path: root/nuttx/arch/arm/Kconfig

#
# For a description of the syntax of this configuration file,
# see misc/tools/kconfig-language.txt.
#

if ARCH_ARM
comment "ARM Options"

choice
	prompt "ARM chip selection"
	default ARCH_CHIP_STM32

config ARCH_CHIP_A1X
	bool "Allwinner A1X"
	select ARCH_CORTEXA8
	select ARCH_HAVE_FPU
	select ARCH_HAVE_MMU
	select ARCH_USE_MMU
	select ARCH_HAVE_LOWVECTORS
	select ARCH_HAVE_SDRAM
	select BOOT_RUNFROMSDRAM
	select ARCH_HAVE_ADDRENV
	select ARCH_NEED_ADDRENV_MAPPING
	---help---
		Allwinner A1X family: A10, A10S (A12), A13 (ARM Cortex-A8)

config ARCH_CHIP_C5471
	bool "TMS320 C5471"
	select ARCH_ARM7TDMI
	select ARCH_HAVE_LOWVECTORS
	select ARCH_HAVE_OTHER_UART
	---help---
		TI TMS320 C5471, A180, or DA180 (ARM7TDMI)

config ARCH_CHIP_CALYPSO
	bool "Calypso"
	select ARCH_ARM7TDMI
	select ARCH_HAVE_HEAP2
	select ARCH_HAVE_LOWVECTORS
	select ARCH_HAVE_OTHER_UART
	---help---
		TI Calypso-based cell phones (ARM7TDMI)

config ARCH_CHIP_DM320
	bool "TMS320 DM320"
	select ARCH_ARM926EJS
	select ARCH_HAVE_LOWVECTORS
	---help---
		TI DMS320 DM320 (ARM926EJS)

config ARCH_CHIP_EFM32
	bool "Energy Micro"
	select ARCH_HAVE_CMNVECTOR
	select ARMV7M_CMNVECTOR
	---help---
		Energy Micro EFM32 microcontrollers (ARM Cortex-M).

config ARCH_CHIP_IMX
	bool "Freescale iMX"
	select ARCH_ARM920T
	select ARCH_HAVE_HEAP2
	select ARCH_HAVE_LOWVECTORS
	---help---
		Freescale iMX architectures (ARM920T)

config ARCH_CHIP_KINETIS
	bool "Freescale Kinetis"
	select ARCH_CORTEXM4
	select ARCH_HAVE_MPU
	select ARCH_HAVE_FPU
	select ARCH_HAVE_RAMFUNCS
	---help---
		Freescale Kinetis Architectures (ARM Cortex-M4)

config ARCH_CHIP_KL
	bool "Freescale Kinetis L"
	select ARCH_CORTEXM0
	select ARCH_HAVE_CMNVECTOR
	---help---
		Freescale Kinetis L Architectures (ARM Cortex-M0+)

config ARCH_CHIP_LM
	bool "TI/Luminary Stellaris"
	select ARCH_HAVE_CMNVECTOR
	select ARCH_HAVE_MPU
	---help---
		TI/Luminary Stellaris LMS3 and LM4F architectures (ARM Cortex-M3/4)

config ARCH_CHIP_TIVA
	bool "TI Tiva"
	select ARCH_HAVE_CMNVECTOR
	select ARCH_HAVE_MPU
	select ARCH_HAVE_FPU
	---help---
		TI Tiva TM4C architectures (ARM Cortex-M4)

config ARCH_CHIP_LPC17XX
	bool "NXP LPC17xx"
	select ARCH_CORTEXM3
	select ARCH_HAVE_CMNVECTOR
	select ARCH_HAVE_MPU
	---help---
		NXP LPC17xx architectures (ARM Cortex-M3)

config ARCH_CHIP_LPC214X
	bool "NXP LPC214x"
	select ARCH_ARM7TDMI
	select ARCH_HAVE_LOWVECTORS
	---help---
		NXP LPC2145x architectures (ARM7TDMI)

config ARCH_CHIP_LPC2378
	bool "NXP LPC2378"
	select ARCH_ARM7TDMI
	select ARCH_HAVE_LOWVECTORS
	---help---
		NXP LPC2145x architectures (ARM7TDMI)

config ARCH_CHIP_LPC31XX
	bool "NXP LPC31XX"
	select ARCH_ARM926EJS
	select ARCH_HAVE_LOWVECTORS
	---help---
		NPX LPC31XX architectures (ARM926EJS).

