/*******************************************************************************
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********************************************************************************
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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:

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

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

/* includes */
#include "mvCommon.h"
#include "mvOs.h"
#include "ctrlEnv/mvCtrlEnvSpec.h"
#include "ctrlEnv/mvCtrlEnvAddrDec.h"
#include "ctrlEnv/mvCtrlEnvLib.h"
#include "boardEnv/mvBoardEnvLib.h"
#include "sys/mvCpuIf.h"

#undef MV_DEBUG

/* defines  */
#ifdef MV_DEBUG
#define DB(x)	x
#else
#define DB(x)
#endif

/* Default Attributes array */
MV_TARGET_ATTRIB mvTargetDefaultsArrayMsys[] = TARGETS_DEF_ARRAY;
MV_TARGET_ATTRIB mvTargetDefaultsArrayAxp[] = TARGETS_DEF_ARRAY_AXP;

/*******************************************************************************
* mvCtrlAttribGet -
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*
* RETURN:
*
*******************************************************************************/
MV_STATUS mvCtrlAttribGet(MV_TARGET target, MV_TARGET_ATTRIB *targetAttrib)
{
	MV_TARGET_ATTRIB *mvTargetDefaultsArray;

	if (mvCtrlDevFamilyIdGet(0) == MV_78460_DEV_ID)
		mvTargetDefaultsArray = mvTargetDefaultsArrayAxp;
	else
		mvTargetDefaultsArray = mvTargetDefaultsArrayMsys;

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

	return MV_OK;
}
/*******************************************************************************/
MV_STATUS mvCtrlAttribSet(MV_TARGET target, MV_TARGET_ATTRIB *targetAttrib)
{
	MV_TARGET_ATTRIB *mvTargetDefaultsArray;

	if (mvCtrlDevFamilyIdGet(0) == MV_78460_DEV_ID)
		mvTargetDefaultsArray = mvTargetDefaultsArrayAxp;
	else
		mvTargetDefaultsArray = mvTargetDefaultsArrayMsys;

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

	return MV_OK;
}

/*******************************************************************************
* mvCtrlGetAttrib -
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*
* RETURN:
*
*******************************************************************************/
MV_TARGET mvCtrlTargetGet(MV_TARGET_ATTRIB *targetAttrib)
{
	MV_TARGET target;
	MV_TARGET x;
	MV_TARGET_ATTRIB *mvTargetDefaultsArray;

	if (mvCtrlDevFamilyIdGet(0) == MV_78460_DEV_ID)
		mvTargetDefaultsArray = mvTargetDefaultsArrayAxp;
	else
		mvTargetDefaultsArray = mvTargetDefaultsArrayMsys;

	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;
}

/*******************************************************************************
* mvCtrlTargetByWinInfoGet -
*
* DESCRIPTION:
*
* INPUT:
*
* OUTPUT:
*
* RETURN:
*
*******************************************************************************/
MV_TARGET mvCtrlTargetByWinInfoGet(MV_UNIT_WIN_INFO *unitWinInfo)
{
	MV_TARGET target;
	MV_TARGET x;
	MV_TARGET_ATTRIB *mvTargetDefaultsArray;

	if (mvCtrlDevFamilyIdGet(0) == MV_78460_DEV_ID)
		mvTargetDefaultsArray = mvTargetDefaultsArrayAxp;
	else
		mvTargetDefaultsArray = mvTargetDefaultsArrayMsys;

	for (target = SDRAM_CS0; target < MAX_TARGETS; target++) {
		x = MV_CHANGE_BOOT_CS(target);
		if ((mvTargetDefaultsArray[x].attrib == unitWinInfo->attrib) &&
		    (mvTargetDefaultsArray[MV_CHANGE_BOOT_CS(target)].targetId == unitWinInfo->targetId)) {
			/* found it */
			break;
		}
	}

