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