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5d6f52671e
Choosing big-endian vs little-endian kernels in Kconfig has not worked
correctly since the introduction of CONFIG_ARCH_MULTIPLATFORM a long
time ago.
The problems is that CONFIG_BIG_ENDIAN depends on
ARCH_SUPPORTS_BIG_ENDIAN, which can set by any one platform
in the config, but would actually have to be supported by all
of them.
This was mostly ok for ARMv6/ARMv7 builds, since these are BE8 and
tend to just work aside from problems in nonportable device drivers.
For ARMv4/v5 machines, CONFIG_BIG_ENDIAN and CONFIG_ARCH_MULTIPLATFORM
were never set together, so this was disabled on all those machines
except for IXP4xx.
As IXP4xx can now become part of ARCH_MULTIPLATFORM, it seems better to
formalize this logic: all ARMv4/v5 platforms get an explicit dependency
on being either big-endian (ixp4xx) or little-endian (the rest). We may
want to fix ixp4xx in the future to support both, but it does not work
in LE mode at the moment.
For the ARMv6/v7 platforms, there are two ways this could be handled
a) allow both modes only for platforms selecting
'ARCH_SUPPORTS_BIG_ENDIAN' today, but only LE mode for the
others, given that these were added intentionally at some
point.
b) allow both modes everwhere, given that it was already possible
to build that way by e.g. selecting ARCH_VIRT, and that the
list is not an accurate reflection of which platforms may or
may not work.
Out of these, I picked b) because it seemed slighly more logical
to me.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
30 lines
734 B
Plaintext
30 lines
734 B
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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menuconfig ARCH_INTEL_SOCFPGA
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bool "Altera SOCFPGA family"
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depends on ARCH_MULTI_V7
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select ARCH_HAS_RESET_CONTROLLER
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select ARM_AMBA
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select ARM_GIC
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select CACHE_L2X0
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select DW_APB_TIMER_OF
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select GPIO_PL061 if GPIOLIB
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select HAVE_ARM_SCU
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select HAVE_ARM_TWD if SMP
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select MFD_SYSCON
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select ARM_ERRATA_754322
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select ARM_ERRATA_764369 if SMP
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select ARM_ERRATA_775420
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select PL310_ERRATA_588369
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select PL310_ERRATA_727915
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select PL310_ERRATA_753970 if PL310
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select PL310_ERRATA_769419
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select RESET_CONTROLLER
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if ARCH_INTEL_SOCFPGA
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config SOCFPGA_SUSPEND
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bool "Suspend to RAM on SOCFPGA"
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help
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Select this if you want to enable Suspend-to-RAM on SOCFPGA
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platforms.
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endif
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