Commit 26202873 authored by Hans-Christian Noren Egtvedt's avatar Hans-Christian Noren Egtvedt
Browse files

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: default avatarHans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: default avatarHåvard Skinnemoen <hskinnemoen@gmail.com>
Signed-off...
parent a351e9b9
......@@ -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 <hskinnemoen@gmail.com>
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
......
......@@ -2327,21 +2327,6 @@ S: Maintained
F: drivers/auxdisplay/
F: include/linux/cfag12864b.h
AVR32 ARCHITECTURE
M: Haavard Skinnemoen <hskinnemoen@gmail.com>
M: Hans-Christian Egtvedt <egtvedt@samfundet.no>
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 <hskinnemoen@gmail.com>
M: Hans-Christian Egtvedt <egtvedt@samfundet.no>
S: Maintained
F: arch/avr32/mach-at32ap/
AX.25 NETWORK LAYER
M: Ralf Baechle <ralf@linux-mips.org>
L: linux-hams@vger.kernel.org
......
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"
menu "Kernel hacking"
config TRACE_IRQFLAGS_SUPPORT
bool
default y
source "lib/Kconfig.debug"
endmenu
#
# 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
# 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
# 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
obj-y += setup.o flash.o
obj-$(CONFIG_BOARD_ATNGW100_EVKLCD10X) += evklcd10x.o
obj-$(CONFIG_BOARD_ATNGW100_MRMT) += mrmt.o
/*
* 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 <linux/init.h>
#include <linux/linkage.h>
#include <linux/gpio.h>
#include <linux/fb.h>
#include <linux/platform_device.h>
#include <video/atmel_lcdc.h>
#include <asm/setup.h>
#include <mach/at32ap700x.h>
#include <mach/portmux.h>
#include <mach/board.h>
#include <sound/atmel-ac97c.h>
static struct ac97c_platform_data __initdata ac97c0_data = {
.reset_pin = GPIO_PIN_PB(19),
};
#ifdef CONFIG_BOARD_ATNGW100_EVKLCD10X_VGA
static struct fb_videomode __initdata tcg057vglad_modes[] = {
{
.name = "640x480 @ 50",
.refresh = 50,
.xres = 640, .yres = 480,
.pixclock = KHZ2PICOS(25180),
.left_margin = 64, .right_margin = 96,
.upper_margin = 34, .lower_margin = 11,
.hsync_len = 64, .vsync_len = 15,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
};
static struct fb_monspecs __initdata atevklcd10x_default_monspecs = {
.manufacturer = "KYO",
.monitor = "TCG057VGLAD",
.modedb = tcg057vglad_modes,
.modedb_len = ARRAY_SIZE(tcg057vglad_modes),
.hfmin = 19948,
.hfmax = 31478,
.vfmin = 50,
.vfmax = 67,
.dclkmax = 28330000,
};
static struct atmel_lcdfb_pdata __initdata atevklcd10x_lcdc_data = {
.default_bpp = 16,