blob: 50f43942c1aa8f5091b16c8a11669505f0aed1a8 [file] [log] [blame]
Tony Lindgren4a54db62010-07-05 16:31:47 +03001if ARCH_OMAP2PLUS
2
3menu "TI OMAP2/3/4 Specific Features"
4
Tony Lindgren8d9166b2010-07-05 16:31:48 +03005config ARCH_OMAP2PLUS_TYPICAL
6 bool "Typical OMAP configuration"
7 default y
8 select AEABI
9 select REGULATOR
Tony Lindgren8d9166b2010-07-05 16:31:48 +030010 select PM_RUNTIME
11 select VFP
12 select NEON if ARCH_OMAP3 || ARCH_OMAP4
Govindraj.R12a75da2010-09-27 20:20:57 +053013 select SERIAL_OMAP
14 select SERIAL_OMAP_CONSOLE
Tony Lindgren8d9166b2010-07-05 16:31:48 +030015 select I2C
16 select I2C_OMAP
Tony Lindgren8d9166b2010-07-05 16:31:48 +030017 select MENELAUS if ARCH_OMAP2
18 select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4
19 select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4
20 help
21 Compile a kernel suitable for booting most boards
22
Tony Lindgren68ac8f72010-07-05 16:31:47 +030023config ARCH_OMAP2
24 bool "TI OMAP2"
25 depends on ARCH_OMAP2PLUS
Tony Lindgrenffb63e32010-07-05 16:31:47 +030026 default y
Tony Lindgren68ac8f72010-07-05 16:31:47 +030027 select CPU_V6
Marc Zyngier6b2f55d2011-09-06 10:23:45 +010028 select MULTI_IRQ_HANDLER
Tony Lindgren68ac8f72010-07-05 16:31:47 +030029
30config ARCH_OMAP3
31 bool "TI OMAP3"
32 depends on ARCH_OMAP2PLUS
Tony Lindgrenffb63e32010-07-05 16:31:47 +030033 default y
Tony Lindgren68ac8f72010-07-05 16:31:47 +030034 select CPU_V7
35 select USB_ARCH_HAS_EHCI
Santosh Shilimkar455d4d22010-09-15 22:40:19 +053036 select ARM_L1_CACHE_SHIFT_6 if !ARCH_OMAP4
Nishanth Menonfd1478c2010-12-09 09:13:46 -060037 select ARCH_HAS_OPP
38 select PM_OPP if PM
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +020039 select ARM_CPU_SUSPEND if PM
Marc Zyngier08d33b22011-09-06 13:27:10 +010040 select MULTI_IRQ_HANDLER
Tony Lindgren68ac8f72010-07-05 16:31:47 +030041
42config ARCH_OMAP4
43 bool "TI OMAP4"
Tony Lindgrenffb63e32010-07-05 16:31:47 +030044 default y
Tony Lindgren68ac8f72010-07-05 16:31:47 +030045 depends on ARCH_OMAP2PLUS
46 select CPU_V7
47 select ARM_GIC
Santosh Shilimkar07787a82011-02-22 09:57:47 +010048 select LOCAL_TIMERS if SMP
Santosh Shilimkar455d4d22010-09-15 22:40:19 +053049 select PL310_ERRATA_588369
Santosh Shilimkar4bdb1572011-02-22 10:00:44 +010050 select PL310_ERRATA_727915
Santosh Shilimkar455d4d22010-09-15 22:40:19 +053051 select ARM_ERRATA_720789
Nishanth Menonf5a64222010-12-09 09:13:47 -060052 select ARCH_HAS_OPP
53 select PM_OPP if PM
Anand Gadiyar56976b62010-11-21 23:23:42 +053054 select USB_ARCH_HAS_EHCI
Arnd Bergmann15e0d9e2011-10-01 21:09:39 +020055 select ARM_CPU_SUSPEND if PM
Tony Lindgren68ac8f72010-07-05 16:31:47 +030056
Tony Lindgren1dbae812005-11-10 14:26:51 +000057comment "OMAP Core Type"
58 depends on ARCH_OMAP2
59
Tony Lindgren59b479e2011-01-27 16:39:40 -080060config SOC_OMAP2420
Tony Lindgren1dbae812005-11-10 14:26:51 +000061 bool "OMAP2420 support"
Tony Lindgren088ef952010-02-12 12:26:47 -080062 depends on ARCH_OMAP2
Tony Lindgrenffb63e32010-07-05 16:31:47 +030063 default y
Timo Teras77900a22006-06-26 16:16:12 -070064 select OMAP_DM_TIMER
Tony Lindgrenc40fae952006-12-07 13:58:10 -080065 select ARCH_OMAP_OTG
Tony Lindgren1dbae812005-11-10 14:26:51 +000066
Tony Lindgren59b479e2011-01-27 16:39:40 -080067config SOC_OMAP2430
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -080068 bool "OMAP2430 support"
Tony Lindgren088ef952010-02-12 12:26:47 -080069 depends on ARCH_OMAP2
Tony Lindgrenffb63e32010-07-05 16:31:47 +030070 default y
Viral Mehta4ab866d2010-05-10 14:29:15 -070071 select ARCH_OMAP_OTG
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -080072
Tony Lindgren59b479e2011-01-27 16:39:40 -080073config SOC_OMAP3430
