/*******************************************************************************
Copyright (C) Marvell International Ltd. and its affiliates

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********************************************************************************
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*******************************************************************************/
#include "pci/mvPci.h"
#include "ctrlEnv/mvCtrlEnvLib.h"
#include "ctrlEnv/mvCtrlEnvSpec.h"

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

/*******************************************************************************
* mvPciHalInit - Initialize the PCI HAL layer
*
* DESCRIPTION:
*       This function performs basic initialization for the PCI interface
*
* INPUT:
*       pciIf	- PCI interface number.
*       pciIfmod- Interface mode (Host or endpoint)
*
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_VOID mvPciHalInit(MV_U32 pciIf, MV_PCI_MOD pciIfmod)
{
	if (MV_PCI_MOD_HOST == pciIfmod) {
                mvPciLocalBusNumSet(pciIf, PCI_HOST_BUS_NUM(pciIf));
                mvPciLocalDevNumSet(pciIf, PCI_HOST_DEV_NUM(pciIf));
        
                /* Local device master Enable */
                mvPciMasterEnable(pciIf, MV_TRUE);
        
                /* Local device slave Enable */
                mvPciSlaveEnable(pciIf, mvPciLocalBusNumGet(pciIf), mvPciLocalDevNumGet(pciIf), MV_TRUE);
        }

        /* enable CPU-2-PCI ordering */
        MV_REG_BIT_SET(PCI_CMD_REG(0), PCR_CPU_TO_PCI_ORDER_EN);
}

/*******************************************************************************
* mvPciCommandSet - Set PCI comman register value.
*
* DESCRIPTION:
*       This function sets a given PCI interface with its command register 
*       value.
*
* INPUT:
*       pciIf   - PCI interface number.
*       command - 32bit value to be written to comamnd register.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_BAD_PARAM if pciIf is not in range otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciCommandSet(MV_U32 pciIf, MV_U32 command)
{
	MV_U32 locBusNum, locDevNum, regVal;

	locBusNum =  mvPciLocalBusNumGet(pciIf);
	locDevNum =  mvPciLocalDevNumGet(pciIf);

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet()) {
		mvOsPrintf("mvPciCommandSet: ERR. Invalid PCI IF num %d\n", pciIf);
		return MV_BAD_PARAM;
	}

	/* Set command register */
	MV_REG_WRITE(PCI_CMD_REG(pciIf), command);

	/* Upodate device max outstanding split tarnsaction */
	if ((command & PCR_CPU_TO_PCI_ORDER_EN) && (command & PCR_PCI_TO_CPU_ORDER_EN)) {
	        /* Read PCI-X command register */
        	regVal = mvPciConfigRead (pciIf, locBusNum, locDevNum, 0, PCIX_COMMAND);
                        
	        /* clear bits 22:20 */
        	regVal &= 0xff8fffff;

	        /* set reset value */
        	regVal |= (0x3 << 20);
        
	        /* Write back the value */
        	mvPciConfigWrite (pciIf, locBusNum, locDevNum, 0, PCIX_COMMAND, regVal);
	}

	return MV_OK;
}


/*******************************************************************************
* mvPciModeGet - Get PCI interface mode.
*
* DESCRIPTION:
*       This function returns the given PCI interface mode.
*
* INPUT:
*       pciIf   - PCI interface number.
*
* OUTPUT:
*       pPciMode - Pointer to PCI mode structure.
*
* RETURN:
*       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciModeGet(MV_U32 pciIf, MV_PCI_MODE *pPciMode)
{
	MV_U32 pciMode;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciModeGet: ERR. Invalid PCI interface %d\n", pciIf);
		return MV_BAD_PARAM;
	}
	if (NULL == pPciMode)
	{
		mvOsPrintf("mvPciModeGet: ERR. pPciMode = NULL  \n");
		return MV_BAD_PARAM;
	}

