armv7: Add ST-Ericsson u8500 arch

Based on ST-Ericsson internal git repo.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: John Rigby <john.rigby@linaro.org>
CC: Albert Aribaud <albert.aribaud@free.fr>
diff --git a/arch/arm/include/asm/arch-u8500/sys_proto.h b/arch/arm/include/asm/arch-u8500/sys_proto.h
new file mode 100644
index 0000000..bac5e79
--- /dev/null
+++ b/arch/arm/include/asm/arch-u8500/sys_proto.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) ST-Ericsson SA 2010
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+#ifndef _SYS_PROTO_H_
+#define _SYS_PROTO_H_
+
+void gpio_init(void);
+
+#endif  /* _SYS_PROTO_H_ */