[linux.git] / arch / openrisc / Kconfig

#
# For a description of the syntax of this configuration file,
# see Documentation/kbuild/config-language.txt.
#

config OPENRISC
	def_bool y
	select OF
	select OF_EARLY_FLATTREE
	select HAVE_MEMBLOCK
	select ARCH_WANT_OPTIONAL_GPIOLIB
        select HAVE_ARCH_TRACEHOOK
	select HAVE_GENERIC_HARDIRQS
	select GENERIC_IRQ_CHIP
	select GENERIC_IRQ_PROBE
	select GENERIC_IRQ_SHOW
	select GENERIC_IOMAP

config MMU
	def_bool y

config WISHBONE_BUS_BIG_ENDIAN
	def_bool y

config SYMBOL_PREFIX
        string
        default ""

config HAVE_DMA_ATTRS
	def_bool y

config UID16
	def_bool y

config RWSEM_GENERIC_SPINLOCK
	def_bool y

config RWSEM_XCHGADD_ALGORITHM
	def_bool n

config GENERIC_HWEIGHT
	def_bool y

config GENERIC_IOMAP
	def_bool y

config NO_IOPORT
	def_bool y

config GENERIC_GPIO
	def_bool y

config GENERIC_CLOCKEVENTS
	def_bool y

config TRACE_IRQFLAGS_SUPPORT
        def_bool y

# For now, use generic checksum functions
#These can be reimplemented in assembly later if so inclined
config GENERIC_CSUM
        def_bool y

config GENERIC_FIND_NEXT_BIT
	def_bool y

source "init/Kconfig"


menu "Processor type and features"

choice
	prompt "Subarchitecture"
	default OR1K_1200

config OR1K_1200
	bool "OR1200"
	help
	  Generic OpenRISC 1200 architecture

endchoice

config OPENRISC_BUILTIN_DTB
        string "Builtin DTB"
        default ""

menu "Class II Instructions"

config OPENRISC_HAVE_INST_FF1
	bool "Have instruction l.ff1"
	default y
	help
	  Select this if your implementation has the Class II instruction l.ff1

config OPENRISC_HAVE_INST_FL1
	bool "Have instruction l.fl1"
	default y
	help
	  Select this if your implementation has the Class II instruction l.fl1

config OPENRISC_HAVE_INST_MUL
	bool "Have instruction l.mul for hardware multiply"
	default y
	help
	  Select this if your implementation has a hardware multiply instruction

config OPENRISC_HAVE_INST_DIV
	bool "Have instruction l.div for hardware divide"
	default y
	help
	  Select this if your implementation has a hardware divide instruction
endmenu


source "kernel/time/Kconfig"
source kernel/Kconfig.hz
source kernel/Kconfig.preempt
source "mm/Kconfig"

config OPENRISC_NO_SPR_SR_DSX
	bool "use SPR_SR_DSX software emulation" if OR1K_1200
	default y
	help
	  SPR_SR_DSX bit is status register bit indicating whether
	  the last exception has happened in delay slot.

	  OpenRISC architecture makes it optional to have it implemented
	  in hardware and the OR1200 does not have it.

	  Say N here if you know that your OpenRISC processor has
	  SPR_SR_DSX bit implemented. Say Y if you are unsure.

config CMDLINE
        string "Default kernel command string"
        default ""
        help
          On some architectures there is currently no way for the boot loader
          to pass arguments to the kernel. For these architectures, you should
          supply some command-line options at build time by entering them
          here.

menu "Debugging options"

config DEBUG_STACKOVERFLOW
	bool "Check for kernel stack overflow"
	default y
	help
	  Make extra checks for space avaliable on stack in some
          critical functions. This will cause kernel to run a bit slower,
	  but will catch most of kernel stack overruns and exit gracefuly.

	  Say Y if you are unsure.

config JUMP_UPON_UNHANDLED_EXCEPTION
	bool "Try to die gracefully"
	default y
	help
	  Now this puts kernel into infinite loop after first oops. Till
	  your kernel crashes this doesn't have any influence.

	  Say Y if you are unsure.

config OPENRISC_EXCEPTION_DEBUG
	bool "Print processor state at each exception"
	default n
	help
	  This option will make your kernel unusable for all but kernel
	  debugging.

	  Say N if you are unsure.

config OPENRISC_ESR_EXCEPTION_BUG_CHECK
	bool "Check for possible ESR exception bug"
	default n
	help
	  This option enables some checks that might expose some problems
          in kernel.

	  Say N if you are unsure.

endmenu

endmenu

menu "Executable file formats"

source "fs/Kconfig.binfmt"

endmenu

source "net/Kconfig"

source "drivers/Kconfig"

source "fs/Kconfig"

source "security/Kconfig"

source "crypto/Kconfig"

source "lib/Kconfig"

menu "Kernel hacking"

source "lib/Kconfig.debug"