	/* Read pci mode register */
	pciMode = MV_REG_READ(PCI_MODE_REG(pciIf));
	
	switch (pciMode & PMR_PCI_MODE_MASK)
	{
		case PMR_PCI_MODE_CONV:
			pPciMode->pciType  = MV_PCI_CONV;

			if (MV_REG_READ(PCI_DLL_CTRL_REG(pciIf)) & PDC_DLL_EN)
				pPciMode->pciSpeed = 66000000; /* 66MHZ */
			else
				pPciMode->pciSpeed = 33000000; /* 33MHZ */
			
			break;
		
		case PMR_PCI_MODE_PCIX_66MHZ:	
			pPciMode->pciType  = MV_PCIX;
			pPciMode->pciSpeed = 66000000; /* 66MHZ */	
			break;
		
		case PMR_PCI_MODE_PCIX_100MHZ:	
			pPciMode->pciType  = MV_PCIX;
			pPciMode->pciSpeed = 100000000; /* 100MHZ */	
			break;
		
		case PMR_PCI_MODE_PCIX_133MHZ:	
			pPciMode->pciType  = MV_PCIX;
			pPciMode->pciSpeed = 133000000; /* 133MHZ */	
			break;

		default:
			mvOsPrintf("mvPciModeGet: ERR. Non existing mode !!\n");
			return MV_ERROR;
	}

	switch (pciMode & PMR_PCI_64_MASK)
	{
		case PMR_PCI_64_64BIT:
			pPciMode->pciWidth = MV_PCI_64;
			break;
		
		case PMR_PCI_64_32BIT:
            		pPciMode->pciWidth = MV_PCI_32;
			break;
		
		default:
			mvOsPrintf("mvPciModeGet: ERR. Non existing mode !!\n");
			return MV_ERROR;
	}
	
	return MV_OK;
}

/*******************************************************************************
* mvPciRetrySet - Set PCI retry counters
*
* DESCRIPTION:
*       This function specifies the number of times the PCI controller 
*       retries a transaction before it quits.
*       Applies to the PCI Master when acting as a requester.
*       Applies to the PCI slave when acting as a completer (PCI-X mode).
*       A 0x00 value means a "retry forever".
*
* INPUT:
*       pciIf   - PCI interface number.
*       counter - Number of times PCI controller retry. Use counter value 
*                 up to PRR_RETRY_CNTR_MAX.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciRetrySet(MV_U32 pciIf, MV_U32 counter)
{
	MV_U32 pciRetry;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciRetrySet: ERR. Invalid PCI interface %d\n", pciIf);
		return MV_BAD_PARAM;
	}

	if (counter >= PRR_RETRY_CNTR_MAX)
	{
		mvOsPrintf("mvPciRetrySet: ERR. Invalid counter: %d\n", counter);
		return MV_BAD_PARAM;

	}

	/* Reading PCI retry register */
    pciRetry  = MV_REG_READ(PCI_RETRY_REG(pciIf));

	pciRetry &= ~PRR_RETRY_CNTR_MASK;

	pciRetry |= (counter << PRR_RETRY_CNTR_OFFS);

	/* write new value */
	MV_REG_WRITE(PCI_RETRY_REG(pciIf), pciRetry);

	return MV_OK;
}


/*******************************************************************************
* mvPciDiscardTimerSet - Set PCI discard timer
*
* DESCRIPTION:
*       This function set PCI discard timer.
*       In conventional PCI mode:
*       Specifies the number of PCLK cycles the PCI slave keeps a non-accessed
*       read buffers (non-completed delayed read) before invalidate the buffer.
*       Set to '0' to disable the timer. The PCI slave waits for delayed 
*       read completion forever.
*       In PCI-X mode:
*       Specifies the number of PCLK cycles the PCI master waits for split
*       completion transaction, before it invalidates the pre-allocated read
*       buffer.
*       Set to '0' to disable the timer. The PCI master waits for split 
*       completion forever.
*       NOTE: Must be set to a number greater than MV_PCI_MAX_DISCARD_CLK, 
*       unless using the "wait for ever" setting 0x0.
*       NOTE: Must not be updated while there are pending read requests.
*
* INPUT:
*       pciIf      - PCI interface number.
*       pClkCycles - Number of PCI clock cycles.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciDiscardTimerSet(MV_U32 pciIf, MV_U32 pClkCycles)
{
	MV_U32 pciDiscardTimer;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciDiscardTimerSet: ERR. Invalid PCI interface %d\n", 
																		pciIf);
		return MV_BAD_PARAM;
	}

	if (pClkCycles >= PDTR_TIMER_MIN)
	{
		mvOsPrintf("mvPciDiscardTimerSet: ERR. Invalid Clk value: %d\n", 	
																   pClkCycles);
		return MV_BAD_PARAM;

