Re: mpc8xx-2.2.13 kernel hangs during boot.

szg98@mail.zhongxing.com wrote:

Hi,
     I don't think you have an incorrect UPM setting. When the kernel was
being decompressed , decompress_kernel() has use ram as stack.

Yes but the kernel isn't running yet.  It runs after it is decompressed.  When
it starts running it normally enables the caches (I commented out this code)
and sets up the MMU.  Maybe the MMU requires the caches ?
]
Thanks,
Brendan Simon.


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Brendan John Simon wrote:

.....  Maybe the MMU requires the caches ?

No, but the MMU control registers contain cache modes to use
when the MMU is disabled.....which reminds me there could be
a bug if we are running copyback.....


	-- Dan

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