Problem in booting PPC with kernel 2.5.44
benh at kernel.crashing.org
Fri Nov 15 00:36:21 EST 2002
On Wed, 2002-11-13 at 10:52, Atm account wrote:
> Hello All,
> We are porting Linux 2.5.44 for our custom board which has
> 603e processor..
> We are using the arch/ppc/boot/simple bootloader with minor
> modifications. At the end of boot-code relocation to 8 Mb, the code jumps
> to the relocated code and thereafter
> does the decompression (decompress_kernel)of the vmlinux image to physical
> address 0 and jumps to the 0th location (3 nops followed by code). It is
> from here that early_init is called.
> Now the problem is ... the kernel has been linked at 3GB and a call in
> kernel/head.S which says ---
> bl early_init
> translates to sth like => bl 0Xc000xxxx
> I dont have the MMU on at this point nor any dual mapping being done
> thru the BATs. So how is the above code supposed to execute ?????
> Our board precisely hangs after this jump.
Those are relative branches, not absolute.
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