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  * The above copyright notice and this permission notice shall be included in
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  /*****************************************************************************/
  /**
  *
  * @file xscugic_selftest.c
  *
  * Contains diagnostic self-test functions for the XScuGic driver.
  * <pre>
  * MODIFICATION HISTORY:
  *
  * Ver   Who  Date     Changes
  * ----- ---- -------- -----------------------------------------------
  * 1.00a drg  01/19/10 First release
  *
  * </pre>
  *
  ******************************************************************************/
  
  /***************************** Include Files *********************************/
  
  #include "xil_types.h"
  #include "xil_assert.h"
  #include "xscugic.h"
  
  /************************** Constant Definitions *****************************/
  
  #define	XSCUGIC_PCELL_ID	0xB105F00D
  
  /**************************** Type Definitions *******************************/
  
  
  /***************** Macros (Inline Functions) Definitions *********************/
  
  
  /************************** Function Prototypes ******************************/
  
  /************************** Variable Definitions *****************************/
  
  /*****************************************************************************/
  /**
  *
  * Run a self-test on the driver/device. This test reads the ID registers and
  * compares them.
  *
  * @param	InstancePtr is a pointer to the XScuGic instance.
  *
  * @return
  *
  * 		- XST_SUCCESS if self-test is successful.
  * 		- XST_FAILURE if the self-test is not successful.
  *
  * @note		None.
  *
  ******************************************************************************/
  int  XScuGic_SelfTest(XScuGic *InstancePtr)
  {
  	u32 RegValue1 =0;
  	int Index;
  
  	/*
  	 * Assert the arguments
  	 */
  	Xil_AssertNonvoid(InstancePtr != NULL);
  	Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
  
  	/*
  	 * Read the ID registers.
  	 */
  	for(Index=0; Index<=3; Index++) {
  		RegValue1 |= XScuGic_DistReadReg(InstancePtr,
  			(XSCUGIC_PCELLID_OFFSET + (Index * 4))) << (Index * 8);
  	}
  
  	if(XSCUGIC_PCELL_ID != RegValue1){
  		return XST_FAILURE;
  	}
  
  	return XST_SUCCESS;
  }
  
  