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# SPDX-License-Identifier: GPL-2.0-only
config ARM
bool
select HAS_KALLSYMS
select HAS_CACHE
select HAVE_CONFIGURABLE_TEXT_BASE if !RELOCATABLE
select HAVE_IMAGE_COMPRESSION
select HAVE_ARCH_KASAN
select HAS_ARCH_SJLJ
select ARM_OPTIMZED_STRING_FUNCTIONS if KASAN
default y
config ARM_LINUX
bool
default y
depends on CMD_BOOTZ || CMD_BOOTU || BOOTM
config HAVE_MACH_ARM_HEAD
bool
config ARM_USE_COMPRESSED_DTB
bool
select USE_COMPRESSED_DTB
config TEXT_BASE
hex
default 0x0
menu "System Type"
config ARCH_STM32
bool
help
Selected by both STM32 MCUs and MPUs to restrict driver
visibility.
choice
prompt "ARM system type"
config ARCH_AT91
bool "Atmel AT91"
select GPIOLIB
select CLKDEV_LOOKUP
select HAS_DEBUG_LL
select HAVE_CLK
select COMMON_CLK_AT91 if COMMON_CLK_OF_PROVIDER
config ARCH_BCM283X
bool "Broadcom BCM283x based boards"
select GPIOLIB
select CLKDEV_LOOKUP
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
select CLOCKSOURCE_BCM283X
select ARM_AMBA
select HAS_DEBUG_LL
select RELOCATABLE
select OFTREE
select OFDEVICE
select HAVE_PBL_MULTI_IMAGES
config ARCH_CLPS711X
bool "Cirrus Logic EP711x/EP721x/EP731x"
select CLKDEV_LOOKUP
select CLOCKSOURCE_CLPS711X
select COMMON_CLK
select CPU_32v4T
select GPIOLIB
select MFD_SYSCON
config ARCH_DAVINCI
bool "TI Davinci"
select CPU_ARM926T
select HAS_DEBUG_LL
select GPIOLIB
config ARCH_DIGIC
bool "Canon DIGIC-based cameras"
select CPU_ARM946E
select HAS_DEBUG_LL
select CLOCKSOURCE_DIGIC
select GPIOLIB
help
Support for Canon's digital cameras that use the DIGIC4 chip.
config ARCH_EP93XX
bool "Cirrus Logic EP93xx"
select CPU_ARM920T
select GENERIC_GPIO
config ARCH_IMX
bool "Freescale iMX-based"
select GPIOLIB
select COMMON_CLK
select CLKDEV_LOOKUP
select WATCHDOG_IMX_RESET_SOURCE
select HAS_DEBUG_LL
config ARCH_LAYERSCAPE
bool "NXP Layerscape based"
select GPIOLIB
select HAS_DEBUG_LL
select HAVE_PBL_MULTI_IMAGES
select COMMON_CLK
select CLKDEV_LOOKUP
select COMMON_CLK_OF_PROVIDER
select HW_HAS_PCI
select OFTREE
select OFDEVICE
config ARCH_MVEBU
bool "Marvell EBU platforms"
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
select CLKDEV_LOOKUP
select GPIOLIB
select HAS_DEBUG_LL
select HAVE_MACH_ARM_HEAD
select HAVE_PBL_MULTI_IMAGES
select HW_HAS_PCI
select MVEBU_MBUS
select OFTREE
select OF_ADDRESS_PCI
select PINCTRL
config ARCH_MXS
bool "Freescale i.MX23/28 (mxs) based"
select GPIOLIB
select GENERIC_GPIO
select COMMON_CLK
select CLKDEV_LOOKUP
select HAS_DEBUG_LL
select HAVE_PBL_MULTI_IMAGES
config ARCH_NOMADIK
bool "STMicroelectronics Nomadik"
select CPU_ARM926T
select CLOCKSOURCE_NOMADIK
select HAVE_CLK
help
Support for the Nomadik platform by ST-Ericsson
config ARCH_OMAP
bool "TI OMAP"
select HAS_DEBUG_LL
select GPIOLIB
config ARCH_PXA
bool "Intel/Marvell PXA based"
