75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
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* Copyright 2001 MontaVista Software Inc.
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* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
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* Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org)
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*
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* Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology
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* Author: Fuxin Zhang, zhangfx@lemote.com
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/types.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <asm/mips-boards/bonito64.h>
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static inline void bonito_irq_enable(unsigned int irq)
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{
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BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE));
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mmiowb();
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}
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static inline void bonito_irq_disable(unsigned int irq)
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{
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BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE));
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mmiowb();
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}
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static struct irq_chip bonito_irq_type = {
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.name = "bonito_irq",
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.ack = bonito_irq_disable,
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.mask = bonito_irq_disable,
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.mask_ack = bonito_irq_disable,
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.unmask = bonito_irq_enable,
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};
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static struct irqaction dma_timeout_irqaction = {
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.handler = no_action,
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.name = "dma_timeout",
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};
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void bonito_irq_init(void)
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{
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u32 i;
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for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++) {
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set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
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}
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setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction);
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}
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