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author | Wu Zhangjin <wuzhangjin@gmail.com> | 2009-07-02 23:26:45 +0800 |
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committer | Ralf Baechle <ralf@linux-mips.org> | 2009-09-17 20:07:47 +0200 |
commit | 85749d24bcf90440b10394312e5b1c96d1a62cdb (patch) | |
tree | e244d0d79d24e066871ae207a851d38973d57345 /arch/mips/loongson/common/bonito-irq.c | |
parent | 8e4971175acc910eb4258df82a6bd8f2c4e4e5b5 (diff) | |
download | op-kernel-dev-85749d24bcf90440b10394312e5b1c96d1a62cdb.zip op-kernel-dev-85749d24bcf90440b10394312e5b1c96d1a62cdb.tar.gz |
MIPS: Loongson: Split common loongson source code out
To share common loongson source code between all of the loongson-based
machines. there is a need to split it out of the fuloong-2e/ directory.
at the same time, other according tuning is needed. the machine-specific
parts are defined as macros in relative header file, pci.h, mem.h,
machine.h.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/loongson/common/bonito-irq.c')
-rw-r--r-- | arch/mips/loongson/common/bonito-irq.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/arch/mips/loongson/common/bonito-irq.c b/arch/mips/loongson/common/bonito-irq.c new file mode 100644 index 0000000..3e31e7a --- /dev/null +++ b/arch/mips/loongson/common/bonito-irq.c @@ -0,0 +1,51 @@ +/* + * Copyright 2001 MontaVista Software Inc. + * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net + * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org) + * + * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology + * Author: Fuxin Zhang, zhangfx@lemote.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ +#include <linux/interrupt.h> + +#include <loongson.h> + +static inline void bonito_irq_enable(unsigned int irq) +{ + BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE)); + mmiowb(); +} + +static inline void bonito_irq_disable(unsigned int irq) +{ + BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE)); + mmiowb(); +} + +static struct irq_chip bonito_irq_type = { + .name = "bonito_irq", + .ack = bonito_irq_disable, + .mask = bonito_irq_disable, + .mask_ack = bonito_irq_disable, + .unmask = bonito_irq_enable, +}; + +static struct irqaction dma_timeout_irqaction = { + .handler = no_action, + .name = "dma_timeout", +}; + +void bonito_irq_init(void) +{ + u32 i; + + for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++) + set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq); + + setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction); +} |