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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:03 EST.

1			   =======================================
2			   FUJITSU FR-V LINUX KERNEL CONFIGURATION
3			   =======================================
4	
5	=====================
6	CONFIGURATION OPTIONS
7	=====================
8	
9	The most important setting is in the "MMU support options" tab (the first
10	presented in the configuration tools available):
11	
12	 (*) "Kernel Type"
13	
14	     This options allows selection of normal, MMU-requiring linux, and uClinux
15	     (which doesn't require an MMU and doesn't have inter-process protection).
16	
17	There are a number of settings in the "Processor type and features" section of
18	the kernel configuration that need to be considered.
19	
20	 (*) "CPU"
21	
22	     The register and instruction sets at the core of the processor. This can
23	     only be set to "FR40x/45x/55x" at the moment - but this permits usage of
24	     the kernel with MB93091 CB10, CB11, CB30, CB41, CB60, CB70 and CB451
25	     CPU boards, and with the MB93093 PDK board.
26	
27	 (*) "System"
28	
29	     This option allows a choice of basic system. This governs the peripherals
30	     that are expected to be available.
31	
32	 (*) "Motherboard"
33	
34	     This specifies the type of motherboard being used, and the peripherals
35	     upon it. Currently only "MB93090-MB00" can be set here.
36	
37	 (*) "Default cache-write mode"
38	
39	     This controls the initial data cache write management mode. By default
40	     Write-Through is selected, but Write-Back (Copy-Back) can also be
41	     selected. This can be changed dynamically once the kernel is running (see
42	     features.txt).
43	
44	There are some architecture specific configuration options in the "General
45	Setup" section of the kernel configuration too:
46	
47	 (*) "Reserve memory uncached for (PCI) DMA"
48	
49	     This requests that a uClinux kernel set aside some memory in an uncached
50	     window for the use as consistent DMA memory (mainly for PCI). At least a
51	     megabyte will be allocated in this way, possibly more. Any memory so
52	     reserved will not be available for normal allocations.
53	
54	 (*) "Kernel support for ELF-FDPIC binaries"
55	
56	     This enables the binary-format driver for the new FDPIC ELF binaries that
57	     this platform normally uses. These binaries are totally relocatable -
58	     their separate sections can relocated independently, allowing them to be
59	     shared on uClinux where possible. This should normally be enabled.
60	
61	 (*) "Kernel image protection"
62	
63	     This makes the protection register governing access to the core kernel
64	     image prohibit access by userspace programs. This option is available on
65	     uClinux only.
66	
67	There are also a number of settings in the "Kernel Hacking" section of the
68	kernel configuration especially for debugging a kernel on this
69	architecture. See the "gdbstub.txt" file for information about those.
70	
71	
72	======================
73	DEFAULT CONFIGURATIONS
74	======================
75	
76	The kernel sources include a number of example default configurations:
77	
78	 (*) defconfig-mb93091
79	
80	     Default configuration for the MB93091-VDK with both CPU board and
81	     MB93090-MB00 motherboard running uClinux.
82	
83	
84	 (*) defconfig-mb93091-fb
85	
86	     Default configuration for the MB93091-VDK with CPU board,
87	     MB93090-MB00 motherboard, and DAV board running uClinux.
88	     Includes framebuffer driver.
89	
90	
91	 (*) defconfig-mb93093
92	
93	     Default configuration for the MB93093-PDK board running uClinux.
94	
95	
96	 (*) defconfig-cb70-standalone
97	
98	     Default configuration for the MB93091-VDK with only CB70 CPU board
99	     running uClinux. This will use the CB70's DM9000 for network access.
100	
101	
102	 (*) defconfig-mmu
103	
104	     Default configuration for the MB93091-VDK with both CB451 CPU board and
105	     MB93090-MB00 motherboard running MMU linux.
106	
107	 (*) defconfig-mmu-audio
108	
109	     Default configuration for the MB93091-VDK with CB451 CPU board, DAV
110	     board, and MB93090-MB00 motherboard running MMU linux. Includes
111	     audio driver.
112	
113	 (*) defconfig-mmu-fb
114	
115	     Default configuration for the MB93091-VDK with CB451 CPU board, DAV
116	     board, and MB93090-MB00 motherboard running MMU linux. Includes
117	     framebuffer driver.
118	
119	 (*) defconfig-mmu-standalone
120	
121	     Default configuration for the MB93091-VDK with only CB451 CPU board
122	     running MMU linux.
123	
124	
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