Linking problem on new port

Hi all,

I have been using U-Boot for a while, but this is the first time I have tried to port it to a new board myself, so please consider me a newbie!

I have a problem linking U-Boot for my new board. I know this is my fault, I have missed something in the setup, can anyone point out what it is that is missed?

The compile stage works, this is what I see when I try to link:

----
ppc_74xx-ld -Bstatic -T /usr/home/wb231-le11/Workspace/u-boot/board/ppmc7xx/u-boot.lds -Ttext -n $UNDEF_SYM cpu/74xx_7xx/start.o \
--start-group lib_generic/libgeneric.a
board/ppmc7xx/libppmc7xx.a cpu/74xx_7xx/lib74xx_7xx.a lib_ppc/libppc.a fs/cramfs/libcramfs.a fs/fat/libfat.a fs/fdos/libfdos.a fs/jffs2/libjffs2.a fs/reiserfs/libreiserfs.a fs/ext2/libext2fs.a net/libnet.a disk/libdisk.a rtc/librtc.a dtt/libdtt.a drivers/libdrivers.a drivers/sk98lin/libsk98lin.a post/libpost.a post/cpu/libcpu.a common/libcommon.a --end-group -L /opt/eldk3.1.1/usr/bin/../lib/gcc-lib/ppc-linux/3.3.3/m7400/pic -lgcc \
-Map u-boot.map -o u-boot
ppc_74xx-ld: invalid hex number `-n'
----

The $UNDEF_SYM is obviously wrong (I think!).

I am not surprised if I have missed things, so far I have written just a skeleton for the board support, even if it links it won't run yet. I have been adding things as needed, but I just can't find what is missing here. Any suggestions?

I'd like to ask another question too whilst I'm here. I have a single bank of Flash running from 0xFFC00000 to 0xFFFFFFFF. I want U-Boot to be placed at 0xFFF00000 with the entry point at 0xFFF00100. Am I right to set the following? If not, how do I achieve this?

#define CFG_FLASH_BASE 0xFFC00000
#define CFG_MONITOR_BASE 0xFFF00000

Is this related to the problem above?

Many thanks!
Rich

This part of the LDFLAGS variable definition (which holds the linker options) comes from the config.mk file:

LDFLAGS += -Bstatic -T $(LDSCRIPT) -Ttext $(TEXT_BASE) $(PLATFORM_LDFLAGS)

As you can see, the "-Ttext" argument should be followed by the base address of your text segment, which gets defined in your board's config.mk file; obviously you missed to define TEXT_BASE in your board/<whatever>/config.mk file.

Best regards,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
A star captain's most solemn oath is that he will give his life, even
his entire crew, rather than violate the Prime Directive.
	-- Kirk, "The Omega Glory", stardate unknown

Found it! I did not have a definition for TEXT_BASE.