1 # SPDX-License-Identifier: GPL-2.0 2 # 3 # Kconfig for uClinux(non-paged MM) depend configurations 4 # Hyok S. Choi <hyok.choi@samsung.com> 5 # 6 7 config SET_MEM_PARAM 8 bool "Set flash/sdram size and base addr" 9 help 10 Say Y to manually set the base addresses and sizes. 11 otherwise, the default values are assigned. 12 13 config DRAM_BASE 14 hex '(S)DRAM Base Address' if SET_MEM_PARAM 15 default 0x00800000 16 17 config DRAM_SIZE 18 hex '(S)DRAM SIZE' if SET_MEM_PARAM 19 default 0x00800000 20 21 config FLASH_MEM_BASE 22 hex 'FLASH Base Address' if SET_MEM_PARAM 23 depends on CPU_ARM740T || CPU_ARM946E || CPU_ARM940T 24 default 0x00400000 25 26 config FLASH_SIZE 27 hex 'FLASH Size' if SET_MEM_PARAM 28 depends on CPU_ARM740T || CPU_ARM946E || CPU_ARM940T 29 default 0x00400000 30 31 config PROCESSOR_ID 32 hex 'Hard wire the processor ID' 33 default 0x00007700 34 depends on !(CPU_CP15 || CPU_V7M) 35 help 36 If processor has no CP15 register, this processor ID is 37 used instead of the auto-probing which utilizes the register. 38 39 config REMAP_VECTORS_TO_RAM 40 bool 'Install vectors to the beginning of RAM' 41 help 42 The kernel needs to change the hardware exception vectors. 43 In nommu mode, the hardware exception vectors are normally 44 placed at address 0x00000000. However, this region may be 45 occupied by read-only memory depending on H/W design. 46 47 If the region contains read-write memory, say 'n' here. 48 49 If your CPU provides a remap facility which allows the exception 50 vectors to be mapped to writable memory, say 'n' here. 51 52 Otherwise, say 'y' here. In this case, the kernel will require 53 external support to redirect the hardware exception vectors to 54 the writable versions located at DRAM_BASE. 55 56 config ARM_MPU 57 bool 'Use the ARM v7 PMSA Compliant MPU' 58 depends on CPU_V7 || CPU_V7M 59 default y if CPU_V7 60 help 61 Some ARM systems without an MMU have instead a Memory Protection 62 Unit (MPU) that defines the type and permissions for regions of 63 memory. 64 65 If your CPU has an MPU then you should choose 'y' here unless you 66 know that you do not want to use the MPU.
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