134 lines
2.4 KiB
C
134 lines
2.4 KiB
C
|
/*
|
||
|
|
* (C) Copyright 2002
|
||
|
|
* Rich Ireland, Enterasys Networks, rireland@enterasys.com.
|
||
|
|
*
|
||
|
|
* See file CREDITS for list of people who contributed to this
|
||
|
|
* project.
|
||
|
|
*
|
||
|
|
* 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., 59 Temple Place, Suite 330, Boston,
|
||
|
|
* MA 02111-1307 USA
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <asm/processor.h>
|
||
|
|
#include <asm/mmu.h>
|
||
|
|
|
||
|
|
int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower)
|
||
|
|
{
|
||
|
|
switch (bat) {
|
||
|
|
case IBAT0:
|
||
|
|
mtspr (IBAT0L, lower);
|
||
|
|
mtspr (IBAT0U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IBAT1:
|
||
|
|
mtspr (IBAT1L, lower);
|
||
|
|
mtspr (IBAT1U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IBAT2:
|
||
|
|
mtspr (IBAT2L, lower);
|
||
|
|
mtspr (IBAT2U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IBAT3:
|
||
|
|
mtspr (IBAT3L, lower);
|
||
|
|
mtspr (IBAT3U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT0:
|
||
|
|
mtspr (DBAT0L, lower);
|
||
|
|
mtspr (DBAT0U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT1:
|
||
|
|
mtspr (DBAT1L, lower);
|
||
|
|
mtspr (DBAT1U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT2:
|
||
|
|
mtspr (DBAT2L, lower);
|
||
|
|
mtspr (DBAT2U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT3:
|
||
|
|
mtspr (DBAT3L, lower);
|
||
|
|
mtspr (DBAT3U, upper);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
return (-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
return (0);
|
||
|
|
}
|
||
|
|
|
||
|
|
int read_bat (ppc_bat_t bat, unsigned long *upper, unsigned long *lower)
|
||
|
|
{
|
||
|
|
unsigned long register u;
|
||
|
|
unsigned long register l;
|
||
|
|
|
||
|
|
switch (bat) {
|
||
|
|
case IBAT0:
|
||
|
|
l = mfspr (IBAT0L);
|
||
|
|
u = mfspr (IBAT0U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IBAT1:
|
||
|
|
l = mfspr (IBAT1L);
|
||
|
|
u = mfspr (IBAT1U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IBAT2:
|
||
|
|
l = mfspr (IBAT2L);
|
||
|
|
u = mfspr (IBAT2U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IBAT3:
|
||
|
|
l = mfspr (IBAT3L);
|
||
|
|
u = mfspr (IBAT3U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT0:
|
||
|
|
l = mfspr (DBAT0L);
|
||
|
|
u = mfspr (DBAT0U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT1:
|
||
|
|
l = mfspr (DBAT1L);
|
||
|
|
u = mfspr (DBAT1U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT2:
|
||
|
|
l = mfspr (DBAT2L);
|
||
|
|
u = mfspr (DBAT2U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case DBAT3:
|
||
|
|
l = mfspr (DBAT3L);
|
||
|
|
u = mfspr (DBAT3U);
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
return (-1);
|
||
|
|
}
|
||
|
|
|
||
|
|
*upper = u;
|
||
|
|
*lower = l;
|
||
|
|
|
||
|
|
return (0);
|
||
|
|
}
|