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path: root/arch/arm/Kconfig
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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