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[POWERPC] 4xx: Add early udbg support for 40x processors

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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>
This commit is contained in:
Benjamin Herrenschmidt
2007-12-21 15:39:26 +11:00
committed by Josh Boyer
parent 69c0785112
commit 9dae8afdf2
6 changed files with 90 additions and 0 deletions
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3
arch/powerpc/kernel/udbg.c
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@ -54,6 +54,9 @@ void __init udbg_early_init(void)
#elif defined(CONFIG_PPC_EARLY_DEBUG_44x)
/* PPC44x debug */
udbg_init_44x_as1();
#elif defined(CONFIG_PPC_EARLY_DEBUG_40x)
/* PPC40x debug */
udbg_init_40x_realmode();
#elif defined(CONFIG_PPC_EARLY_DEBUG_CPM)
udbg_init_cpm();
#endif