	return target;
}

/*******************************************************************************
* mvCtrlAddrWinMapBuild
*
* DESCRIPTION:
*	Build the windows address decoding table, to be used for initializing
*	the unit's address decoding windows.
*
* INPUT:
*	pAddrWinMap: An array to hold the address decoding windows parameters.
*	len: Number of entries in pAddrWinMap.
*
* OUTPUT:
*	pAddrWinMap: Address window information.
*
* RETURN:
*	MV_BAD_PARAM: input array is smaller than needed to store all window
*	addresses.
*	MV_ERROR: Otherwise.
*
*******************************************************************************/
MV_STATUS mvCtrlAddrWinMapBuild(MV_UNIT_WIN_INFO *pAddrWinMap, MV_U32 len)
{
	MV_CPU_DEC_WIN cpuAddrDecWin;
	MV_U32 i, j;
	MV_TARGET_ATTRIB targetAttrib;
	MV_STATUS status;
	MV_U64 startAddr, endAddr;
	MV_UNIT_WIN_INFO ioDdrWin[MV_DRAM_MAX_CS];
	MV_U32 base;
	MV_U64 size;

	/* Check size of CPU address win table */
	if (len <= MAX_TARGETS) {
		mvOsPrintf("mvCtrlAddrWinMapBuild() - Table size too small.\n");
		return MV_BAD_PARAM;
	}

	/* Prepare an array of DRAM info */
	base = 0x0;
	j = 0;
	for (i = SDRAM_CS0; i <= SDRAM_CS3; i++) {
		status = mvCpuIfTargetWinGet(i, &cpuAddrDecWin);
		if (status != MV_OK) {
			if (status == MV_NO_SUCH) {
				ioDdrWin[i].enable = MV_FALSE;
				continue;
			} else {
				mvOsPrintf("mvCtrlAddrWinMapBuild() - mvCpuIfTargetWinGet() failed.\n");
				return MV_ERROR;
			}
		}

		/* As all IO address decode windows support only 32-bit
		** addresses, limit the DRAM base / size to 4GB max.
		*/
		startAddr = (MV_U64)((((MV_U64)cpuAddrDecWin.addrWin.baseHigh << 32ll)) +
				(MV_U64)cpuAddrDecWin.addrWin.baseLow);
		endAddr = (MV_U64)(startAddr + (MV_U64)cpuAddrDecWin.addrWin.size) - 1;
		if (endAddr > 0xFFFFFFFFll) {
			if (startAddr <= 0xFFFFFFFFll)
				cpuAddrDecWin.addrWin.size = (0x100000000ll -
						cpuAddrDecWin.addrWin.baseLow);
			else
				cpuAddrDecWin.enable = MV_FALSE;
		}

		if (cpuAddrDecWin.enable == MV_FALSE)
			continue;

		/* If the endAddr passes minBase, then we need to split
		** this window to several windows up to minBase.
		** For example: minBase=0xE0000000, and CS0=2, CS1=2G,
		** Then we need to split the windwos as follows:
		** Win0: CS-0, 2GB (Base 0x0)
		** win1: CS-1, 1GB (Base 0x80000000)
		** Win2: CS-1, 0.5GB (Base 0xC0000000)
		*/
		if (endAddr > MV_DRAM_IO_RESERVE_BASE)
			/* Need to cut down this CS to IO reserve base
			** address.
			*/
			size = MV_DRAM_IO_RESERVE_BASE -
				cpuAddrDecWin.addrWin.baseLow;
		else
			size = cpuAddrDecWin.addrWin.size;

		if (mvCtrlAttribGet(i, &targetAttrib) != MV_OK) {
			mvOsPrintf("mvCtrlAddrWinMapBuild() - "
					"mvCtrlAttribGet() failed.\n");
			return MV_ERROR;
		}
		/* Now, spread the last CS into several windows, and make sure
		** that each of has a power-of-2 size.
		*/
		while (size != 0) {
			ioDdrWin[j].enable = MV_TRUE;
			ioDdrWin[j].attrib = targetAttrib.attrib;
			ioDdrWin[j].targetId = targetAttrib.targetId;
			ioDdrWin[j].addrWin.baseHigh = 0;
			if (MV_IS_POWER_OF_2(size))
				ioDdrWin[j].addrWin.size = size;
			else
				ioDdrWin[j].addrWin.size = (MV_U64)(1ll << (MV_U64)mvLog2(size));
			size -= ioDdrWin[j].addrWin.size;
			ioDdrWin[j].addrWin.baseLow = base;
			base += ioDdrWin[j].addrWin.size;
			j++;
		}
		/* Support only up to 4 DRAM address decode windows in the
		** units. */
		if (j == MV_DRAM_MAX_CS)
			break;
	}

	for (; j < MV_DRAM_MAX_CS; j++)
		ioDdrWin[j].enable = MV_FALSE;