config ARCH_CHIP_LPC43XX
	bool "NXP LPC43XX"
	select ARCH_CORTEXM4
	select ARCH_HAVE_CMNVECTOR
	select ARMV7M_CMNVECTOR
	select ARCH_HAVE_MPU
	select ARCH_HAVE_FPU
	---help---
		NPX LPC43XX architectures (ARM Cortex-M4).

config ARCH_CHIP_NUC1XX
	bool "Nuvoton NUC100/120"
	select ARCH_CORTEXM0
	select ARCH_HAVE_CMNVECTOR
	---help---
		NPX LPC43XX architectures (ARM Cortex-M4).

config ARCH_CHIP_SAMA5
	bool "Atmel SAMA5"
	select ARCH_CORTEXA5
	select ARCH_HAVE_FPU
	select ARCH_HAVE_LOWVECTORS
	select ARCH_HAVE_I2CRESET
	select ARCH_HAVE_TICKLESS
	select ARCH_HAVE_ADDRENV
	select ARCH_NEED_ADDRENV_MAPPING
	---help---
		Atmel SAMA5 (ARM Cortex-A5)

config ARCH_CHIP_SAMD
	bool "Atmel SAMD"
	select ARCH_CORTEXM0
	select ARCH_HAVE_CMNVECTOR
	---help---
		Atmel SAMD (ARM Cortex-M0+)

config ARCH_CHIP_SAM34
	bool "Atmel SAM3/SAM4"
	select ARCH_HAVE_CMNVECTOR
	select ARCH_HAVE_MPU
	select ARCH_HAVE_RAMFUNCS
	---help---
		Atmel SAM3 (ARM Cortex-M3) and SAM4 (ARM Cortex-M4) architectures

config ARCH_CHIP_SAMV7
	bool "Atmel SAMV7"
	select ARCH_HAVE_CMNVECTOR
	select ARMV7M_CMNVECTOR
	select ARCH_CORTEXM7
	select ARCH_HAVE_MPU
	select ARCH_HAVE_RAMFUNCS
	---help---
		Atmel SAMV7 (ARM Cortex-M7) architectures

config ARCH_CHIP_STM32
	bool "STMicro STM32"
	select ARCH_HAVE_CMNVECTOR
	select ARCH_HAVE_MPU
	select ARCH_HAVE_I2CRESET
	select ARCH_HAVE_HEAPCHECK
	---help---
		STMicro STM32 architectures (ARM Cortex-M3/4).

config ARCH_CHIP_STR71X
	bool "STMicro STR71x"
	select ARCH_ARM7TDMI
	select ARCH_HAVE_LOWVECTORS
	---help---
		STMicro STR71x architectures (ARM7TDMI).

endchoice

config ARCH_ARM7TDMI
	bool
	default n

config ARCH_ARM926EJS
	bool
	default n
	select ARCH_HAVE_MMU
	select ARCH_USE_MMU

config ARCH_ARM920T
	bool
	default n
	select ARCH_HAVE_MMU
	select ARCH_USE_MMU

config ARCH_CORTEXM0
	bool
	default n
	select ARCH_HAVE_IRQPRIO

config ARCH_CORTEXM3
	bool
	default n
	select ARCH_HAVE_IRQPRIO
	select ARCH_HAVE_RAMVECTORS
	select ARCH_HAVE_HIPRI_INTERRUPT

config ARCH_CORTEXM4
	bool
	default n
	select ARCH_HAVE_IRQPRIO
	select ARCH_HAVE_RAMVECTORS
	select ARCH_HAVE_HIPRI_INTERRUPT

config ARCH_CORTEXM7
	bool
	default n
	select ARCH_HAVE_IRQPRIO
	select ARCH_HAVE_RAMVECTORS
	select ARCH_HAVE_HIPRI_INTERRUPT

config ARCH_CORTEXA5
	bool
	default n
	select ARCH_HAVE_IRQPRIO
	select ARCH_HAVE_MMU
	select ARCH_USE_MMU
	select ARCH_HAVE_COHERENT_DCACHE if ELF

config ARCH_CORTEXA8
	bool
	default n
	select ARCH_HAVE_IRQPRIO
	select ARCH_HAVE_MMU
	select ARCH_USE_MMU
	select ARCH_HAVE_COHERENT_DCACHE if ELF