	}

	/* Read  PCI Discard Timer */
	pciDiscardTimer  = MV_REG_READ(PCI_DISCARD_TIMER_REG(pciIf));

	pciDiscardTimer &= ~PDTR_TIMER_MASK;

    pciDiscardTimer |= (pClkCycles << PDTR_TIMER_OFFS);

	/* Write new value */
	MV_REG_WRITE(PCI_DISCARD_TIMER_REG(pciIf), pciDiscardTimer);

	return MV_OK;

}

/* PCI Arbiter routines */

/*******************************************************************************
* mvPciArbEnable - PCI arbiter enable/disable
*
* DESCRIPTION:
*       This fuction enable/disables a given PCI interface arbiter.
*       NOTE: Arbiter setting can not be changed while in work. It should only 
*             be set once.
* INPUT:
*       pciIf  - PCI interface number.
*       enable - Enable/disable parameter. If enable = MV_TRUE then enable.
*
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_STATUS mvPciArbEnable(MV_U32 pciIf, MV_BOOL enable)
{
	MV_U32 regVal;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciArbEnable: ERR. Invalid PCI interface %d\n", pciIf);
		return MV_ERROR;
	}
    	
    /* Set PCI Arbiter Control register according to default configuration 	*/
	regVal = MV_REG_READ(PCI_ARBITER_CTRL_REG(pciIf));

	/* Make sure arbiter disabled before changing its values */
	MV_REG_BIT_RESET(PCI_ARBITER_CTRL_REG(pciIf), PACR_ARB_ENABLE); 

	regVal &= ~PCI_ARBITER_CTRL_DEFAULT_MASK;	

	regVal |= PCI_ARBITER_CTRL_DEFAULT;		/* Set default configuration	*/

	if (MV_TRUE == enable)
	{
		regVal |= PACR_ARB_ENABLE; 
	}
	else
	{
		regVal &= ~PACR_ARB_ENABLE; 
	}

	/* Write to register 										            */
	MV_REG_WRITE(PCI_ARBITER_CTRL_REG(pciIf), regVal);

	return MV_OK;	
}


/*******************************************************************************
* mvPciArbParkDis - Disable arbiter parking on agent
*
* DESCRIPTION:
*       This function disables the PCI arbiter from parking on the given agent
*       list.
*
* INPUT:
*       pciIf        - PCI interface number.
*       pciAgentMask - When a bit in the mask is set to '1', parking on 
*                      the associated PCI master is disabled. Mask bit 
*                      refers to bit 0 - 6. For example disable parking on PCI
*                      agent 3 set pciAgentMask 0x4 (bit 3 is set).
*
* OUTPUT:
*       None.
*
* RETURN:
*       None.
*
*******************************************************************************/
MV_STATUS mvPciArbParkDis(MV_U32 pciIf, MV_U32 pciAgentMask)
{
	MV_U32 pciArbiterCtrl;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciArbParkDis: ERR. Invalid PCI interface %d\n", pciIf);
		return MV_ERROR;
	}

	/* Reading Arbiter Control register */
	pciArbiterCtrl = MV_REG_READ(PCI_ARBITER_CTRL_REG(pciIf));

	/* Arbiter must be disabled before changing parking */
	MV_REG_BIT_RESET(PCI_ARBITER_CTRL_REG(pciIf), PACR_ARB_ENABLE); 

	/* do the change */
    pciArbiterCtrl &= ~PACR_PARK_DIS_MASK;
	pciArbiterCtrl |= (pciAgentMask << PACR_PARK_DIS_OFFS);

	/* writing new value ( if th earbiter was enabled before the change		*/ 
	/* here it will be reenabled 											*/
	MV_REG_WRITE(PCI_ARBITER_CTRL_REG(pciIf), pciArbiterCtrl);

	return MV_OK;
}


/*******************************************************************************
* mvPciArbBrokDetectSet - Set PCI arbiter broken detection
*
* DESCRIPTION:
*       This function sets the maximum number of cycles that the arbiter 
*       waits for a PCI master to respond to its grant assertion. If a 
*       PCI agent fails to respond within this time, the PCI arbiter aborts 
*       the transaction and performs a new arbitration cycle.
*       NOTE: Value must be greater than '1' for conventional PCI and 
*       greater than '5' for PCI-X.
*
* INPUT:
*       pciIf      - PCI interface number.
*       pClkCycles - Number of PCI clock cycles. If equal to '0' the broken
*                    master detection is disabled.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciArbBrokDetectSet(MV_U32 pciIf, MV_U32 pClkCycles)
{
	MV_U32 pciArbiterCtrl;
	MV_U32 pciMode;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciArbBrokDetectSet: ERR. Invalid PCI interface %d\n", 
																		pciIf);
		return MV_BAD_PARAM;
	}