	/* Fill in the pAddrWinMap fields       */
	for (i = 0; i < MAX_TARGETS; i++) {
		if (MV_TARGET_IS_DRAM(i)) {
			pAddrWinMap[i].addrWin.baseLow = ioDdrWin[i].addrWin.baseLow;
			pAddrWinMap[i].addrWin.baseHigh = ioDdrWin[i].addrWin.baseHigh;
			pAddrWinMap[i].addrWin.size = ioDdrWin[i].addrWin.size;
			pAddrWinMap[i].enable = ioDdrWin[i].enable;
			pAddrWinMap[i].attrib = ioDdrWin[i].attrib;
			pAddrWinMap[i].targetId = ioDdrWin[i].targetId;
		} else {
			status = mvCpuIfTargetWinGet(i, &cpuAddrDecWin);
			if (status != MV_OK) {
				if (status == MV_NO_SUCH) {
					pAddrWinMap[i].enable = MV_FALSE;
					continue;
				} else {
					mvOsPrintf("mvCtrlAddrWinMapBuild()"
					" - mvCpuIfTargetWinGet() failed.\n");
					return MV_ERROR;
				}
			}

			pAddrWinMap[i].addrWin.baseLow =
				cpuAddrDecWin.addrWin.baseLow;
			pAddrWinMap[i].addrWin.baseHigh =
				cpuAddrDecWin.addrWin.baseHigh;
			pAddrWinMap[i].addrWin.size =
				cpuAddrDecWin.addrWin.size;
			pAddrWinMap[i].enable = cpuAddrDecWin.enable;

			if (mvCtrlAttribGet(i, &targetAttrib) != MV_OK) {
				mvOsPrintf("mvCtrlAddrWinMapBuild() - "
						"mvCtrlAttribGet() failed.\n");
				return MV_ERROR;
			}
			pAddrWinMap[i].attrib = targetAttrib.attrib;
			pAddrWinMap[i].targetId = targetAttrib.targetId;
		}
	}
	pAddrWinMap[i].addrWin.baseLow = TBL_TERM;
	pAddrWinMap[i].addrWin.baseHigh = TBL_TERM;
	pAddrWinMap[i].addrWin.size = TBL_TERM;
	pAddrWinMap[i].enable = TBL_TERM;
	pAddrWinMap[i].attrib = TBL_TERM;
	pAddrWinMap[i].targetId = TBL_TERM;

	return MV_OK;
}

MV_STATUS mvCtrlAddrWinInfoGet(MV_UNIT_WIN_INFO *pAddrWinInfo, MV_ULONG physAddr)
{
	MV_CPU_DEC_WIN cpuAddrDecWin;
	MV_U32 i;
	MV_TARGET_ATTRIB targetAttrib;
	MV_STATUS status;

	for (i = 0; i < MAX_TARGETS; i++) {
		status = mvCpuIfTargetWinGet(i, &cpuAddrDecWin);
		if (status != MV_OK)
			continue;

		if ((physAddr >= cpuAddrDecWin.addrWin.baseLow) &&
		    (physAddr < cpuAddrDecWin.addrWin.baseLow + cpuAddrDecWin.addrWin.size)) {
			/* Found */
			pAddrWinInfo->addrWin.baseLow = cpuAddrDecWin.addrWin.baseLow;
			pAddrWinInfo->addrWin.baseHigh = cpuAddrDecWin.addrWin.baseHigh;
			pAddrWinInfo->addrWin.size = cpuAddrDecWin.addrWin.size;

			if (mvCtrlAttribGet(i, &targetAttrib) != MV_OK) {
				mvOsPrintf("mvCtrlAddrWinMapBuild() - mvCtrlAttribGet() failed.\n");
				return MV_ERROR;
			}
			pAddrWinInfo->attrib = targetAttrib.attrib;
			pAddrWinInfo->targetId = targetAttrib.targetId;
			return MV_OK;
		}
	}
	/* not found */
	return MV_NOT_FOUND;
}