OpenCloudOS-Kernel/arch/arm/mach-spear/Kconfig

97 lines
2.0 KiB
Plaintext
Raw Normal View History

# SPDX-License-Identifier: GPL-2.0-only
#
# SPEAr Platform configuration file
#
menuconfig PLAT_SPEAR
ARM: use "depends on" for SoC configs instead of "if" after prompt Many ARM sub-architectures use prompts followed by "if" conditional, but it is wrong. Please notice the difference between config ARCH_FOO bool "Foo SoCs" if ARCH_MULTI_V7 and config ARCH_FOO bool "Foo SoCs" depends on ARCH_MULTI_V7 These two are *not* equivalent! In the former statement, it is not ARCH_FOO, but its prompt that depends on ARCH_MULTI_V7. So, it is completely valid that ARCH_FOO is selected by another, but ARCH_MULTI_V7 is still disabled. As it is not unmet dependency, Kconfig never warns. This is probably not what you want. The former should be used only when you need to do so, and you really understand what you are doing. (In most cases, it should be wrong!) For enabling/disabling sub-architectures, the latter is always correct. As a good side effect, this commit fixes some entries over 80 columns (mach-imx, mach-integrator, mach-mbevu). [Arnd: I note that there is not really a bug here, according to the discussion that followed, but I can see value in being consistent and in making the lines shorter] Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Patrice Chotard <patrice.chotard@st.com> Acked-by: Liviu Dudau <Liviu.Dudau@arm.com> Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Jun Nie <jun.nie@linaro.org> Acked-by: Matthias Brugger <matthias.bgg@gmail.com> Acked-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Krzysztof Halasa <khc@piap.pl> Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-11-16 11:06:10 +08:00
bool "ST SPEAr Family"
ARM: rework endianess selection 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>
2022-04-04 17:52:31 +08:00
depends on ARCH_MULTI_V7 || (ARCH_MULTI_V5 && CPU_LITTLE_ENDIAN)
select ARM_AMBA
select CLKSRC_MMIO
select GPIOLIB
if PLAT_SPEAR
config ARCH_SPEAR13XX
bool "ST SPEAr13xx"
depends on ARCH_MULTI_V7
select ARM_GIC
select GPIO_SPEAR_SPICS
select HAVE_ARM_SCU if SMP
select HAVE_ARM_TWD if SMP
select PINCTRL
select MFD_SYSCON
help
Supports for ARM's SPEAR13XX family
if ARCH_SPEAR13XX
config MACH_SPEAR1310
bool "SPEAr1310 Machine support with Device Tree"
select PINCTRL_SPEAR1310
select PHY_ST_SPEAR1310_MIPHY
help
Supports ST SPEAr1310 machine configured via the device-tree
config MACH_SPEAR1340
bool "SPEAr1340 Machine support with Device Tree"
select PINCTRL_SPEAR1340
select PHY_ST_SPEAR1340_MIPHY
help
Supports ST SPEAr1340 machine configured via the device-tree
endif #ARCH_SPEAR13XX
config ARCH_SPEAR3XX
bool "ST SPEAr3xx"
depends on ARCH_MULTI_V5
depends on !ARCH_SPEAR13XX
select ARM_VIC
select PINCTRL
help
Supports for ARM's SPEAR3XX family
if ARCH_SPEAR3XX
config MACH_SPEAR300
bool "SPEAr300 Machine support with Device Tree"
select PINCTRL_SPEAR300
help
Supports ST SPEAr300 machine configured via the device-tree
config MACH_SPEAR310
bool "SPEAr310 Machine support with Device Tree"
select PINCTRL_SPEAR310
help
Supports ST SPEAr310 machine configured via the device-tree
config MACH_SPEAR320
bool "SPEAr320 Machine support with Device Tree"
select PINCTRL_SPEAR320
help
Supports ST SPEAr320 machine configured via the device-tree
endif
config ARCH_SPEAR6XX
bool "ST SPEAr6XX"
depends on ARCH_MULTI_V5
depends on !ARCH_SPEAR13XX
select ARM_VIC
help
Supports for ARM's SPEAR6XX family
config MACH_SPEAR600
def_bool y
depends on ARCH_SPEAR6XX
help
Supports ST SPEAr600 boards configured via the device-tree
config ARCH_SPEAR_AUTO
bool
depends on !ARCH_SPEAR13XX && !ARCH_SPEAR6XX
select ARCH_SPEAR3XX
endif