	/* Checking PCI mode and if pClkCycles is legal value */
	pciMode = MV_REG_READ(PCI_MODE_REG(pciIf));
	pciMode &= PMR_PCI_MODE_MASK;

	if (PMR_PCI_MODE_CONV == pciMode)
	{
		if (pClkCycles < PACR_BROKEN_VAL_CONV_MIN) 
			return MV_ERROR;
	}
	else
	{
		if (pClkCycles < PACR_BROKEN_VAL_PCIX_MIN) 
			return MV_ERROR;
	}

	pClkCycles <<= PACR_BROKEN_VAL_OFFS;

	/* Reading Arbiter Control register */
	pciArbiterCtrl  = MV_REG_READ(PCI_ARBITER_CTRL_REG(pciIf));
	pciArbiterCtrl &= ~PACR_BROKEN_VAL_MASK;
	pciArbiterCtrl |= pClkCycles;

	/* Arbiter must be disabled before changing broken detection */
	MV_REG_BIT_RESET(PCI_ARBITER_CTRL_REG(pciIf), PACR_ARB_ENABLE); 

	/* writing new value ( if th earbiter was enabled before the change 	*/
	/* here it will be reenabled 											*/

	MV_REG_WRITE(PCI_ARBITER_CTRL_REG(pciIf), pciArbiterCtrl);

	return MV_OK;
}

/* PCI configuration space read write */

/*******************************************************************************
* mvPciConfigRead - Read from configuration space
*
* DESCRIPTION:
*       This function performs a 32 bit read from PCI configuration space.
*       It supports both type 0 and type 1 of Configuration Transactions 
*       (local and over bridge). In order to read from local bus segment, use 
*       bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers 
*       will result configuration transaction of type 1 (over bridge).
*
* INPUT:
*       pciIf   - PCI interface number.
*       bus     - PCI segment bus number.
*       dev     - PCI device number.
*       func    - Function number.
*       regOffs - Register offset.       
*
* OUTPUT:
*       None.
*
* RETURN:
*       32bit register data, 0xffffffff on error
*
*******************************************************************************/
MV_U32 mvPciConfigRead (MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_U32 func, 
                        MV_U32 regOff)
{
	MV_U32 pciData = 0;

	/* Parameter checking   */
	if (PCI_DEFAULT_IF != pciIf)
	{
		if (pciIf >= mvCtrlPciMaxIfGet())
		{
			mvOsPrintf("mvPciConfigRead: ERR. Invalid PCI interface %d\n",pciIf);
			return 0xFFFFFFFF;
		}
	}

	if (dev >= MAX_PCI_DEVICES)
	{
		DB(mvOsPrintf("mvPciConfigRead: ERR. device number illigal %d\n", dev));
		return 0xFFFFFFFF;
	}
	
	if (func >= MAX_PCI_FUNCS)
	{
		DB(mvOsPrintf("mvPciConfigRead: ERR. function number illigal %d\n", func));
		return 0xFFFFFFFF;
	}
	
	if (bus >= MAX_PCI_BUSSES)
	{
		DB(mvOsPrintf("mvPciConfigRead: ERR. bus number illigal %d\n", bus));
		return MV_ERROR;
	}


	/* Creating PCI address to be passed */
	pciData |= (bus << PCAR_BUS_NUM_OFFS);
	pciData |= (dev << PCAR_DEVICE_NUM_OFFS);
	pciData |= (func << PCAR_FUNC_NUM_OFFS);
	pciData |= (regOff & PCAR_REG_NUM_MASK);

	pciData |= PCAR_CONFIG_EN; 
	
	/* Write the address to the PCI configuration address register */
	MV_REG_WRITE(PCI_CONFIG_ADDR_REG(pciIf), pciData);

