From 26202873bb51fafdaa51be3e8de7aab9beb49f70 Mon Sep 17 00:00:00 2001 From: Hans-Christian Noren Egtvedt Date: Sun, 26 Feb 2017 12:56:39 +0100 Subject: [PATCH] avr32: remove support for AVR32 architecture MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Håvard Skinnemoen Signed-off-by: Nicolas Ferre Acked-by: Andy Shevchenko Acked-by: Boris Brezillon --- CREDITS | 8 + MAINTAINERS | 15 - arch/avr32/Kconfig | 288 -- arch/avr32/Kconfig.debug | 9 - arch/avr32/Makefile | 84 - arch/avr32/boards/atngw100/Kconfig | 65 - arch/avr32/boards/atngw100/Kconfig_mrmt | 80 - arch/avr32/boards/atngw100/Makefile | 3 - arch/avr32/boards/atngw100/evklcd10x.c | 178 -- arch/avr32/boards/atngw100/flash.c | 98 - arch/avr32/boards/atngw100/mrmt.c | 382 --- arch/avr32/boards/atngw100/setup.c | 324 --- arch/avr32/boards/atstk1000/Kconfig | 109 - arch/avr32/boards/atstk1000/Makefile | 5 - arch/avr32/boards/atstk1000/atstk1000.h | 17 - arch/avr32/boards/atstk1000/atstk1002.c | 330 --- arch/avr32/boards/atstk1000/atstk1003.c | 162 -- arch/avr32/boards/atstk1000/atstk1004.c | 164 -- arch/avr32/boards/atstk1000/flash.c | 98 - arch/avr32/boards/atstk1000/setup.c | 127 - arch/avr32/boards/favr-32/Kconfig | 22 - 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delete mode 100644 arch/avr32/mm/init.c delete mode 100644 arch/avr32/mm/ioremap.c delete mode 100644 arch/avr32/mm/tlb.c delete mode 100644 arch/avr32/oprofile/Makefile delete mode 100644 arch/avr32/oprofile/backtrace.c delete mode 100644 arch/avr32/oprofile/op_model_avr32.c diff --git a/CREDITS b/CREDITS index c5626bf06264..5d09c26d69cd 100644 --- a/CREDITS +++ b/CREDITS @@ -1034,6 +1034,10 @@ S: 2037 Walnut #6 S: Boulder, Colorado 80302 S: USA +N: Hans-Christian Noren Egtvedt +E: egtvedt@samfundet.no +D: AVR32 architecture maintainer. + N: Heiko Eißfeldt E: heiko@colossus.escape.de heiko@unifix.de D: verify_area stuff, generic SCSI fixes @@ -3398,6 +3402,10 @@ S: Suite 101 S: Markham, Ontario L3R 2Z6 S: Canada +N: Haavard Skinnemoen +M: Haavard Skinnemoen +D: AVR32 architecture port to Linux and maintainer. + N: Rick Sladkey E: jrs@world.std.com D: utility hacker: Emacs, NFS server, mount, kmem-ps, UPS debugger, strace, GDB diff --git a/MAINTAINERS b/MAINTAINERS index 38d3e4ed7208..91c5fdbe5674 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2327,21 +2327,6 @@ S: Maintained F: drivers/auxdisplay/ F: include/linux/cfag12864b.h -AVR32 ARCHITECTURE -M: Haavard Skinnemoen -M: Hans-Christian Egtvedt -W: http://www.atmel.com/products/AVR32/ -W: http://mirror.egtvedt.no/avr32linux.org/ -W: http://avrfreaks.net/ -S: Maintained -F: arch/avr32/ - -AVR32/AT32AP MACHINE SUPPORT -M: Haavard Skinnemoen -M: Hans-Christian Egtvedt -S: Maintained -F: arch/avr32/mach-at32ap/ - AX.25 NETWORK LAYER M: Ralf Baechle L: linux-hams@vger.kernel.org diff --git a/arch/avr32/Kconfig b/arch/avr32/Kconfig deleted file mode 100644 index 7e75d45e20cd..000000000000 --- a/arch/avr32/Kconfig +++ /dev/null @@ -1,288 +0,0 @@ -config AVR32 - def_bool y - # With EXPERT=n, we get lots of stuff automatically selected - # that we usually don't need on AVR32. - select EXPERT - select HAVE_CLK - select HAVE_EXIT_THREAD - select HAVE_OPROFILE - select HAVE_KPROBES - select VIRT_TO_BUS - select GENERIC_IRQ_PROBE - select GENERIC_ATOMIC64 - select HARDIRQS_SW_RESEND - select GENERIC_IRQ_SHOW - select ARCH_HAVE_CUSTOM_GPIO_H - select ARCH_WANT_IPC_PARSE_VERSION - select ARCH_HAVE_NMI_SAFE_CMPXCHG - select GENERIC_CLOCKEVENTS - select HAVE_MOD_ARCH_SPECIFIC - select MODULES_USE_ELF_RELA - select HAVE_NMI - help - AVR32 is a high-performance 32-bit RISC