[PATCH] avr32 architecture

This adds support for the Atmel AVR32 architecture as well as the AT32AP7000
CPU and the AT32STK1000 development board.

AVR32 is a new high-performance 32-bit RISC microprocessor core, designed for
cost-sensitive embedded applications, with particular emphasis on low power
consumption and high code density.  The AVR32 architecture is not binary
compatible with earlier 8-bit AVR architectures.

The AVR32 architecture, including the instruction set, is described by the
AVR32 Architecture Manual, available from

http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf

The Atmel AT32AP7000 is the first CPU implementing the AVR32 architecture.  It
features a 7-stage pipeline, 16KB instruction and data caches and a full
Memory Management Unit.  It also comes with a large set of integrated
peripherals, many of which are shared with the AT91 ARM-based controllers from
Atmel.

Full data sheet is available from

http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf

while the CPU core implementation including caches and MMU is documented by
the AVR32 AP Technical Reference, available from

http://www.atmel.com/dyn/resources/prod_documents/doc32001.pdf

Information about the AT32STK1000 development board can be found at

http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918

including a BSP CD image with an earlier version of this patch, development
tools (binaries and source/patches) and a root filesystem image suitable for
booting from SD card.

Alternatively, there's a preliminary "getting started" guide available at
http://avr32linux.org/twiki/bin/view/Main/GettingStarted which provides links
to the sources and patches you will need in order to set up a cross-compiling
environment for avr32-linux.

This patch, as well as the other patches included with the BSP and the
toolchain patches, is actively supported by Atmel Corporation.

[dmccr@us.ibm.com: Fix more pxx_page macro locations]
[bunk@stusta.de: fix `make defconfig']
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Dave McCracken <dmccr@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 62 insertions, 0 deletions

diff --git a/arch/avr32/boot/images/Makefile b/arch/avr32/boot/images/Makefile
new file mode 100644
index 00000000000..ccd74eeecec
--- /dev/null
+++ b/arch/avr32/boot/images/Makefile
@@ -0,0 +1,62 @@
+#
+# Copyright (C) 2004-2006 Atmel Corporation
+#
+# 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.
+#
+
+MKIMAGE		:= $(srctree)/scripts/mkuboot.sh
+
+extra-y		:= vmlinux.bin vmlinux.gz
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+quiet_cmd_uimage = UIMAGE $@
+      cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A avr32 -O linux -T kernel	\
+		-C gzip -a $(CONFIG_LOAD_ADDRESS) -e $(CONFIG_ENTRY_ADDRESS)	\
+		-n 'Linux-$(KERNELRELEASE)' -d $< $@
+
+targets += uImage uImage.srec
+$(obj)/uImage: $(obj)/vmlinux.gz
+	$(call if_changed,uimage)
+	@echo '  Image $@ is ready'
+
+OBJCOPYFLAGS_uImage.srec := -I binary -O srec
+$(obj)/uImage.srec: $(obj)/uImage
+	$(call if_changed,objcopy)
+
+OBJCOPYFLAGS_vmlinux.elf := --change-section-lma .text-0x80000000 \
+			    --change-section-lma __ex_table-0x80000000 \
+			    --change-section-lma .rodata-0x80000000 \
+			    --change-section-lma .data-0x80000000 \
+			    --change-section-lma .init-0x80000000 \
+			    --change-section-lma .bss-0x80000000 \
+			    --change-section-lma .initrd-0x80000000 \
+			    --change-section-lma __param-0x80000000 \
+			    --change-section-lma __ksymtab-0x80000000 \
+			    --change-section-lma __ksymtab_gpl-0x80000000 \
+			    --change-section-lma __kcrctab-0x80000000 \
+			    --change-section-lma __kcrctab_gpl-0x80000000 \
+			    --change-section-lma __ksymtab_strings-0x80000000 \
+			    --change-section-lma .got-0x80000000 \
+			    --set-start 0xa0000000
+$(obj)/vmlinux.elf: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+quiet_cmd_sfdwarf = SFDWARF $@
+      cmd_sfdwarf = sfdwarf $< TO $@ GNUAVR IW $(SFDWARF_FLAGS) > $(obj)/sfdwarf.log
+
+$(obj)/vmlinux.cso: $(obj)/vmlinux.elf FORCE
+	$(call if_changed,sfdwarf)
+
+install: $(BOOTIMAGE)
+	sh $(srctree)/install-kernel.sh $<
+
+# Generated files to be removed upon make clean
+clean-files	:= vmlinux* uImage uImage.srec