コード例 #1
0
ファイル: sys.c プロジェクト: nordic-krch/zephyr
unsigned int sys_irq_save_disable(void)
{
	unsigned int state = mfcpsr() & XIL_EXCEPTION_ALL;

	if (XIL_EXCEPTION_ALL != state) {
		Xil_ExceptionDisableMask(XIL_EXCEPTION_ALL);
	}
	return state;
}
コード例 #2
0
//--------------------------------------------------------------------
// PowerPC Timer Initialization functions.
//	For PowerPC, DEC and opb_timer can be used for Profiling. This
//	is selected by the user in standalone BSP
//
//--------------------------------------------------------------------
int powerpc405_init(void)
{
	Xil_ExceptionInit();
	Xil_ExceptionDisableMask( XIL_EXCEPTION_NON_CRITICAL ) ;

	// Initialize the Timer.
	// 1. If PowerPC DEC Timer has to be used, initialize DEC timer.
	// 2. Else use opb_timer. It can be directly connected or thru intc to PowerPC
#ifdef PPC_PIT_INTERRUPT
	ppc_dec_init();
#else
#ifdef TIMER_CONNECT_INTC
	Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_NON_CRITICAL_INT,
				     (Xil_ExceptionHandler)XIntc_DeviceInterruptHandler,(void *)0);

	XIntc_RegisterHandler( INTC_BASEADDR, PROFILE_TIMER_INTR_ID,
			     (XInterruptHandler)profile_intr_handler,(void*)0);
#else
	Xil_ExceptionRegisterHandler( XIL_EXCEPTION_ID_NON_CRITICAL_INT,
			      (Xil_ExceptionHandler)profile_intr_handler,(void *)0);
	Xil_ExceptionRegisterHandler( XIL_EXCEPTION_ID_NON_CRITICAL_INT,
			      (Xil_ExceptionHandler)profile_intr_handler,(void *)0);
#endif
	// Initialize the timer with Timer Ticks
	opb_timer_init() ;
#endif

	// Enable Interrupts in the System, if Profile Timer is the only Interrupt
	// in the System.
#ifdef ENABLE_SYS_INTR
#ifdef PPC_PIT_INTERRUPT
	XTime_DECEnableInterrupt() ;
#elif TIMER_CONNECT_INTC
	XIntc_MasterEnable( INTC_BASEADDR );
	XIntc_SetIntrSvcOption( INTC_BASEADDR, XIN_SVC_ALL_ISRS_OPTION);
	XIntc_EnableIntr( INTC_BASEADDR, PROFILE_TIMER_INTR_MASK );
#endif
	Xil_ExceptionEnableMask( XEXC_NON_CRITICAL ) ;
#endif
	return 0;
}