linux/arch/arm/mach-ep93xx/Kconfig
Arnd Bergmann 12c3dca25d ARM: ep93xx: remove MaverickCrunch support
The MaverickCrunch support for ep93xx never made it into glibc and
was removed from gcc in its 4.8 release in 2012. It is now one of
the last parts of arch/arm/ that fails to build with the clang
integrated assembler, which is unlikely to ever want to support it.

The two alternatives are to force the use of binutils/gas when
building the crunch support, or to remove it entirely.

According to Hartley Sweeten:

 "Martin Guy did a lot of work trying to get the maverick crunch working
  but I was never able to successfully use it for anything. It "kind"
  of works but depending on the EP93xx silicon revision there are still
  a number of hardware bugs that either give imprecise or garbage results.

  I have no problem with removing the kernel support for the maverick
  crunch."

Unless someone else comes up with a good reason to keep it around,
remove it now. This touches mostly the ep93xx platform, but removes
a bit of code from ARM common ptrace and signal frame handling as well.

If there are remaining users of MaverickCrunch, they can use LTS
kernels for at least another five years before kernel support ends.

Link: https://lore.kernel.org/linux-arm-kernel/20210802141245.1146772-1-arnd@kernel.org/
Link: https://lore.kernel.org/linux-arm-kernel/20210226164345.3889993-1-arnd@kernel.org/
Link: https://github.com/ClangBuiltLinux/linux/issues/1272
Link: https://gcc.gnu.org/legacy-ml/gcc/2008-03/msg01063.html
Cc: "Martin Guy" <martinwguy@martinwguy@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2021-08-04 13:30:04 +02:00

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# SPDX-License-Identifier: GPL-2.0-only
if ARCH_EP93XX
menu "Cirrus EP93xx Implementation Options"
config EP93XX_SOC_COMMON
bool
default y
select SOC_BUS
select LEDS_GPIO_REGISTER
comment "EP93xx Platforms"
config MACH_ADSSPHERE
bool "Support ADS Sphere"
help
Say 'Y' here if you want your kernel to support the ADS
Sphere board.
config MACH_BK3
bool "Support Liebherr BK3.1"
select MACH_TS72XX
help
Say 'Y' here if you want your kernel to support the
Liebherr controller BK3.1.
config MACH_EDB93XX
bool
config MACH_EDB9301
bool "Support Cirrus Logic EDB9301"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9301 Evaluation Board.
config MACH_EDB9302
bool "Support Cirrus Logic EDB9302"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9302 Evaluation Board.
config MACH_EDB9302A
bool "Support Cirrus Logic EDB9302A"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9302A Evaluation Board.
config MACH_EDB9307
bool "Support Cirrus Logic EDB9307"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9307 Evaluation Board.
config MACH_EDB9307A
bool "Support Cirrus Logic EDB9307A"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9307A Evaluation Board.
config MACH_EDB9312
bool "Support Cirrus Logic EDB9312"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9312 Evaluation Board.
config MACH_EDB9315
bool "Support Cirrus Logic EDB9315"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9315 Evaluation Board.
config MACH_EDB9315A
bool "Support Cirrus Logic EDB9315A"
select MACH_EDB93XX
help
Say 'Y' here if you want your kernel to support the Cirrus
Logic EDB9315A Evaluation Board.
config MACH_GESBC9312
bool "Support Glomation GESBC-9312-sx"
help
Say 'Y' here if you want your kernel to support the Glomation
GESBC-9312-sx board.
config MACH_MICRO9
bool
config MACH_MICRO9H
bool "Support Contec Micro9-High"
select MACH_MICRO9
help
Say 'Y' here if you want your kernel to support the
Contec Micro9-High board.
config MACH_MICRO9M
bool "Support Contec Micro9-Mid"
select MACH_MICRO9
help
Say 'Y' here if you want your kernel to support the
Contec Micro9-Mid board.
config MACH_MICRO9L
bool "Support Contec Micro9-Lite"
select MACH_MICRO9
help
Say 'Y' here if you want your kernel to support the
Contec Micro9-Lite board.
config MACH_MICRO9S
bool "Support Contec Micro9-Slim"
select MACH_MICRO9
help
Say 'Y' here if you want your kernel to support the
Contec Micro9-Slim board.
config MACH_SIM_ONE
bool "Support Simplemachines Sim.One board"
help
Say 'Y' here if you want your kernel to support the
Simplemachines Sim.One board.
config MACH_SNAPPER_CL15
bool "Support Bluewater Systems Snapper CL15 Module"
help
Say 'Y' here if you want your kernel to support the Bluewater
Systems Snapper CL15 Module.
config MACH_TS72XX
bool "Support Technologic Systems TS-72xx SBC"
help
Say 'Y' here if you want your kernel to support the
Technologic Systems TS-72xx board.
config MACH_VISION_EP9307
bool "Support Vision Engraving Systems EP9307 SoM"
help
Say 'Y' here if you want your kernel to support the
Vision Engraving Systems EP9307 SoM.
endmenu
endif