ddr_test.c

来自「davincievm 6446 記憶體DDR撿測」· C语言 代码 · 共 35 行

/*
 *  Copyright 2005 by Spectrum Digital Incorporated.
 *  All rights reserved. Property of Spectrum Digital Incorporated.
 *
 *  Not for distribution.
 */

/*
 *  DDR Test for C64xx+
 *
 */

#include "davincievm.h"

extern memfill32( Uint32 start, Uint32 len, Uint32 val );
extern memaddr32( Uint32 start, Uint32 len );
extern meminvaddr32( Uint32 start, Uint32 len );

Uint32 ddr_test( )
{
    Uint32 retcode = 0;
    Uint32 ddr_base = 0x80000000;       // DDR memory space
    Uint32 ddr_size = 0x10000000;       // 256 MB

   // retcode |= memfill32( ddr_base, ddr_size, 0xFFFFFFFF );
   // retcode |= memfill32( ddr_base, ddr_size, 0xAAAAAAAA );
  //  retcode |= memfill32( ddr_base, ddr_size, 0x55555555 );
   // retcode |= memfill32( ddr_base, ddr_size, 0x00000000 );

    retcode |= memaddr32( ddr_base, ddr_size );
    retcode |= meminvaddr32( ddr_base, ddr_size );

    return retcode;
}