RE: Uncompress Ok, but cannot run linux kernel...

I stumbled into the same problem a while ago.

While I did not use a hardware debugger I used the sample demonstrating
serial output to find that the Montavista kernel stops at the rfi
instruction which is used to simultanoeusly turn on instruction and data
address translation and to set the instruction pointer to the (remapped)
start_here label. Unfortunately I lost my PPC hardware (405GP Walnut
board) before I could find any solution.

Regards
Tom

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I stumbled into the same problem a while ago.

While I did not use a hardware debugger I used the sample demonstrating
serial output to find that the Montavista kernel stops at the rfi
instruction which is used to simultanoeusly turn on instruction and data
address translation and to set the instruction pointer to the (remapped)
start_here label. Unfortunately I lost my PPC hardware (405GP Walnut
board) before I could find any solution.

Yes, this is also exactly what i meet now.
I find that "turn_on_mmu" use SYNC as following:
turn_on_mmu:
    .....
    SYNC
    RFI

here SYNC may do nothing according to your .config(CONFIG_PPC601_SYNC_FIX)
if you look into arch/ppc/kernel/ppc_asm.h.
Will this be a problem? I use linux-2.4.2 .

machael


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