xref: /linux/arch/arm/Kconfig-nommu (revision f1f76afd71e0f17af9a35fcb649f4bab53304a4d)
1#
2# Kconfig for uClinux(non-paged MM) depend configurations
3# Hyok S. Choi <hyok.choi@samsung.com>
4#
5
6config 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
12config DRAM_BASE
13	hex '(S)DRAM Base Address' if SET_MEM_PARAM
14	default 0x00800000
15
16config DRAM_SIZE
17	hex '(S)DRAM SIZE' if SET_MEM_PARAM
18	default 0x00800000
19
20config FLASH_MEM_BASE
21	hex 'FLASH Base Address' if SET_MEM_PARAM
22	default 0x00400000
23
24config FLASH_SIZE
25	hex 'FLASH Size' if SET_MEM_PARAM
26	default 0x00400000
27
28config REMAP_VECTORS_TO_RAM
29	bool 'Install vectors to the begining of RAM' if DRAM_BASE
30	depends on DRAM_BASE
31	help
32	  The kernel needs to change the hardware exception vectors.
33	  In nommu mode, the hardware exception vectors are normally
34	  placed at address 0x00000000. However, this region may be
35	  occupied by read-only memory depending on H/W design.
36
37	  If the region contains read-write memory, say 'n' here.
38
39	  If your CPU provides a remap facility which allows the exception
40	  vectors to be mapped to writable memory, say 'n' here.
41
42	  Otherwise, say 'y' here.  In this case, the kernel will require
43	  external support to redirect the hardware exception vectors to
44	  the writable versions located at DRAM_BASE.
45