14a54db61STony Lindgrenif ARCH_OMAP2PLUS 24a54db61STony Lindgren 34a54db61STony Lindgrenmenu "TI OMAP2/3/4 Specific Features" 44a54db61STony Lindgren 58d9166b5STony Lindgrenconfig ARCH_OMAP2PLUS_TYPICAL 68d9166b5STony Lindgren bool "Typical OMAP configuration" 78d9166b5STony Lindgren default y 88d9166b5STony Lindgren select AEABI 98d9166b5STony Lindgren select REGULATOR 108d9166b5STony Lindgren select PM_RUNTIME 118d9166b5STony Lindgren select VFP 1235eb4298SR Sricharan select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5 1312a75da2SGovindraj.R select SERIAL_OMAP 1412a75da2SGovindraj.R select SERIAL_OMAP_CONSOLE 158d9166b5STony Lindgren select I2C 168d9166b5STony Lindgren select I2C_OMAP 178d9166b5STony Lindgren select MENELAUS if ARCH_OMAP2 188d9166b5STony Lindgren select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4 198d9166b5STony Lindgren select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4 20a78a4cbdSSantosh Shilimkar select HIGHMEM 218d9166b5STony Lindgren help 228d9166b5STony Lindgren Compile a kernel suitable for booting most boards 238d9166b5STony Lindgren 24ecc46cfdSVaibhav Hiremathconfig SOC_HAS_OMAP2_SDRC 25ecc46cfdSVaibhav Hiremath bool "OMAP2 SDRAM Controller support" 26ecc46cfdSVaibhav Hiremath 27*fa6d79d2SSantosh Shilimkarconfig SOC_HAS_REALTIME_COUNTER 28*fa6d79d2SSantosh Shilimkar bool "Real time free running counter" 29*fa6d79d2SSantosh Shilimkar 3068ac8f7dSTony Lindgrenconfig ARCH_OMAP2 31f558b275STony Lindgren bool "TI OMAP2" 32f558b275STony Lindgren depends on ARCH_OMAP2PLUS 33f558b275STony Lindgren default y 3468ac8f7dSTony Lindgren select CPU_V6 356b2f55d7SMarc Zyngier select MULTI_IRQ_HANDLER 36ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 3768ac8f7dSTony Lindgren 3868ac8f7dSTony Lindgrenconfig ARCH_OMAP3 39f558b275STony Lindgren bool "TI OMAP3" 40f558b275STony Lindgren depends on ARCH_OMAP2PLUS 41f558b275STony Lindgren default y 4268ac8f7dSTony Lindgren select CPU_V7 43b2a5124eSTony Lindgren select USB_ARCH_HAS_EHCI if USB_SUPPORT 44fd1478cdSNishanth Menon select ARCH_HAS_OPP 45e0246e8eSKevin Hilman select PM_RUNTIME if CPU_IDLE 46fd1478cdSNishanth Menon select PM_OPP if PM 4715e0d9e3SArnd Bergmann select ARM_CPU_SUSPEND if PM 4808d33b27SMarc Zyngier select MULTI_IRQ_HANDLER 49ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 5068ac8f7dSTony Lindgren 5168ac8f7dSTony Lindgrenconfig ARCH_OMAP4 52f558b275STony Lindgren bool "TI OMAP4" 53f558b275STony Lindgren default y 54f558b275STony Lindgren depends on ARCH_OMAP2PLUS 55c957445bSDave Martin select CACHE_L2X0 5668ac8f7dSTony Lindgren select CPU_V7 5768ac8f7dSTony Lindgren select ARM_GIC 583b55658aSDave Martin select HAVE_SMP 5907787a85SSantosh Shilimkar select LOCAL_TIMERS if SMP 60455d4d2dSSantosh Shilimkar select PL310_ERRATA_588369 614bdb1577SSantosh Shilimkar select PL310_ERRATA_727915 62455d4d2dSSantosh Shilimkar select ARM_ERRATA_720789 63f5a6422dSNishanth Menon select ARCH_HAS_OPP 64e0246e8eSKevin Hilman select PM_RUNTIME if CPU_IDLE 65f5a6422dSNishanth Menon select PM_OPP if PM 66b2a5124eSTony Lindgren select USB_ARCH_HAS_EHCI if USB_SUPPORT 