Dear sun peng
2009/9/16 Wolfgang Denk wd@denx.de:
Dear Minkyu Kang,
In message 3fa5fd300909100724x18b2a8bdve0bd6e9fb719479a@mail.gmail.com Sun Peng wrote:
Recently I'm playing with u-boot and want it be able to boot from nand. When I config u-boot to smdk6400, I found I can't get nand_spl with proper size. It need to be pad to 4k to fit into the steping stone. The final size of nand_spl is depend on the variable "PAD_TO":
# PAD_TO used to generate a 4kByte binary needed for the combined image # -> PAD_TO = TEXT_BASE + 4096 PAD_TO := $(shell expr $$[$(TEXT_BASE) + 4096]) The lines above is in file: u-boot-xxx/nand_spl//board/samsung/smdk6400/config.mk Unfortunately the PAD_TO can not evaluate to the proper value when I run the makefile. I change the the line to below: PAD_TO := $(shell expr $(TEXT_BASE) + 4096) then the whole build works OK.
Is there any body think this is an issue ?
Could you please be so kind and have a look at this?
Thanks in advance.
Best regards,
Wolfgang Denk
-- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de "IBM uses what I like to call the 'hole-in-the-ground technique' to destroy the competition..... IBM digs a big HOLE in the ground and covers it with leaves. It then puts a big POT OF GOLD nearby. Then it gives the call, 'Hey, look at all this gold, get over here fast.' As soon as the competitor approaches the pot, he falls into the pit" - John C. Dvorak _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
I saw correct PAD_TO value without modification.
ccache /opt/toolchains/arm-2008q3/bin/arm-none-linux-gnueabi-objcopy --gap-fill=0xff --pad-to=4096 -O binary /home/share/Work/u-boot-work/nand_spl/u-boot-spl /home/share/Work/u-boot-work/nand_spl/u-boot-spl-16k.bin
and I've got 4Kbyte binary also.
-rwxr-xr-x 1 prom prom 4096 2009-09-16 10:21 u-boot-spl-16k.bin
I think there have no problem. If it's not your problem, please explain in more detail.
Thanks. Minkyu Kang