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51d3082fe6
This patch unifies udbg for both ppc32 and ppc64 when building the merged achitecture. xmon now has a single "back end". The powermac udbg stuff gets enriched with some ADB capabilities and btext output. In addition, the early_init callback is now called on ppc32 as well, approx. in the same order as ppc64 regarding device-tree manipulations. The init sequences of ppc32 and ppc64 are getting closer, I'll unify them in a later patch. For now, you can force udbg to the scc using "sccdbg" or to btext using "btextdbg" on powermacs. I'll implement a cleaner way of forcing udbg output to something else than the autodetected OF output device in a later patch. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
35 lines
655 B
C
35 lines
655 B
C
/*
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* Copyright (C) 1996 Paul Mackerras.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#include <asm/machdep.h>
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#include <asm/udbg.h>
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#include "nonstdio.h"
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void xmon_map_scc(void)
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{
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}
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int xmon_write(void *ptr, int nb)
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{
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return udbg_write(ptr, nb);
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}
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int xmon_readchar(void)
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{
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if (udbg_getc)
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return udbg_getc();
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return -1;
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}
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int xmon_read_poll(void)
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{
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if (udbg_getc_poll)
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return udbg_getc_poll();
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return -1;
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}
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