6715e0d9e3SArnd Bergmann select ARM_CPU_SUSPEND if PM 68c7a9b09bSArnd Bergmann select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP 6968ac8f7dSTony Lindgren 7035eb4298SR Sricharanconfig SOC_OMAP5 7135eb4298SR Sricharan bool "TI OMAP5" 7235eb4298SR Sricharan select CPU_V7 7335eb4298SR Sricharan select ARM_GIC 7435eb4298SR Sricharan select HAVE_SMP 75acb11fe8SSantosh Shilimkar select ARM_CPU_SUSPEND if PM 76*fa6d79d2SSantosh Shilimkar select SOC_HAS_REALTIME_COUNTER 7735eb4298SR Sricharan 781dbae815STony Lindgrencomment "OMAP Core Type" 79f558b275STony Lindgren depends on ARCH_OMAP2 801dbae815STony Lindgren 8159b479e0STony Lindgrenconfig SOC_OMAP2420 821dbae815STony Lindgren bool "OMAP2420 support" 83f558b275STony Lindgren depends on ARCH_OMAP2 84ffb63e34STony Lindgren default y 8577900a2fSTimo Teras select OMAP_DM_TIMER 86ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 871dbae815STony Lindgren 8859b479e0STony Lindgrenconfig SOC_OMAP2430 8972d0f1c3SSyed Mohammed Khasim bool "OMAP2430 support" 90f558b275STony Lindgren depends on ARCH_OMAP2 91ffb63e34STony Lindgren default y 92ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 9372d0f1c3SSyed Mohammed Khasim 9459b479e0STony Lindgrenconfig SOC_OMAP3430 95cc26b3b0SSyed Mohammed, Khasim bool "OMAP3430 support" 96f558b275STony Lindgren depends on ARCH_OMAP3 97ffb63e34STony Lindgren default y 98ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 99cc26b3b0SSyed Mohammed, Khasim 10033959553SKevin Hilmanconfig SOC_TI81XX 101a920360fSHemant Pedanekar bool "TI81XX support" 102f558b275STony Lindgren depends on ARCH_OMAP3 1034bd7be22SHemant Pedanekar default y 1044bd7be22SHemant Pedanekar 105bb6abcf4SKevin Hilmanconfig SOC_AM33XX 10699541195SAfzal Mohammed bool "AM33XX support" 10799541195SAfzal Mohammed default y 1081c213ba1SVaibhav Hiremath select CPU_V7 1091c213ba1SVaibhav Hiremath select ARM_CPU_SUSPEND if PM 1101c213ba1SVaibhav Hiremath select MULTI_IRQ_HANDLER 11199541195SAfzal Mohammed 112fc440461STony Lindgrenconfig OMAP_PACKAGE_ZAF 113fc440461STony Lindgren bool 114fc440461STony Lindgren 115fc440461STony Lindgrenconfig OMAP_PACKAGE_ZAC 116fc440461STony Lindgren bool 117fc440461STony Lindgren 118ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CBC 119ddaa912aSTony Lindgren bool 120ddaa912aSTony Lindgren 121ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CBB 122ddaa912aSTony Lindgren bool 123ddaa912aSTony Lindgren 124ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CUS 125ddaa912aSTony Lindgren bool 126ddaa912aSTony Lindgren 127662c8b55STony Lindgrenconfig OMAP_PACKAGE_CBP 128662c8b55STony Lindgren bool 129662c8b55STony Lindgren 130a041a52cSBenoit Coussonconfig OMAP_PACKAGE_CBL 131a041a52cSBenoit Cousson bool 132a041a52cSBenoit Cousson 133a7722d87SBenoit Coussonconfig OMAP_PACKAGE_CBS 134a7722d87SBenoit Cousson bool 135a7722d87SBenoit Cousson 1361dbae815STony Lindgrencomment "OMAP Board Type" 137f558b275STony Lindgren depends on ARCH_OMAP2PLUS 1381dbae815STony Lindgren 1391dbae815STony Lindgrenconfig MACH_OMAP_GENERIC 1408d61649dSBenoit Cousson bool "Generic OMAP2+ board" 141f558b275STony