In message 001b01c62248$07fdc8a0$9e01120a@bilisim.local you wrote:
1- when linux image is zImage, there is no boot parameter passing from
Parameter passing has nothing to do whith the image format. if the kernel can be booted using the given format then usually paramters can be passed, too. Not all boot loaders do this, though, but that's a different story.
bootloader(DINK32 or customer firmware) to kernel and bootloader integrated into linux image. In this situation, is linux kernel start at point linux/arch/ppc/kernel/haed.S - _start start up code ?
The kernel entry point has nothing to do with parameter passing either.
I have to admit that I don't understand what your problemd and your question was.
2- when linux image is uImage, how do u-boot pass board info data structure to linux kernel? where is linux kernel starting point in linux sources?
Thishas been described before here on the list, just a few days ago I think. Please look in the archives. And as far as the Linux start is concerned - see the do_bootm() code for the respective architecture.
Best regards,
Wolfgang Denk