e2fee5723b
The built-in Loongson 2E/2F northbridge in is bonito64-compatible but not identical with it. To avoid influencing the original bonito64 support and make the loongson support more maintainable, it's better to separate the Bonito64 code from the Loongson code. This also prepares the kernel for the coming Loongson 2f machines family support. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: Linux-MIPS <linux-mips@linux-mips.org> Cc: yanh@lemote.com Cc: huhb@lemote.com Cc: Zhang Le <r0bertz@gentoo.org> Cc: zhangfx@lemote.com, Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
52 lines
1.3 KiB
C
52 lines
1.3 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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#include <linux/interrupt.h>
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#include <loongson.h>
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static inline void bonito_irq_enable(unsigned int irq)
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{
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LOONGSON_INTENSET = (1 << (irq - LOONGSON_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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LOONGSON_INTENCLR = (1 << (irq - LOONGSON_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 = LOONGSON_IRQ_BASE; i < LOONGSON_IRQ_BASE + 32; i++)
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set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq);
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setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction);
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}
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