config ARCH_FOOTBRIDGE
bool "FootBridge"
+ depends on CPU_LITTLE_ENDIAN
select CPU_SA110
select FOOTBRIDGE
select NEED_MACH_MEMORY_H
config ARCH_IXP4XX
bool "IXP4xx-based"
- select ARCH_SUPPORTS_BIG_ENDIAN
+ depends on CPU_BIG_ENDIAN
select ARM_PATCH_PHYS_VIRT
select CPU_XSCALE
select GPIO_IXP4XX
config ARCH_PXA
bool "PXA2xx/PXA3xx-based"
+ depends on CPU_LITTLE_ENDIAN
select ARCH_MTD_XIP
select ARM_CPU_SUSPEND if PM
select AUTO_ZRELADDR
config ARCH_RPC
bool "RiscPC"
depends on !CC_IS_CLANG && GCC_VERSION < 90100 && GCC_VERSION >= 60000
+ depends on CPU_LITTLE_ENDIAN
select ARCH_ACORN
select ARCH_MAY_HAVE_PC_FDC
select ARCH_SPARSEMEM_ENABLE
config ARCH_SA1100
bool "SA1100-based"
+ depends on CPU_LITTLE_ENDIAN
select ARCH_MTD_XIP
select ARCH_SPARSEMEM_ENABLE
select CLKSRC_MMIO
config ARCH_OMAP1
bool "TI OMAP1"
+ depends on CPU_LITTLE_ENDIAN
select ARCH_OMAP
select CLKSRC_MMIO
select GENERIC_IRQ_CHIP
select ARM_GIC_V3_ITS if PCI
select ARM_PSCI
select HAVE_ARM_ARCH_TIMER
- select ARCH_SUPPORTS_BIG_ENDIAN
config ARCH_AIROHA
bool "Airoha SoC Support"
config MACH_ASM9260
bool "Alphascale ASM9260"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select CPU_ARM926T
select ASM9260_TIMER
help
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_ASPEED
bool "Aspeed BMC architectures"
- depends on ARCH_MULTI_V5 || ARCH_MULTI_V6 || ARCH_MULTI_V7
+ depends on (CPU_LITTLE_ENDIAN && ARCH_MULTI_V5) || ARCH_MULTI_V6 || ARCH_MULTI_V7
select SRAM
select WATCHDOG
select ASPEED_WATCHDOG
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_AT91
bool "AT91/Microchip SoCs"
- depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V7 || ARM_SINGLE_ARMV7M
+ depends on (CPU_LITTLE_ENDIAN && (ARCH_MULTI_V4T || ARCH_MULTI_V5)) || \
+ ARCH_MULTI_V7 || ARM_SINGLE_ARMV7M
select ARM_CPU_SUSPEND if PM && ARCH_MULTI_V7
select COMMON_CLK_AT91
select GPIOLIB
menuconfig ARCH_CLPS711X
bool "Cirrus Logic EP721x/EP731x-based"
depends on ARCH_MULTI_V4T
+ depends on CPU_LITTLE_ENDIAN
select CLPS711X_TIMER
select CPU_ARM720T
select GPIOLIB
menuconfig ARCH_DAVINCI
bool "TI DaVinci"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select DAVINCI_TIMER
select ZONE_DMA
select PM_GENERIC_DOMAINS if PM
menuconfig ARCH_EP93XX
bool "EP93xx-based"
depends on ARCH_MULTI_V4T
+ depends on CPU_LITTLE_ENDIAN
select ARCH_SPARSEMEM_ENABLE
select ARM_AMBA
select ARM_VIC
menuconfig ARCH_EXYNOS
bool "Samsung Exynos"
depends on ARCH_MULTI_V7
- select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
select EXYNOS_IRQ_COMBINER
menuconfig ARCH_GEMINI
bool "Cortina Systems Gemini"
depends on ARCH_MULTI_V4
+ depends on CPU_LITTLE_ENDIAN
select ARCH_HAS_RESET_CONTROLLER
select ARM_AMBA
select ARM_APPENDED_DTB # Old Redboot bootloaders deployed
config ARCH_HIGHBANK
bool "Calxeda ECX-1000/2000 (Highbank/Midway)"
depends on ARCH_MULTI_V7
- select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_ERRATA_764369 if SMP
select ARM_ERRATA_775420
# SPDX-License-Identifier: GPL-2.0-only
config ARCH_HISI
bool "Hisilicon SoC Support"
- depends on ARCH_MULTI_V7 || ARCH_MULTI_V5
+ depends on ARCH_MULTI_V7 || (ARCH_MULTI_V5 && CPU_LITTLE_ENDIAN)
