avr32: remove support for AVR32 architecture

This patch drops support for AVR32 architecture from the Linux kernel.

The AVR32 architecture is not keeping up with the development of the
kernel, and since it shares so much of the drivers with Atmel ARM SoC,
it is starting to hinder these drivers to develop swiftly.

Also, all AVR32 AP7 SoC processors are end of lifed from Atmel (now
Microchip).

Finally, the GCC toolchain is stuck at version 4.2.x, and has not
received any patches since the last release from Atmel;
4.2.4-atmel.1.1.3.avr32linux.1. When building kernel v4.10, this
toolchain is no longer able to properly link the network stack.

Haavard and I have came to the conclusion that we feel keeping AVR32 on
life support offers more obstacles for Atmel ARMs, than it gives joy to
AVR32 users. I also suspect there are very few AVR32 users left today,
if anybody at all.

Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Håvard Skinnemoen <hskinnemoen@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>

1 files changed, 0 insertions, 84 deletions

diff --git a/arch/avr32/Makefile b/arch/avr32/Makefile
deleted file mode 100644
index dba48a5d5bb9..000000000000
--- a/arch/avr32/Makefile
+++ /dev/null
@@ -1,84 +0,0 @@
-#
-# 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.
-#
-# Copyright (C) 2004-2006 Atmel Corporation.
-
-# Default target when executing plain make
-.PHONY: all
-all: uImage vmlinux.elf
-
-KBUILD_DEFCONFIG	:= atstk1002_defconfig
-
-KBUILD_CFLAGS	+= -pipe -fno-builtin -mno-pic -D__linux__
-KBUILD_AFLAGS	+= -mrelax -mno-pic
-KBUILD_CFLAGS_MODULE += -mno-relax
-LDFLAGS_vmlinux	+= --relax
-
-cpuflags-$(CONFIG_PLATFORM_AT32AP)	+= -march=ap
-
-KBUILD_CFLAGS	+= $(cpuflags-y)
-KBUILD_AFLAGS	+= $(cpuflags-y)
-
-CHECKFLAGS	+= -D__avr32__ -D__BIG_ENDIAN
-
-machine-$(CONFIG_PLATFORM_AT32AP) := at32ap
-machdirs	:= $(patsubst %,arch/avr32/mach-%/, $(machine-y))
-
-KBUILD_CPPFLAGS	+= $(patsubst %,-I$(srctree)/%include,$(machdirs))
-
-head-$(CONFIG_LOADER_U_BOOT)		+= arch/avr32/boot/u-boot/head.o
-head-y					+= arch/avr32/kernel/head.o
-core-y					+= $(machdirs)
-core-$(CONFIG_BOARD_ATSTK1000)		+= arch/avr32/boards/atstk1000/
-core-$(CONFIG_BOARD_ATNGW100_COMMON)	+= arch/avr32/boards/atngw100/
-core-$(CONFIG_BOARD_HAMMERHEAD)		+= arch/avr32/boards/hammerhead/
-core-$(CONFIG_BOARD_FAVR_32)		+= arch/avr32/boards/favr-32/
-core-$(CONFIG_BOARD_MERISC)		+= arch/avr32/boards/merisc/
-core-$(CONFIG_BOARD_MIMC200)		+= arch/avr32/boards/mimc200/
-core-$(CONFIG_LOADER_U_BOOT)		+= arch/avr32/boot/u-boot/
-core-y					+= arch/avr32/kernel/
-core-y					+= arch/avr32/mm/
-drivers-$(CONFIG_OPROFILE)		+= arch/avr32/oprofile/
-libs-y					+= arch/avr32/lib/
-
-BOOT_TARGETS := vmlinux.elf vmlinux.bin uImage uImage.srec
-
-.PHONY: $(BOOT_TARGETS) install
-
-boot := arch/$(ARCH)/boot/images
-
-             KBUILD_IMAGE := $(boot)/uImage
-vmlinux.elf: KBUILD_IMAGE := $(boot)/vmlinux.elf
-vmlinux.cso: KBUILD_IMAGE := $(boot)/vmlinux.cso
-uImage.srec: KBUILD_IMAGE := $(boot)/uImage.srec
-uImage:      KBUILD_IMAGE := $(boot)/uImage
-
-quiet_cmd_listing = LST     $@
-      cmd_listing = avr32-linux-objdump $(OBJDUMPFLAGS) -lS $< > $@
-quiet_cmd_disasm  = DIS     $@
-      cmd_disasm  = avr32-linux-objdump $(OBJDUMPFLAGS) -d $< > $@
-
-vmlinux.elf vmlinux.bin uImage.srec uImage vmlinux.cso: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-
-install: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) $@
-
-vmlinux.s: vmlinux
-	$(call if_changed,disasm)
-
-vmlinux.lst: vmlinux
-	$(call if_changed,listing)
-
-CLEAN_FILES += vmlinux.s vmlinux.lst
-
-archclean:
-	$(Q)$(MAKE) $(clean)=$(boot)
-
-define archhelp
-  @echo '* vmlinux.elf		- ELF image with load address 0'
-  @echo '  vmlinux.cso		- PathFinder CSO image'
-  @echo '* uImage		- Create a bootable image for U-Boot'
-endef