1 files changed, 48 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/sh-gpio.h b/arch/arm/mach-shmobile/sh-gpio.h
new file mode 100644
index 000000000000..e834763ac2a5
--- /dev/null
+++ b/arch/arm/mach-shmobile/sh-gpio.h
@@ -0,0 +1,48 @@
+/*
+ * Generic GPIO API and pinmux table support
+ *
+ * Copyright (c) 2008  Magnus Damm
+ *
+ * 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.
+ */
+#ifndef __ASM_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/io.h>
+
+/*
+ * FIXME !!
+ *
+ * current gpio frame work doesn't have
+ * the method to control only pull up/down/free.
+ * this function should be replaced by correct gpio function
+ */
+static inline void __init gpio_direction_none(void __iomem * addr)
+{
+        __raw_writeb(0x00, addr);
+}
+
+static inline void __init gpio_request_pullup(void __iomem * addr)
+{
+        u8 data = __raw_readb(addr);
+
+        data &= 0x0F;
+        data |= 0xC0;
+        __raw_writeb(data, addr);
+}
+
+static inline void __init gpio_request_pulldown(void __iomem * addr)
+{
+        u8 data = __raw_readb(addr);
+
+        data &= 0x0F;
+        data |= 0xA0;
+
+        __raw_writeb(data, addr);
+}
+
+#endif /* __ASM_ARCH_GPIO_H */