/*******************************************************************************
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to you under the terms of the applicable Commercial License.

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Redistribution and use in source and binary forms, with or without modification, 
are permitted provided that the following conditions are met:

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        notice, this list of conditions and the following disclaimer in the
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND 
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*******************************************************************************/

/*******************************************************************************
* mvCtrlEnvAddrDec.h - Marvell controller address decode library
*
* DESCRIPTION:
*
* DEPENDENCIES:
*       None.
*
*******************************************************************************/

/* includes */
#include "ctrlEnv/mvCtrlEnvAddrDec.h"
#include "ctrlEnv/sys/mvAhbToMbusRegs.h"
#include "ddr2/mvDramIfRegs.h"
#include "pex/mvPexRegs.h"

#define MV_DEBUG

/* defines  */
#ifdef MV_DEBUG
	#define DB(x)	x
#else
	#define DB(x)
#endif
	
/* Default Attributes array */
MV_TARGET_ATTRIB	mvTargetDefaultsArray[] = TARGETS_DEF_ARRAY;
extern MV_TARGET 	*sampleAtResetTargetArray;
/* Dram\AHBToMbus\PEX share regsiter */

#define CTRL_DEC_BASE_OFFS		16
#define CTRL_DEC_BASE_MASK		(0xffff << CTRL_DEC_BASE_OFFS)
#define CTRL_DEC_BASE_ALIGNMENT	0x10000

#define CTRL_DEC_SIZE_OFFS		16
#define CTRL_DEC_SIZE_MASK		(0xffff << CTRL_DEC_SIZE_OFFS)
#define CTRL_DEC_SIZE_ALIGNMENT	0x10000

#define CTRL_DEC_WIN_EN			BIT0


/*******************************************************************************
* mvCtrlAddrDecToReg - Get address decode register format values
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*
* RETURN:
*
*******************************************************************************/
MV_STATUS mvCtrlAddrDecToReg(MV_ADDR_WIN *pAddrDecWin, MV_DEC_REGS *pAddrDecRegs)
{

	MV_U32 baseToReg=0 , sizeToReg=0;
    
	/* BaseLow[31:16] => base register [31:16]		*/
	baseToReg = pAddrDecWin->baseLow & CTRL_DEC_BASE_MASK;

	/* Write to address decode Base Address Register                  */
	pAddrDecRegs->baseReg &= ~CTRL_DEC_BASE_MASK;
	pAddrDecRegs->baseReg |= baseToReg;

	/* Get size register value according to window size						*/
	sizeToReg = ctrlSizeToReg(pAddrDecWin->size, CTRL_DEC_SIZE_ALIGNMENT);
	
	/* Size parameter validity check.                                   */
	if (-1 == sizeToReg)
	{
		return MV_BAD_PARAM;
	}

	/* set size */
	pAddrDecRegs->sizeReg &= ~CTRL_DEC_SIZE_MASK;
	pAddrDecRegs->sizeReg |= (sizeToReg << CTRL_DEC_SIZE_OFFS);
	

	return MV_OK;

}

/*******************************************************************************
* mvCtrlRegToAddrDec - Extract address decode struct from registers.
*
* DESCRIPTION:
*       This function extract address decode struct from address decode 
*       registers given as parameters.
*
* INPUT:
*       pAddrDecRegs - Address decode register struct.
*
* OUTPUT:
*       pAddrDecWin - Target window data structure.
*
* RETURN:
*		MV_BAD_PARAM if address decode registers data is invalid.
*
*******************************************************************************/
MV_STATUS mvCtrlRegToAddrDec(MV_DEC_REGS *pAddrDecRegs, MV_ADDR_WIN *pAddrDecWin)
{
	MV_U32 sizeRegVal;
	
	sizeRegVal = (pAddrDecRegs->sizeReg & CTRL_DEC_SIZE_MASK) >> 
					CTRL_DEC_SIZE_OFFS;

	pAddrDecWin->size = ctrlRegToSize(sizeRegVal, CTRL_DEC_SIZE_ALIGNMENT);


