| Aurelien Jarno | 1c0c13e | 2007-09-25 15:40:12 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2004 Florian Schirmer <jolt@tuxbox.org> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License as published by the |
| 6 | * Free Software Foundation; either version 2 of the License, or (at your |
| 7 | * option) any later version. |
| 8 | * |
| 9 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED |
| 10 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN |
| 12 | * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 13 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 14 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| 15 | * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
| 16 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 17 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 18 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License along |
| 21 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 22 | * 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 | */ |
| 24 | |
| 25 | #include <linux/types.h> |
| 26 | #include <linux/interrupt.h> |
| 27 | #include <linux/irq.h> |
| 28 | #include <asm/irq_cpu.h> |
| Hauke Mehrtens | a3e72cd | 2011-07-23 01:20:15 +0200 | [diff] [blame] | 29 | #include <bcm47xx.h> |
| Aurelien Jarno | 1c0c13e | 2007-09-25 15:40:12 +0200 | [diff] [blame] | 30 | |
| 31 | void plat_irq_dispatch(void) |
| 32 | { |
| 33 | u32 cause; |
| 34 | |
| 35 | cause = read_c0_cause() & read_c0_status() & CAUSEF_IP; |
| 36 | |
| 37 | clear_c0_status(cause); |
| 38 | |
| 39 | if (cause & CAUSEF_IP7) |
| 40 | do_IRQ(7); |
| 41 | if (cause & CAUSEF_IP2) |
| 42 | do_IRQ(2); |
| 43 | if (cause & CAUSEF_IP3) |
| 44 | do_IRQ(3); |
| 45 | if (cause & CAUSEF_IP4) |
| 46 | do_IRQ(4); |
| 47 | if (cause & CAUSEF_IP5) |
| 48 | do_IRQ(5); |
| 49 | if (cause & CAUSEF_IP6) |
| 50 | do_IRQ(6); |
| 51 | } |
| 52 | |
| 53 | void __init arch_init_irq(void) |
| 54 | { |
| Hauke Mehrtens | a3e72cd | 2011-07-23 01:20:15 +0200 | [diff] [blame] | 55 | #ifdef CONFIG_BCM47XX_BCMA |
| 56 | if (bcm47xx_bus_type == BCM47XX_BUS_TYPE_BCMA) { |
| 57 | bcma_write32(bcm47xx_bus.bcma.bus.drv_mips.core, |
| 58 | BCMA_MIPS_MIPS74K_INTMASK(5), 1 << 31); |
| 59 | /* |
| 60 | * the kernel reads the timer irq from some register and thinks |
| 61 | * it's #5, but we offset it by 2 and route to #7 |
| 62 | */ |
| 63 | cp0_compare_irq = 7; |
| 64 | } |
| 65 | #endif |
| Aurelien Jarno | 1c0c13e | 2007-09-25 15:40:12 +0200 | [diff] [blame] | 66 | mips_cpu_irq_init(); |
| 67 | } |