Lindgren depends on ARCH_OMAP2PLUS 142ffb63e34STony Lindgren default y 1438d61649dSBenoit Cousson help 1448d61649dSBenoit Cousson Support for generic TI OMAP2+ boards using Flattened Device Tree. 1458d61649dSBenoit Cousson More information at Documentation/devicetree 1461dbae815STony Lindgren 1471b52d5dfSKalle Valoconfig MACH_OMAP2_TUSB6010 1481b52d5dfSKalle Valo bool 14959b479e0STony Lindgren depends on ARCH_OMAP2 && SOC_OMAP2420 1501b52d5dfSKalle Valo default y if MACH_NOKIA_N8X0 1511b52d5dfSKalle Valo 1521dbae815STony Lindgrenconfig MACH_OMAP_H4 1531dbae815STony Lindgren bool "OMAP 2420 H4 board" 15459b479e0STony Lindgren depends on SOC_OMAP2420 155ffb63e34STony Lindgren default y 15623275d45STony Lindgren select OMAP_PACKAGE_ZAF 157f6049312SDavid Brownell select OMAP_DEBUG_DEVICES 1581dbae815STony Lindgren 1599b6553cdSTony Lindgrenconfig MACH_OMAP_APOLLON 1609b6553cdSTony Lindgren bool "OMAP 2420 Apollon board" 16159b479e0STony Lindgren depends on SOC_OMAP2420 162ffb63e34STony Lindgren default y 163b52b14efSTony Lindgren select OMAP_PACKAGE_ZAC 16472d0f1c3SSyed Mohammed Khasim 16572d0f1c3SSyed Mohammed Khasimconfig MACH_OMAP_2430SDP 16672d0f1c3SSyed Mohammed Khasim bool "OMAP 2430 SDP board" 16759b479e0STony Lindgren depends on SOC_OMAP2430 168ffb63e34STony Lindgren default y 169369ed78fSTony Lindgren select OMAP_PACKAGE_ZAC 17072d0f1c3SSyed Mohammed Khasim 1712885f000SSyed Mohammed, Khasimconfig MACH_OMAP3_BEAGLE 1722885f000SSyed Mohammed, Khasim bool "OMAP3 BEAGLE board" 173a8eb7ca0STony Lindgren depends on ARCH_OMAP3 174ffb63e34STony Lindgren default y 175ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 1762885f000SSyed Mohammed, Khasim 177476544caSThomas Weberconfig MACH_DEVKIT8000 178476544caSThomas Weber bool "DEVKIT8000 board" 179476544caSThomas Weber depends on ARCH_OMAP3 180ffb63e34STony Lindgren default y 18151824c5fSThomas Weber select OMAP_PACKAGE_CUS 182476544caSThomas Weber 18349265651SNishant Kamatconfig MACH_OMAP_LDP 18449265651SNishant Kamat bool "OMAP3 LDP board" 185a8eb7ca0STony Lindgren depends on ARCH_OMAP3 186ffb63e34STony Lindgren default y 187ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 18849265651SNishant Kamat 189d40f3f15STim Nordellconfig MACH_OMAP3530_LV_SOM 190d40f3f15STim Nordell bool "OMAP3 Logic 3530 LV SOM board" 191d40f3f15STim Nordell depends on ARCH_OMAP3 192d40f3f15STim Nordell select OMAP_PACKAGE_CBB 193d40f3f15STim Nordell default y 194d40f3f15STim Nordell help 195d40f3f15STim Nordell Support for the LogicPD OMAP3530 SOM Development kit 196d40f3f15STim Nordell for full description please see the products webpage at 197d40f3f15STim Nordell http://www.logicpd.com/products/development-kits/texas-instruments-zoom%E2%84%A2-omap35x-development-kit 198d40f3f15STim Nordell 199d40f3f15STim Nordellconfig MACH_OMAP3_TORPEDO 200d40f3f15STim Nordell bool "OMAP3 Logic 35x Torpedo board" 201d40f3f15STim Nordell depends on ARCH_OMAP3 202d40f3f15STim Nordell select OMAP_PACKAGE_CBB 203d40f3f15STim Nordell default y 204d40f3f15STim Nordell help 205d40f3f15STim Nordell Support for the LogicPD OMAP35x Torpedo Development kit 