[coreboot] mcp55_io_dump.c

[Carl-Daniel Hailfinger]

Yinghai sent this to the list two years ago.

It is really useful for debugging MCP55.

Regards,
Carl-Daniel

-- 
http://www.hailfinger.org/


#include <unistd.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/io.h>

int main(int argc, char *argv[])
{
  unsigned int io_addr, io_val;
  int result, i;

  if (argc!=2) {
    printf ("usage : %s  <io_addr>\n", argv[0]);
    return -1;
  }

  io_addr = strtol (argv[1], 0, 0);

  result = iopl(3);
  if (result!=0) {
    perror ("iopl:");
    return (-1);
  }

  for (i=0; i<0x100; i++) {
    io_val = inb(io_addr);
    printf(" %.8x : %.8x\n", io_addr, io_val);
    io_addr++;
  }

  return 0;
}
 


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