From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Haavard Skinnemoen <hskinnemoen@gmail.com>,
Nicolas Ferre <nicolas.ferre@atmel.com>,
Boris Brezillon <boris.brezillon@free-electrons.com>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [RFC] remove support for AVR32 architecture
Date: Wed, 1 Mar 2017 23:43:40 +0200 [thread overview]
Message-ID: <CAHp75VeeLUPgwvecQA9NOgbtqb+C2x5QP7WitX88h=Gfs5wA0A@mail.gmail.com> (raw)
In-Reply-To: <20170301204426.GA694@samfundet.no>
On Wed, Mar 1, 2017 at 10:44 PM, Hans-Christian Noren Egtvedt
<egtvedt@samfundet.no> wrote:
> Hello all,
>
> 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.
For the record Buildroot distribution removed support back to 2015 IIRC.
commit 80be8753d5bacc865ceeee26c55bf4b0c2940e10
Author: Yann E. MORIN <yann.morin.1998@free.fr>
Date: Sat Feb 14 10:23:15 2015 +0100
arch/avr32: decommission for real
OTOH U-Boot still has it, but I didn't check if it even compiles.
> 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.
>
> I have prepared three patches in my for-linus branch in git tree
> https://git.kernel.org/cgit/linux/kernel/git/egtvedt/linux-avr32.git
>
> Shortlog below, patches not inlined as they are quite large IMHO.
>
> I will send a formal pull request to Linus unless anybody objects loudly.
>
> I have also prepare patches for removing AVR32 specific kernel drivers, I
> will send those to the relevant subsystem maintainers.
>
Eager to give my
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
since it's a real burden and ugliness in drivers/dma/dw/core.c due to AVR32.
> Hans-Christian Noren Egtvedt (3):
> avr32: remove support for AVR32 architecture
> docs: remove all references to AVR32 architecture
> scripts: remove AVR32 support from checkstack.pl
>
> CREDITS | 8 +
> Documentation/admin-guide/README.rst | 2 +-
> Documentation/admin-guide/kernel-parameters.rst | 1 -
> Documentation/admin-guide/kernel-parameters.txt | 3 +-
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> .../features/vm/pte_special/arch-support.txt | 1 -
> Documentation/media/v4l-drivers/soc-camera.rst | 2 +-
> MAINTAINERS | 15 -
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> arch/avr32/Kconfig.debug | 9 -
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> 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 -
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> 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 -
> arch/avr32/boards/favr-32/Makefile | 1 -
> arch/avr32/boards/favr-32/flash.c | 98 -
> arch/avr32/boards/favr-32/setup.c | 366 ---
> arch/avr32/boards/hammerhead/Kconfig | 43 -
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> arch/avr32/boards/hammerhead/flash.c | 381 ----
> arch/avr32/boards/hammerhead/flash.h | 6 -
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> arch/avr32/boards/merisc/flash.c | 139 --
> arch/avr32/boards/merisc/merisc.h | 18 -
> arch/avr32/boards/merisc/merisc_sysfs.c | 64 -
> arch/avr32/boards/merisc/setup.c | 305 ---
> arch/avr32/boards/mimc200/Makefile | 1 -
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> arch/avr32/boards/mimc200/setup.c | 236 --
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> arch/avr32/boot/u-boot/Makefile | 3 -
> arch/avr32/boot/u-boot/empty.S | 1 -
> arch/avr32/boot/u-boot/head.S | 83 -
> arch/avr32/configs/atngw100_defconfig | 142 --
> arch/avr32/configs/atngw100_evklcd100_defconfig | 158 --
> arch/avr32/configs/atngw100_evklcd101_defconfig | 157 --
> arch/avr32/configs/atngw100_mrmt_defconfig | 136 --
> arch/avr32/configs/atngw100mkii_defconfig | 144 --
> .../avr32/configs/atngw100mkii_evklcd100_defconfig | 161 --
> .../avr32/configs/atngw100mkii_evklcd101_defconfig | 160 --
> arch/avr32/configs/atstk1002_defconfig | 157 --
> arch/avr32/configs/atstk1003_defconfig | 137 --
> arch/avr32/configs/atstk1004_defconfig | 135 --
> arch/avr32/configs/atstk1006_defconfig | 160 --
> arch/avr32/configs/favr-32_defconfig | 143 --
> arch/avr32/configs/hammerhead_defconfig | 145 --
> arch/avr32/configs/merisc_defconfig | 115 -
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> arch/avr32/include/asm/Kbuild | 24 -
> arch/avr32/include/asm/addrspace.h | 43 -
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> arch/avr32/include/asm/ftrace.h | 1 -
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> arch/avr32/include/asm/io.h | 329 ---
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> arch/avr32/mach-at32ap/at32ap700x.c | 2368 --------------------
> arch/avr32/mach-at32ap/clock.c | 334 ---
> arch/avr32/mach-at32ap/clock.h | 35 -
> arch/avr32/mach-at32ap/extint.c | 271 ---
> arch/avr32/mach-at32ap/hmatrix.c | 88 -
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> arch/avr32/mach-at32ap/hsmc.h | 127 --
> arch/avr32/mach-at32ap/include/mach/at32ap700x.h | 245 --
> arch/avr32/mach-at32ap/include/mach/board.h | 115 -
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> 272 files changed, 11 insertions(+), 27083 deletions(-)
