tstsdram.c

pnx1500 ddr test demo

/*
 * Copyright (C) 2003 Koninklijke Philips Electronics N.V.,
 * All Rights Reserved.
 *
 * This source code and any compilation or derivative thereof is the
 * proprietary information of Koninklijke Philips Electronics N.V.
 * and is confidential in nature.
 * Under no circumstances is this software to be exposed to or placed
 * under an Open Source License of any type without the expressed
 * written permission of Koninklijke Philips Electronics N.V.
 *
 *----------------------------------------------------------*/
/*!
 *      \file           tstSdram.c
 *
 *      Test largest malloc()'ed block of memory.
 *
 */
/*-----------------------------------------------------------
 *
 *      %version:       9 %
 *      instance:       DS_4
 *      %date_created:  Mon Jun 09 18:11:08 2003 %
 *
 */
 //-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// Standard include files:
//-----------------------------------------------------------------------------
//
#include <stdio.h>
#include <stdlib.h>
#include <tmStdLib.h>
#include <tmNxTypes.h>
#include <tmDbg.h>
#include <tmosal.h>
#include <stdio.h>
#include <tmCache.h>
#include <tmMain.h>

//-----------------------------------------------------------------------------
// Project include files:
//-----------------------------------------------------------------------------
//
#include <unistd.h>
#include <mmio.h>

//-----------------------------------------------------------------------------
// Types and defines:
//-----------------------------------------------------------------------------

//-----------------------------------------------------------------------------
// Global data:
//-----------------------------------------------------------------------------
//

//-----------------------------------------------------------------------------
// Internal Prototypes:
//-----------------------------------------------------------------------------
//

custom_op void dcb(UInt32, UInt32);
custom_op void dinvalid(UInt32, UInt32);
custom_op UInt32 rdtag(UInt32, UInt32);
custom_op UInt32 ld32d(UInt32, UInt32);

#define CACHE_LINE_SIZE 0x40
#define CACHE_SIZE      0x4000

#define ERROR_MAX       16

//-----------------------------------------------------------------------------
// Code from old sdram_test.c
//-----------------------------------------------------------------------------
//

#define TRUE 1
#define FALSE 0

int sdram_fail;

int t_sdram_flipbits(unsigned value, unsigned *start, unsigned len)      /* 64 byte aligned guarranteed */
{
    unsigned *p, v, i, obs, errors;

    errors = 0;

    p = start;
    v = value;

    for(i = 0; i < (len/sizeof(unsigned)); p++, i++) {
        *p = v;
        v = ~v;
    }


    p = start;
    v = value;

    for(i = 0; i < (len/sizeof(unsigned)); p++, i++) {
        if((obs = *p) != v) {

            errors++;
            printf("Read error:    @ 0x%.8x, obs 0x%.8x, exp 0x%.8x, obs ^ exp 0x%.8x\n",
                   (unsigned)(p), obs, v, obs ^ v);

            dinvalid(0, (UInt32) p) ;

            if((obs = *p) != v) {
                printf("Re-Read error: @ 0x%.8x, obs 0x%.8x, exp 0x%.8x, obs ^ exp 0x%.8x\n",
                       (unsigned)(p), obs, v, obs ^ v);
            }
            if (errors > ERROR_MAX) {
                printf("errors > %d, exitting...\n", ERROR_MAX) ;
                return errors ;
            }
        }

        v = ~v;
    }

    return errors;
}




/*
 * Test sdram by storing address at address
 */
int t_sdram_addr(UInt32 *begin_p, UInt32 len) {
    UInt32   *end_p ;
    UInt32   *ipp ;
    UInt32   exp_val ;
    UInt32   obs_val ;
    int errors ;

    end_p = (UInt32 *) (((char *) begin_p) + len) ;
    errors = 0 ;

    /*
     * Fill memory with data==address
     */
    ipp = begin_p ;
    while (ipp < end_p) {
        *ipp = (UInt32) ipp ;
        ipp++;
    }

