diff options
Diffstat (limited to 'arch/mips/lemote/lm2e/bonito-irq.c')
| -rw-r--r-- | arch/mips/lemote/lm2e/bonito-irq.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/mips/lemote/lm2e/bonito-irq.c b/arch/mips/lemote/lm2e/bonito-irq.c new file mode 100644 index 000000000000..8fc3bce7075b --- /dev/null +++ b/arch/mips/lemote/lm2e/bonito-irq.c @@ -0,0 +1,74 @@ +/* + * 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. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN + * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF + * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 675 Mass Ave, Cambridge, MA 02139, USA. + * + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/irq.h> + +#include <asm/mips-boards/bonito64.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); +} |