config ARCH_FAMILY
	string
	default "arm"		if ARCH_ARM7TDMI || ARCH_ARM926EJS || ARCH_ARM920T
	default "armv6-m"	if ARCH_CORTEXM0
	default "armv7-a"	if ARCH_CORTEXA5 || ARCH_CORTEXA8
	default "armv7-m"	if ARCH_CORTEXM3 || ARCH_CORTEXM4 || ARCH_CORTEXM7

config ARCH_CHIP
	string
	default "a1x"		if ARCH_CHIP_A1X
	default "c5471"		if ARCH_CHIP_C5471
	default "calypso"	if ARCH_CHIP_CALYPSO
	default "dm320"		if ARCH_CHIP_DM320
	default "efm32"		if ARCH_CHIP_EFM32
	default "imx"		if ARCH_CHIP_IMX
	default "kinetis"	if ARCH_CHIP_KINETIS
	default "kl"		if ARCH_CHIP_KL
	default "tiva"		if ARCH_CHIP_LM || ARCH_CHIP_TIVA
	default "lpc17xx"	if ARCH_CHIP_LPC17XX
	default "lpc214x"	if ARCH_CHIP_LPC214X
	default "lpc2378"	if ARCH_CHIP_LPC2378
	default "lpc31xx"	if ARCH_CHIP_LPC31XX
	default "lpc43xx"	if ARCH_CHIP_LPC43XX
	default "nuc1xx"	if ARCH_CHIP_NUC1XX
	default "sama5"		if ARCH_CHIP_SAMA5
	default "samd"		if ARCH_CHIP_SAMD
	default "sam34"		if ARCH_CHIP_SAM34
	default "samv7"		if ARCH_CHIP_SAMV7
	default "stm32"		if ARCH_CHIP_STM32
	default "str71x"	if ARCH_CHIP_STR71X

config ARMV7M_USEBASEPRI
	bool "Use BASEPRI Register"
	default n
	depends on ARCH_CORTEXM3 || ARCH_CORTEXM4 || ARCH_CORTEXM7
	---help---
		Use the BASEPRI register to enable and disable interrupts. By
		default, the PRIMASK register is used for this purpose. This
		usually results in hardfaults when supervisor calls are made.
		Though, these hardfaults are properly handled by the RTOS, the
		hardfaults can confuse some debuggers. With the BASEPRI
		register, these hardfaults, will be avoided. For more details see
		http://www.nuttx.org/doku.php?id=wiki:nxinternal:svcall

config ARCH_HAVE_CMNVECTOR
	bool

config ARMV7M_CMNVECTOR
	bool "Use common ARMv7-M vectors"
	default n
	depends on ARCH_HAVE_CMNVECTOR
	---help---
		Some architectures use their own, built-in vector logic.  Some use only
		the common vector logic.  Some can use either their own built-in vector
		logic or the common vector logic.  This applies only to ARMv7-M
		architectures.

config ARMV7M_LAZYFPU
	bool "Lazy FPU storage"
	default n
	depends on ARCH_HAVE_CMNVECTOR
	---help---
		There are two forms of the common vector logic.  There are pros and
		cons to each option:

		1) The standard common vector logic exploits features of the ARMv7-M
		   architecture to save the all of floating registers on entry into
		   each interrupt and then to restore the floating registers when
		   the interrupt returns.  The primary advantage to this approach is
		   that floating point operations are available in interrupt
		   handling logic.  Since the volatile registers are preserved,
		   operations on the floating point registers by interrupt handling
		   logic has no ill effect.  The downside is, of course, that more
		   stack operations are required on each interrupt to save and store
		   the floating point registers.  Because of the some special
		   features of the ARMv-M, this is not as much overhead as you might
		   expect, but overhead nonetheless.

		2) The lazy FPU common vector logic does not save or restore
		   floating point registers on entry and exit from the interrupt
		   handler. Rather, the floating point registers are not restored
		   until it is absolutely necessary to do so when a context switch
		   occurs and the interrupt handler will be returning to a different
		   floating point context.  Since floating point registers are not
		   protected, floating point operations must not be performed in
		   interrupt handling logic.  Better interrupt performance is be
		   expected, however.