    /*
     * Check memory with data==address
     */
    ipp = begin_p ;
    while (ipp < end_p) {
        exp_val = (UInt32) ipp ;
        obs_val = *ipp ;
        if (obs_val != exp_val) {
            errors++ ;
            printf("read error:    addr %08x exp %08x obs %08x xor %08x\n",
                   ipp, exp_val, obs_val, exp_val ^ obs_val) ;
            dinvalid(0, (UInt32) ipp) ;
            obs_val = *ipp ;
            if (obs_val != exp_val) {
                printf("re-read error: addr %08x exp %08x obs %08x xor %08x\n",
                       ipp, exp_val, obs_val, exp_val ^ obs_val) ;
            }
            if (errors > ERROR_MAX) {
                printf("errors > %d, exitting...\n", ERROR_MAX) ;
                return errors ;
            }
        }
        ipp++ ;
    }

    return errors ;
}

/*
 * Test sdram by storing 1's complement of address at address
 */
int t_sdram_inv_addr(UInt32 *begin_p, UInt32 len) {
    UInt32   *end_p ;
    UInt32   *ipp ;
    UInt32   exp_val ;
    UInt32   obs_val ;
    int errors ;

    end_p = (UInt32 *) (((char *) begin_p) + len) ;
    errors = 0 ;

    /*
     * Fill memory with data==~address
     */
    ipp = begin_p ;
    while (ipp < end_p) {
        *ipp = (~((UInt32) ipp)) ;
        ipp++;
    }

    /*
     * Check memory with data==~address
     */
    ipp = begin_p ;
    while (ipp < end_p) {
        exp_val = (~((UInt32) ipp)) ;
        obs_val = *ipp ;
        if (obs_val != exp_val) {
            errors++ ;
            printf("read error:    addr %08x exp %08x obs %08x xor %08x\n",
                   ipp, exp_val, obs_val, exp_val ^ obs_val) ;
            dinvalid(0, (UInt32) ipp) ;
            obs_val = *ipp ;
            if (obs_val != exp_val) {
                printf("re-read error: addr %08x exp %08x obs %08x xor %08x\n",
                       ipp, exp_val, obs_val, exp_val ^ obs_val) ;
            }
            if (errors > ERROR_MAX) {
                printf("errors > %d, exitting...\n", ERROR_MAX) ;
                return errors ;
            }
        }
        ipp++ ;
    }

    return errors ;
}

/*
 * Test sdram with walking ones
 */
int t_sdram_walk1(UInt32 *begin_p, UInt32 len) {
    UInt32   *end_p ;
    UInt32   *ipp ;
    UInt32   start_val ;
    UInt32   exp_val ;
    UInt32   obs_val ;
    int lap ;
    int errors ;

    end_p = (UInt32 *) (((char *) begin_p) + len) ;
    errors = 0 ;

    lap = 0 ;
    start_val = 1 ;
    while (start_val != 0) {
        printf("    lap %2d\n", lap++) ;

        /*
         * Fill memory with data
         */
        exp_val = start_val ;
        ipp = begin_p ;
        while (ipp < end_p) {
            *ipp++ = exp_val ;
            exp_val = exp_val << 1 ;
            if (exp_val == 0) {
                exp_val = 1 ;
            }
        }

        /*
         * Check memory
         */
        exp_val = start_val ;
        ipp = begin_p ;
        while (ipp < end_p) {
            obs_val = *ipp ;
            if (obs_val != exp_val) {
                errors++ ;
                printf("read error:    addr %08x exp %08x obs %08x xor %08x\n",
                       ipp, exp_val, obs_val, exp_val ^ obs_val) ;
                dinvalid(0, (UInt32) ipp) ;
                obs_val = *ipp ;
                if (obs_val != exp_val) {
                    printf("re-read error: addr %08x exp %08x obs %08x xor %08x\n",
                           ipp, exp_val, obs_val, exp_val ^ obs_val) ;
                    }
                if (errors > ERROR_MAX) {
                    printf("errors > %d, exitting...\n", ERROR_MAX) ;
                    return errors ;
                }
            }
            exp_val = exp_val << 1 ;
            if (exp_val == 0) {
                exp_val = 1 ;
            }
            ipp++ ;
        }
        start_val = start_val << 1 ;
    }

    return errors ;
}

/*
 * Test sdram with walking zeroes
 */