[POWERPC] 4xx: Add early udbg support for 40x processors
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>
Fri, 21 Dec 2007 04:39:26 +0000 (15:39 +1100)
committerJosh Boyer <jwboyer@linux.vnet.ibm.com>
Sun, 23 Dec 2007 19:13:03 +0000 (13:13 -0600)
This adds some basic real mode based early udbg support for 40x
in order to debug things more easily

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>

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