forked from luck/tmp_suning_uos_patched
32 lines
848 B
C
32 lines
848 B
C
|
/*
|
||
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
||
|
|
* License. See the file "COPYING" in the main directory of this archive
|
||
|
|
* for more details.
|
||
|
|
*
|
||
|
|
* Copyright (C) 1996 David S. Miller (dm@sgi.com)
|
||
|
|
* Compability with board caches, Ulf Carlsson
|
||
|
|
*/
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <asm/sgialib.h>
|
||
|
|
#include <asm/bcache.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* IP22 boardcache is not compatible with board caches. Thus we disable it
|
||
|
|
* during romvec action. Since r4xx0.c is always compiled and linked with your
|
||
|
|
* kernel, this shouldn't cause any harm regardless what MIPS processor you
|
||
|
|
* have.
|
||
|
|
*
|
||
|
|
* The ARC write and read functions seem to interfere with the serial lines
|
||
|
|
* in some way. You should be careful with them.
|
||
|
|
*/
|
||
|
|
|
||
|
|
void prom_putchar(char c)
|
||
|
|
{
|
||
|
|
ULONG cnt;
|
||
|
|
CHAR it = c;
|
||
|
|
|
||
|
|
bc_disable();
|
||
|
|
ArcWrite(1, &it, 1, &cnt);
|
||
|
|
bc_enable();
|
||
|
|
}
|