bat_rw.c
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/*
* (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>
#include <asm/io.h>
int write_bat (ppc_bat_t bat, unsigned long upper, unsigned long lower)
{
sync();
switch (bat) {
case DBAT0:
mtspr (DBAT0L, lower);
mtspr (DBAT0U, upper);
break;
case IBAT0:
mtspr (IBAT0L, lower);
mtspr (IBAT0U, upper);
break;
case DBAT1:
mtspr (DBAT1L, lower);
mtspr (DBAT1U, upper);
break;
case IBAT1:
mtspr (IBAT1L, lower);
mtspr (IBAT1U, upper);
break;
case DBAT2:
mtspr (DBAT2L, lower);
mtspr (DBAT2U, upper);
break;
case IBAT2:
mtspr (IBAT2L, lower);
mtspr (IBAT2U, upper);
break;
case DBAT3:
mtspr (DBAT3L, lower);
mtspr (DBAT3U, upper);
break;
case IBAT3:
mtspr (IBAT3L, lower);
mtspr (IBAT3U, upper);
break;
#ifdef CONFIG_HIGH_BATS
case DBAT4:
mtspr (DBAT4L, lower);
mtspr (DBAT4U, upper);
break;
case IBAT4:
mtspr (IBAT4L, lower);
mtspr (IBAT4U, upper);
break;
case DBAT5:
mtspr (DBAT5L, lower);
mtspr (DBAT5U, upper);
break;
case IBAT5:
mtspr (IBAT5L, lower);
mtspr (IBAT5U, upper);
break;
case DBAT6:
mtspr (DBAT6L, lower);
mtspr (DBAT6U, upper);
break;
case IBAT6:
mtspr (IBAT6L, lower);
mtspr (IBAT6U, upper);
break;
case DBAT7:
mtspr (DBAT7L, lower);
mtspr (DBAT7U, upper);
break;
case IBAT7:
mtspr (IBAT7L, lower);
mtspr (IBAT7U, upper);
break;
#endif
default:
return (-1);
}
sync();
isync();
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 DBAT0:
l = mfspr (DBAT0L);
u = mfspr (DBAT0U);
break;
case IBAT0:
l = mfspr (IBAT0L);
u = mfspr (IBAT0U);
break;
case DBAT1:
l = mfspr (DBAT1L);
u = mfspr (DBAT1U);
break;
case IBAT1:
l = mfspr (IBAT1L);
u = mfspr (IBAT1U);
break;
case DBAT2:
l = mfspr (DBAT2L);
u = mfspr (DBAT2U);
break;
case IBAT2:
l = mfspr (IBAT2L);
u = mfspr (IBAT2U);
break;
case DBAT3:
l = mfspr (DBAT3L);
u = mfspr (DBAT3U);
break;
case IBAT3:
l = mfspr (IBAT3L);
u = mfspr (IBAT3U);
break;
#ifdef CONFIG_HIGH_BATS
case DBAT4:
l = mfspr (DBAT4L);
u = mfspr (DBAT4U);
break;
case IBAT4:
l = mfspr (IBAT4L);
u = mfspr (IBAT4U);
break;
case DBAT5:
l = mfspr (DBAT5L);
u = mfspr (DBAT5U);
break;
case IBAT5:
l = mfspr (IBAT5L);
u = mfspr (IBAT5U);
break;
case DBAT6:
l = mfspr (DBAT6L);
u = mfspr (DBAT6U);
break;
case IBAT6:
l = mfspr (IBAT6L);
u = mfspr (IBAT6U);
break;
case DBAT7:
l = mfspr (DBAT7L);
u = mfspr (DBAT7U);
break;
case IBAT7:
l = mfspr (IBAT7L);
u = mfspr (IBAT7U);
break;
#endif
default:
return (-1);
}
*upper = u;
*lower = l;
return (0);
}
void print_bats(void)
{
printf("BAT registers:\n");
printf ("\tIBAT0L = 0x%08X ", mfspr (IBAT0L));
printf ("\tIBAT0U = 0x%08X\n", mfspr (IBAT0U));
printf ("\tDBAT0L = 0x%08X ", mfspr (DBAT0L));
printf ("\tDBAT0U = 0x%08X\n", mfspr (DBAT0U));
printf ("\tIBAT1L = 0x%08X ", mfspr (IBAT1L));
printf ("\tIBAT1U = 0x%08X\n", mfspr (IBAT1U));
printf ("\tDBAT1L = 0x%08X ", mfspr (DBAT1L));
printf ("\tDBAT1U = 0x%08X\n", mfspr (DBAT1U));
printf ("\tIBAT2L = 0x%08X ", mfspr (IBAT2L));
printf ("\tIBAT2U = 0x%08X\n", mfspr (IBAT2U));
printf ("\tDBAT2L = 0x%08X ", mfspr (DBAT2L));
printf ("\tDBAT2U = 0x%08X\n", mfspr (DBAT2U));
printf ("\tIBAT3L = 0x%08X ", mfspr (IBAT3L));
printf ("\tIBAT3U = 0x%08X\n", mfspr (IBAT3U));
printf ("\tDBAT3L = 0x%08X ", mfspr (DBAT3L));
printf ("\tDBAT3U = 0x%08X\n", mfspr (DBAT3U));
#ifdef CONFIG_HIGH_BATS
printf ("\tIBAT4L = 0x%08X ", mfspr (IBAT4L));
printf ("\tIBAT4U = 0x%08X\n", mfspr (IBAT4U));
printf ("\tDBAT4L = 0x%08X ", mfspr (DBAT4L));
printf ("\tDBAT4U = 0x%08X\n", mfspr (DBAT4U));
printf ("\tIBAT5L = 0x%08X ", mfspr (IBAT5L));
printf ("\tIBAT5U = 0x%08X\n", mfspr (IBAT5U));
printf ("\tDBAT5L = 0x%08X ", mfspr (DBAT5L));
printf ("\tDBAT5U = 0x%08X\n", mfspr (DBAT5U));
printf ("\tIBAT6L = 0x%08X ", mfspr (IBAT6L));
printf ("\tIBAT6U = 0x%08X\n", mfspr (IBAT6U));
printf ("\tDBAT6L = 0x%08X ", mfspr (DBAT6L));
printf ("\tDBAT6U = 0x%08X\n", mfspr (DBAT6U));
printf ("\tIBAT7L = 0x%08X ", mfspr (IBAT7L));
printf ("\tIBAT7U = 0x%08X\n", mfspr (IBAT7U));
printf ("\tDBAT7L = 0x%08X ", mfspr (DBAT7L));
printf ("\tDBAT7U = 0x%08X\n", mfspr (DBAT7U));
#endif
}