[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>
19 years ago
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#
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# Copyright (C) 2004-2006 Atmel Corporation
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#
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# This file is subject to the terms and conditions of the GNU General Public
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# License. See the file "COPYING" in the main directory of this archive
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# for more details.
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#
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MKIMAGE := $(srctree)/scripts/mkuboot.sh
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extra-y := vmlinux.bin vmlinux.gz
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OBJCOPYFLAGS_vmlinux.bin := -O binary
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$(obj)/vmlinux.bin: vmlinux FORCE
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$(call if_changed,objcopy)
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$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
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$(call if_changed,gzip)
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quiet_cmd_uimage = UIMAGE $@
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cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A avr32 -O linux -T kernel \
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-C gzip -a $(CONFIG_LOAD_ADDRESS) -e $(CONFIG_ENTRY_ADDRESS) \
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-n 'Linux-$(KERNELRELEASE)' -d $< $@
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targets += uImage uImage.srec
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$(obj)/uImage: $(obj)/vmlinux.gz
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$(call if_changed,uimage)
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@echo ' Image $@ is ready'
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OBJCOPYFLAGS_uImage.srec := -I binary -O srec
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$(obj)/uImage.srec: $(obj)/uImage
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$(call if_changed,objcopy)
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OBJCOPYFLAGS_vmlinux.elf := --change-section-lma .text-0x80000000 \
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--change-section-lma __ex_table-0x80000000 \
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--change-section-lma .rodata-0x80000000 \
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--change-section-lma .data-0x80000000 \
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--change-section-lma .init-0x80000000 \
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--change-section-lma .bss-0x80000000 \
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--change-section-lma __param-0x80000000 \
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--change-section-lma __ksymtab-0x80000000 \
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--change-section-lma __ksymtab_gpl-0x80000000 \
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--change-section-lma __kcrctab-0x80000000 \
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--change-section-lma __kcrctab_gpl-0x80000000 \
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--change-section-lma __ksymtab_strings-0x80000000 \
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--set-start 0xa0000000
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$(obj)/vmlinux.elf: vmlinux FORCE
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$(call if_changed,objcopy)
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quiet_cmd_sfdwarf = SFDWARF $@
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cmd_sfdwarf = sfdwarf $< TO $@ GNUAVR IW $(SFDWARF_FLAGS) > $(obj)/sfdwarf.log
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$(obj)/vmlinux.cso: $(obj)/vmlinux.elf FORCE
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$(call if_changed,sfdwarf)
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install: $(BOOTIMAGE)
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sh $(srctree)/install-kernel.sh $<
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# Generated files to be removed upon make clean
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clean-files := vmlinux.elf vmlinux.bin vmlinux.gz uImage uImage.srec
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