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87 lines
2.4 KiB
C
87 lines
2.4 KiB
C
/*
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* Copyright (C) 2004 Florian Schirmer (jolt@tuxbox.org)
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* Copyright (C) 2008 Michael Buesch <mb@bu3sch.de>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/errno.h>
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#include <linux/init.h>
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#include <linux/interrupt.h>
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#include <linux/irq.h>
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#include <linux/module.h>
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#include <linux/smp.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <linux/ssb/ssb.h>
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#include <asm/cpu.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/irq_cpu.h>
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extern struct ssb_bus ssb;
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void plat_irq_dispatch(void)
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{
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u32 cause;
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cause = read_c0_cause() & read_c0_status() & CAUSEF_IP;
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clear_c0_status(cause);
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if (cause & CAUSEF_IP7)
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do_IRQ(7);
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if (cause & CAUSEF_IP2)
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do_IRQ(2);
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if (cause & CAUSEF_IP3)
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do_IRQ(3);
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if (cause & CAUSEF_IP4)
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do_IRQ(4);
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if (cause & CAUSEF_IP5)
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do_IRQ(5);
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if (cause & CAUSEF_IP6)
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do_IRQ(6);
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}
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void __init arch_init_irq(void)
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{
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mips_cpu_irq_init();
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}
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int pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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int res;
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res = ssb_pcibios_map_irq(dev, slot, pin);
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if (res < 0) {
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printk(KERN_ALERT "PCI: Failed to map IRQ of device %s\n",
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dev->dev.bus_id);
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return 0;
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}
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/* IRQ-0 and IRQ-1 are software interrupts. */
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WARN_ON((res == 0) || (res == 1));
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return res;
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}
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