1 files changed, 46 insertions, 0 deletions

diff --git a/arch/sh/boards/mach-se/7780/irq.c b/arch/sh/boards/mach-se/7780/irq.c
new file mode 100644
index 000000000000..66ad292c9fc3
--- /dev/null
+++ b/arch/sh/boards/mach-se/7780/irq.c
@@ -0,0 +1,46 @@
+/*
+ * linux/arch/sh/boards/se/7780/irq.c
+ *
+ * Copyright (C) 2006,2007  Nobuhiro Iwamatsu
+ *
+ * Hitachi UL SolutionEngine 7780 Support.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+#include <mach-se/mach/se7780.h>
+
+/*
+ * Initialize IRQ setting
+ */
+void __init init_se7780_IRQ(void)
+{
+        /* enable all interrupt at FPGA */
+        ctrl_outw(0, FPGA_INTMSK1);
+        /* mask SM501 interrupt */
+        ctrl_outw((ctrl_inw(FPGA_INTMSK1) | 0x0002), FPGA_INTMSK1);
+        /* enable all interrupt at FPGA */
+        ctrl_outw(0, FPGA_INTMSK2);
+
+        /* set FPGA INTSEL register */
+        /* FPGA + 0x06 */
+        ctrl_outw( ((IRQPIN_SM501 << IRQPOS_SM501) |
+                (IRQPIN_SMC91CX << IRQPOS_SMC91CX)), FPGA_INTSEL1);
+
+        /* FPGA + 0x08 */
+        ctrl_outw(((IRQPIN_EXTINT4 << IRQPOS_EXTINT4) |
+                (IRQPIN_EXTINT3 << IRQPOS_EXTINT3) |
+                (IRQPIN_EXTINT2 << IRQPOS_EXTINT2) |
+                (IRQPIN_EXTINT1 << IRQPOS_EXTINT1)), FPGA_INTSEL2);
+
+        /* FPGA + 0x0A */
+        ctrl_outw((IRQPIN_PCCPW << IRQPOS_PCCPW), FPGA_INTSEL3);
+
+        plat_irq_setup_pins(IRQ_MODE_IRQ); /* install handlers for IRQ0-7 */
+}