0001 # SPDX-License-Identifier: GPL-2.0
0002 #
0003 # Kconfig for uClinux(non-paged MM) depend configurations
0004 # Hyok S. Choi <hyok.choi@samsung.com>
0005 #
0006
0007 config SET_MEM_PARAM
0008 bool "Set flash/sdram size and base addr"
0009 help
0010 Say Y to manually set the base addresses and sizes.
0011 otherwise, the default values are assigned.
0012
0013 config DRAM_BASE
0014 hex '(S)DRAM Base Address' if SET_MEM_PARAM
0015 default 0x00800000
0016
0017 config DRAM_SIZE
0018 hex '(S)DRAM SIZE' if SET_MEM_PARAM
0019 default 0x00800000
0020
0021 config FLASH_MEM_BASE
0022 hex 'FLASH Base Address' if SET_MEM_PARAM
0023 depends on CPU_ARM740T || CPU_ARM946E || CPU_ARM940T
0024 default 0x00400000
0025
0026 config FLASH_SIZE
0027 hex 'FLASH Size' if SET_MEM_PARAM
0028 depends on CPU_ARM740T || CPU_ARM946E || CPU_ARM940T
0029 default 0x00400000
0030
0031 config PROCESSOR_ID
0032 hex 'Hard wire the processor ID'
0033 default 0x00007700
0034 depends on !(CPU_CP15 || CPU_V7M)
0035 help
0036 If processor has no CP15 register, this processor ID is
0037 used instead of the auto-probing which utilizes the register.
0038
0039 config REMAP_VECTORS_TO_RAM
0040 bool 'Install vectors to the beginning of RAM'
0041 help
0042 The kernel needs to change the hardware exception vectors.
0043 In nommu mode, the hardware exception vectors are normally
0044 placed at address 0x00000000. However, this region may be
0045 occupied by read-only memory depending on H/W design.
0046
0047 If the region contains read-write memory, say 'n' here.
0048
0049 If your CPU provides a remap facility which allows the exception
0050 vectors to be mapped to writable memory, say 'n' here.
0051
0052 Otherwise, say 'y' here. In this case, the kernel will require
0053 external support to redirect the hardware exception vectors to
0054 the writable versions located at DRAM_BASE.
0055
0056 config ARM_MPU
0057 bool 'Use the ARM v7 PMSA Compliant MPU'
0058 depends on CPU_V7 || CPU_V7M
0059 default y if CPU_V7
0060 help
0061 Some ARM systems without an MMU have instead a Memory Protection
0062 Unit (MPU) that defines the type and permissions for regions of
0063 memory.
0064
0065 If your CPU has an MPU then you should choose 'y' here unless you
0066 know that you do not want to use the MPU.