Syed Mohammed, Khasimcc26b3b2008-10-09 17:51:41 +030074 bool "OMAP3430 support"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -080075 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +030076 default y
Syed Mohammed, Khasimcc26b3b2008-10-09 17:51:41 +030077 select ARCH_OMAP_OTG
78
Hemant Pedanekar4bd7be22011-02-16 08:31:39 -080079config SOC_OMAPTI816X
80 bool "TI816X support"
81 depends on ARCH_OMAP3
82 default y
83
Tony Lindgrenfc440462010-07-05 16:31:36 +030084config OMAP_PACKAGE_ZAF
85 bool
86
87config OMAP_PACKAGE_ZAC
88 bool
89
Tony Lindgrenddaa9122009-12-11 16:16:32 -080090config OMAP_PACKAGE_CBC
91 bool
92
93config OMAP_PACKAGE_CBB
94 bool
95
96config OMAP_PACKAGE_CUS
97 bool
98
Tony Lindgren662c8b52009-12-11 16:16:33 -080099config OMAP_PACKAGE_CBP
100 bool
101
Benoit Coussona041a522010-08-10 17:27:48 +0200102config OMAP_PACKAGE_CBL
103 bool
104
Benoit Coussona7722d82010-09-24 16:56:59 +0200105config OMAP_PACKAGE_CBS
106 bool
107
Tony Lindgren1dbae812005-11-10 14:26:51 +0000108comment "OMAP Board Type"
Tony Lindgren140455f2010-02-12 12:26:48 -0800109 depends on ARCH_OMAP2PLUS
Tony Lindgren1dbae812005-11-10 14:26:51 +0000110
111config MACH_OMAP_GENERIC
Benoit Cousson8d616492011-09-20 21:24:47 +0200112 bool "Generic OMAP2+ board"
113 depends on ARCH_OMAP2PLUS
114 select USE_OF
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300115 default y
Benoit Cousson8d616492011-09-20 21:24:47 +0200116 help
117 Support for generic TI OMAP2+ boards using Flattened Device Tree.
118 More information at Documentation/devicetree
Tony Lindgren1dbae812005-11-10 14:26:51 +0000119
Kalle Valo1b52d5d2009-08-28 10:51:37 -0700120config MACH_OMAP2_TUSB6010
121 bool
Tony Lindgren59b479e2011-01-27 16:39:40 -0800122 depends on ARCH_OMAP2 && SOC_OMAP2420
Kalle Valo1b52d5d2009-08-28 10:51:37 -0700123 default y if MACH_NOKIA_N8X0
124
Tony Lindgren1dbae812005-11-10 14:26:51 +0000125config MACH_OMAP_H4
126 bool "OMAP 2420 H4 board"
Tony Lindgren59b479e2011-01-27 16:39:40 -0800127 depends on SOC_OMAP2420
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300128 default y
Tony Lindgren23275d42010-07-05 16:31:37 +0300129 select OMAP_PACKAGE_ZAF
David Brownellf6049312006-12-06 17:14:03 -0800130 select OMAP_DEBUG_DEVICES
Tony Lindgren1dbae812005-11-10 14:26:51 +0000131
Tony Lindgren9b6553c2006-04-02 17:46:30 +0100132config MACH_OMAP_APOLLON
133 bool "OMAP 2420 Apollon board"
Tony Lindgren59b479e2011-01-27 16:39:40 -0800134 depends on SOC_OMAP2420
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300135 default y
Tony Lindgrenb52b14e2010-07-05 16:31:37 +0300136 select OMAP_PACKAGE_ZAC
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -0800137
138config MACH_OMAP_2430SDP
139 bool "OMAP 2430 SDP board"
Tony Lindgren59b479e2011-01-27 16:39:40 -0800140 depends on SOC_OMAP2430
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300141 default y
Tony Lindgren369ed782010-07-05 16:31:38 +0300142 select OMAP_PACKAGE_ZAC
Syed Mohammed Khasim72d0f1c2006-12-06 17:14:05 -0800143
Syed Mohammed, Khasim2885f002008-10-09 17:51:42 +0300144config MACH_OMAP3_BEAGLE
145 bool "OMAP3 BEAGLE board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800146 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300147 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800148 select OMAP_PACKAGE_CBB
Syed Mohammed, Khasim2885f002008-10-09 17:51:42 +0300149
Thomas Weber476544c2010-02-17 14:09:28 -0800150config MACH_DEVKIT8000
Thomas Weber51824c52010-03-24 12:52:11 +0000151 bool "DEVKIT8000 board"
152 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300153 default y
Thomas Weber51824c52010-03-24 12:52:11 +0000154 select OMAP_PACKAGE_CUS
Thomas Weber476544c2010-02-17 14:09:28 -0800155
Nishant Kamat49265652008-10-10 11:28:23 +0300156config MACH_OMAP_LDP
