blob: 36c80d3dd93f2fe64f83d21482ba74fe9fe8cf88 [file] [log] [blame]
Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001# SPDX-License-Identifier: GPL-2.0
Hyok S. Choif8c07de2006-03-27 15:14:19 +01002#
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
Vladimir Murzin49e30bd2019-01-31 13:50:29 +010023 depends on CPU_ARM740T || CPU_ARM946E || CPU_ARM940T
Hyok S. Choif8c07de2006-03-27 15:14:19 +010024 default 0x00400000
25
26config FLASH_SIZE
27 hex 'FLASH Size' if SET_MEM_PARAM
Vladimir Murzin49e30bd2019-01-31 13:50:29 +010028 depends on CPU_ARM740T || CPU_ARM946E || CPU_ARM940T
Hyok S. Choif8c07de2006-03-27 15:14:19 +010029 default 0x00400000
30
Hyok S. Choif12d0d72006-09-26 17:36:37 +090031config PROCESSOR_ID
Greg Ungerer7a8be082007-07-30 02:26:08 +010032 hex 'Hard wire the processor ID'
Hyok S. Choif12d0d72006-09-26 17:36:37 +090033 default 0x00007700
Uwe Kleine-König4477ca42013-03-21 21:02:37 +010034 depends on !(CPU_CP15 || CPU_V7M)
Hyok S. Choif12d0d72006-09-26 17:36:37 +090035 help
36 If processor has no CP15 register, this processor ID is
37 used instead of the auto-probing which utilizes the register.
38
Hyok S. Choic760fc12006-03-27 15:18:50 +010039config REMAP_VECTORS_TO_RAM
Afzal Mohammed8a792e92017-01-07 17:48:10 +010040 bool 'Install vectors to the beginning of RAM'
Hyok S. Choic760fc12006-03-27 15:18:50 +010041 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.
Jonathan Austin801bb212013-02-22 18:56:04 +000055
56config ARM_MPU
57 bool 'Use the ARM v7 PMSA Compliant MPU'
Vladimir Murzin21621832017-10-16 13:00:45 +010058 depends on CPU_V7 || CPU_V7M
Vladimir Murzin9fcb01a2017-10-16 12:57:48 +010059 default y if CPU_V7
Jonathan Austin801bb212013-02-22 18:56:04 +000060 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.