OpenCores
URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [orpsocv2/] [sw/] [tests/] [sdram/] [board/] [sdram-rows.c] - Diff between revs 393 and 426

Go to most recent revision | Show entire file | Details | Blame | View Log

Rev 393 Rev 426
Line 1... Line 1...
 
/*
 
 * SDRAM row test, for running on the board (with printfs)
 
 *
 
 * Tests accessing every row
 
 *
 
*/
 
 
 
#include "cpu-utils.h"
 
#include "board.h"
 
#include "sdram.h"
 
#include "uart.h"
 
#include "printf.h"
 
 
 
#ifndef _SDRAM_H_
 
#define _SDRAM_H_
 
 
 
#ifdef  MT48LC32M16A2 // 64MB SDRAM part
 
#define SDRAM_SIZE 0x04000000
 
#define SDRAM_ROW_SIZE 2048 // in bytes (10 bits col addr, 2 bytes per)
 
#define SDRAM_NUM_ROWS_PER_BANK (8192) // 13-bit row address
 
#define SDRAM_NUM_BANKS 4
 
#endif
 
 
 
#ifdef  MT48LC16M16A2 // 32MB SDRAM part
 
#define SDRAM_SIZE 0x02000000
 
#define SDRAM_ROW_SIZE 1024 // in bytes (9 bits col addr, 2 bytes per)
 
#define SDRAM_NUM_ROWS_PER_BANK (8192) // 13-bit row address
 
#define SDRAM_NUM_BANKS 4
 
#endif
 
 
 
#ifdef MT48LC4M16A2 // 8MB SDRAM part
 
#define SDRAM_SIZE 0x800000
 
#define SDRAM_ROW_SIZE 512 // in bytes (8 bits col addr, 2 bytes per)
 
#define SDRAM_NUM_ROWS_PER_BANK (4096) // 12-bit row address
 
#define SDRAM_NUM_BANKS 4
 
#endif
 
 
 
 
 
#endif
 
 
 
 
 
#define SDRAM_NUM_ROWS (SDRAM_NUM_ROWS_PER_BANK * SDRAM_NUM_BANKS)
 
 
 
#define START_ROW 128
 
 
 
int main()
 
{
 
 
 
  uart_init(DEFAULT_UART);
 
 
 
 
 
  printf("\n\tSDRAM rows test\n");
 
 
 
  printf("\n\tWriting\n");
 
 
 
  int i; // Skip first 64KB, code/stack resides there - TODO determine this from
 
  // stack linker variable!
 
  for(i=START_ROW;i<(SDRAM_NUM_ROWS);i++)
 
    {
 
      REG32((i*(SDRAM_ROW_SIZE))) = i;
 
      printf("\r\t0x%x", i);
 
    }
 
 
 
  printf("\n\tReading\n");
 
 
 
  int read_result = 0;
 
 
 
  for(i=START_ROW;i<(SDRAM_NUM_ROWS);i++)
 
    {
 
      printf("\r\t0x%x", i);
 
      read_result = REG32((i*(SDRAM_ROW_SIZE)));
 
      if (read_result != i)
 
        {
 
          printf("\n\Error at 0x%x, read 0x%x, expected 0x%x\n",
 
                 (i*SDRAM_ROW_SIZE), read_result, i);
 
          report(0xbaaaaaad);
 
          report(i);
 
          report(read_result);
 
          exit(0xbaaaaaad);
 
        }
 
    }
 
  printf("\n\tTest OK.\n");
 
  exit(0x8000000d);
 
}
 
 
 No newline at end of file
 No newline at end of file

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.