/*******************************************************************************
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********************************************************************************
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THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE IMPLIED 
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If you received this File from Marvell, you may opt to use, redistribute and/or 
modify this File under the following licensing terms. 
Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

    *   Redistributions of source code must retain the above copyright notice,
	    this list of conditions and the following disclaimer. 

    *   Redistributions in binary form must reproduce the above copyright
        notice, this list of conditions and the following disclaimer in the
        documentation and/or other materials provided with the distribution. 

    *   Neither the name of Marvell nor the names of its contributors may be 
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR 
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*******************************************************************************/


#include "mvTypes.h"
#include "mvCommon.h"
#include "mvOs.h"
#include "ctrlEnv/mvCtrlEnvLib.h"
#include "cpu/mvCpu.h"
#include "ctrlEnv/sys/mvCpuIf.h"
#include "mvRegs.h"
#include "ctrlEnv/sys/mvSysSdmmc.h"

MV_TARGET sdmmcAddrDecPrioTab[] =
{
#if defined(MV_INCLUDE_SDRAM_CS0)
    SDRAM_CS0,
#endif
#if defined(MV_INCLUDE_SDRAM_CS1)
    SDRAM_CS1,
#endif
#if defined(MV_INCLUDE_SDRAM_CS2)
    SDRAM_CS2,
#endif
#if defined(MV_INCLUDE_SDRAM_CS3)
    SDRAM_CS3,
#endif
#if defined(MV_INCLUDE_PEX)
	PEX0_MEM,
#endif
	TBL_TERM
};


/*******************************************************************************
* sdmmcWinOverlapDetect - Detect SDMMC address windows overlapping
*
* DESCRIPTION:
*       An unpredicted behaviur is expected in case SDMMC address decode 
*       windows overlapps.
*       This function detects SDMMC address decode windows overlapping of a 
*       specified window. The function does not check the window itself for 
*       overlapping. The function also skipps disabled address decode windows.
*
* INPUT:
*       winNum      - address decode window number.
*       pAddrDecWin - An address decode window struct.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_TRUE if the given address window overlap current address
*       decode map, MV_FALSE otherwise, MV_ERROR if reading invalid data 
*       from registers.
*
*******************************************************************************/
static MV_STATUS sdmmcWinOverlapDetect(int dev, MV_U32 winNum, 
				      MV_ADDR_WIN *pAddrWin)
{
    MV_U32          winNumIndex;
    MV_SDMMC_DEC_WIN  addrDecWin;

    for(winNumIndex=0; winNumIndex<MV_SDMMC_MAX_ADDR_DECODE_WIN; winNumIndex++)
    {
        /* Do not check window itself       */
        if (winNumIndex == winNum)
        {
            continue;
        }

        /* Get window parameters    */
        if (MV_OK != mvSdmmcWinGet(dev, winNumIndex, &addrDecWin))
        {
            mvOsPrintf("%s: ERR. TargetWinGet failed\n", __FUNCTION__);
            return MV_ERROR;
        }

        /* Do not check disabled windows    */
        if(addrDecWin.enable == MV_FALSE)
        {
            continue;
        }

        if (MV_TRUE == ctrlWinOverlapTest(pAddrWin, &(addrDecWin.addrWin)))
        {
            return MV_TRUE;
        }        
    }
    return MV_FALSE;
}


/*******************************************************************************
* mvSdmmcWinSet - Set SDMMC target address window
*
* DESCRIPTION:
*       This function sets a peripheral target (e.g. SDRAM bank0, PCI_MEM0) 
*       address window, also known as address decode window. 
*       After setting this target window, the SDMMC will be able to access the 
*       target within the address window. 
*
* INPUT:
*       winNum      - SDMMC target address decode window number.
*       pAddrDecWin - SDMMC target window data structure.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_ERROR if address window overlapps with other address decode windows.
*       MV_BAD_PARAM if base address is invalid parameter or target is 
*       unknown.
*
*******************************************************************************/
MV_STATUS mvSdmmcWinSet(int dev, MV_U32 winNum, MV_SDMMC_DEC_WIN *pAddrDecWin)
{
    MV_TARGET_ATTRIB    targetAttribs;
    MV_DEC_REGS         decRegs;

    /* Parameter checking   */
    if (winNum >= MV_SDMMC_MAX_ADDR_DECODE_WIN)
    {
        mvOsPrintf("%s: ERR. Invalid win num %d\n",__FUNCTION__, winNum);
        return MV_BAD_PARAM;
    }
    
