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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/] [sim/] [sdram-banks.c] - Diff between revs 349 and 393

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Rev 349 Rev 393
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/*
 
 * SDRAM bank test
 
 *
 
 * Tests the extremeties of the SDRAM banks
 
 *
 
*/
 
 
 
#include "cpu-utils.h"
 
#include "board.h"
 
#include "sdram.h"
 
 
 
#define SDRAM_BANK_SIZE (SDRAM_SIZE / SDRAM_NUM_BANKS)
 
#define SDRAM_BANK_START(bank) ((SDRAM_BANK_SIZE*bank) + SDRAM_BASE)
 
#define SDRAM_BANK_LAST_WORD(bank) ((SDRAM_BANK_START((bank+1)))-4)
 
 
 
int main()
 
{
 
  report (SDRAM_SIZE);
 
  report (SDRAM_BANK_SIZE);
 
  report (SDRAM_BANK_START(0));
 
  report (SDRAM_BANK_LAST_WORD(0));
 
  report (SDRAM_BANK_START(1));
 
  report (SDRAM_BANK_LAST_WORD(1));
 
  report (SDRAM_BANK_START(2));
 
  report (SDRAM_BANK_LAST_WORD(2));
 
  report (SDRAM_BANK_START(3));
 
  report (SDRAM_BANK_LAST_WORD(3));
 
 
 
  REG32(SDRAM_BANK_LAST_WORD(0)) = 0x11111111;
 
  REG32(SDRAM_BANK_LAST_WORD(1)) = 0x22222222;
 
  REG32(SDRAM_BANK_LAST_WORD(2)) = 0x33333333;
 
  REG32(SDRAM_BANK_LAST_WORD(3)) = 0x44444444;
 
 
 
 
 
  unsigned long read_result = 0;
 
  read_result += REG32(SDRAM_BANK_LAST_WORD(0));
 
  read_result += REG32(SDRAM_BANK_LAST_WORD(1));
 
  read_result += REG32(SDRAM_BANK_LAST_WORD(2));
 
  read_result += REG32(SDRAM_BANK_LAST_WORD(3));
 
 
 
  exit((read_result-0x2aaaaa9d)); /* should result in 8000000d */
 
}
 
 
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