157 bool "OMAP3 LDP board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800158 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300159 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800160 select OMAP_PACKAGE_CBB
Nishant Kamat49265652008-10-10 11:28:23 +0300161
Tim Nordelld40f3f12010-09-27 16:05:47 +0000162config MACH_OMAP3530_LV_SOM
163 bool "OMAP3 Logic 3530 LV SOM board"
164 depends on ARCH_OMAP3
165 select OMAP_PACKAGE_CBB
166 default y
167 help
168 Support for the LogicPD OMAP3530 SOM Development kit
169 for full description please see the products webpage at
170 http://www.logicpd.com/products/development-kits/texas-instruments-zoom%E2%84%A2-omap35x-development-kit
171
172config MACH_OMAP3_TORPEDO
173 bool "OMAP3 Logic 35x Torpedo board"
174 depends on ARCH_OMAP3
175 select OMAP_PACKAGE_CBB
176 default y
177 help
178 Support for the LogicPD OMAP35x Torpedo Development kit
179 for full description please see the products webpage at
180 http://www.logicpd.com/products/development-kits/zoom-omap35x-torpedo-development-kit
181
Steve Sakomaneba26452008-10-09 17:51:43 +0300182config MACH_OVERO
183 bool "Gumstix Overo board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800184 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300185 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800186 select OMAP_PACKAGE_CBB
Grazvydas Ignotasda177242008-12-10 17:36:54 -0800187
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700188config MACH_OMAP3EVM
189 bool "OMAP 3530 EVM board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800190 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300191 default y
Vaibhav Hiremath342aa2c2010-01-08 10:29:08 -0800192 select OMAP_PACKAGE_CBB
Syed Mohammed Khasim53c5ec32009-05-28 14:13:28 -0700193
Ranjith Lohithakshanc6253272009-11-18 18:41:09 -0800194config MACH_OMAP3517EVM
195 bool "OMAP3517/ AM3517 EVM board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800196 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300197 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800198 select OMAP_PACKAGE_CBB
Ranjith Lohithakshanc6253272009-11-18 18:41:09 -0800199
Srinath1cb125c2010-11-16 14:26:58 -0800200config MACH_CRANEBOARD
201 bool "AM3517/05 CRANE board"
202 depends on ARCH_OMAP3
203 select OMAP_PACKAGE_CBB
204
Grazvydas Ignotasda177242008-12-10 17:36:54 -0800205config MACH_OMAP3_PANDORA
206 bool "OMAP3 Pandora"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800207 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300208 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800209 select OMAP_PACKAGE_CBB
Ohad Ben-Cohen7c501522010-11-24 10:04:50 +0000210 select REGULATOR_FIXED_VOLTAGE
Syed Mohammed Khasim6fdc29e2009-03-23 18:38:16 -0700211
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800212config MACH_OMAP3_TOUCHBOOK
213 bool "OMAP3 Touch Book"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800214 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300215 default y
Gregoire Gentil7a079ca2009-12-11 16:16:34 -0800216 select BACKLIGHT_CLASS_DEVICE
217
Syed Mohammed Khasim6fdc29e2009-03-23 18:38:16 -0700218config MACH_OMAP_3430SDP
219 bool "OMAP 3430 SDP board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800220 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300221 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800222 select OMAP_PACKAGE_CBB
Lauri Leukkunenffe7f952009-03-23 18:38:17 -0700223
Tony Lindgrend2fbf342009-10-22 14:48:13 -0700224config MACH_NOKIA_N800
225 bool
226
227config MACH_NOKIA_N810
228 bool
229
230config MACH_NOKIA_N810_WIMAX
231 bool
232
Kalle Valo63138812009-08-28 10:51:38 -0700233config MACH_NOKIA_N8X0
234 bool "Nokia N800/N810"
Tony Lindgren59b479e2011-01-27 16:39:40 -0800235 depends on SOC_OMAP2420
