xref: /openbmc/linux/arch/arm/Kconfig-nommu (revision 22246614)
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 PROCESSOR_ID
29	hex 'Hard wire the processor ID'
30	default 0x00007700
31	depends on !CPU_CP15
32	help
33	  If processor has no CP15 register, this processor ID is
34	  used instead of the auto-probing which utilizes the register.
35
36config REMAP_VECTORS_TO_RAM
37	bool 'Install vectors to the begining of RAM' if DRAM_BASE
38	depends on DRAM_BASE
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