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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.c86
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;
+}