26 lines
690 B
C
26 lines
690 B
C
/*
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* ARC FPGA Platform IRQ hookups
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*
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* Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/interrupt.h>
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#include <plat/irq.h>
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void __init plat_fpga_init_IRQ(void)
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{
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/*
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* SMP Hack because UART IRQ hardwired to cpu0 (boot-cpu) but if the
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* request_irq() comes from any other CPU, the low level IRQ unamsking
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* essential for getting Interrupts won't be enabled on cpu0, locking
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* up the UART state machine.
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*/
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#ifdef CONFIG_SMP
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arch_unmask_irq(UART0_IRQ);
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#endif
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}
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