59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
/*
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* Copyright (c) 2014, Mentor Graphics Corporation
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* All rights reserved.
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*
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* Copyright (c) 2016 Xilinx, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include "xscugic.h"
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#define INTC_DEVICE_ID XPAR_SCUGIC_0_DEVICE_ID
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static XScuGic xInterruptController;
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/* Interrupt Controller setup */
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static int app_gic_initialize(void)
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{
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u32 Status;
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XScuGic_Config *IntcConfig; /* The configuration parameters of the interrupt controller */
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Xil_ExceptionDisable();
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/*
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* Initialize the interrupt controller driver
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*/
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IntcConfig = XScuGic_LookupConfig(INTC_DEVICE_ID);
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if (NULL == IntcConfig) {
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return XST_FAILURE;
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}
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Status = XScuGic_CfgInitialize(&xInterruptController, IntcConfig,
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IntcConfig->CpuBaseAddress);
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if (Status != XST_SUCCESS) {
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return XST_FAILURE;
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}
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/*
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* Register the interrupt handler to the hardware interrupt handling
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* logic in the ARM processor.
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*/
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Xil_ExceptionRegisterHandler(XIL_EXCEPTION_ID_IRQ_INT,
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(Xil_ExceptionHandler)XScuGic_InterruptHandler,
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&xInterruptController);
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Xil_ExceptionEnable();
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return 0;
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}
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/* Main hw machinery initialization entry point, called from main()*/
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/* return 0 on success */
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int init_system(void)
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{
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/* configure the global interrupt controller */
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app_gic_initialize();
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return 0;
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}
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