[MIPS] Add gpio support to the BCM47XX platform

Add GPIO support to the BCM47XX platform.  It will be used by a GPIO
LED driver.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/include/asm-mips/mach-bcm47xx/gpio.h b/include/asm-mips/mach-bcm47xx/gpio.h
new file mode 100644
index 0000000..cfc8f4d
--- /dev/null
+++ b/include/asm-mips/mach-bcm47xx/gpio.h
@@ -0,0 +1,59 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2007 Aurelien Jarno <aurelien@aurel32.net>
+ */
+
+#ifndef __BCM47XX_GPIO_H
+#define __BCM47XX_GPIO_H
+
+#define BCM47XX_EXTIF_GPIO_LINES	5
+#define BCM47XX_CHIPCO_GPIO_LINES	16
+
+extern int bcm47xx_gpio_to_irq(unsigned gpio);
+extern int bcm47xx_gpio_get_value(unsigned gpio);
+extern void bcm47xx_gpio_set_value(unsigned gpio, int value);
+extern int bcm47xx_gpio_direction_input(unsigned gpio);
+extern int bcm47xx_gpio_direction_output(unsigned gpio, int value);
+
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+       return 0;
+}
+
+static inline void gpio_free(unsigned gpio)
+{
+}
+
+static inline int gpio_to_irq(unsigned gpio)
+{
+	return bcm47xx_gpio_to_irq(gpio);
+}
+
+static inline int gpio_get_value(unsigned gpio)
+{
+	return bcm47xx_gpio_get_value(gpio);
+}
+
+static inline void gpio_set_value(unsigned gpio, int value)
+{
+	bcm47xx_gpio_set_value(gpio, value);
+}
+
+static inline int gpio_direction_input(unsigned gpio)
+{
+	return bcm47xx_gpio_direction_input(gpio);
+}
+
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+	return bcm47xx_gpio_direction_output(gpio, value);
+}
+
+
+/* cansleep wrappers */
+#include <asm-generic/gpio.h>
+
+#endif /* __BCM47XX_GPIO_H */