Prepatory patch to allow AVR32/AT91 support from Ulf Samuelsson

- Introduce AVR32 target architecture "avr32"
- Introduce AVR32 target variants (AP7000/AP7010/AP7020)
- Introduce Download location for patches/packages for Atmel chips (BR2_ATMEL_MIRROR)
- Introduce Download location for Community AT91 patches/packages (BR2_AT91_PATCH_MIRROR)

Config.in

@@ -18,6 +18,8 @@ config BR2_arm
 	bool "arm"
 config BR2_armeb
 	bool "armeb"
+config BR2_avr32
+	bool "avr32"
 config BR2_cris
 	bool "cris"
 config BR2_i386
@@ -109,6 +111,18 @@ config BR2_ARM_EABI
 	bool "EABI"
 endchoice
 
+choice
+	prompt "Target Architecture Variant"
+	depends BR2_avr32
+config BR2_ap7000
+	bool "AP7000"
+config BR2_ap7010
+	bool "AP7010"
+config BR2_ap7020
+	bool "AP7020"
+endchoice
+
+
 choice
 	prompt "Target Architecture Variant"
 	depends BR2_sh
@@ -156,6 +170,7 @@ config BR2_ARCH
 	default "alpha"		if BR2_alpha
 	default "arm"		if BR2_arm
 	default "armeb"		if BR2_armeb
+	default "avr32"		if BR2_avr32
 	default "cris"		if BR2_cris
 	default "i386"		if BR2_x86_i386
 	default "i486"		if BR2_x86_i486
@@ -181,7 +196,7 @@ config BR2_ENDIAN
 	default "LITTLE" if BR2_arm || BR2_cris || BR2_i386 || BR2_mipsel || \
 	                    BR2_sh3 || BR2_sh4 || BR2_x86_64 || BR2_nios2 || \
 			    BR2_sh64
-	default "BIG"    if BR2_alpha || BR2_armeb || BR2_m68k || BR2_mips || \
+	default "BIG"    if BR2_alpha || BR2_armeb || BR2_avr32 || BR2_m68k || BR2_mips || \
 	                    BR2_powerpc || BR2_sh2a_nofpueb || BR2_sh2eb || \
 	                    BR2_sh3eb || BR2_sh4eb || BR2_sparc
 
@@ -241,6 +256,32 @@ config BR2_SOURCEFORGE_MIRROR
 	  The list of mirrors is available here:
 	  http://prdownloads.sourceforge.net/index-sf.html?download
 
+config BR2_ATMEL_MIRROR
+	depends BR2_avr32 || BR2_arm
+	string "Atmel AVR32/AT91 download site"
+	default "ftp://at91dist:distrib@81.80.104.162/AT91_Third_Party_Design_Flow/Linux_Host/"
+	help
+	  Unofficial site for AVR32/AT91 Buildroot patches, or your local mirror.
+	  Atmel does not currently support buildroot, but this site makes
+	  available neccessary patches and prepatched packages useful
+	  to extend a buildroot for AVR32 or AT91 ARM based boards.
+	  Issues with contents of this server needs to be highlighted
+	  on the buildroot mailing list and
+	  should not be addressed directly to Atmel
+	  Atmel provides support for their AVR32 chips on 
+	  http://avr32linux.org/ or http://www.avrfreaks.net/
+	  Atmel provides support for AT91 chips on www.at91.com.
+	  Commercial AT91 Linux support is through www.timesys.com
+	  Community  AT91 Linux support is through http://maxim.org.za/AT91_26.html
+
+config BR2_AT91_PATCH_MIRROR
+	depends BR2_arm
+	string "Atmel AT91 Linux Patch download site"
+	default "http://maxim.org.za/AT91RM9200/2.6/"
+	help
+	  Patches for the AT91 generated by the Linux community
+	  usually ends up here, courtesy of Andrew Victor
+	  
 config BR2_STAGING_DIR
 	string "Toolchain and header file location?"
 	default "$(BUILD_DIR)/staging_dir"