select GENERIC_GPIO
config ARCH_ROCKCHIP
bool "Rockchip RX3xxx"
select COMMON_CLK
select CLKDEV_LOOKUP
select COMMON_CLK_OF_PROVIDER
select GPIOLIB
select PINCTRL
select PINCTRL_ROCKCHIP
select OFTREE
select HAVE_PBL_MULTI_IMAGES
select HAS_DEBUG_LL
config ARCH_SOCFPGA
bool "Altera SOCFPGA"
select HAS_DEBUG_LL
select ARM_SMP_TWD
select CPU_V7
select COMMON_CLK
select CLKDEV_LOOKUP
config ARCH_S3C24xx
bool "Samsung S3C2410, S3C2440"
select ARCH_SAMSUNG
select CPU_ARM920T
select GENERIC_GPIO
config ARCH_S5PCxx
bool "Samsung S5PC110, S5PV210"
select ARCH_SAMSUNG
select CPU_V7
select GENERIC_GPIO
config ARCH_S3C64xx
bool "Samsung S3C64xx"
select ARCH_SAMSUNG
select CPU_V6
select GENERIC_GPIO
config ARCH_STM32MP
bool "STMicroelectronics STM32MP"
select ARCH_STM32
select CPU_V7
select HAVE_PBL_MULTI_IMAGES
select CLKDEV_LOOKUP
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
select HAS_DEBUG_LL
select HAVE_CLK
select GPIOLIB
select ARCH_HAS_RESET_CONTROLLER
select ARM_AMBA
select ARM_SMCCC
select ARM_USE_COMPRESSED_DTB
config ARCH_VERSATILE
bool "ARM Versatile boards (ARM926EJ-S)"
select GPIOLIB
select HAVE_CLK
select HAS_DEBUG_LL
config ARCH_VEXPRESS
bool "ARM Vexpress & virt boards"
select HAS_DEBUG_LL
select CPU_V7
select ARM_AMBA
select AMBA_SP804
select CLKDEV_LOOKUP
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
select OFTREE
select OFDEVICE
select RELOCATABLE
select HAVE_PBL_MULTI_IMAGES
config ARCH_TEGRA
bool "NVIDIA Tegra"
select CPU_V7
select HAS_DEBUG_LL
select HW_HAS_PCI
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
select CLKDEV_LOOKUP
select GPIOLIB
select GPIO_TEGRA
select HAVE_PBL_MULTI_IMAGES
select OFDEVICE
select OFTREE
select RELOCATABLE
select RESET_CONTROLLER
select PINCTRL
config ARCH_UEMD
bool "RC Module UEMD Platform"
select CPU_ARM1176
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
select CLKDEV_LOOKUP
select OFDEVICE
select OFTREE
select CLOCKSOURCE_UEMD
select HAS_DEBUG_LL
config ARCH_ZYNQ
bool "Xilinx Zynq-based boards"
select HAS_DEBUG_LL
select PBL_IMAGE
select GPIOLIB
config ARCH_ZYNQMP
bool "Xilinx ZynqMP-based boards"
select CPU_V8
select HAS_DEBUG_LL
select HAVE_PBL_MULTI_IMAGES
select ARM_SMCCC
select COMMON_CLK
select COMMON_CLK_OF_PROVIDER
select CLKDEV_LOOKUP
select GPIOLIB
select OFDEVICE
select OFTREE
select RELOCATABLE
select SYS_SUPPORTS_64BIT_KERNEL
select HAS_MACB
config ARCH_ARM64_VIRT
bool "ARM64 QEMU Virt board"
select CPU_V8
select HAVE_PBL_MULTI_IMAGES
select OFDEVICE
select OFTREE
select RELOCATABLE
select SYS_SUPPORTS_64BIT_KERNEL
select ARM_AMBA
select BOARD_ARM_VIRT
select HW_HAS_PCI
endchoice
source "arch/arm/cpu/Kconfig"
source "arch/arm/mach-at91/Kconfig"
source "arch/arm/mach-bcm283x/Kconfig"
source "arch/arm/mach-clps711x/Kconfig"
source "arch/arm/mach-davinci/Kconfig"
