[mirror_ubuntu-jammy-kernel.git] / arch / arm / Kconfig-nommu

#
# Kconfig for uClinux(non-paged MM) depend configurations
# Hyok S. Choi <hyok.choi@samsung.com>
# 

config SET_MEM_PARAM
	bool "Set flash/sdram size and base addr"
	help
	 Say Y to manually set the base addresses and sizes.
	 otherwise, the default values are assigned.

config DRAM_BASE
	hex '(S)DRAM Base Address' if SET_MEM_PARAM
	default 0x00800000

config DRAM_SIZE
	hex '(S)DRAM SIZE' if SET_MEM_PARAM
	default 0x00800000

config FLASH_MEM_BASE
	hex 'FLASH Base Address' if SET_MEM_PARAM
	default 0x00400000

config FLASH_SIZE
	hex 'FLASH Size' if SET_MEM_PARAM
	default 0x00400000

config PROCESSOR_ID
	hex 'Hard wire the processor ID'
	default 0x00007700
	depends on !(CPU_CP15 || CPU_V7M)
	help
	  If processor has no CP15 register, this processor ID is
	  used instead of the auto-probing which utilizes the register.

config REMAP_VECTORS_TO_RAM
	bool 'Install vectors to the beginning of RAM'
	help
	  The kernel needs to change the hardware exception vectors.
	  In nommu mode, the hardware exception vectors are normally
	  placed at address 0x00000000. However, this region may be
	  occupied by read-only memory depending on H/W design.

	  If the region contains read-write memory, say 'n' here.

	  If your CPU provides a remap facility which allows the exception
	  vectors to be mapped to writable memory, say 'n' here.

	  Otherwise, say 'y' here.  In this case, the kernel will require
	  external support to redirect the hardware exception vectors to
	  the writable versions located at DRAM_BASE.

config ARM_MPU
       bool 'Use the ARM v7 PMSA Compliant MPU'
       depends on CPU_V7
       default y
       help
         Some ARM systems without an MMU have instead a Memory Protection
         Unit (MPU) that defines the type and permissions for regions of
         memory.

         If your CPU has an MPU then you should choose 'y' here unless you
         know that you do not want to use the MPU.
Commit	Line	Data
f8c07de6 HC	1	#
	2	# Kconfig for uClinux(non-paged MM) depend configurations
	3	# Hyok S. Choi <hyok.choi@samsung.com>
	4	#
	5
	6	config SET_MEM_PARAM
	7	bool "Set flash/sdram size and base addr"
	8	help
	9	Say Y to manually set the base addresses and sizes.
	10	otherwise, the default values are assigned.
	11
	12	config DRAM_BASE
	13	hex '(S)DRAM Base Address' if SET_MEM_PARAM
	14	default 0x00800000
	15
	16	config DRAM_SIZE
	17	hex '(S)DRAM SIZE' if SET_MEM_PARAM
	18	default 0x00800000
	19
	20	config FLASH_MEM_BASE
	21	hex 'FLASH Base Address' if SET_MEM_PARAM
	22	default 0x00400000
	23
	24	config FLASH_SIZE
	25	hex 'FLASH Size' if SET_MEM_PARAM
	26	default 0x00400000
	27
f12d0d7c	28	config PROCESSOR_ID
7a8be08b	29	hex 'Hard wire the processor ID'
f12d0d7c	30	default 0x00007700
4477ca45	31	depends on !(CPU_CP15 \|\| CPU_V7M)
f12d0d7c HC	32	help
	33	If processor has no CP15 register, this processor ID is
	34	used instead of the auto-probing which utilizes the register.
	35
c760fc19	36	config REMAP_VECTORS_TO_RAM
8a792e9a	37	bool 'Install vectors to the beginning of RAM'
c760fc19 HC	38	help
	39	The kernel needs to change the hardware exception vectors.
	40	In nommu mode, the hardware exception vectors are normally
	41	placed at address 0x00000000. However, this region may be
	42	occupied by read-only memory depending on H/W design.
	43
	44	If the region contains read-write memory, say 'n' here.
	45
	46	If your CPU provides a remap facility which allows the exception
	47	vectors to be mapped to writable memory, say 'n' here.
	48
	49	Otherwise, say 'y' here. In this case, the kernel will require
	50	external support to redirect the hardware exception vectors to
	51	the writable versions located at DRAM_BASE.
801bb21c JA	52
	53	config ARM_MPU
	54	bool 'Use the ARM v7 PMSA Compliant MPU'
de829776	55	depends on CPU_V7
801bb21c JA	56	default y
	57	help
	58	Some ARM systems without an MMU have instead a Memory Protection
	59	Unit (MPU) that defines the type and permissions for regions of
	60	memory.
	61
	62	If your CPU has an MPU then you should choose 'y' here unless you
	63	know that you do not want to use the MPU.