1 files changed, 76 insertions, 0 deletions

diff --git a/arch/mips/philips/pnx8550/common/mipsIRQ.S b/arch/mips/philips/pnx8550/common/mipsIRQ.S
new file mode 100644
index 000000000000..338bffda3fab
--- /dev/null
+++ b/arch/mips/philips/pnx8550/common/mipsIRQ.S
@@ -0,0 +1,76 @@
+/*
+ * Copyright (c) 2002 Philips, Inc. All rights.
+ * Copyright (c) 2002 Red Hat, Inc. All rights.
+ *
+ * This software may be freely redistributed under the terms of the
+ * GNU General Public License.
+ *
+ * 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.
+ *
+ * Based upon arch/mips/galileo-boards/ev64240/int-handler.S
+ *
+ */
+#include <asm/asm.h>
+#include <asm/mipsregs.h>
+#include <asm/addrspace.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+
+/*
+ * cp0_irqdispatch
+ *
+ *    Code to handle in-core interrupt exception.
+ */
+
+                .align  5
+                .set    reorder
+                .set    noat
+                NESTED(cp0_irqdispatch, PT_SIZE, sp)
+                SAVE_ALL
+                CLI
+                .set    at
+                mfc0    t0,CP0_CAUSE
+                mfc0    t2,CP0_STATUS
+
+                and     t0,t2
+
+                andi    t1,t0,STATUSF_IP2 /* int0 hardware line */
+                bnez    t1,ll_hw0_irq
+                nop
+
+                andi    t1,t0,STATUSF_IP7 /* int5 hardware line */
+                bnez    t1,ll_timer_irq
+                nop
+
+                /* wrong alarm or masked ... */
+
+                j       spurious_interrupt
+                nop
+                END(cp0_irqdispatch)
+
+                .align  5
+                .set    reorder
+ll_hw0_irq:
+                li      a0,2
+                move    a1,sp
+                jal     hw0_irqdispatch
+                nop
+                j       ret_from_irq
+                nop
+
+                .align  5
+                .set    reorder
+ll_timer_irq:
+                mfc0    t3,CP0_CONFIG,7
+                andi    t4,t3,0x01c0
+                beqz    t4,ll_timer_out
+                nop
+                li      a0,7
+                move    a1,sp
+                jal     timer_irqdispatch
+                nop
+
+ll_timer_out:   j       ret_from_irq
+                nop