diff options
Diffstat (limited to 'target/linux/brcm47xx/files-2.6.23/arch/mips/bcm947xx/irq.c')
| -rw-r--r-- | target/linux/brcm47xx/files-2.6.23/arch/mips/bcm947xx/irq.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/target/linux/brcm47xx/files-2.6.23/arch/mips/bcm947xx/irq.c b/target/linux/brcm47xx/files-2.6.23/arch/mips/bcm947xx/irq.c new file mode 100644 index 0000000000..d707894353 --- /dev/null +++ b/target/linux/brcm47xx/files-2.6.23/arch/mips/bcm947xx/irq.c @@ -0,0 +1,86 @@ +/* + * Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org) + * Copyright (C) 2008 Michael Buesch <mb@bu3sch.de> + * + * 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/interrupt.h> +#include <linux/irq.h> +#include <linux/module.h> +#include <linux/smp.h> +#include <linux/types.h> +#include <linux/pci.h> +#include <linux/ssb/ssb.h> + +#include <asm/cpu.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/irq_cpu.h> + + +extern struct ssb_bus ssb; + + +void plat_irq_dispatch(void) +{ + u32 cause; + + cause = read_c0_cause() & read_c0_status() & CAUSEF_IP; + + clear_c0_status(cause); + + if (cause & CAUSEF_IP7) + do_IRQ(7); + if (cause & CAUSEF_IP2) + do_IRQ(2); + if (cause & CAUSEF_IP3) + do_IRQ(3); + if (cause & CAUSEF_IP4) + do_IRQ(4); + if (cause & CAUSEF_IP5) + do_IRQ(5); + if (cause & CAUSEF_IP6) + do_IRQ(6); +} + +void __init arch_init_irq(void) +{ + mips_cpu_irq_init(); +} + +int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + int res; + + res = ssb_pcibios_map_irq(dev, slot, pin); + if (res < 0) { + printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n", + dev->dev.bus_id); + return 0; + } + /* IRQ-0 and IRQ-1 are software interrupts. */ + WARN_ON((res == 0) || (res == 1)); + + return res; +} |