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/*
* 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;
}
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