[deliverable/linux.git] / arch / sh / mm / Kconfig

menu "Processor selection"

#
# Processor families
#
config CPU_SH2
	bool
	select SH_WRITETHROUGH

config CPU_SH3
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB

config CPU_SH4
	bool
	select CPU_HAS_INTEVT
	select CPU_HAS_SR_RB

config CPU_SH4A
	bool
	select CPU_SH4
	select CPU_HAS_INTC2_IRQ

config CPU_SUBTYPE_ST40
	bool
	select CPU_SH4
	select CPU_HAS_INTC2_IRQ

#
# Processor subtypes
#

comment "SH-2 Processor Support"

config CPU_SUBTYPE_SH7604
	bool "Support SH7604 processor"
	select CPU_SH2

comment "SH-3 Processor Support"

config CPU_SUBTYPE_SH7300
	bool "Support SH7300 processor"
	select CPU_SH3

config CPU_SUBTYPE_SH7705
	bool "Support SH7705 processor"
	select CPU_SH3
	select CPU_HAS_PINT_IRQ

config CPU_SUBTYPE_SH7707
	bool "Support SH7707 processor"
	select CPU_SH3
	select CPU_HAS_PINT_IRQ
	help
	  Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.

config CPU_SUBTYPE_SH7708
	bool "Support SH7708 processor"
	select CPU_SH3
	help
	  Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
	  if you have a 100 Mhz SH-3 HD6417708R CPU.

config CPU_SUBTYPE_SH7709
	bool "Support SH7709 processor"
	select CPU_SH3
	select CPU_HAS_PINT_IRQ
	help
	  Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.

comment "SH-4 Processor Support"

config CPU_SUBTYPE_SH7750
	bool "Support SH7750 processor"
	select CPU_SH4
	help
	  Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.

config CPU_SUBTYPE_SH7091
	bool "Support SH7091 processor"
	select CPU_SH4
	select CPU_SUBTYPE_SH7750
	help
	  Select SH7091 if you have an SH-4 based Sega device (such as
	  the Dreamcast, Naomi, and Naomi 2).

config CPU_SUBTYPE_SH7750R
	bool "Support SH7750R processor"
	select CPU_SH4
	select CPU_SUBTYPE_SH7750

config CPU_SUBTYPE_SH7750S
	bool "Support SH7750S processor"
	select CPU_SH4
	select CPU_SUBTYPE_SH7750

config CPU_SUBTYPE_SH7751
	bool "Support SH7751 processor"
	select CPU_SH4
	help
	  Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
	  or if you have a HD6417751R CPU.

config CPU_SUBTYPE_SH7751R
	bool "Support SH7751R processor"
	select CPU_SH4
	select CPU_SUBTYPE_SH7751

config CPU_SUBTYPE_SH7760
	bool "Support SH7760 processor"
	select CPU_SH4
	select CPU_HAS_INTC2_IRQ

config CPU_SUBTYPE_SH4_202
	bool "Support SH4-202 processor"
	select CPU_SH4

comment "ST40 Processor Support"

config CPU_SUBTYPE_ST40STB1
	bool "Support ST40STB1/ST40RA processors"
	select CPU_SUBTYPE_ST40
	help
	  Select ST40STB1 if you have a ST40RA CPU.
	  This was previously called the ST40STB1, hence the option name.

config CPU_SUBTYPE_ST40GX1
	bool "Support ST40GX1 processor"
	select CPU_SUBTYPE_ST40
	help
	  Select ST40GX1 if you have a ST40GX1 CPU.

comment "SH-4A Processor Support"

config CPU_SUBTYPE_SH73180
	bool "Support SH73180 processor"
	select CPU_SH4A

config CPU_SUBTYPE_SH7770
	bool "Support SH7770 processor"
	select CPU_SH4A

config CPU_SUBTYPE_SH7780
	bool "Support SH7780 processor"
	select CPU_SH4A

endmenu

menu "Memory management options"

config MMU
        bool "Support for memory management hardware"
	depends on !CPU_SH2
	default y
	help
	  Some SH processors (such as SH-2/SH-2A) lack an MMU. In order to
	  boot on these systems, this option must not be set.