microprocessor core, - designed for cost-sensitive embedded applications, with particular - emphasis on low power consumption and high code density. - - There is an AVR32 Linux project with a web page at - http://avr32linux.org/. - -config STACKTRACE_SUPPORT - def_bool y - -config LOCKDEP_SUPPORT - def_bool y - -config TRACE_IRQFLAGS_SUPPORT - def_bool y - -config RWSEM_GENERIC_SPINLOCK - def_bool y - -config RWSEM_XCHGADD_ALGORITHM - def_bool n - -config ARCH_HAS_ILOG2_U32 - def_bool n - -config ARCH_HAS_ILOG2_U64 - def_bool n - -config GENERIC_HWEIGHT - def_bool y - -config GENERIC_CALIBRATE_DELAY - def_bool y - -config GENERIC_BUG - def_bool y - depends on BUG - -source "init/Kconfig" - -source "kernel/Kconfig.freezer" - -menu "System Type and features" - -config SUBARCH_AVR32B - bool -config MMU - bool -config PERFORMANCE_COUNTERS - bool - -config PLATFORM_AT32AP - bool - select SUBARCH_AVR32B - select MMU - select PERFORMANCE_COUNTERS - select GPIOLIB - select GENERIC_ALLOCATOR - select HAVE_FB_ATMEL - -# -# CPU types -# - -# AP7000 derivatives -config CPU_AT32AP700X - bool - select PLATFORM_AT32AP -config CPU_AT32AP7000 - bool - select CPU_AT32AP700X -config CPU_AT32AP7001 - bool - select CPU_AT32AP700X -config CPU_AT32AP7002 - bool - select CPU_AT32AP700X - -# AP700X boards -config BOARD_ATNGW100_COMMON - bool - select CPU_AT32AP7000 - -choice - prompt "AVR32 board type" - default BOARD_ATSTK1000 - -config BOARD_ATSTK1000 - bool "ATSTK1000 evaluation board" - -config BOARD_ATNGW100_MKI - bool "ATNGW100 Network Gateway" - select BOARD_ATNGW100_COMMON - -config BOARD_ATNGW100_MKII - bool "ATNGW100 mkII Network Gateway" - select BOARD_ATNGW100_COMMON - -config BOARD_HAMMERHEAD - bool "Hammerhead board" - select CPU_AT32AP7000 - select USB_ARCH_HAS_HCD - help - The Hammerhead platform is built around an AVR32 32-bit microcontroller from Atmel. - It offers versatile peripherals, such as ethernet, usb device, usb host etc. - - The board also incorporates a power supply and is a Power over Ethernet (PoE) Powered - Device (PD). - - Additionally, a Cyclone III FPGA from Altera is integrated on the board. The FPGA is - mapped into the 32-bit AVR memory bus. The FPGA offers two DDR2 SDRAM interfaces, which - will cover even the most exceptional need of memory bandwidth. Together with the onboard - video decoder the board is ready for video processing. - - For more information see: http://www.miromico.ch/index.php/hammerhead.html - -config BOARD_FAVR_32 - bool "Favr-32 LCD-board" - select CPU_AT32AP7000 - -config BOARD_MERISC - bool "Merisc board" - select CPU_AT32AP7000 - help - Merisc is the family name for a range of AVR32-based boards. - - The boards are designed to be used in a man-machine - interfacing environment, utilizing a touch-based graphical - user interface. They host a vast range of I/O peripherals as - well as a large SDRAM & Flash memory bank. - - For more information see: http://www.martinsson.se/merisc - -config BOARD_MIMC200 - bool "MIMC200 CPU board" - select CPU_AT32AP7000 -endchoice - -source "arch/avr32/boards/atstk1000/Kconfig" -source "arch/avr32/boards/atngw100/Kconfig" -source "arch/avr32/boards/hammerhead/Kconfig" -source "arch/avr32/boards/favr-32/Kconfig" -source "arch/avr32/boards/merisc/Kconfig" - -choice - prompt "Boot loader type" - default LOADER_U_BOOT - -config LOADER_U_BOOT - bool "U-Boot (or similar) bootloader" -endchoice - -source "arch/avr32/mach-at32ap/Kconfig" - -config LOAD_ADDRESS - hex - default 0x10000000 if LOADER_U_BOOT=y && CPU_AT32AP700X=y - -config ENTRY_ADDRESS - hex - default 0x90000000 