	/* Extract base address						*/
	/* Base register [31:16] ==> baseLow[31:16] 		*/
	pAddrDecWin->baseLow = pAddrDecRegs->baseReg & CTRL_DEC_BASE_MASK;

	pAddrDecWin->baseHigh =  0;

	return MV_OK;
    
}

/*******************************************************************************
* mvCtrlAttribGet - 
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*
* RETURN:
*
*******************************************************************************/

MV_STATUS mvCtrlAttribGet(MV_TARGET target,
						  MV_TARGET_ATTRIB *targetAttrib)
{

	targetAttrib->attrib = mvTargetDefaultsArray[MV_CHANGE_BOOT_CS(target)].attrib;
	targetAttrib->targetId = mvTargetDefaultsArray[MV_CHANGE_BOOT_CS(target)].targetId;

	return MV_OK;

}

/*******************************************************************************
* mvCtrlGetAttrib - 
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*
* RETURN:
*
*******************************************************************************/
MV_TARGET mvCtrlTargetGet(MV_TARGET_ATTRIB *targetAttrib)
{
	MV_TARGET target;
	MV_TARGET x;
	for (target = SDRAM_CS0; target < MAX_TARGETS ; target ++)
	{
		x = MV_CHANGE_BOOT_CS(target);
		if ((mvTargetDefaultsArray[x].attrib == targetAttrib->attrib) &&
			(mvTargetDefaultsArray[MV_CHANGE_BOOT_CS(target)].targetId == targetAttrib->targetId))
		{
			/* found it */
			break;
		}
	}

	return target;
}

MV_STATUS mvCtrlAddrDecToParams(MV_DEC_WIN *pAddrDecWin, 
                                MV_DEC_WIN_PARAMS *pWinParam)
{
	MV_U32 baseToReg=0, sizeToReg=0;
    
	/* BaseLow[31:16] => base register [31:16]		*/
	baseToReg = pAddrDecWin->addrWin.baseLow & CTRL_DEC_BASE_MASK;

	/* Write to address decode Base Address Register                  */
	pWinParam->baseAddr &= ~CTRL_DEC_BASE_MASK;
	pWinParam->baseAddr |= baseToReg;

	/* Get size register value according to window size						*/
	sizeToReg = ctrlSizeToReg(pAddrDecWin->addrWin.size, CTRL_DEC_SIZE_ALIGNMENT);
	
	/* Size parameter validity check.                                   */
	if (-1 == sizeToReg)
	{
        mvOsPrintf("mvCtrlAddrDecToParams: ERR. ctrlSizeToReg failed.\n");
		return MV_BAD_PARAM;
	}
    pWinParam->size = sizeToReg;

    pWinParam->attrib   = mvTargetDefaultsArray[MV_CHANGE_BOOT_CS(pAddrDecWin->target)].attrib;
    pWinParam->targetId = mvTargetDefaultsArray[MV_CHANGE_BOOT_CS(pAddrDecWin->target)].targetId;

    return MV_OK;
}

MV_STATUS mvCtrlParamsToAddrDec(MV_DEC_WIN_PARAMS *pWinParam, 
                                MV_DEC_WIN *pAddrDecWin)
{
    MV_TARGET_ATTRIB    targetAttrib;

    pAddrDecWin->addrWin.baseLow = pWinParam->baseAddr;
	
	/* Upper 32bit address base is supported under PCI High Address remap */
	pAddrDecWin->addrWin.baseHigh = 0;	

	/* Prepare sizeReg to ctrlRegToSize function */
    pAddrDecWin->addrWin.size = ctrlRegToSize(pWinParam->size, CTRL_DEC_SIZE_ALIGNMENT);

	if (-1 == pAddrDecWin->addrWin.size)
	{
		DB(mvOsPrintf("mvCtrlParamsToAddrDec: ERR. ctrlRegToSize failed.\n"));
		return MV_BAD_PARAM;
	}
    targetAttrib.targetId = pWinParam->targetId;
    targetAttrib.attrib = pWinParam->attrib;

    pAddrDecWin->target = mvCtrlTargetGet(&targetAttrib);

    return MV_OK;
}