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/*
* Display the PowerPC BAT Registers
*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <inttypes.h>
#include <string.h>
#include <bsp.h>
#include <rtems/bspIo.h>
#include <libcpu/spr.h>
#include <libcpu/powerpc-utility.h>
void printBAT( int bat, uint32_t upper, uint32_t lower )
{
uint32_t lowest_addr;
uint32_t size;
printk("BAT%d raw(upper=0x%08" PRIx32 ", lower=0x%08" PRIx32 ") ", bat, upper, lower );
lowest_addr = (upper & 0xFFFE0000);
size = (((upper & 0x00001FFC) >> 2) + 1) * (128 * 1024);
printk(" range(0x%08" PRIx32 ", 0x%08" PRIx32 ") %s%s %s%s%s%s %s\n",
lowest_addr,
lowest_addr + (size - 1),
(upper & 0x01) ? "P" : "p",
(upper & 0x02) ? "S" : "s",
(lower & 0x08) ? "G" : "g",
(lower & 0x10) ? "M" : "m",
(lower & 0x20) ? "I" : "i",
(lower & 0x40) ? "W" : "w",
(lower & 0x01) ? "Read Only" :
((lower & 0x02) ? "Read/Write" : "No Access")
);
}
void ShowBATS(void){
uint32_t lower;
uint32_t upper;
__MFSPR(536, upper); __MFSPR(537, lower); printBAT( 0, upper, lower );
__MFSPR(538, upper); __MFSPR(539, lower); printBAT( 1, upper, lower );
__MFSPR(540, upper); __MFSPR(541, lower); printBAT( 2, upper, lower );
__MFSPR(542, upper); __MFSPR(543, lower); printBAT( 3, upper, lower );
}
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