AVR32: Make some AT32AP700x peripherals optional

Add a chip-features file providing definitions of the form

AT32AP700x_CHIP_HAS_<peripheral>

to indicate the availability of the given peripheral on the currently
selected chip.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
diff --git a/include/asm-avr32/arch-at32ap700x/chip-features.h b/include/asm-avr32/arch-at32ap700x/chip-features.h
new file mode 100644
index 0000000..29b1fd6
--- /dev/null
+++ b/include/asm-avr32/arch-at32ap700x/chip-features.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2007 Atmel Corporation
+ *
+ * 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 __ASM_AVR32_ARCH_CHIP_FEATURES_H__
+#define __ASM_AVR32_ARCH_CHIP_FEATURES_H__
+
+/* Currently, all the AP700x chips have these */
+#define AT32AP700x_CHIP_HAS_USART
+#define AT32AP700x_CHIP_HAS_MMCI
+
+/* Only AP7000 has ethernet interface */
+#ifdef CONFIG_AT32AP7000
+#define AT32AP700x_CHIP_HAS_MACB
+#endif
+
+#endif /* __ASM_AVR32_ARCH_CHIP_FEATURES_H__ */