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