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e15f6870a2
This shuffles some of the shared bits out of the 7786 code and in to a shared SH-X3 support file. Presently just for userimask, but also a good place for the IRQ balancing wrappers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
35 lines
780 B
C
35 lines
780 B
C
/*
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* Shared support for SH-X3 interrupt controllers.
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*
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* Copyright (C) 2009 - 2010 Paul Mundt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/irq.h>
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#include <linux/io.h>
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#include <linux/init.h>
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#define INTACK 0xfe4100b8
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#define INTACKCLR 0xfe4100bc
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#define INTC_USERIMASK 0xfe411000
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#ifdef CONFIG_INTC_BALANCING
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unsigned int irq_lookup(unsigned int irq)
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{
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return __raw_readl(INTACK) & 1 ? irq : NO_IRQ_IGNORE;
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}
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void irq_finish(unsigned int irq)
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{
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__raw_writel(irq2evt(irq), INTACKCLR);
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}
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#endif
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static int __init shx3_irq_setup(void)
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{
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return register_intc_userimask(INTC_USERIMASK);
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}
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arch_initcall(shx3_irq_setup);
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