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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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fca5dcd483
This factors out the common bits of arch/powerpc/xmon/start_*.c into
a new nonstdio.c, and removes some stuff that was supposed to make
xmon's I/O routines somewhat stdio-like but was never used.
It also makes the parsing of the xmon= command line option common,
so that ppc32 can now use xmon={off,on,early} also.
Signed-off-by: Paul Mackerras <paulus@samba.org>
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
/*
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* Copyright (C) 1996 Paul Mackerras.
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* Copyright (C) 2000 Dan Malek.
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* Quick hack of Paul's code to make XMON work on 8xx processors. Lots
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* of assumptions, like the SMC1 is used, it has been initialized by the
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* loader at some point, and we can just stuff and suck bytes.
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* We rely upon the 8xx uart driver to support us, as the interface
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* changes between boot up and operational phases of the kernel.
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*/
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#include <linux/string.h>
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#include <asm/machdep.h>
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#include <asm/io.h>
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#include <asm/page.h>
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#include <linux/kernel.h>
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#include <asm/8xx_immap.h>
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#include <asm/mpc8xx.h>
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#include <asm/commproc.h>
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#include "nonstdio.h"
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extern int xmon_8xx_write(char *str, int nb);
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extern int xmon_8xx_read_poll(void);
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extern int xmon_8xx_read_char(void);
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void xmon_map_scc(void)
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{
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cpmp = (cpm8xx_t *)&(((immap_t *)IMAP_ADDR)->im_cpm);
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}
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void xmon_init_scc(void);
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int xmon_write(void *ptr, int nb)
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{
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return(xmon_8xx_write(ptr, nb));
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}
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int xmon_readchar(void)
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{
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return xmon_8xx_read_char();
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}
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int xmon_read_poll(void)
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{
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return(xmon_8xx_read_poll());
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}
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