source "arch/arm/mach-digic/Kconfig"
source "arch/arm/mach-ep93xx/Kconfig"
source "arch/arm/mach-imx/Kconfig"
source "arch/arm/mach-layerscape/Kconfig"
source "arch/arm/mach-mxs/Kconfig"
source "arch/arm/mach-mvebu/Kconfig"
source "arch/arm/mach-nomadik/Kconfig"
source "arch/arm/mach-omap/Kconfig"
source "arch/arm/mach-pxa/Kconfig"
source "arch/arm/mach-rockchip/Kconfig"
source "arch/arm/mach-samsung/Kconfig"
source "arch/arm/mach-socfpga/Kconfig"
source "arch/arm/mach-stm32mp/Kconfig"
source "arch/arm/mach-versatile/Kconfig"
source "arch/arm/mach-vexpress/Kconfig"
source "arch/arm/mach-tegra/Kconfig"
source "arch/arm/mach-uemd/Kconfig"
source "arch/arm/mach-zynq/Kconfig"
source "arch/arm/mach-zynqmp/Kconfig"
config BOARD_ARM_VIRT
bool
select BOARD_ARM_GENERIC_DT
select BOARD_QEMU_VIRT
select OF_OVERLAY
config BOARD_ARM_GENERIC_DT
select BOARD_GENERIC_DT
select ARM_AMBA
depends on HAVE_PBL_MULTI_IMAGES
depends on OFDEVICE
bool "Build generic ARM device tree 2nd stage image"
help
This enables compilation of a generic image that can be started 2nd
stage from barebox or from qemu. It picks up a device tree passed
in r2 like the Kernel does, so it could be used anywhere where a Kernel
image could be used. The image will be called images/barebox-dt-2nd.img
config BOARD_ARM_GENERIC_DT_AARCH64
bool
depends on CPU_V8
depends on BOARD_ARM_GENERIC_DT
default y
config ARM_ASM_UNIFIED
bool
config AEABI
bool "Use the ARM EABI to compile barebox"
depends on !CPU_V8
help
This option allows for barebox to be compiled using the latest
ARM ABI (aka EABI).
To use this you need GCC version 4.0.0 or later.
config THUMB2_BAREBOX
select ARM_ASM_UNIFIED
select AEABI
depends on !ARCH_TEGRA && !ARCH_AT91
depends on CPU_V7 && !CPU_32v4T && !CPU_32v5 && !CPU_32v6
bool "Compile barebox in thumb-2 mode (read help)"
help
This enables compilation of barebox in thumb-2 mode which generates
~25% smaller binaries. ARM assembly code needs some fixups to be able
to work correctly in thumb-2 mode. the barebox core should have these
fixups since most assembly code is derived from the Kernel. However,
your board lowlevel init code may break in thumb-2 mode. You have been
warned.
config ARM_BOARD_APPEND_ATAG
bool "Let board specific code to add ATAGs to be passed to the kernel"
depends on ARM_LINUX && !CPU_V8
help
This option is purely to start some vendor provided kernels.
** DO NOT USE FOR YOUR OWN DESIGNS! **
config ARM_BOARD_PREPEND_ATAG
bool "Prepend the board specific ATAGs"
depends on ARM_BOARD_APPEND_ATAG
help
Choose this option if your kernel crops the passed ATAG list e.g. at
ATAG_MEM, also cropping off the board specific ATAGs. This option
will pass all board specific ATAGs in front of all other ATAGs.
This option is purely to start some vendor provided kernels.
