1 files changed, 42 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2400/gpio.c b/arch/arm/mach-s3c2400/gpio.c
new file mode 100644
index 000000000000..758e160410e9
--- /dev/null
+++ b/arch/arm/mach-s3c2400/gpio.c
@@ -0,0 +1,42 @@
+/* linux/arch/arm/mach-s3c2400/gpio.c
+ *
+ * Copyright (c) 2006 Lucas Correia Villa Real <lucasvr@gobolinux.org>
+ *
+ * S3C2400 GPIO support
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <asm/arch/regs-gpio.h>
+
+int s3c2400_gpio_getirq(unsigned int pin)
+{
+        if (pin < S3C2410_GPE0 || pin > S3C2400_GPE7_EINT7)
+                return -1;  /* not valid interrupts */
+
+        return (pin - S3C2410_GPE0) + IRQ_EINT0;
+}
+
+EXPORT_SYMBOL(s3c2400_gpio_getirq);