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 7config 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 13config DRAM_BASE 14 hex '(S)DRAM Base Address' if SET_MEM_PARAM 15 default 0x00800000 16 17config DRAM_SIZE 18 hex '(S)DRAM SIZE' if SET_MEM_PARAM 19 default 0x00800000 20 21config FLASH_MEM_BASE 22 hex 'FLASH Base Address' if SET_MEM_PARAM 23 default 0x00400000 24 25config FLASH_SIZE 26 hex 'FLASH Size' if SET_MEM_PARAM 27 default 0x00400000 28 29config PROCESSOR_ID 30 hex 'Hard wire the processor ID' 31 default 0x00007700 32 depends on !(CPU_CP15 || CPU_V7M) 33 help 34 If processor has no CP15 register, this processor ID is 35 used instead of the auto-probing which utilizes the register. 36 37config REMAP_VECTORS_TO_RAM 38 bool 'Install vectors to the beginning of RAM' 39 help 40 The kernel needs to change the hardware exception vectors. 41 In nommu mode, the hardware exception vectors are normally 42 placed at address 0x00000000. However, this region may be 43 occupied by read-only memory depending on H/W design. 44 45 If the region contains read-write memory, say 'n' here. 46 47 If your CPU provides a remap facility which allows the exception 48 vectors to be mapped to writable memory, say 'n' here. 49 50 Otherwise, say 'y' here. In this case, the kernel will require 51 external support to redirect the hardware exception vectors to 52 the writable versions located at DRAM_BASE. 53 54config ARM_MPU 55 bool 'Use the ARM v7 PMSA Compliant MPU' 56 depends on CPU_V7 || CPU_V7M 57 default y if CPU_V7 58 help 59 Some ARM systems without an MMU have instead a Memory Protection 60 Unit (MPU) that defines the type and permissions for regions of 61 memory. 62 63 If your CPU has an MPU then you should choose 'y' here unless you 64 know that you do not want to use the MPU. 65