** DO NOT USE FOR YOUR OWN DESIGNS! **
endmenu
choice
prompt "Barebox code model"
help
You should only select this option if you have a workload that
actually benefits from 64-bit processing or if your machine has
large memory. You will only be presented a single option in this
menu if your system does not support both 32-bit and 64-bit modes.
config 32BIT
bool "32-bit barebox"
depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
help
Select this option if you want to build a 32-bit barebox.
config 64BIT
bool "64-bit barebox"
depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
select ARCH_DMA_ADDR_T_64BIT
help
Select this option if you want to build a 64-bit barebox.
endchoice
menu "ARM specific settings"
config ARM_OPTIMZED_STRING_FUNCTIONS
bool "use assembler optimized string functions"
#
# memset() and memcpy() in arm/lib64/mem[set|cpy].S are
# written with assumption of enabled MMU and cache. Depending
# on the inputs in may fail with Alignement exception if used
# without MMU
#
depends on !CPU_V8 || MMU
help
Say yes here to use assembler optimized memcpy / memset functions.
These functions work much faster than the normal versions but
increase your binary size.
config ARM_EXCEPTIONS
select ARCH_HAS_DATA_ABORT_MASK
bool "enable arm exception handling support"
default y
config ARM_UNWIND
bool "enable stack unwinding support"
depends on AEABI
select ARCH_HAS_STACK_DUMP
help
This option enables stack unwinding support in barebox
using the information automatically generated by the
compiler. The resulting kernel image is slightly bigger but
the performance is not affected. Currently, this feature
only works with EABI compilers. If unsure say Y.
config ARM_SEMIHOSTING
bool "enable ARM semihosting support"
depends on !CPU_V8
help
This option enables ARM semihosting support in barebox. ARM
semihosting is a communication discipline that allows code
running on target ARM cpu perform system calls and access
the data on the host computer connected to the target via
debugging channel (JTAG, SWD). If unsure say N
config ARM_SMCCC
bool
help
This option enables barebox to invoke ARM secure monitor calls.
config ARM_SECURE_MONITOR
depends on CPU_32v7 || CPU_64v8
select ARM_SMCCC
bool
help
This option enables barebox to service ARM secure monitor calls.
config ARM_PSCI_OF
bool
config ARM_PSCI
bool "enable Power State Coordination Interface (PSCI) support"
depends on CPU_V7
select ARM_SECURE_MONITOR
select ARM_PSCI_OF
help
PSCI is used for controlling secondary CPU cores on some systems. Say
yes here if you want barebox to service PSCI calls on such systems.
config ARM_PSCI_CLIENT
bool "Enable barebox PSCI client support"
depends on CPU_32v7 || CPU_64v8
select ARM_SMCCC
select ARM_PSCI_OF
help
Say yes here if you want barebox to communicate with a secure monitor
for resetting/powering off the system over PSCI. barebox' PSCI version
information will also be shared with Linux via device tree fixups.
config ARM_PSCI_DEBUG
bool "Enable PSCI debugging"
depends on ARM_PSCI
help
This enables debug output from the PSCI functions during runtime of the
Kernel. This needs board specific help, the board needs to provide a putc
function using psci_set_putc(). This putc function will then be called
during runtime of the Kernel, so it must be able to cope with that. It may
happen for example that the Kernel has turned off some clocks needed in the
putc function.
Only use for debugging.
config ARM_MODULE_PLTS
bool "Use PLTs to allow loading modules placed far from barebox image"
depends on MODULES
select QSORT
help
Allocate PLTs when loading modules so that jumps and calls whose
targets are too far away for their relative offsets to be encoded
in the instructions themselves can be bounced via veneers in the
module's PLT. The modules will use slightly more memory, but after
rounding up to page size, the actual memory footprint is usually
the same.
Say y if your memory configuration puts the heap to far away from the
barebox image, causing relocation out of range errors
config ARM_ATF
bool
endmenu
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