| Songmao Tian | 42d226c | 2007-06-06 14:52:38 +0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2001 MontaVista Software Inc. |
| 3 | * Author: Jun Sun, jsun@mvista.com or jsun@junsun.net |
| 4 | * Copyright (C) 2000, 2001 Ralf Baechle (ralf@gnu.org) |
| 5 | * |
| 6 | * Copyright (C) 2007 Lemote Inc. & Insititute of Computing Technology |
| 7 | * Author: Fuxin Zhang, zhangfx@lemote.com |
| 8 | * |
| 9 | * This program is free software; you can redistribute it and/or modify it |
| 10 | * under the terms of the GNU General Public License as published by the |
| 11 | * Free Software Foundation; either version 2 of the License, or (at your |
| 12 | * option) any later version. |
| 13 | * |
| 14 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 15 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 16 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 17 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 20 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 21 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 24 | * |
| 25 | * You should have received a copy of the GNU General Public License along |
| 26 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 27 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 28 | * |
| 29 | */ |
| 30 | #include <linux/errno.h> |
| 31 | #include <linux/init.h> |
| 32 | #include <linux/io.h> |
| 33 | #include <linux/types.h> |
| 34 | #include <linux/interrupt.h> |
| 35 | #include <linux/irq.h> |
| 36 | |
| 37 | #include <asm/mips-boards/bonito64.h> |
| 38 | |
| 39 | |
| 40 | static inline void bonito_irq_enable(unsigned int irq) |
| 41 | { |
| 42 | BONITO_INTENSET = (1 << (irq - BONITO_IRQ_BASE)); |
| 43 | mmiowb(); |
| 44 | } |
| 45 | |
| 46 | static inline void bonito_irq_disable(unsigned int irq) |
| 47 | { |
| 48 | BONITO_INTENCLR = (1 << (irq - BONITO_IRQ_BASE)); |
| 49 | mmiowb(); |
| 50 | } |
| 51 | |
| 52 | static struct irq_chip bonito_irq_type = { |
| 53 | .name = "bonito_irq", |
| 54 | .ack = bonito_irq_disable, |
| 55 | .mask = bonito_irq_disable, |
| 56 | .mask_ack = bonito_irq_disable, |
| 57 | .unmask = bonito_irq_enable, |
| 58 | }; |
| 59 | |
| 60 | static struct irqaction dma_timeout_irqaction = { |
| 61 | .handler = no_action, |
| 62 | .name = "dma_timeout", |
| 63 | }; |
| 64 | |
| 65 | void bonito_irq_init(void) |
| 66 | { |
| 67 | u32 i; |
| 68 | |
| 69 | for (i = BONITO_IRQ_BASE; i < BONITO_IRQ_BASE + 32; i++) { |
| 70 | set_irq_chip_and_handler(i, &bonito_irq_type, handle_level_irq); |
| 71 | } |
| 72 | |
| 73 | setup_irq(BONITO_IRQ_BASE + 10, &dma_timeout_irqaction); |
| 74 | } |