entry point for linux kernel for ppc

Hi,

I am reading linux boot code for powerpc.

here is what I learned:

1)  In misc.c, the zImaged kernel code is loaded to RAM and get decompressed and then
     relocated to 0x00000000.

2)  In head.S,  the boot code sets 0x00000000 = 0xdeadc0de and jump to 0x00000004(kernel)

Does anybody know where (which file and which routine) in the kernel source is this
0x00000004 corresponding to ?

Thanks,
--
 Zhaobin Zhu
 zzhu@emc.com


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