endmenu
Commit	Line	Data
f8c4a270 JB	1	#
	2	# For a description of the syntax of this configuration file,
	3	# see Documentation/kbuild/config-language.txt.
	4	#
	5
	6	config OPENRISC
	7	def_bool y
	8	select OF
	9	select OF_EARLY_FLATTREE
	10	select HAVE_MEMBLOCK
	11	select ARCH_WANT_OPTIONAL_GPIOLIB
	12	select HAVE_ARCH_TRACEHOOK
	13	select HAVE_GENERIC_HARDIRQS
	14	select GENERIC_IRQ_CHIP
	15	select GENERIC_IRQ_PROBE
	16	select GENERIC_IRQ_SHOW
	17	select GENERIC_IOMAP
	18
	19	config MMU
	20	def_bool y
	21
	22	config WISHBONE_BUS_BIG_ENDIAN
	23	def_bool y
	24
	25	config SYMBOL_PREFIX
	26	string
	27	default ""
	28
	29	config HAVE_DMA_ATTRS
	30	def_bool y
	31
	32	config UID16
	33	def_bool y
	34
	35	config RWSEM_GENERIC_SPINLOCK
	36	def_bool y
	37
	38	config RWSEM_XCHGADD_ALGORITHM
	39	def_bool n
	40
	41	config GENERIC_HWEIGHT
	42	def_bool y
	43
	44	config GENERIC_IOMAP
	45	def_bool y
	46
	47	config NO_IOPORT
	48	def_bool y
	49
	50	config GENERIC_GPIO
	51	def_bool y
	52
	53	config GENERIC_CLOCKEVENTS
	54	def_bool y
	55
	56	config TRACE_IRQFLAGS_SUPPORT
	57	def_bool y
	58
	59	# For now, use generic checksum functions
	60	#These can be reimplemented in assembly later if so inclined
	61	config GENERIC_CSUM
	62	def_bool y
	63
	64	config GENERIC_FIND_NEXT_BIT
65	def_bool y
66
67	source "init/Kconfig"
68
69
70	menu "Processor type and features"
71
72	choice
73	prompt "Subarchitecture"
74	default OR1K_1200
75
76	config OR1K_1200
77	bool "OR1200"
78	help
79	Generic OpenRISC 1200 architecture
80
81	endchoice
82
83	config OPENRISC_BUILTIN_DTB
84	string "Builtin DTB"
85	default ""
86
87	menu "Class II Instructions"
88
89	config OPENRISC_HAVE_INST_FF1
90	bool "Have instruction l.ff1"
91	default y
92	help
93	Select this if your implementation has the Class II instruction l.ff1
94
95	config OPENRISC_HAVE_INST_FL1
96	bool "Have instruction l.fl1"
97	default y
98	help
99	Select this if your implementation has the Class II instruction l.fl1
100
101	config OPENRISC_HAVE_INST_MUL
102	bool "Have instruction l.mul for hardware multiply"
103	default y
104	help
105	Select this if your implementation has a hardware multiply instruction
106
107	config OPENRISC_HAVE_INST_DIV
108	bool "Have instruction l.div for hardware divide"
109	default y
110	help
111	Select this if your implementation has a hardware divide instruction
112	endmenu
113
114
115	source "kernel/time/Kconfig"
116	source kernel/Kconfig.hz
117	source kernel/Kconfig.preempt
118	source "mm/Kconfig"
119
120	config OPENRISC_NO_SPR_SR_DSX
121	bool "use SPR_SR_DSX software emulation" if OR1K_1200
122	default y
123	help
124	SPR_SR_DSX bit is status register bit indicating whether
125	the last exception has happened in delay slot.
126
127	OpenRISC architecture makes it optional to have it implemented
128	in hardware and the OR1200 does not have it.
129
130	Say N here if you know that your OpenRISC processor has
131	SPR_SR_DSX bit implemented. Say Y if you are unsure.
132
133	config CMDLINE
134	string "Default kernel command string"
135	default ""
136	help
137	On some architectures there is currently no way for the boot loader
138	to pass arguments to the kernel. For these architectures, you should
139	supply some command-line options at build time by entering them
140	here.
141
142	menu "Debugging options"
143
144	config DEBUG_STACKOVERFLOW
145	bool "Check for kernel stack overflow"
146	default y
147	help
148	Make extra checks for space avaliable on stack in some
149	critical functions. This will cause kernel to run a bit slower,
150	but will catch most of kernel stack overruns and exit gracefuly.
151
152	Say Y if you are unsure.
153
154	config JUMP_UPON_UNHANDLED_EXCEPTION
155	bool "Try to die gracefully"
156	default y
157	help
158	Now this puts kernel into infinite loop after first oops. Till
159	your kernel crashes this doesn't have any influence.
160
161	Say Y if you are unsure.
162
163	config OPENRISC_EXCEPTION_DEBUG
164	bool "Print processor state at each exception"
165	default n
166	help
167	This option will make your kernel unusable for all but kernel
168	debugging.
169
170	Say N if you are unsure.
171
172	config OPENRISC_ESR_EXCEPTION_BUG_CHECK
173	bool "Check for possible ESR exception bug"
174	default n
175	help
176	This option enables some checks that might expose some problems
177	in kernel.
178
179	Say N if you are unsure.
180
181	endmenu
182
183	endmenu
184
185	menu "Executable file formats"
186
187	source "fs/Kconfig.binfmt"
188
189	endmenu
190
191	source "net/Kconfig"
192
193	source "drivers/Kconfig"
194
195	source "fs/Kconfig"
196
197	source "security/Kconfig"
198
199	source "crypto/Kconfig"
200
201	source "lib/Kconfig"
202
203	menu "Kernel hacking"
204
205	source "lib/Kconfig.debug"
206
207	endmenu