	/* In order to let the PCI controller absorbed the address of the read 	*/
	/* transaction we perform a validity check that the address was written */
	if(pciData != MV_REG_READ(PCI_CONFIG_ADDR_REG(pciIf)))
	{
		return MV_ERROR;
	}
	/* Read the Data returned in the PCI Data register */
	pciData = MV_REG_READ(PCI_CONFIG_DATA_REG(pciIf));

	return pciData;
}

/*******************************************************************************
* mvPciConfigWrite - Write to configuration space
*
* DESCRIPTION:
*       This function performs a 32 bit write to PCI configuration space.
*       It supports both type 0 and type 1 of Configuration Transactions 
*       (local and over bridge). In order to write to local bus segment, use 
*       bus number retrieved from mvPciLocalBusNumGet(). Other bus numbers 
*       will result configuration transaction of type 1 (over bridge).
*
* INPUT:
*       pciIf   - PCI interface number.
*       bus     - PCI segment bus number.
*       dev     - PCI device number.
*       func    - Function number.
*       regOffs - Register offset.       
*       data    - 32bit data.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciConfigWrite(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, 
                           MV_U32 func, MV_U32 regOff, MV_U32 data)
{
	MV_U32 pciData = 0;

	/* Parameter checking   */
	if (PCI_DEFAULT_IF != pciIf)
	{
		if (pciIf >= mvCtrlPciMaxIfGet())
		{
			mvOsPrintf("mvPciConfigWrite: ERR. Invalid PCI interface %d\n", 
																		pciIf);
			return 0xFFFFFFFF;
		}
	}

	if (dev >= MAX_PCI_DEVICES)
	{
		mvOsPrintf("mvPciConfigWrite: ERR. device number illigal %d\n",dev);
		return MV_BAD_PARAM;
	}

	if (func >= MAX_PCI_FUNCS)
	{
		mvOsPrintf("mvPciConfigWrite: ERR. function number illigal %d\n", func);
		return MV_ERROR;
	}

	if (bus >= MAX_PCI_BUSSES)
	{
		mvOsPrintf("mvPciConfigWrite: ERR. bus number illigal %d\n", bus);
		return MV_ERROR;
	}

	/* Creating PCI address to be passed */
	pciData |= (bus << PCAR_BUS_NUM_OFFS);
	pciData |= (dev << PCAR_DEVICE_NUM_OFFS);
	pciData |= (func << PCAR_FUNC_NUM_OFFS);
	pciData |= (regOff & PCAR_REG_NUM_MASK);

	pciData |= PCAR_CONFIG_EN;
	
	/* Write the address to the PCI configuration address register */
	MV_REG_WRITE(PCI_CONFIG_ADDR_REG(pciIf), pciData);

	/* In order to let the PCI controller absorbed the address of the read 	*/
	/* transaction we perform a validity check that the address was written */
	if(pciData != MV_REG_READ(PCI_CONFIG_ADDR_REG(pciIf)))
	{
		return MV_ERROR;
	}

	/* Write the Data passed to the PCI Data register */
	MV_REG_WRITE(PCI_CONFIG_DATA_REG(pciIf), data);

	return MV_OK;
}

/*******************************************************************************
* mvPciMasterEnable - Enable/disale PCI interface master transactions.
*
* DESCRIPTION:
*       This function performs read modified write to PCI command status 
*       (offset 0x4) to set/reset bit 2. After this bit is set, the PCI 
*       master is allowed to gain ownership on the bus, otherwise it is 
*       incapable to do so.
*
* INPUT:
*       pciIf  - PCI interface number.
*       enable - Enable/disable parameter.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciMasterEnable(MV_U32 pciIf, MV_BOOL enable)
{
	MV_U32 pciCommandStatus;
	MV_U32 RegOffs;
	MV_U32 localBus;
	MV_U32 localDev;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciMasterEnable: ERR. Invalid PCI interface %d\n", pciIf);
		return MV_ERROR;
	}

	localBus = mvPciLocalBusNumGet(pciIf);
	localDev = mvPciLocalDevNumGet(pciIf);
	