> delete mode 100644 arch/avr32/Kconfig
> delete mode 100644 arch/avr32/Kconfig.debug
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> delete mode 100644 arch/avr32/configs/hammerhead_defconfig
> delete mode 100644 arch/avr32/configs/merisc_defconfig
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> delete mode 100644 arch/avr32/include/asm/cache.h
> delete mode 100644 arch/avr32/include/asm/cacheflush.h
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> delete mode 100644 arch/avr32/include/asm/irq.h
> delete mode 100644 arch/avr32/include/asm/irqflags.h
> delete mode 100644 arch/avr32/include/asm/kdebug.h
> delete mode 100644 arch/avr32/include/asm/kmap_types.h
> delete mode 100644 arch/avr32/include/asm/kprobes.h
> delete mode 100644 arch/avr32/include/asm/linkage.h
> delete mode 100644 arch/avr32/include/asm/mmu.h
> delete mode 100644 arch/avr32/include/asm/mmu_context.h
> delete mode 100644 arch/avr32/include/asm/module.h
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> delete mode 100644 arch/avr32/include/asm/pci.h
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> delete mode 100644 arch/avr32/include/asm/serial.h
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> delete mode 100644 arch/avr32/include/uapi/asm/msgbuf.h
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> delete mode 100644 arch/avr32/kernel/time.c
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> delete mode 100644 arch/avr32/lib/Makefile
> delete mode 100644 arch/avr32/lib/__avr32_asr64.S
> delete mode 100644 arch/avr32/lib/__avr32_lsl64.S
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> delete mode 100644 arch/avr32/lib/csum_partial.S
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> delete mode 100644 arch/avr32/lib/delay.c
> delete mode 100644 arch/avr32/lib/findbit.S
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> delete mode 100644 arch/avr32/lib/io-writesl.S
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> delete mode 100644 arch/avr32/lib/strncpy_from_user.S
> delete mode 100644 arch/avr32/lib/strnlen_user.S
> delete mode 100644 arch/avr32/mach-at32ap/Kconfig
> delete mode 100644 arch/avr32/mach-at32ap/Makefile
> delete mode 100644 arch/avr32/mach-at32ap/at32ap700x.c
> delete mode 100644 arch/avr32/mach-at32ap/clock.c
> delete mode 100644 arch/avr32/mach-at32ap/clock.h
> delete mode 100644 arch/avr32/mach-at32ap/extint.c
> delete mode 100644 arch/avr32/mach-at32ap/hmatrix.c
> delete mode 100644 arch/avr32/mach-at32ap/hsmc.c
> delete mode 100644 arch/avr32/mach-at32ap/hsmc.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/at32ap700x.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/board.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/chip.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/cpu.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/gpio.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/hmatrix.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/init.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/io.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/irq.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/pm.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/portmux.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/smc.h
> delete mode 100644 arch/avr32/mach-at32ap/include/mach/sram.h
> delete mode 100644 arch/avr32/mach-at32ap/intc.c
> delete mode 100644 arch/avr32/mach-at32ap/intc.h
> delete mode 100644 arch/avr32/mach-at32ap/pdc.c
> delete mode 100644 arch/avr32/mach-at32ap/pio.c
> delete mode 100644 arch/avr32/mach-at32ap/pio.h
> delete mode 100644 arch/avr32/mach-at32ap/pm-at32ap700x.S
> delete mode 100644 arch/avr32/mach-at32ap/pm.c
> delete mode 100644 arch/avr32/mach-at32ap/pm.h
> delete mode 100644 arch/avr32/mach-at32ap/sdramc.h
> delete mode 100644 arch/avr32/mm/Makefile
> delete mode 100644 arch/avr32/mm/cache.c
> delete mode 100644 arch/avr32/mm/clear_page.S
> delete mode 100644 arch/avr32/mm/copy_page.S
> delete mode 100644 arch/avr32/mm/dma-coherent.c
> delete mode 100644 arch/avr32/mm/fault.c
> 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
>
> --
> Best regards,
> Hans-Christian Noren Egtvedt
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2017-03-01 21:45 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-01 20:44 [RFC] remove support for AVR32 architecture Hans-Christian Noren Egtvedt
2017-03-01 21:43 ` Andy Shevchenko [this message]
2017-03-01 21:55 ` Boris Brezillon
2017-03-02 15:55 ` Nicolas Ferre
2017-03-06 5:58 ` Håvard Skinnemoen
2017-03-06 19:07 ` Hans-Christian Noren Egtvedt
2017-03-27 13:26 ` Boris Brezillon
2017-03-27 13:35 ` Hans-Christian Noren Egtvedt
2017-05-02 5:52 ` Hans-Christian Noren Egtvedt
2017-05-02 7:46 ` Andy Shevchenko
2017-05-02 8:12 ` Hans-Christian Noren Egtvedt
2017-05-02 8:33 ` Andy Shevchenko
2017-05-02 11:27 ` Andy Shevchenko
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