206d40f3f15STim Nordell for full description please see the products webpage at 207d40f3f15STim Nordell http://www.logicpd.com/products/development-kits/zoom-omap35x-torpedo-development-kit 208d40f3f15STim Nordell 209eba2645aSSteve Sakomanconfig MACH_OVERO 210eba2645aSSteve Sakoman bool "Gumstix Overo board" 211a8eb7ca0STony Lindgren depends on ARCH_OMAP3 212ffb63e34STony Lindgren default y 213ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 214da177247SGrazvydas Ignotas 21553c5ec31SSyed Mohammed Khasimconfig MACH_OMAP3EVM 21653c5ec31SSyed Mohammed Khasim bool "OMAP 3530 EVM board" 217a8eb7ca0STony Lindgren depends on ARCH_OMAP3 218ffb63e34STony Lindgren default y 219342aa2c1SVaibhav Hiremath select OMAP_PACKAGE_CBB 22053c5ec31SSyed Mohammed Khasim 221c625327eSRanjith Lohithakshanconfig MACH_OMAP3517EVM 222c625327eSRanjith Lohithakshan bool "OMAP3517/ AM3517 EVM board" 223a8eb7ca0STony Lindgren depends on ARCH_OMAP3 224ffb63e34STony Lindgren default y 225ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 226c625327eSRanjith Lohithakshan 2271cb125caSSrinathconfig MACH_CRANEBOARD 2281cb125caSSrinath bool "AM3517/05 CRANE board" 2291cb125caSSrinath depends on ARCH_OMAP3 2301cb125caSSrinath select OMAP_PACKAGE_CBB 2311cb125caSSrinath 232da177247SGrazvydas Ignotasconfig MACH_OMAP3_PANDORA 233da177247SGrazvydas Ignotas bool "OMAP3 Pandora" 234a8eb7ca0STony Lindgren depends on ARCH_OMAP3 235ffb63e34STony Lindgren default y 236ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 237a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 2386fdc29e2SSyed Mohammed Khasim 239a17fb8f5SRadek Pilarconfig MACH_TOUCHBOOK 2407a079cabSGregoire Gentil bool "OMAP3 Touch Book" 241a8eb7ca0STony Lindgren depends on ARCH_OMAP3 242ffb63e34STony Lindgren default y 243a17fb8f5SRadek Pilar select OMAP_PACKAGE_CBB 2447a079cabSGregoire Gentil 2456fdc29e2SSyed Mohammed Khasimconfig MACH_OMAP_3430SDP 2466fdc29e2SSyed Mohammed Khasim bool "OMAP 3430 SDP board" 247a8eb7ca0STony Lindgren depends on ARCH_OMAP3 248ffb63e34STony Lindgren default y 249ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 250ffe7f95bSLauri Leukkunen 251d2fbf345STony Lindgrenconfig MACH_NOKIA_N800 252d2fbf345STony Lindgren bool 253d2fbf345STony Lindgren 254d2fbf345STony Lindgrenconfig MACH_NOKIA_N810 255d2fbf345STony Lindgren bool 256d2fbf345STony Lindgren 257d2fbf345STony Lindgrenconfig MACH_NOKIA_N810_WIMAX 258d2fbf345STony Lindgren bool 259d2fbf345STony Lindgren 26063138812SKalle Valoconfig MACH_NOKIA_N8X0 26163138812SKalle Valo bool "Nokia N800/N810" 26259b479e0STony Lindgren depends on SOC_OMAP2420 263ffb63e34STony Lindgren default y 264bd8f0fc9STony Lindgren select OMAP_PACKAGE_ZAC 265d2fbf345STony Lindgren select MACH_NOKIA_N800 266d2fbf345STony Lindgren select MACH_NOKIA_N810 267d2fbf345STony Lindgren select MACH_NOKIA_N810_WIMAX 26863138812SKalle Valo 2692d200665SAaro Koskinenconfig MACH_NOKIA_RM680 27063fc5f3bSAaro Koskinen bool "Nokia RM-680/696 board" 2712d200665SAaro Koskinen depends on ARCH_OMAP3 2722d200665SAaro Koskinen default y 2732d200665SAaro Koskinen select OMAP_PACKAGE_CBB 27463fc5f3bSAaro