45 lines
1.2 KiB
C
45 lines
1.2 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with this program; if not, write to the
|
||
|
|
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
||
|
|
* Boston, MA 02110-1301, USA.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <asm/reboot.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
|
||
|
|
static void rdc321x_reset(void)
|
||
|
|
{
|
||
|
|
unsigned i;
|
||
|
|
|
||
|
|
/* write to southbridge config register 0x41
|
||
|
|
enable pci reset on cpu reset, make internal port 0x92 writeable
|
||
|
|
and switch port 0x92 to internal */
|
||
|
|
outl(0x80003840, 0xCF8);
|
||
|
|
i = inl(0xCFC);
|
||
|
|
i |= 0x1600;
|
||
|
|
outl(i, 0xCFC);
|
||
|
|
|
||
|
|
/* soft reset */
|
||
|
|
outb(1, 0x92);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __init rdc_setup_reset(void)
|
||
|
|
{
|
||
|
|
machine_ops.emergency_restart = rdc321x_reset;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
arch_initcall(rdc_setup_reset);
|