    /* Check if the requested window overlapps with current windows         */
    if (MV_TRUE == sdmmcWinOverlapDetect(dev, winNum, &pAddrDecWin->addrWin))
    {
        mvOsPrintf("%s: ERR. Window %d overlap\n", __FUNCTION__, winNum);
        return MV_ERROR;
    }

    /* check if address is aligned to the size */
    if(MV_IS_NOT_ALIGN(pAddrDecWin->addrWin.baseLow, pAddrDecWin->addrWin.size))
    {
	mvOsPrintf("mvSdmmcWinSet:Error setting SDMMC window %d to "\
		   "target %s.\nAddress 0x%08x is unaligned to size 0x%x.\n",
		   winNum,
		   mvCtrlTargetNameGet(pAddrDecWin->target), 
		   pAddrDecWin->addrWin.baseLow,
		   pAddrDecWin->addrWin.size);
	return MV_ERROR;
    }

    decRegs.baseReg = 0;
    decRegs.sizeReg = 0;

    if (MV_OK != mvCtrlAddrDecToReg(&(pAddrDecWin->addrWin),&decRegs))
    {
        mvOsPrintf("%s: mvCtrlAddrDecToReg Failed\n", __FUNCTION__);
        return MV_ERROR;
    }

    mvCtrlAttribGet(pAddrDecWin->target, &targetAttribs);
                                                                                                                         
    /* set attributes */
    decRegs.sizeReg &= ~MV_SDMMC_WIN_ATTR_MASK;
    decRegs.sizeReg |= (targetAttribs.attrib << MV_SDMMC_WIN_ATTR_OFFSET);

    /* set target ID */
    decRegs.sizeReg &= ~MV_SDMMC_WIN_TARGET_MASK;
    decRegs.sizeReg |= (targetAttribs.targetId << MV_SDMMC_WIN_TARGET_OFFSET);

    if (pAddrDecWin->enable == MV_TRUE)
    {
        decRegs.sizeReg |= MV_SDMMC_WIN_ENABLE_MASK;
    }
    else
    {
        decRegs.sizeReg &= ~MV_SDMMC_WIN_ENABLE_MASK;
    }

    MV_REG_WRITE( MV_SDMMC_WIN_CTRL_REG(dev, winNum), decRegs.sizeReg);
    MV_REG_WRITE( MV_SDMMC_WIN_BASE_REG(dev, winNum), decRegs.baseReg);
    
    return MV_OK;
}

/*******************************************************************************
* mvSdmmcWinGet - Get SDMMC peripheral target address window.
*
* DESCRIPTION:
*       Get SDMMC peripheral target address window.
*
* INPUT:
*       winNum - SDMMC target address decode window number.
*d
* OUTPUT:
*       pAddrDecWin - SDMMC target window data structure.
*
* RETURN:
*       MV_ERROR if register parameters are invalid.
*
*******************************************************************************/
MV_STATUS mvSdmmcWinGet(int dev, MV_U32 winNum, MV_SDMMC_DEC_WIN *pAddrDecWin)
{
    MV_DEC_REGS         decRegs;
    MV_TARGET_ATTRIB    targetAttrib;
                                                                                                                         
    /* Parameter checking   */
    if (winNum >= MV_SDMMC_MAX_ADDR_DECODE_WIN)
    {
        mvOsPrintf("%s (dev=%d): ERR. Invalid winNum %d\n", 
                    __FUNCTION__, dev, winNum);
        return MV_NOT_SUPPORTED;
    }

    decRegs.baseReg = MV_REG_READ( MV_SDMMC_WIN_BASE_REG(dev, winNum) );
    decRegs.sizeReg = MV_REG_READ( MV_SDMMC_WIN_CTRL_REG(dev, winNum) );
 
    if (MV_OK != mvCtrlRegToAddrDec(&decRegs, &pAddrDecWin->addrWin) )
    {
        mvOsPrintf("%s: mvCtrlRegToAddrDec Failed\n", __FUNCTION__);
        return MV_ERROR; 
    }
       
    /* attrib and targetId */
    targetAttrib.attrib = (decRegs.sizeReg & MV_SDMMC_WIN_ATTR_MASK) >> 
		MV_SDMMC_WIN_ATTR_OFFSET;
    targetAttrib.targetId = (decRegs.sizeReg & MV_SDMMC_WIN_TARGET_MASK) >> 
		MV_SDMMC_WIN_TARGET_OFFSET;
 
    pAddrDecWin->target = mvCtrlTargetGet(&targetAttrib);