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300236 default y
Tony Lindgrenbd8f0fc2010-07-05 16:31:38 +0300237 select OMAP_PACKAGE_ZAC
Tony Lindgrend2fbf342009-10-22 14:48:13 -0700238 select MACH_NOKIA_N800
239 select MACH_NOKIA_N810
240 select MACH_NOKIA_N810_WIMAX
Kalle Valo63138812009-08-28 10:51:38 -0700241
Aaro Koskinen2d200662010-12-17 15:13:47 -0800242config MACH_NOKIA_RM680
243 bool "Nokia RM-680 board"
244 depends on ARCH_OMAP3
245 default y
246 select OMAP_PACKAGE_CBB
247
Lauri Leukkunenffe7f952009-03-23 18:38:17 -0700248config MACH_NOKIA_RX51
249 bool "Nokia RX-51 board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800250 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300251 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800252 select OMAP_PACKAGE_CBB
Vikram Pandita577145f2009-05-28 14:04:04 -0700253
254config MACH_OMAP_ZOOM2
255 bool "OMAP3 Zoom2 board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800256 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300257 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800258 select OMAP_PACKAGE_CBB
Govindraj.R12a75da2010-09-27 20:20:57 +0530259 select SERIAL_8250
260 select SERIAL_CORE_CONSOLE
261 select SERIAL_8250_CONSOLE
Ohad Ben-Cohen7c501522010-11-24 10:04:50 +0000262 select REGULATOR_FIXED_VOLTAGE
Santosh Shilimkar46ba0ab2009-05-28 14:16:05 -0700263
vikram pandita5f35fbe2009-11-22 10:11:32 -0800264config MACH_OMAP_ZOOM3
265 bool "OMAP3630 Zoom3 board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800266 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300267 default y
Tony Lindgren662c8b52009-12-11 16:16:33 -0800268 select OMAP_PACKAGE_CBP
Govindraj.R12a75da2010-09-27 20:20:57 +0530269 select SERIAL_8250
270 select SERIAL_CORE_CONSOLE
271 select SERIAL_8250_CONSOLE
Ohad Ben-Cohen7c501522010-11-24 10:04:50 +0000272 select REGULATOR_FIXED_VOLTAGE
vikram pandita5f35fbe2009-11-22 10:11:32 -0800273
Mike Rapoport2886d122009-11-18 18:41:07 -0800274config MACH_CM_T35
Igor Grinbergc3146972011-07-05 03:38:23 -0700275 bool "CompuLab CM-T35/CM-T3730 modules"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800276 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300277 default y
Igor Grinbergc3146972011-07-05 03:38:23 -0700278 select MACH_CM_T3730
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800279 select OMAP_PACKAGE_CUS
Mike Rapoport2886d122009-11-18 18:41:07 -0800280
Igor Grinbergd04b6202010-09-21 16:03:09 +0000281config MACH_CM_T3517
282 bool "CompuLab CM-T3517 module"
283 depends on ARCH_OMAP3
284 default y
285 select OMAP_PACKAGE_CBB
Igor Grinbergd04b6202010-09-21 16:03:09 +0000286
Igor Grinbergc3146972011-07-05 03:38:23 -0700287config MACH_CM_T3730
288 bool
289
Enric Balletbo i Serra58e11162009-11-18 18:41:07 -0800290config MACH_IGEP0020
Enric Balletbo i Serra28e0f132010-02-17 14:09:26 -0800291 bool "IGEP v2 board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800292 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300293 default y
Tony Lindgrenca5742b2009-12-11 16:16:32 -0800294 select OMAP_PACKAGE_CBB
Enric Balletbo i Serra58e11162009-11-18 18:41:07 -0800295
Enric Balletbo i Serrae844b1d2010-10-08 10:22:11 -0700296config MACH_IGEP0030
297 bool "IGEP OMAP3 module"
298 depends on ARCH_OMAP3
299 default y
300 select OMAP_PACKAGE_CBB
Mike Rapoport7be13ad2011-05-12 21:31:04 +0000301 select MACH_IGEP0020
Enric Balletbo i Serrae844b1d2010-10-08 10:22:11 -0700302
Jason9cbc3492010-05-17 14:39:09 +0800303config MACH_SBC3530
304 bool "OMAP3 SBC STALKER board"
305 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300306 default y
Jason9cbc3492010-05-17 14:39:09 +0800307 select OMAP_PACKAGE_CUS
Jason9cbc3492010-05-17 14:39:09 +0800308