select ARM_AMBA
select ARM_GIC if ARCH_MULTI_V7
select ARM_TIMER_SP804
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_MXC
bool "Freescale i.MX family"
- depends on ARCH_MULTI_V4_V5 || ARCH_MULTI_V6_V7 || ARM_SINGLE_ARMV7M
- select ARCH_SUPPORTS_BIG_ENDIAN
+ depends on (ARCH_MULTI_V4_V5 && CPU_LITTLE_ENDIAN) || \
+ ARCH_MULTI_V6_V7 || ARM_SINGLE_ARMV7M
select CLKSRC_IMX_GPT
select GENERIC_IRQ_CHIP
select GPIOLIB
menuconfig ARCH_IOP32X
bool "IOP32x-based platforms"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select CPU_XSCALE
select GPIO_IOP
select GPIOLIB
select ARCH_HAS_RESET_CONTROLLER
select ARM_ERRATA_798181 if SMP
select COMMON_CLK_KEYSTONE
- select ARCH_SUPPORTS_BIG_ENDIAN
select ZONE_DMA if ARM_LPAE
select PINCTRL
select PM_GENERIC_DOMAINS if PM
config ARCH_LPC32XX
bool "NXP LPC32XX"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select ARM_AMBA
select CLKSRC_LPC32XX
select CPU_ARM926T
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_MMP
bool "Marvell PXA168/910/MMP2/MMP3"
- depends on ARCH_MULTI_V5 || ARCH_MULTI_V7
+ depends on (CPU_LITTLE_ENDIAN && ARCH_MULTI_V5) || ARCH_MULTI_V7
select GPIO_PXA
select GPIOLIB
select PINCTRL
menuconfig ARCH_MOXART
bool "MOXA ART SoC"
depends on ARCH_MULTI_V4
+ depends on CPU_LITTLE_ENDIAN
select CPU_FA526
select ARM_DMA_MEM_BUFFERABLE
select FARADAY_FTINTC010
menuconfig ARCH_MV78XX0
bool "Marvell MV78xx0"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select CPU_FEROCEON
select GPIOLIB
select MVEBU_MBUS
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_MVEBU
bool "Marvell Engineering Business Unit (MVEBU) SoCs"
- depends on ARCH_MULTI_V7 || ARCH_MULTI_V5
- select ARCH_SUPPORTS_BIG_ENDIAN
+ depends on ARCH_MULTI_V7 || (ARCH_MULTI_V5 && CPU_LITTLE_ENDIAN)
select CLKSRC_MMIO
select PINCTRL
select PLAT_ORION
config ARCH_MXS
bool "Freescale MXS (i.MX23, i.MX28) support"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select GPIOLIB
select MXS_TIMER
select PINCTRL
menuconfig ARCH_NOMADIK
bool "ST-Ericsson Nomadik"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select ARM_AMBA
select ARM_VIC
select CLKSRC_NOMADIK_MTU
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_NPCM
bool "Nuvoton NPCM Architecture"
- depends on ARCH_MULTI_V5 || ARCH_MULTI_V7
+ depends on (ARCH_MULTI_V5 && CPU_LITTLE_ENDIAN) || ARCH_MULTI_V7
select PINCTRL
if ARCH_NPCM
config ARCH_NSPIRE
bool "TI-NSPIRE based"
depends on ARCH_MULTI_V4_V5
+ depends on CPU_LITTLE_ENDIAN
select CPU_ARM926T
select GENERIC_IRQ_CHIP
select ARM_AMBA
menuconfig ARCH_ORION5X
bool "Marvell Orion"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select CPU_FEROCEON
select GPIOLIB
select MVEBU_MBUS
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_OXNAS
bool "Oxford Semiconductor OXNAS Family SoCs"
+ depends on (ARCH_MULTI_V5 && CPU_LITTLE_ENDIAN) || ARCH_MULTI_V6
select ARCH_HAS_RESET_CONTROLLER
select COMMON_CLK_OXNAS
select GPIOLIB
select RESET_OXNAS
select VERSATILE_FPGA_IRQ
select PINCTRL
- depends on ARCH_MULTI_V5 || ARCH_MULTI_V6
help
Support for OxNas SoC family developed by Oxford Semiconductor.
