mirror of
https://github.com/torvalds/linux.git
synced 2024-12-21 10:31:54 +00:00
926e6940f5
Values will need to be byte-swapped when calling prom (big endian) from a little endian boot wrapper. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
48 lines
1.0 KiB
C
48 lines
1.0 KiB
C
/*
|
|
* OF console routines
|
|
*
|
|
* Copyright (C) Paul Mackerras 1997.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#include <stddef.h>
|
|
#include "types.h"
|
|
#include "elf.h"
|
|
#include "string.h"
|
|
#include "stdio.h"
|
|
#include "page.h"
|
|
#include "ops.h"
|
|
|
|
#include "of.h"
|
|
|
|
static unsigned int of_stdout_handle;
|
|
|
|
static int of_console_open(void)
|
|
{
|
|
void *devp;
|
|
|
|
if (((devp = of_finddevice("/chosen")) != NULL)
|
|
&& (of_getprop(devp, "stdout", &of_stdout_handle,
|
|
sizeof(of_stdout_handle))
|
|
== sizeof(of_stdout_handle))) {
|
|
of_stdout_handle = be32_to_cpu(of_stdout_handle);
|
|
return 0;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void of_console_write(const char *buf, int len)
|
|
{
|
|
of_call_prom("write", 3, 1, of_stdout_handle, buf, len);
|
|
}
|
|
|
|
void of_console_init(void)
|
|
{
|
|
console_ops.open = of_console_open;
|
|
console_ops.write = of_console_write;
|
|
}
|