if LOADER_U_BOOT=y && CPU_AT32AP700X=y - -config PHYS_OFFSET - hex - default 0x10000000 if CPU_AT32AP700X=y - -source "kernel/Kconfig.preempt" - -config QUICKLIST - def_bool y - -config ARCH_HAVE_MEMORY_PRESENT - def_bool n - -config NEED_NODE_MEMMAP_SIZE - def_bool n - -config ARCH_FLATMEM_ENABLE - def_bool y - -config ARCH_DISCONTIGMEM_ENABLE - def_bool n - -config ARCH_SPARSEMEM_ENABLE - def_bool n - -config NODES_SHIFT - int - default "2" - depends on NEED_MULTIPLE_NODES - -source "mm/Kconfig" - -config OWNERSHIP_TRACE - bool "Ownership trace support" - default y - help - Say Y to generate an Ownership Trace message on every context switch, - enabling Nexus-compliant debuggers to keep track of the PID of the - currently executing task. - -config NMI_DEBUGGING - bool "NMI Debugging" - default n - help - Say Y here and pass the nmi_debug command-line parameter to - the kernel to turn on NMI debugging. Depending on the value - of the nmi_debug option, various pieces of information will - be dumped to the console when a Non-Maskable Interrupt - happens. - -# FPU emulation goes here - -source "kernel/Kconfig.hz" - -config CMDLINE - string "Default kernel command line" - default "" - help - If you don't have a boot loader capable of passing a command line string - to the kernel, you may specify one here. As a minimum, you should specify - the memory size and the root device (e.g., mem=8M, root=/dev/nfs). - -endmenu - -menu "Power management options" - -source "kernel/power/Kconfig" - -config ARCH_SUSPEND_POSSIBLE - def_bool y - -menu "CPU Frequency scaling" -source "drivers/cpufreq/Kconfig" -endmenu - -endmenu - -menu "Bus options" - -config PCI - bool - -source "drivers/pci/Kconfig" - -source "drivers/pcmcia/Kconfig" - -endmenu - -menu "Executable file formats" -source "fs/Kconfig.binfmt" -endmenu - -source "net/Kconfig" - -source "drivers/Kconfig" - -source "fs/Kconfig" - -source "arch/avr32/Kconfig.debug" - -source "security/Kconfig" - -source "crypto/Kconfig" - -source "lib/Kconfig" diff --git a/arch/avr32/Kconfig.debug b/arch/avr32/Kconfig.debug deleted file mode 100644 index 2283933a9a93..000000000000 --- a/arch/avr32/Kconfig.debug +++ /dev/null @@ -1,9 +0,0 @@ -menu "Kernel hacking" - -config TRACE_IRQFLAGS_SUPPORT - bool - default y - -source "lib/Kconfig.debug" - -endmenu 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 diff --git a/arch/avr32/boards/atngw100/Kconfig b/arch/avr32/boards/atngw100/Kconfig deleted file mode 100644 index 4e55617ade2d..000000000000 --- a/arch/avr32/boards/atngw100/Kconfig +++ /dev/null @@ -1,65 +0,0 @@ -# NGW100 customization - -if BOARD_ATNGW100_COMMON - -config BOARD_ATNGW100_MKII_LCD - bool "Enable ATNGW100 mkII LCD interface" - depends on BOARD_ATNGW100_MKII - help - This enables the LCD controller (LCDC) in the AT32AP7000. Since the - LCDC is multiplexed with MACB1 (LAN) Ethernet port, only one can be - enabled at a time. - - This choice enables the LCDC and disables the MACB1 interface marked - LAN on the PCB. - -choice - prompt "Select an NGW100 add-on board to support" - default BOARD_ATNGW100_ADDON_NONE - -config BOARD_ATNGW100_ADDON_NONE - bool "None" - -config BOARD_ATNGW100_EVKLCD10X - bool "EVKLCD10X addon board" - depends on BOARD_ATNGW100_MKI || BOARD_ATNGW100_MKII_LCD - help - This enables support for the EVKLCD100 (QVGA) or EVKLCD101 (VGA) - addon board for the NGW100 and NGW100 mkII. By enabling this the LCD - controller and AC97 controller is added as platform devices. - -config BOARD_ATNGW100_MRMT - bool "Mediama RMT1/2 add-on board" - help - This enables support for the Mediama RMT1 