menuconfig ARCH_QCOM
bool "Qualcomm Support"
depends on ARCH_MULTI_V7
- select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_GIC
select ARM_AMBA
select PINCTRL
menuconfig ARCH_S3C24XX
bool "Samsung S3C24XX SoCs"
depends on ARCH_MULTI_V4T || ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select ATAGS
select CLKSRC_SAMSUNG_PWM
select GPIO_SAMSUNG
bool "Altera SOCFPGA family"
depends on ARCH_MULTI_V7
select ARCH_HAS_RESET_CONTROLLER
- select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
select CACHE_L2X0
menuconfig PLAT_SPEAR
bool "ST SPEAr Family"
- depends on ARCH_MULTI_V7 || ARCH_MULTI_V5
+ depends on ARCH_MULTI_V7 || (ARCH_MULTI_V5 && CPU_LITTLE_ENDIAN)
select ARM_AMBA
select CLKSRC_MMIO
select GPIOLIB
# SPDX-License-Identifier: GPL-2.0-only
menuconfig ARCH_SUNXI
bool "Allwinner SoCs"
- depends on ARCH_MULTI_V5 || ARCH_MULTI_V7
+ depends on (CPU_LITTLE_ENDIAN && ARCH_MULTI_V5) || ARCH_MULTI_V7
select ARCH_HAS_RESET_CONTROLLER
select CLKSRC_MMIO
select GENERIC_IRQ_CHIP
default ARCH_SUNXI
select ARM_GIC
select ARM_PSCI
- select ARCH_SUPPORTS_BIG_ENDIAN
select HAVE_ARM_ARCH_TIMER
select SUN5I_HSTIMER
config ARCH_VERSATILE
bool "ARM Ltd. Versatile family"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select ARM_AMBA
select ARM_TIMER_SP804
select ARM_VIC
menuconfig ARCH_INTEGRATOR
bool "ARM Ltd. Integrator family"
depends on ARCH_MULTI_V4T || ARCH_MULTI_V5 || ARCH_MULTI_V6
+ depends on CPU_LITTLE_ENDIAN || ARCH_MULTI_V6
select ARM_AMBA
select CMA
select DMA_CMA
menuconfig ARCH_REALVIEW
bool "ARM Ltd. RealView family"
- depends on ARCH_MULTI_V5 || ARCH_MULTI_V6 || ARCH_MULTI_V7
+ depends on (CPU_LITTLE_ENDIAN && ARCH_MULTI_V5) || ARCH_MULTI_V6 || ARCH_MULTI_V7
select ARM_AMBA
select ARM_GIC
select ARM_TIMER_SP804
menuconfig ARCH_VEXPRESS
bool "ARM Ltd. Versatile Express family"
depends on ARCH_MULTI_V7
- select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
select ARM_GLOBAL_TIMER
config ARCH_WM8505
bool "VIA/Wondermedia 85xx and WM8650"
depends on ARCH_MULTI_V5
+ depends on CPU_LITTLE_ENDIAN
select ARCH_VT8500
select CPU_ARM926T
bool "Xilinx Zynq ARM Cortex A9 Platform"
depends on ARCH_MULTI_V7
select ARCH_HAS_RESET_CONTROLLER
- select ARCH_SUPPORTS_BIG_ENDIAN
select ARM_AMBA
select ARM_GIC
select ARM_GLOBAL_TIMER
If unsure, say Y.
+choice
+ prompt "CPU Endianess"
+ default CPU_LITTLE_ENDIAN
+
+config CPU_LITTLE_ENDIAN
+ bool "Built little-endian kernel"
+ help
+ Say Y if you plan on running a kernel in little-endian mode.
+ This is the default and is used in practically all modern user
+ space builds.
+
config CPU_BIG_ENDIAN
bool "Build big-endian kernel"
- depends on ARCH_SUPPORTS_BIG_ENDIAN
depends on !LD_IS_LLD
help
Say Y if you plan on running a kernel in big-endian mode.
- Note that your board must be properly built and your board
- port must properly enable any big-endian related features
- of your chipset/board/processor.
+ This works on many machines using ARMv6 or newer processors
+ but requires big-endian user space.
+
+ The only ARMv5 platform with big-endian support is
+ Intel IXP4xx.
+
+endchoice
config CPU_ENDIAN_BE8
bool
config ARM_HEAVY_MB
bool
-config ARCH_SUPPORTS_BIG_ENDIAN
- bool
- help
- This option specifies the architecture can support big endian
- operation.
-
config DEBUG_ALIGN_RODATA
bool "Make rodata strictly non-executable"
depends on STRICT_KERNEL_RWX
projects / linux.git / commitdiff