vikram pandita34c9ac22009-11-18 18:41:08 -0800309config MACH_OMAP_3630SDP
310 bool "OMAP3630 SDP board"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800311 depends on ARCH_OMAP3
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300312 default y
Tony Lindgren662c8b52009-12-11 16:16:33 -0800313 select OMAP_PACKAGE_CBP
vikram pandita34c9ac22009-11-18 18:41:08 -0800314
Hemant Pedanekar2c87fb22011-02-15 23:06:08 +0530315config MACH_TI8168EVM
316 bool "TI8168 Evaluation Module"
317 depends on SOC_OMAPTI816X
318 default y
319
Santosh Shilimkar46ba0ab2009-05-28 14:16:05 -0700320config MACH_OMAP_4430SDP
321 bool "OMAP 4430 SDP board"
Tony Lindgrenffb63e32010-07-05 16:31:47 +0300322 default y
Santosh Shilimkar46ba0ab2009-05-28 14:16:05 -0700323 depends on ARCH_OMAP4
Benoit Coussonfb6bf632010-08-10 17:43:15 +0200324 select OMAP_PACKAGE_CBL
Benoit Cousson6fea7b02010-09-27 10:50:33 +0200325 select OMAP_PACKAGE_CBS
Panduranga Mallireddycdc43482011-02-15 03:40:33 -0500326 select REGULATOR_FIXED_VOLTAGE
Alexander Shishkin183bd502009-12-01 14:03:31 +0100327
David Andersb075f582010-08-02 13:18:05 +0300328config MACH_OMAP4_PANDA
329 bool "OMAP4 Panda Board"
330 default y
331 depends on ARCH_OMAP4
sricharanfc63de822010-11-08 19:26:11 +0530332 select OMAP_PACKAGE_CBL
333 select OMAP_PACKAGE_CBS
Panduranga Mallireddycdc43482011-02-15 03:40:33 -0500334 select REGULATOR_FIXED_VOLTAGE
David Andersb075f582010-08-02 13:18:05 +0300335
Alexander Shishkin183bd502009-12-01 14:03:31 +0100336config OMAP3_EMU
337 bool "OMAP3 debugging peripherals"
338 depends on ARCH_OMAP3
Ming Leia8a65652011-11-23 14:44:50 -0800339 select ARM_AMBA
Alexander Shishkin183bd502009-12-01 14:03:31 +0100340 select OC_ETM
341 help
342 Say Y here to enable debugging hardware of omap3
343
Paul Walmsley18862cb2009-12-08 16:33:14 -0700344config OMAP3_SDRC_AC_TIMING
345 bool "Enable SDRC AC timing register changes"
Tony Lindgrena8eb7ca2010-02-12 12:26:48 -0800346 depends on ARCH_OMAP3
Paul Walmsley18862cb2009-12-08 16:33:14 -0700347 default n
348 help
349 If you know that none of your system initiators will attempt to
350 access SDRAM during CORE DVFS, select Y here. This should boost
351 SDRAM performance at lower CORE OPPs. There are relatively few
352 users who will wish to say yes at this point - almost everyone will
353 wish to say no. Selecting yes without understanding what is
354 going on could result in system crashes;
355
Santosh Shilimkar137d1052011-06-25 18:04:31 -0700356config OMAP4_ERRATA_I688
357 bool "OMAP4 errata: Async Bridge Corruption"
358 depends on ARCH_OMAP4
359 select ARCH_HAS_BARRIERS
360 help
361 If a data is stalled inside asynchronous bridge because of back
362 pressure, it may be accepted multiple times, creating pointer
363 misalignment that will corrupt next transfers on that data path
364 until next reset of the system (No recovery procedure once the
365 issue is hit, the path remains consistently broken). Async bridge
366 can be found on path between MPU to EMIF and MPU to L3 interconnect.
367 This situation can happen only when the idle is initiated by a
368 Master Request Disconnection (which is trigged by software when
369 executing WFI on CPU).
370 The work-around for this errata needs all the initiators connected
371 through async bridge must ensure that data path is properly drained
372 before issuing WFI. This condition will be met if one Strongly ordered
373 access is performed to the target right before executing the WFI.
374 In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained.
375 IO barrier ensure that there is no synchronisation loss on initiators
376 operating on both interconnect port simultaneously.
Tony Lindgren4a54db62010-07-05 16:31:47 +0300377endmenu
378
379endif