    /* Check if window is enabled   */
    if(decRegs.sizeReg & MV_SDMMC_WIN_ENABLE_MASK) 
    {
        pAddrDecWin->enable = MV_TRUE;
    }
    else
    {
        pAddrDecWin->enable = MV_FALSE;
    }
    return MV_OK;
}
/*******************************************************************************
* mvSdmmcAddrDecShow - Print the SDMMC address decode map.
*
* DESCRIPTION:
*		This function print the SDMMC address decode map.
*
* INPUT:
*       None.
*
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvSdmmcAddrDecShow(MV_VOID)
{

	MV_SDMMC_DEC_WIN win;
	int i,j=0;


	if (MV_FALSE == mvCtrlPwrClckGet(SDIO_UNIT_ID, 0)) 
		return;

	mvOsOutput( "\n" );
	mvOsOutput( "SDMMC %d:\n", j );
	mvOsOutput( "----\n" );

	for( i = 0; i < MV_SDMMC_MAX_ADDR_DECODE_WIN; i++ )
	{
            memset( &win, 0, sizeof(MV_SDMMC_DEC_WIN) );

	    mvOsOutput( "win%d - ", i );

	    if( mvSdmmcWinGet(j, i, &win ) == MV_OK )
	    {
	        if( win.enable )
	        {
                    mvOsOutput( "%s base %08x, ",
                    mvCtrlTargetNameGet(win.target), win.addrWin.baseLow );
                    mvOsOutput( "...." );

                    mvSizePrint( win.addrWin.size );
    
		    mvOsOutput( "\n" );
                }
		else
		mvOsOutput( "disable\n" );
	    }
	}
}


/*******************************************************************************
* mvSdmmcWinInit - Initialize the integrated SDMMC target address window.
*
* DESCRIPTION:
*       Initialize the SDMMC peripheral target address window.
*
* INPUT:
*
*
* OUTPUT:
*     
*
* RETURN:
*       MV_ERROR if register parameters are invalid.
*
*******************************************************************************/
MV_STATUS mvSdmmcWinInit(MV_VOID)
{
    int             winNum;
    MV_SDMMC_DEC_WIN  sdmmcWin;
    MV_CPU_DEC_WIN  cpuAddrDecWin;
    MV_U32          status, winPrioIndex = 0;

    /* Initiate Sdmmc address decode */

    /* First disable all address decode windows */
    for(winNum = 0; winNum < MV_SDMMC_MAX_ADDR_DECODE_WIN; winNum++)
    {
        MV_U32  regVal = MV_REG_READ(MV_SDMMC_WIN_CTRL_REG(0, winNum));
        regVal &= ~MV_SDMMC_WIN_ENABLE_MASK;
        MV_REG_WRITE(MV_SDMMC_WIN_CTRL_REG(0, winNum), regVal);
    }
    
    winNum = 0;
    while( (sdmmcAddrDecPrioTab[winPrioIndex] != TBL_TERM) &&
           (winNum < MV_SDMMC_MAX_ADDR_DECODE_WIN) )
    {
        /* first get attributes from CPU If */
        status = mvCpuIfTargetWinGet(sdmmcAddrDecPrioTab[winPrioIndex],
                                     &cpuAddrDecWin);

        if(MV_NO_SUCH == status)
        {
            winPrioIndex++;
            continue;
        }
	if (MV_OK != status)
	{
            mvOsPrintf("%s: ERR. mvCpuIfTargetWinGet failed\n", __FUNCTION__);
	    return MV_ERROR;
	}

        if (cpuAddrDecWin.enable == MV_TRUE)
        {
            sdmmcWin.addrWin.baseHigh = cpuAddrDecWin.addrWin.baseHigh;
            sdmmcWin.addrWin.baseLow  = cpuAddrDecWin.addrWin.baseLow;
            sdmmcWin.addrWin.size     = cpuAddrDecWin.addrWin.size;
            sdmmcWin.enable           = MV_TRUE;
            sdmmcWin.target           = sdmmcAddrDecPrioTab[winPrioIndex];
            
            if(MV_OK != mvSdmmcWinSet(0/*dev*/, winNum, &sdmmcWin))
            {
                return MV_ERROR;
            }
            winNum++;
        }
        winPrioIndex++;
    }
    return MV_OK;
}