1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-ns9xxx/gpiolib-ns9360.c b/arch/arm/mach-ns9xxx/gpiolib-ns9360.c
new file mode 100644
index 000000000000..310dde70fea6
--- /dev/null
+++ b/arch/arm/mach-ns9xxx/gpiolib-ns9360.c
@@ -0,0 +1,59 @@
+/*
+ * arch/arm/mach-ns9xxx/gpiolib-ns9360.c
+ *
+ * Copyright (C) 2006-2008 by Digi International Inc.
+ * All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#include <linux/bug.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <asm/gpio.h>
+
+static int ns9360_gpio_chip_get(struct gpio_chip *chip, unsigned offset)
+{
+	return gpio_get_value_ns9360(chip->base + offset);
+}
+
+static void ns9360_gpio_chip_set(struct gpio_chip *chip,
+		unsigned offset, int value)
+{
+	gpio_set_value_ns9360_unlocked(chip->base + offset, value);
+}
+
+static int ns9360_gpio_chip_dir_input(struct gpio_chip *chip, unsigned offset)
+{
+	return gpio_direction_irqinput_ns9360_unlocked(chip->base + offset);
+}
+
+static int ns9360_gpio_chip_dir_output(struct gpio_chip *chip,
+		unsigned offset, int value)
+{
+	return gpio_direction_output_ns9360_unlocked(chip->base + offset,
+			value);
+}
+
+static struct gpio_chip ns9360_gpio_chip = {
+	.label = "ns9360-system-gpio",
+	.direction_input = ns9360_gpio_chip_dir_input,
+	.direction_output = ns9360_gpio_chip_dir_output,
+	.get = ns9360_gpio_chip_get,
+	.set = ns9360_gpio_chip_set,
+	.base = 0,
+	.ngpio = 72,
+};
+
+int __init ns9360_gpio_init(void)
+{
+	if (!processor_is_ns9360())
+		return -EINVAL;
+
+	return gpiochip_add(&ns9360_gpio_chip);
+}
+