Thank you very much, also found the method is documented the new u-boot wiki.
Best Regards, Wang On Tue, Jul 14, 2009 at 7:24 PM, Detlev Zundel<d...@denx.de> wrote: > Hi Wang, > >>>> the code is from arch/powerpc/boot/cuboot-bamboo.c, and the kernel is >>>> 2.6.30.1, the boot image I'm using is something like cuImage.bamboo, I >>>> checked zImage.ld.S, and found that when we're running cuImage.bamboo, >>>> we actually fall into arch/powerpc/boot/crt0.S:_zimage_start(), which >>>> will call platform_init() and then bamboo_init() finally. but sounds >>>> like if we passing r3 as fdt, then the code (platform_init, etc.., and >>>> even arch/powerpc/kernel/head_xxx.S start() function, only comments, >>>> though) is actually wrong, isn't it? Thank you very much for help. >>> >>> This is the boot wrapper code only used if you are trying to boot a new >>> kernel w/an old u-boot. If you are using a current u-boot you should just >>> be using a plain old uImage as produced by the kernel build. >> >> do you mean the default ``uImage'' file? I'm using u-boot-2009.06, and >> I can boot successfully with cuImage.mpc8548cds (I'm actually working >> on a mpc8548 cds board), but unable to boot ``uImage'', I'm sure the >> ``vmlinux'' is the same. > > Booting such a new kernel, you'll need to pass an adress of an fdt too: > > => help bootm > bootm [addr [arg ...]] > - boot application image stored in memory > passing arguments 'arg ...'; when booting a Linux kernel, > 'arg' can be the address of an initrd image > When booting a Linux kernel which requires a flat device-tree > a third argument is required which is the address of the > device-tree blob. To boot that kernel without an initrd image, > use a '-' for the second argument. If you do not pass a third > a bd_info struct will be passed instead > > So try "bootm <kernel> - <fdt>" > > Cheers > Detlev > > -- > "The number you have dialed is imaginary. Please rotate your phone 90 > degrees and try again." > -- > DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: d...@denx.de > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
