Experimental Physics and
Industrial Control System

Hi,

We have a Ramix RM139m memory board working with an mv167 CPU and we now
want to use it with a PowerPC. Has anyone tried this before?

Attached to this message are the modifications made to all/usrConfing.c
and mv167/sysLib.c to make the RAMIX board work with the mv167. Any
suggestions on how to get it done with the PowerPC will be appreciated.

Thank you,

Pedro Gigoux
Gemini Observatory

-- all/usrConfig.c modifications

#define SHORTIO     0xffff0000
#define RM139SHORT  (SHORTIO + 0x0100)

void usrInit 
    (
    int startType
    )

    {
#if	(CPU_FAMILY == SPARC)
    excWindowInit ();				/* SPARC window management */
#endif

    int index;
    unsigned short *target;

    /*
      Initialization values for RAMIX RM139 Memory board - KJR
    */
    int rm139Config[7][2] = 
    {{(RM139SHORT + 0x00), 0x0040}, /* R0  VME Low        */
     {(RM139SHORT + 0x02), 0x00C0}, /* R1  VME High       */
     {(RM139SHORT + 0x04), 0x3b39}, /* R2  A24 Add. Mod.  */
     {(RM139SHORT + 0x06), 0x38},   /* R3  A24/D64 Mod.   */
     {(RM139SHORT + 0x08), 0x0b0d}, /* R4  A32 Add. Mod.  */
     {(RM139SHORT + 0x0a), 0x08},   /* R5  A32/D64 Mod.   */
     {(RM139SHORT + 0x16), 0x00}};  /* R11 Parity Control */

    /* 
       Initialize RM139 memory board with 64 MB of memory.
       This code based on an example from the RM139 User's Manual - KJR
    */

    for(index = 0;index < 7;index++)
      {
	target = (unsigned short *) rm139Config[index][0];
	*target = rm139Config[index][1];
      }

    ....
}

void usrRoot
    (
    char *	pMemPoolStart,		/* start of system memory partition */
    unsigned	memPoolSize		/* initial size of mem pool */
    )
    {
    int  ix;

    /* Initialize the memory pool before initializing any other package.
     * The memory associated with the root task will be reclaimed at the
     * completion of its activities.
     */

#ifdef INCLUDE_MEM_MGR_FULL
    memInit (pMemPoolStart, memPoolSize);	/* initialize memory pool */
#else
    memPartLibInit (pMemPoolStart, memPoolSize);/* initialize memory pool */
#endif /* INCLUDE_MEM_MGR_FULL */

#ifdef	INCLUDE_SHOW_ROUTINES 
    memShowInit ();				/* initialize memShow routine */
#endif	/* INCLUDE_SHOW_ROUTINES */

#if	defined(INCLUDE_MMU_BASIC) || defined(INCLUDE_MMU_FULL)
    usrMmuInit ();				/* initialize the mmu */
#endif	/* defined(INCLUDE_MMU_BASIC) || defined(INCLUDE_MMU_FULL) */


    /* Define RAMIX memory board to system - kjr */
    memAddToPool((char *)0x4000000, 0x8000000); 
    
    ...
}

-- mv167/sysLib.c modifications

PHYS_MEM_DESC sysPhysMemDesc [] =
    {
    /* adrs and length parameters must be page-aligned (multiples of 0x2000) */

    /* ram */
    {
    (void *) LOCAL_MEM_LOCAL_ADRS,
    (void *) LOCAL_MEM_LOCAL_ADRS,
    0x1000000,				/* 16 Mbytes (adjust if necessary) */
    VM_STATE_MASK_VALID	| VM_STATE_MASK_WRITABLE | VM_STATE_MASK_CACHEABLE,
    VM_STATE_VALID	| VM_STATE_WRITABLE	 | VM_STATE_CACHEABLE
    },

    /* vme  64 Mbytes - RAMIX board */
    {  
    (void *) 0x4000000,  
    (void *) 0x4000000,  
    0x8000000,				  
    VM_STATE_MASK_VALID	| VM_STATE_MASK_WRITABLE | VM_STATE_MASK_CACHEABLE,  
    VM_STATE_VALID	| VM_STATE_WRITABLE	 | VM_STATE_CACHEABLE_NOT  
    },  
 
    ...
}

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