	RegOffs = PCI_STATUS_AND_COMMAND;

	pciCommandStatus = mvPciConfigRead(pciIf, localBus, localDev, 0, RegOffs);

	if (MV_TRUE == enable)
	{
		pciCommandStatus |= PSCR_MASTER_EN;
	}
	else
	{
		pciCommandStatus &= ~PSCR_MASTER_EN;
	}

	mvPciConfigWrite(pciIf, localBus, localDev, 0, RegOffs, pciCommandStatus);

	return MV_OK;
}


/*******************************************************************************
* mvPciSlaveEnable - Enable/disale PCI interface slave transactions.
*
* DESCRIPTION:
*       This function performs read modified write to PCI command status 
*       (offset 0x4) to set/reset bit 0 and 1. After those bits are set, 
*       the PCI slave is allowed to respond to PCI IO space access (bit 0) 
*       and PCI memory space access (bit 1). 
*
* INPUT:
*       pciIf  - PCI interface number.
*       dev     - PCI device number.
*       enable - Enable/disable parameter.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_BAD_PARAM for bad parameters ,MV_ERROR on error ! otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciSlaveEnable(MV_U32 pciIf, MV_U32 bus, MV_U32 dev, MV_BOOL enable)
{
	MV_U32 pciCommandStatus;
	MV_U32 RegOffs;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciSlaveEnable: ERR. Invalid PCI interface %d\n", pciIf);
		return MV_BAD_PARAM;
	}
	if (dev >= MAX_PCI_DEVICES)
	{
		mvOsPrintf("mvPciLocalDevNumSet: ERR. device number illigal %d\n", dev);
		return MV_BAD_PARAM;

	}

	RegOffs = PCI_STATUS_AND_COMMAND;
	
	pciCommandStatus=mvPciConfigRead(pciIf, bus, dev, 0, RegOffs);

    if (MV_TRUE == enable)
	{
		pciCommandStatus |= (PSCR_IO_EN | PSCR_MEM_EN);
	}
	else                             
	{
		pciCommandStatus &= ~(PSCR_IO_EN | PSCR_MEM_EN);
	}

	mvPciConfigWrite(pciIf, bus, dev, 0, RegOffs, pciCommandStatus);

	return MV_OK;
}

/*******************************************************************************
* mvPciLocalBusNumSet - Set PCI interface local bus number.
*
* DESCRIPTION:
*       This function sets given PCI interface its local bus number.
*       Note: In case the PCI interface is PCI-X, the information is read-only.
*
* INPUT:
*       pciIf  - PCI interface number.
*       busNum - Bus number.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_NOT_ALLOWED in case PCI interface is PCI-X. 
*       MV_BAD_PARAM on bad parameters ,
*       otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciLocalBusNumSet(MV_U32 pciIf, MV_U32 busNum)
{
	MV_U32 pciP2PConfig;
	MV_PCI_MODE pciMode;
	MV_U32 localBus;
	MV_U32 localDev;


	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciLocalBusNumSet: ERR. Invalid PCI interface %d\n",pciIf);
		return MV_BAD_PARAM;
	}
	if (busNum >= MAX_PCI_BUSSES)
	{
		mvOsPrintf("mvPciLocalBusNumSet: ERR. bus number illigal %d\n", busNum);
		return MV_ERROR;

	}

	localBus = mvPciLocalBusNumGet(pciIf);
	localDev = mvPciLocalDevNumGet(pciIf);


	/* PCI interface mode */
	mvPciModeGet(pciIf, &pciMode);

	/* if PCI type is PCI-X then it is not allowed to change the dev number */
	if (MV_PCIX == pciMode.pciType)
	{
		pciP2PConfig = mvPciConfigRead(pciIf, localBus, localDev, 0, PCIX_STATUS );

		pciP2PConfig &= ~PXS_BN_MASK;

		pciP2PConfig |= (busNum << PXS_BN_OFFS) & PXS_BN_MASK;

		mvPciConfigWrite(pciIf, localBus, localDev, 0, PCIX_STATUS,pciP2PConfig );

	}
	else
	{
		pciP2PConfig  = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf));

		pciP2PConfig &= ~PPCR_BUS_NUM_MASK;

		pciP2PConfig |= (busNum << PPCR_BUS_NUM_OFFS) & PPCR_BUS_NUM_MASK;

		MV_REG_WRITE(PCI_P2P_CONFIG_REG(pciIf), pciP2PConfig);

	}


	return MV_OK;
}


/*******************************************************************************
* mvPciLocalBusNumGet - Get PCI interface local bus number.
*
* DESCRIPTION:
*       This function gets the local bus number of a given PCI interface.
*
* INPUT:
*       pciIf  - PCI interface number.
*
* OUTPUT:
*       None.
*
* RETURN:
*       Local bus number.0xffffffff on Error
*
*******************************************************************************/
MV_U32 mvPciLocalBusNumGet(MV_U32 pciIf)
{
	MV_U32 pciP2PConfig;

