In linux-2.4.25 source tree, maybe there's something wrong with the boot process of
ppc44x cpu.
In arch/ppc/boot/common/relocate.S, we decompress the kernel to address 0, then jump
there to do real boot job (arch/ppc/kernel/head_44x.S). But the last expression is `ba 0x000c'.
Actually there's only one nop at the begining of head_44x.S, so the expression should
be `ba 0x0004' for ppc-44x. But for compatibility, i think it should be `ba 0x0',
because there's different number of 'nops' in head.S for different cpus.
Actually, in linux-2.4.26, linux-2.4.30, i also found the same problem.
but in linux-2.6, it seems solved already.
Thank you.
patch below:
diff -rNu linux-2.4.25/arch/ppc/boot/common/relocate.S linux-2.4.25.me/arch/ppc/boot/common/relocate.S
--- linux-2.4.25/arch/ppc/boot/common/relocate.S 2003-08-25 19:44:40.000000000 +0800
+++ linux-2.4.25.me/arch/ppc/boot/common/relocate.S 2005-05-27 12:07:05.000000000 +0800
@@ -203,6 +203,7 @@
* three instructions are 'nop' since we
* sometimes overwrite them).
*/
- ba 0x000c
+ #ba 0x000c
+ ba 0x0
.comm .stack,4096*2,4