avr32: work-in-progress

committed so as to ease cooperation and to let it be improved
over time.

So far it supports:
- halt/resume
- registers inspection
- memory inspection/modification

I'm still getting up to speed with OpenOCD internals and AVR32 so code is a little
bit messy and I'd appreciate any feedback.

src/target/avr32_ap7k.h

@@ -0,0 +1,49 @@
+/***************************************************************************
+ *   Copyright (C) 2010 by Oleksandr Tymoshenko <gonzo@bluezbox.com>       *
+ *                                                                         *
+ *   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 AVR32_AP7K
+#define AVR32_AP7K
+
+#include <helper/types.h>
+
+struct target;
+
+#define AP7k_COMMON_MAGIC	0x4150374b
+struct avr32_ap7k_common
+{
+	int common_magic;
+	struct avr32_jtag jtag;
+	struct reg_cache *core_cache;
+	uint32_t core_regs[AVR32NUMCOREREGS];
+};
+
+static inline struct avr32_ap7k_common *
+target_to_ap7k(struct target *target)
+{
+	return (struct avr32_ap7k_common*)target->arch_info;
+}
+
+struct avr32_core_reg
+{
+	uint32_t num;
+	struct target *target;
+	struct avr32_ap7k_common *avr32_common;
+};
+
+#endif	/*AVR32_AP7K*/