	/* Parameter checking   */
	if (PCI_DEFAULT_IF != pciIf)
	{
		if (pciIf >= mvCtrlPciMaxIfGet())
		{
			mvOsPrintf("mvPciLocalBusNumGet: ERR. Invalid PCI interface %d\n", 
													   					pciIf);
			return 0xFFFFFFFF;
		}
	}

	pciP2PConfig  = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf));
	pciP2PConfig &= PPCR_BUS_NUM_MASK;
	return (pciP2PConfig >> PPCR_BUS_NUM_OFFS);
}


/*******************************************************************************
* mvPciLocalDevNumSet - Set PCI interface local device number.
*
* DESCRIPTION:
*       This function sets given PCI interface its local device number.
*       Note: In case the PCI interface is PCI-X, the information is read-only.
*
* INPUT:
*       pciIf  - PCI interface number.
*       devNum - Device number.
*
* OUTPUT:
*       None.
*
* RETURN:
*       MV_NOT_ALLOWED in case PCI interface is PCI-X. MV_BAD_PARAM on bad parameters ,
*       otherwise MV_OK
*
*******************************************************************************/
MV_STATUS mvPciLocalDevNumSet(MV_U32 pciIf, MV_U32 devNum)
{
	MV_U32 pciP2PConfig;
	MV_PCI_MODE pciMode;
	MV_U32 localBus;
	MV_U32 localDev;

	/* Parameter checking   */
	if (pciIf >= mvCtrlPciMaxIfGet())
	{
		mvOsPrintf("mvPciLocalDevNumSet: ERR. Invalid PCI interface %d\n",pciIf);
		return MV_BAD_PARAM;
	}
	if (devNum >= MAX_PCI_DEVICES)
	{
		mvOsPrintf("mvPciLocalDevNumSet: ERR. device number illigal %d\n", 
																	   devNum);
		return MV_BAD_PARAM;

	}
	
	localBus = mvPciLocalBusNumGet(pciIf);
	localDev = mvPciLocalDevNumGet(pciIf);

	/* PCI interface mode */
	mvPciModeGet(pciIf, &pciMode);

	/* if PCI type is PCIX then it is not allowed to change the dev number */
	if (MV_PCIX == pciMode.pciType)
	{
		pciP2PConfig = mvPciConfigRead(pciIf, localBus, localDev, 0, PCIX_STATUS );

		pciP2PConfig &= ~PXS_DN_MASK;

		pciP2PConfig |= (devNum << PXS_DN_OFFS) & PXS_DN_MASK;

		mvPciConfigWrite(pciIf,localBus, localDev, 0, PCIX_STATUS,pciP2PConfig );
	}
	else
	{
		pciP2PConfig  = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf));

		pciP2PConfig &= ~PPCR_DEV_NUM_MASK;

		pciP2PConfig |= (devNum << PPCR_DEV_NUM_OFFS) & PPCR_DEV_NUM_MASK;

		MV_REG_WRITE(PCI_P2P_CONFIG_REG(pciIf), pciP2PConfig);
	}

	return MV_OK;
}

/*******************************************************************************
* mvPciLocalDevNumGet - Get PCI interface local device number.
*
* DESCRIPTION:
*       This function gets the local device number of a given PCI interface.
*
* INPUT:
*       pciIf  - PCI interface number.
*
* OUTPUT:
*       None.
*
* RETURN:
*       Local device number. 0xffffffff on Error
*
*******************************************************************************/
MV_U32 mvPciLocalDevNumGet(MV_U32 pciIf)
{
	MV_U32 pciP2PConfig;

	/* Parameter checking   */
	
	if (PCI_DEFAULT_IF != pciIf)
	{
		if (pciIf >= mvCtrlPciMaxIfGet())
		{
			mvOsPrintf("mvPciLocalDevNumGet: ERR. Invalid PCI interface %d\n", 
																   		pciIf);
			return 0xFFFFFFFF;
		}
	}
	
	pciP2PConfig  = MV_REG_READ(PCI_P2P_CONFIG_REG(pciIf));

	pciP2PConfig &= PPCR_DEV_NUM_MASK;

	return (pciP2PConfig >> PPCR_DEV_NUM_OFFS);
}