	  On other systems (such as the SH-3 and 4) where an MMU exists,
	  turning this off will boot the kernel on these machines with the
	  MMU implicitly switched off.

config 32BIT
	bool "Support 32-bit physical addressing through PMB"
	depends on CPU_SH4A
	default y
	help
	  If you say Y here, physical addressing will be extended to
	  32-bits through the SH-4A PMB. If this is not set, legacy
	  29-bit physical addressing will be used.

choice
	prompt "HugeTLB page size"
	depends on HUGETLB_PAGE && CPU_SH4 && MMU
	default HUGETLB_PAGE_SIZE_64K

config HUGETLB_PAGE_SIZE_64K
	bool "64K"

config HUGETLB_PAGE_SIZE_1MB
	bool "1MB"

endchoice

source "mm/Kconfig"

endmenu

menu "Cache configuration"

config SH7705_CACHE_32KB
	bool "Enable 32KB cache size for SH7705"
	depends on CPU_SUBTYPE_SH7705
	default y

config SH_DIRECT_MAPPED
	bool "Use direct-mapped caching"
	default n
	help
	  Selecting this option will configure the caches to be direct-mapped,
	  even if the cache supports a 2 or 4-way mode. This is useful primarily
	  for debugging on platforms with 2 and 4-way caches (SH7750R/SH7751R,
	  SH4-202, SH4-501, etc.)

	  Turn this option off for platforms that do not have a direct-mapped
	  cache, and you have no need to run the caches in such a configuration.

config SH_WRITETHROUGH
	bool "Use write-through caching"
	default y if CPU_SH2
	help
	  Selecting this option will configure the caches in write-through
	  mode, as opposed to the default write-back configuration.

	  Since there's sill some aliasing issues on SH-4, this option will
	  unfortunately still require the majority of flushing functions to
	  be implemented to deal with aliasing.

	  If unsure, say N.

config SH_OCRAM
	bool "Operand Cache RAM (OCRAM) support"
	help
	  Selecting this option will automatically tear down the number of
	  sets in the dcache by half, which in turn exposes a memory range.

	  The addresses for the OC RAM base will vary according to the
	  processor version. Consult vendor documentation for specifics.

	  If unsure, say N.

