Re: gtr1-2 for SIS3301.

[Andrew Johnson <anj@aps.anl.gov>]

hkm@postech.ac.kr wrote:
> I have BSP compile errors, when the added univDma.c.

> c:\Tornado2.2\target\proj\Prj_sis3301\default\C:\Tornado2.2\target\config\mv5100\univDma.c 
> :240: undefined reference to `sysLocalToPciAdrs'

Oops, I didn't realize I was using that routine here - add this function 
somewhere, I have it in sysLib.c:


/******************************************************************************
*
* sysLocalToPciAdrs - convert a local address to a pci address
*
* This routine returns a PCIbus address as it would be seen on the bus.
* The local address that is passed into this routine is the address of
* the local resource as seen by the CPU.
*
* RETURNS: OK, or ERROR if the mapping is not possible.
*
* SEE ALSO: sysPciToLocalAdrs()
*/

STATUS sysLocalToPciAdrs
    (
    int adrsSpace,	/* whether I/O or Memory address */
    void *adrs, 	/* local address to convert */
    UINT32 *pPciAdrs	/* where to return pci address */
    )
    {
    if (adrsSpace & PCI_BAR_SPACE_IO)
	{
	if ((adrs >= (void *) PCI_MSTR_IO_LOCAL) &&
	    (adrs < (void *) (PCI_MSTR_IO_LOCAL + PCI_MSTR_IO_SIZE)))
	    {
	    adrs += PCI_MSTR_IO_BUS - PCI_MSTR_IO_LOCAL;
	    }
	else
	    return ERROR;
	}
    else /* PCI Memory space */
	{
	if ((adrs >= (void *) LOCAL_MEM_LOCAL_ADRS) &&
	    (adrs < (void *) sysPhysMemTop()))
	    {
	    adrs += PCI_SLV_MEM_LOCAL - LOCAL_MEM_LOCAL_ADRS;
	    }
	else if ((adrs >= (void *) PCI_MSTR_MEM_LOCAL) &&
		 (adrs < (void *) (PCI_MSTR_MEM_LOCAL + PCI_MSTR_MEM_SIZE)))
	    {
	    adrs += PCI_MSTR_MEM_BUS - PCI_MSTR_MEM_LOCAL;
	    }
	else
	    return ERROR;
	}

    *pPciAdrs = (UINT32) adrs;
    return OK;
    }


For completeness (although it's not needed by univDma.c) there is a 
companion function to the above which I also provide in my BSPs:


/******************************************************************************
*
* sysPciToLocalAdrs - convert a pci address to a local address
*
* This routine returns a local address that is used to access the PCIbus.
* The bus address that is passed into this routine is the PCIbus address
* as it would be seen on the bus.
*
* RETURNS: OK, or ERROR if the mapping is not possible.
*
* SEE ALSO: sysLocalToPciAdrs()
*/

STATUS sysPciToLocalAdrs
    (
    int adrsSpace,	/* whether I/O or Memory address */
    UINT32 adrs, 	/* pci address to convert */
    void **pLocalAdrs	/* where to return local address */
    )
    {
    if (adrsSpace & PCI_BAR_SPACE_IO)
	{
	if ((adrs >= PCI_MSTR_IO_BUS) &&
	    (adrs < (PCI_MSTR_IO_BUS + PCI_MSTR_IO_SIZE)))
	    {
	    adrs += PCI_MSTR_IO_LOCAL - PCI_MSTR_IO_BUS;
	    }
	else
	    return ERROR;
	}
    else /* PCI Memory space */
	{
	if ((adrs >= PCI2DRAM_BASE_ADRS) &&
	    (adrs < (PCI2DRAM_BASE_ADRS + DRAM_SIZE)))
	    {
	    adrs += LOCAL_MEM_LOCAL_ADRS - PCI2DRAM_BASE_ADRS;
	    }
	else if ((adrs >= PCI_MSTR_MEM_BUS) &&
	    (adrs < (PCI_MSTR_MEM_BUS + PCI_MSTR_MEM_SIZE)))
	    {
	    adrs += PCI_MSTR_MEM_LOCAL - PCI_MSTR_MEM_BUS;
	    }
	else
	    return ERROR;
	}
    *pLocalAdrs = (void *) adrs;
    return OK;
    }


- Andrew
--
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the sunset you made last night.  That was really cool. - Caro