diff --git a/Makefile b/Makefile
index c410552..e6f85ad 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ all: $(TOOLS)
 misc: $(MISC_TOOLS)
 
 clean:
-	@rm -vf $(TOOLS) $(MISC_TOOLS)
+	@rm -vf $(TOOLS) $(MISC_TOOLS) *.o *.elf
 
 
 $(TOOLS): Makefile common.h
@@ -27,8 +27,6 @@ fexc: fexc.h script.h script.c \
 	script_bin.h script_bin.c \
 	script_fex.h script_fex.c
 
-bootinfo: bootinfo.c
-
 LIBUSB = libusb-1.0
 LIBUSB_CFLAGS = `pkg-config --cflags $(LIBUSB)`
 LIBUSB_LIBS = `pkg-config --libs $(LIBUSB)`
@@ -39,6 +37,19 @@ fel: fel.c
 %: %.c
 	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $(filter %.c,$^) $(LIBS)
 
+.dummy:	fel-pio.bin
+
+fel-pio.bin: fel-pio.elf fel-pio.nm
+	arm-none-eabi-objcopy -O binary fel-pio.elf fel-pio.bin
+
+fel-pio.elf: fel-pio.c
+	arm-none-eabi-gcc  -g  -Os   -fno-common -fno-builtin -ffreestanding -nostdinc -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fno-toplevel-reorder  fel-pio.c -nostdlib -o fel-pio.elf -T fel-pio.lds
+
+fel-pio.nm: fel-pio.elf
+	arm-none-eabi-nm fel-pio.elf | grep -v " _" >fel-pio.nm
+
+bootinfo: bootinfo.c
+
 .gitignore: Makefile
 	@for x in $(TOOLS) '*.o' '*.swp'; do \
 		echo "$$x"; \
diff --git a/fel-pio.c b/fel-pio.c
index 2bea032..d40e861 100644
--- a/fel-pio.c
+++ b/fel-pio.c
@@ -21,15 +21,28 @@
 
 Build instructions:
 
-arm-none-linux-gnueabi-gcc  -g  -Os   -fno-common -ffixed-r8 -msoft-float -fno-builtin -ffreestanding -nostdinc -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fno-toplevel-reorder  fel-pio.c -c
+arm-none-eabi-gcc  -g  -Os   -fno-common -fno-builtin -ffreestanding -nostdinc -mno-thumb-interwork -Wall -Wstrict-prototypes -fno-stack-protector -Wno-format-nonliteral -Wno-format-security -fno-toplevel-reorder  fel-pio.c -nostdlib -o fel-pio.elf
 
-arm-none-linux-gnueabi-objcopy -O binary fel-pio.o fel-pio.bin
+arm-none-eabi-objcopy -O binary fel-pio.elf fel-pio.bin
 
-arm-none-linux-gnueabi-nm fel-pio.o
+arm-none-eabi-nm fel-pio.o
 
 */
 
+void _pio_to_sram(void);
+void _sram_to_pio(void);
+
 void pio_to_sram(void)
+{
+	_pio_to_sram();
+}
+
+void sram_to_pio(void)
+{
+	_sram_to_pio();
+}
+
+void _pio_to_sram(void)
 {
 	unsigned long *a = (void *)0x1c20800;
 	unsigned long *b = (void *)0x3000;
@@ -39,7 +52,7 @@ void pio_to_sram(void)
 	}
 }
 
-void sram_to_pio(void)
+void _sram_to_pio(void)
 {
 	unsigned long *a = (void *)0x1c20800;
 	unsigned long *b = (void *)0x3000;
diff --git a/fel-pio.lds b/fel-pio.lds
new file mode 100644
index 0000000..790ff1f
--- /dev/null
+++ b/fel-pio.lds
@@ -0,0 +1,7 @@
+     SECTIONS
+     {
+       . = 0x2000;
+       .text : { *(.text) }
+     }
+
+