or RMT2 board. - RMT provides LCD support, AC97 codec and other - optional peripherals to the Atmel NGW100. - - This choice disables the detect pin and the write-protect pin for the - MCI platform device, since it conflicts with the LCD platform device. - The MCI pins can be reenabled by editing the "add device function" but - this may break the setup for other displays that use these pins. - -endchoice - -choice - prompt "LCD panel resolution on EVKLCD10X" - depends on BOARD_ATNGW100_EVKLCD10X - default BOARD_ATNGW100_EVKLCD10X_VGA - -config BOARD_ATNGW100_EVKLCD10X_QVGA - bool "QVGA (320x240)" - -config BOARD_ATNGW100_EVKLCD10X_VGA - bool "VGA (640x480)" - -config BOARD_ATNGW100_EVKLCD10X_POW_QVGA - bool "Powertip QVGA (320x240)" - -endchoice - -if BOARD_ATNGW100_MRMT -source "arch/avr32/boards/atngw100/Kconfig_mrmt" -endif - -endif # BOARD_ATNGW100_COMMON diff --git a/arch/avr32/boards/atngw100/Kconfig_mrmt b/arch/avr32/boards/atngw100/Kconfig_mrmt deleted file mode 100644 index 9a199a207f3c..000000000000 --- a/arch/avr32/boards/atngw100/Kconfig_mrmt +++ /dev/null @@ -1,80 +0,0 @@ -# RMT for NGW100 customization - -choice - prompt "RMT Version" - help - Select the RMTx board version. - -config BOARD_MRMT_REV1 - bool "RMT1" -config BOARD_MRMT_REV2 - bool "RMT2" - -endchoice - -config BOARD_MRMT_AC97 - bool "Enable AC97 CODEC" - help - Enable the UCB1400 AC97 CODEC driver. - -choice - prompt "Touchscreen Driver" - default BOARD_MRMT_ADS7846_TS - -config BOARD_MRMT_UCB1400_TS - bool "Use UCB1400 Touchscreen" - -config BOARD_MRMT_ADS7846_TS - bool "Use ADS7846 Touchscreen" - -endchoice - -choice - prompt "RMTx LCD Selection" - default BOARD_MRMT_LCD_DISABLE - -config BOARD_MRMT_LCD_DISABLE - bool "LCD Disabled" - -config BOARD_MRMT_LCD_LQ043T3DX0X - bool "Sharp LQ043T3DX0x or compatible" - help - If using RMT2, be sure to load the resistor pack selectors accordingly - -if BOARD_MRMT_REV2 -config BOARD_MRMT_LCD_KWH043GM08 - bool "Formike KWH043GM08 or compatible" - help - Be sure to load the RMT2 resistor pack selectors accordingly -endif - -endchoice - -if !BOARD_MRMT_LCD_DISABLE -config BOARD_MRMT_BL_PWM - bool "Use PWM control for LCD Backlight" - help - Use PWM driver for controlling LCD Backlight. - Otherwise, LCD Backlight is always on. -endif - -config BOARD_MRMT_RTC_I2C - bool "Use External RTC on I2C Bus" - help - RMT1 has an optional RTC device on the I2C bus. - It is a SII S35390A. Be sure to select the - matching RTC driver. - -choice - prompt "Wireless Module on ttyS2" - default BOARD_MRMT_WIRELESS_ZB - -config BOARD_MRMT_WIRELESS_ZB - bool "Use ZigBee/802.15.4 Module" - -config BOARD_MRMT_WIRELESS_BT - bool "Use Bluetooth (HCI) Module" - -config BOARD_MRMT_WIRELESS_NONE - bool "Not Installed" -endchoice diff --git a/arch/avr32/boards/atngw100/Makefile b/arch/avr32/boards/atngw100/Makefile deleted file mode 100644 index f4ebe42a8254..000000000000 --- a/arch/avr32/boards/atngw100/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -obj-y += setup.o flash.o -obj-$(CONFIG_BOARD_ATNGW100_EVKLCD10X) += evklcd10x.o -obj-$(CONFIG_BOARD_ATNGW100_MRMT) += mrmt.o diff --git a/arch/avr32/boards/atngw100/evklcd10x.c b/arch/avr32/boards/atngw100/evklcd10x.c deleted file mode 100644 index 64919b0da7aa..000000000000 --- a/arch/avr32/boards/atngw100/evklcd10x.c +++ /dev/null @@ -1,178 +0,0 @@ -/* - * Board-specific setup code for the ATEVKLCD10X addon board to the ATNGW100 - * Network Gateway - * - * Copyright (C) 2008 Atmel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - */ - -#include -#include -#include -#include -#include - -#include