/resetvec.S $@
 
 $(obj)/fixed_ivor.S:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/fixed_ivor.S $@
 
 $(obj)/start.S: $(obj)/fixed_ivor.S
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/start.S $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/start.S $@
 
 $(obj)/tlb.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/arch/powerpc/cpu/mpc85xx/tlb.c $@
+	ln -sf $(srctree)/arch/powerpc/cpu/mpc85xx/tlb.c $@
 
 $(obj)/tlb_table.c:
 	@rm -f $@
-	ln -sf $(SRCTREE)/board/$(BOARDDIR)/tlb.c $@
+	ln -sf $(srctree)/board/$(BOARDDIR)/tlb.c $@
diff --git a/nand_spl/board/sheldon/simpc8313/Makefile b/nand_spl/board/sheldon/simpc8313/Makefile
index e08a9a0..664301c 100644
--- a/nand_spl/board/sheldon/simpc8313/Makefile
+++ b/nand_spl/board/sheldon/simpc8313/Makefile
@@ -46,36 +46,36 @@
 
 $(obj)/start.S:
 	@rm -f $@
-	ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/start.S $@
+	ln -s $(srctree)/arch/powerpc/cpu/mpc83xx/start.S $@
 
 $(obj)/nand_boot_fsl_elbc.c:
 	@rm -f $@
-	ln -s $(SRCTREE)/nand_spl/nand_boot_fsl_elbc.c $@
+	ln -s $(srctree)/nand_spl/nand_boot_fsl_elbc.c $@
 
 $(obj)/sdram.c:
 	@rm -f $@
-	ln -s $(SRCTREE)/board/$(BOARDDIR)/sdram.c $@
+	ln -s $(srctree)/board/$(BOARDDIR)/sdram.c $@
 
 $(obj)/$(BOARD).c:
 	@rm -f $@
-	ln -s $(SRCTREE)/board/$(BOARDDIR)/$(BOARD).c $@
+	ln -s $(srctree)/board/$(BOARDDIR)/$(BOARD).c $@
 
 $(obj)/ns16550.c:
 	@rm -f $@
-	ln -s $(SRCTREE)/drivers/serial/ns16550.c $@
+	ln -s $(srctree)/drivers/serial/ns16550.c $@
 
 $(obj)/spl_minimal.c:
 	@rm -f $@
-	ln -s $(SRCTREE)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
+	ln -s $(srctree)/arch/powerpc/cpu/mpc83xx/spl_minimal.c $@
 
 $(obj)/cache.c:
 	@rm -f $@
-	ln -s $(SRCTREE)/arch/powerpc/lib/cache.c $@
+	ln -s $(srctree)/arch/powerpc/lib/cache.c $@
 
 $(obj)/time.c:
 	@rm -f $@
-	ln -s $(SRCTREE)/arch/powerpc/lib/time.c $@
+	ln -s $(srctree)/arch/powerpc/lib/time.c $@
 
 $(obj)/ticks.S:
 	@rm -f $@
-	ln -s $(SRCTREE)/arch/powerpc/lib/ticks.S $@
+	ln -s $(srctree)/arch/powerpc/lib/ticks.S $@
diff --git a/spl/Makefile b/spl/Makefile
index 640db8b..b89a579 100644
--- a/spl/Makefile
+++ b/spl/Makefile
@@ -68,7 +68,7 @@
 include/spl-autoconf.mk: include/config.h
 	$(call cmd,autoconf)
 
-HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(SRCTREE)/board/$(VENDOR)/common/Makefile),y,n)
+HAVE_VENDOR_COMMON_LIB = $(if $(wildcard $(srctree)/board/$(VENDOR)/common/Makefile),y,n)
 
 ifdef	CONFIG_SPL_START_S_PATH
 START_PATH := $(CONFIG_SPL_START_S_PATH:"%"=%)
@@ -145,7 +145,7 @@
 # Linker Script
 ifdef CONFIG_SPL_LDSCRIPT
 # need to strip off double quotes
-LDSCRIPT := $(addprefix $(SRCTREE)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
+LDSCRIPT := $(addprefix $(srctree)/,$(CONFIG_SPL_LDSCRIPT:"%"=%))
 endif
 
 ifeq ($(wildcard $(LDSCRIPT)),)
diff --git a/tools/Makefile b/tools/Makefile
index bac6aaf..097cc1d 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -172,10 +172,10 @@
 # Define __KERNEL_STRICT_NAMES to prevent typedef overlaps
 # Define _GNU_SOURCE to obtain the getline prototype from stdio.h
 #
-HOST_EXTRACFLAGS += -include $(SRCTREE)/include/libfdt_env.h \
+HOST_EXTRACFLAGS += -include $(srctree)/include/libfdt_env.h \
 		$(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
-		-I$(SRCTREE)/lib/libfdt \
-		-I$(SRCTREE)/tools \
+		-I$(srctree)/lib/libfdt \
+		-I$(srctree)/tools \
 		-DCONFIG_SYS_TEXT_BASE=$(CONFIG_SYS_TEXT_BASE) \
 		-DUSE_HOSTCC \
 		-D__KERNEL_STRICT_NAMES \
diff --git a/tools/env/Makefile b/tools/env/Makefile
index 6ad81fd..fcb752d 100644
--- a/tools/env/Makefile
+++ b/tools/env/Makefile
@@ -12,7 +12,7 @@
 
 # Compile for a hosted environment on the target
 HOST_EXTRACFLAGS  = $(patsubst -I%,-idirafter%, $(UBOOTINCLUDE)) \
-		-idirafter $(SRCTREE)/tools/env \
+		-idirafter $(srctree)/tools/env \
 		-DUSE_HOSTCC \
 		-DTEXT_BASE=$(TEXT_BASE)