endmenu
Commit	Line	Data
cad82448 PM	1	menu "Processor selection"
	2
	3	#
	4	# Processor families
	5	#
	6	config CPU_SH2
	7	bool
	8	select SH_WRITETHROUGH
	9
	10	config CPU_SH3
	11	bool
	12	select CPU_HAS_INTEVT
	13	select CPU_HAS_SR_RB
	14
	15	config CPU_SH4
	16	bool
	17	select CPU_HAS_INTEVT
	18	select CPU_HAS_SR_RB
	19
	20	config CPU_SH4A
	21	bool
	22	select CPU_SH4
	23	select CPU_HAS_INTC2_IRQ
	24
	25	config CPU_SUBTYPE_ST40
	26	bool
	27	select CPU_SH4
	28	select CPU_HAS_INTC2_IRQ
	29
	30	#
	31	# Processor subtypes
	32	#
	33
	34	comment "SH-2 Processor Support"
	35
	36	config CPU_SUBTYPE_SH7604
	37	bool "Support SH7604 processor"
	38	select CPU_SH2
	39
	40	comment "SH-3 Processor Support"
	41
	42	config CPU_SUBTYPE_SH7300
	43	bool "Support SH7300 processor"
	44	select CPU_SH3
	45
	46	config CPU_SUBTYPE_SH7705
	47	bool "Support SH7705 processor"
	48	select CPU_SH3
	49	select CPU_HAS_PINT_IRQ
	50
	51	config CPU_SUBTYPE_SH7707
	52	bool "Support SH7707 processor"
	53	select CPU_SH3
	54	select CPU_HAS_PINT_IRQ
	55	help
	56	Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
	57
	58	config CPU_SUBTYPE_SH7708
	59	bool "Support SH7708 processor"
	60	select CPU_SH3
	61	help
	62	Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
	63	if you have a 100 Mhz SH-3 HD6417708R CPU.
	64
65	config CPU_SUBTYPE_SH7709
66	bool "Support SH7709 processor"
67	select CPU_SH3
68	select CPU_HAS_PINT_IRQ
69	help
70	Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
71
72	comment "SH-4 Processor Support"
73
74	config CPU_SUBTYPE_SH7750
75	bool "Support SH7750 processor"
76	select CPU_SH4
77	help
78	Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
79
80	config CPU_SUBTYPE_SH7091
81	bool "Support SH7091 processor"
82	select CPU_SH4
83	select CPU_SUBTYPE_SH7750
84	help
85	Select SH7091 if you have an SH-4 based Sega device (such as
86	the Dreamcast, Naomi, and Naomi 2).
87
88	config CPU_SUBTYPE_SH7750R
89	bool "Support SH7750R processor"
90	select CPU_SH4
91	select CPU_SUBTYPE_SH7750
92
93	config CPU_SUBTYPE_SH7750S
94	bool "Support SH7750S processor"
95	select CPU_SH4
96	select CPU_SUBTYPE_SH7750
97
98	config CPU_SUBTYPE_SH7751
99	bool "Support SH7751 processor"
100	select CPU_SH4
101	help
102	Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
103	or if you have a HD6417751R CPU.
104
105	config CPU_SUBTYPE_SH7751R
106	bool "Support SH7751R processor"
107	select CPU_SH4
108	select CPU_SUBTYPE_SH7751
109
110	config CPU_SUBTYPE_SH7760
111	bool "Support SH7760 processor"
112	select CPU_SH4
113	select CPU_HAS_INTC2_IRQ
114
115	config CPU_SUBTYPE_SH4_202
116	bool "Support SH4-202 processor"
117	select CPU_SH4
118
119	comment "ST40 Processor Support"
120
121	config CPU_SUBTYPE_ST40STB1
122	bool "Support ST40STB1/ST40RA processors"
123	select CPU_SUBTYPE_ST40
124	help
125	Select ST40STB1 if you have a ST40RA CPU.
126	This was previously called the ST40STB1, hence the option name.
127
128	config CPU_SUBTYPE_ST40GX1
129	bool "Support ST40GX1 processor"
130	select CPU_SUBTYPE_ST40
131	help
132	Select ST40GX1 if you have a ST40GX1 CPU.
133
134	comment "SH-4A Processor Support"
135
136	config CPU_SUBTYPE_SH73180
137	bool "Support SH73180 processor"
138	select CPU_SH4A
139
140	config CPU_SUBTYPE_SH7770
141	bool "Support SH7770 processor"
142	select CPU_SH4A
143
144	config CPU_SUBTYPE_SH7780
145	bool "Support SH7780 processor"
146	select CPU_SH4A
147
148	endmenu
149
150	menu "Memory management options"
151
152	config MMU
153	bool "Support for memory management hardware"
154	depends on !CPU_SH2
155	default y
156	help
157	Some SH processors (such as SH-2/SH-2A) lack an MMU. In order to
158	boot on these systems, this option must not be set.
159
160	On other systems (such as the SH-3 and 4) where an MMU exists,
161	turning this off will boot the kernel on these machines with the
162	MMU implicitly switched off.
163
164	config 32BIT
165	bool "Support 32-bit physical addressing through PMB"
166	depends on CPU_SH4A
167	default y
168	help
169	If you say Y here, physical addressing will be extended to
170	32-bits through the SH-4A PMB. If this is not set, legacy
171	29-bit physical addressing will be used.
172
173	choice
174	prompt "HugeTLB page size"
175	depends on HUGETLB_PAGE && CPU_SH4 && MMU
176	default HUGETLB_PAGE_SIZE_64K
177
178	config HUGETLB_PAGE_SIZE_64K
179	bool "64K"
180
181	config HUGETLB_PAGE_SIZE_1MB
182	bool "1MB"
183
184	endchoice
185
186	source "mm/Kconfig"
187
188	endmenu
189
190	menu "Cache configuration"
191
192	config SH7705_CACHE_32KB
193	bool "Enable 32KB cache size for SH7705"
194	depends on CPU_SUBTYPE_SH7705
195	default y
196
197	config SH_DIRECT_MAPPED
198	bool "Use direct-mapped caching"
199	default n
200	help
201	Selecting this option will configure the caches to be direct-mapped,
202	even if the cache supports a 2 or 4-way mode. This is useful primarily
203	for debugging on platforms with 2 and 4-way caches (SH7750R/SH7751R,
204	SH4-202, SH4-501, etc.)
205
206	Turn this option off for platforms that do not have a direct-mapped
207	cache, and you have no need to run the caches in such a configuration.
208
209	config SH_WRITETHROUGH
210	bool "Use write-through caching"
211	default y if CPU_SH2
212	help
213	Selecting this option will configure the caches in write-through
214	mode, as opposed to the default write-back configuration.
215
216	Since there's sill some aliasing issues on SH-4, this option will
217	unfortunately still require the majority of flushing functions to
218	be implemented to deal with aliasing.
219
220	If unsure, say N.
221
222	config SH_OCRAM
223	bool "Operand Cache RAM (OCRAM) support"
224	help
225	Selecting this option will automatically tear down the number of
226	sets in the dcache by half, which in turn exposes a memory range.
227
228	The addresses for the OC RAM base will vary according to the
229	processor version. Consult vendor documentation for specifics.
230
231	If unsure, say N.
232
233	endmenu