forked from luck/tmp_suning_uos_patched
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
/*
|
|
* Copyright (C) 1996 Paul Mackerras.
|
|
* Copyright (C) 2000 Dan Malek.
|
|
* Quick hack of Paul's code to make XMON work on 8xx processors. Lots
|
|
* of assumptions, like the SMC1 is used, it has been initialized by the
|
|
* loader at some point, and we can just stuff and suck bytes.
|
|
* We rely upon the 8xx uart driver to support us, as the interface
|
|
* changes between boot up and operational phases of the kernel.
|
|
*/
|
|
#include <linux/string.h>
|
|
#include <asm/machdep.h>
|
|
#include <asm/io.h>
|
|
#include <asm/page.h>
|
|
#include <linux/kernel.h>
|
|
#include <asm/8xx_immap.h>
|
|
#include <asm/mpc8xx.h>
|
|
#include <asm/commproc.h>
|
|
#include "nonstdio.h"
|
|
|
|
extern int xmon_8xx_write(char *str, int nb);
|
|
extern int xmon_8xx_read_poll(void);
|
|
extern int xmon_8xx_read_char(void);
|
|
|
|
void xmon_map_scc(void)
|
|
{
|
|
cpmp = (cpm8xx_t *)&(((immap_t *)IMAP_ADDR)->im_cpm);
|
|
}
|
|
|
|
void xmon_init_scc(void);
|
|
|
|
int xmon_write(void *ptr, int nb)
|
|
{
|
|
return(xmon_8xx_write(ptr, nb));
|
|
}
|
|
|
|
int xmon_readchar(void)
|
|
{
|
|
return xmon_8xx_read_char();
|
|
}
|
|
|
|
int xmon_read_poll(void)
|
|
{
|
|
return(xmon_8xx_read_poll());
|
|
}
|