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>
46 lines
1.0 KiB
Plaintext
46 lines
1.0 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
|
|
menuconfig ARCH_QCOM
|
|
bool "Qualcomm Support"
|
|
depends on ARCH_MULTI_V7
|
|
select ARM_GIC
|
|
select ARM_AMBA
|
|
select PINCTRL
|
|
select QCOM_SCM if SMP
|
|
help
|
|
Support for Qualcomm's devicetree based systems.
|
|
|
|
if ARCH_QCOM
|
|
|
|
config ARCH_IPQ40XX
|
|
bool "Enable support for IPQ40XX"
|
|
select CLKSRC_QCOM
|
|
select HAVE_ARM_ARCH_TIMER
|
|
|
|
config ARCH_MSM8X60
|
|
bool "Enable support for MSM8X60"
|
|
select CLKSRC_QCOM
|
|
|
|
config ARCH_MSM8916
|
|
bool "Enable support for MSM8916"
|
|
select HAVE_ARM_ARCH_TIMER
|
|
help
|
|
Enable support for the Qualcomm Snapdragon 410 (MSM8916/APQ8016).
|
|
|
|
Note that ARM64 is the main supported architecture for MSM8916.
|
|
The ARM32 option is intended for a few devices with signed firmware
|
|
that does not allow booting ARM64 kernels.
|
|
|
|
config ARCH_MSM8960
|
|
bool "Enable support for MSM8960"
|
|
select CLKSRC_QCOM
|
|
|
|
config ARCH_MSM8974
|
|
bool "Enable support for MSM8974"
|
|
select HAVE_ARM_ARCH_TIMER
|
|
|
|
config ARCH_MDM9615
|
|
bool "Enable support for MDM9615"
|
|
select CLKSRC_QCOM
|
|
|
|
endif
|