		By default, the "standard" common vector logic is build.  This
		option selects the alternate lazy FPU common vector logic.

config ARCH_HAVE_FPU
	bool
	default n

config ARCH_HAVE_DPFPU
	bool
	default n

config ARCH_FPU
	bool "FPU support"
	default y
	depends on ARCH_HAVE_FPU
	---help---
		Build in support for the ARM Cortex-M4 Floating Point Unit (FPU).
		Check your chip specifications first; not all Cortex-M4 chips
		support the FPU.

config ARCH_DPFPU
	bool "Double precision FPU support"
	default y
	depends on ARCH_FPU && ARCH_HAVE_DPFPU
	---help---
		Enable toolchain support for double precision (64-bit) floating
		point if both the toolchain and the hardware support it.

config ARMV7M_MPU
	bool "MPU support"
	default n
	depends on ARCH_HAVE_MPU
	select ARCH_USE_MPU
	---help---
		Build in support for the ARM Cortex-M3/4 Memory Protection Unit (MPU).
		Check your chip specifications first; not all Cortex-M3/4 chips support the MPU.

config ARMV7M_MPU_NREGIONS
	int "Number of MPU regions"
	default 8
	depends on ARMV7M_MPU
	---help---
		This is the number of protection regions supported by the MPU.

config ARCH_HAVE_LOWVECTORS
	bool

config ARCH_LOWVECTORS
	bool "Vectors in low memory"
	default n
	depends on ARCH_HAVE_LOWVECTORS
	---help---
		Support ARM vectors in low memory.

config ARCH_ROMPGTABLE
	bool "ROM page table"
	default n
	depends on ARCH_USE_MMU
	---help---
		Support a fixed memory mapping use a (read-only) page table in ROM/FLASH.

config DEBUG_HARDFAULT
	bool "Verbose Hard-Fault Debug"
	default n
	depends on DEBUG && (ARCH_CORTEXM3 || ARCH_CORTEXM4 || ARCH_CORTEXM7)
	---help---
		Enables verbose debug output when a hard fault is occurs.  This verbose
		output is sometimes helpful when debugging difficult hard fault problems,
		but may be more than you typcially want to see.

if ARCH_CORTEXM0
source arch/arm/src/armv6-m/Kconfig
endif
if ARCH_CORTEXA5 || ARCH_CORTEXA8
source arch/arm/src/armv7-a/Kconfig
endif
if ARCH_CORTEXM3 || ARCH_CORTEXM4 || ARCH_CORTEXM7
source arch/arm/src/armv7-m/Kconfig
endif
if ARCH_ARM7TDMI || ARCH_ARM926EJS
source arch/arm/src/arm/Kconfig
endif
if ARCH_CHIP_A1X
source arch/arm/src/a1x/Kconfig
endif
if ARCH_CHIP_C5471
source arch/arm/src/c5471/Kconfig
endif
if ARCH_CHIP_CALYPSO
source arch/arm/src/calypso/Kconfig
endif
if ARCH_CHIP_DM320
source arch/arm/src/dm320/Kconfig
endif
if ARCH_CHIP_EFM32
source arch/arm/src/efm32/Kconfig
endif
if ARCH_CHIP_IMX
source arch/arm/src/imx/Kconfig
endif
if ARCH_CHIP_KINETIS
source arch/arm/src/kinetis/Kconfig
endif
if ARCH_CHIP_KL
source arch/arm/src/kl/Kconfig
endif
if ARCH_CHIP_LM || ARCH_CHIP_TIVA
source arch/arm/src/tiva/Kconfig
endif
if ARCH_CHIP_LPC17XX
source arch/arm/src/lpc17xx/Kconfig
endif
if ARCH_CHIP_LPC214X
source arch/arm/src/lpc214x/Kconfig
endif
if ARCH_CHIP_LPC2378
source arch/arm/src/lpc2378/Kconfig
endif
if ARCH_CHIP_LPC31XX
source arch/arm/src/lpc31xx/Kconfig
endif
if ARCH_CHIP_LPC43XX
source arch/arm/src/lpc43xx/Kconfig
endif
if ARCH_CHIP_NUC1XX
source arch/arm/src/nuc1xx/Kconfig
endif
if ARCH_CHIP_SAMA5
source arch/arm/src/sama5/Kconfig
endif
if ARCH_CHIP_SAMD
source arch/arm/src/samd/Kconfig
endif
if ARCH_CHIP_SAM34
source arch/arm/src/sam34/Kconfig
endif
if ARCH_CHIP_SAMV7
source arch/arm/src/samv7/Kconfig
endif
if ARCH_CHIP_STM32
source arch/arm/src/stm32/Kconfig
endif
if ARCH_CHIP_STR71X
source arch/arm/src/str71x/Kconfig
endif

endif