Koskinen select MACH_NOKIA_RM696 2752d200665SAaro Koskinen 276ffe7f95bSLauri Leukkunenconfig MACH_NOKIA_RX51 277ffe7f95bSLauri Leukkunen bool "Nokia RX-51 board" 278a8eb7ca0STony Lindgren depends on ARCH_OMAP3 279ffb63e34STony Lindgren default y 280ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 281577145f4SVikram Pandita 282577145f4SVikram Panditaconfig MACH_OMAP_ZOOM2 283577145f4SVikram Pandita bool "OMAP3 Zoom2 board" 284a8eb7ca0STony Lindgren depends on ARCH_OMAP3 285ffb63e34STony Lindgren default y 286ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 28712a75da2SGovindraj.R select SERIAL_8250 28812a75da2SGovindraj.R select SERIAL_CORE_CONSOLE 28912a75da2SGovindraj.R select SERIAL_8250_CONSOLE 290a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 29146ba0abfSSantosh Shilimkar 2925f35fbe8Svikram panditaconfig MACH_OMAP_ZOOM3 2935f35fbe8Svikram pandita bool "OMAP3630 Zoom3 board" 294a8eb7ca0STony Lindgren depends on ARCH_OMAP3 295ffb63e34STony Lindgren default y 296662c8b55STony Lindgren select OMAP_PACKAGE_CBP 29712a75da2SGovindraj.R select SERIAL_8250 29812a75da2SGovindraj.R select SERIAL_CORE_CONSOLE 29912a75da2SGovindraj.R select SERIAL_8250_CONSOLE 300a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 3015f35fbe8Svikram pandita 3022886d128SMike Rapoportconfig MACH_CM_T35 303c3146974SIgor Grinberg bool "CompuLab CM-T35/CM-T3730 modules" 304a8eb7ca0STony Lindgren depends on ARCH_OMAP3 305ffb63e34STony Lindgren default y 306c3146974SIgor Grinberg select MACH_CM_T3730 307ca5742bdSTony Lindgren select OMAP_PACKAGE_CUS 3082886d128SMike Rapoport 309d04b620eSIgor Grinbergconfig MACH_CM_T3517 310d04b620eSIgor Grinberg bool "CompuLab CM-T3517 module" 311d04b620eSIgor Grinberg depends on ARCH_OMAP3 312d04b620eSIgor Grinberg default y 313d04b620eSIgor Grinberg select OMAP_PACKAGE_CBB 314d04b620eSIgor Grinberg 315c3146974SIgor Grinbergconfig MACH_CM_T3730 316c3146974SIgor Grinberg bool 317c3146974SIgor Grinberg 31858e11162SEnric Balletbo i Serraconfig MACH_IGEP0020 31928e0f13cSEnric Balletbo i Serra bool "IGEP v2 board" 320a8eb7ca0STony Lindgren depends on ARCH_OMAP3 321ffb63e34STony Lindgren default y 322ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 32358e11162SEnric Balletbo i Serra 324e844b1daSEnric Balletbo i Serraconfig MACH_IGEP0030 325e844b1daSEnric Balletbo i Serra bool "IGEP OMAP3 module" 326e844b1daSEnric Balletbo i Serra depends on ARCH_OMAP3 327e844b1daSEnric Balletbo i Serra default y 328e844b1daSEnric Balletbo i Serra select OMAP_PACKAGE_CBB 3297be13ad0SMike Rapoport select MACH_IGEP0020 330e844b1daSEnric Balletbo i Serra 3319cbc3493SJasonconfig MACH_SBC3530 3329cbc3493SJason bool "OMAP3 SBC STALKER board" 3339cbc3493SJason depends on ARCH_OMAP3 334ffb63e34STony Lindgren default y 3359cbc3493SJason select OMAP_PACKAGE_CUS 3369cbc3493SJason 33734c9ac23Svikram panditaconfig MACH_OMAP_3630SDP 33834c9ac23Svikram pandita bool "OMAP3630 SDP board" 339a8eb7ca0STony Lindgren depends on ARCH_OMAP3 340ffb63e34STony Lindgren default y 341662c8b55STony Lindgren select OMAP_PACKAGE_CBP 34234c9ac23Svikram pandita 3432c87fb2eSHemant Pedanekarconfig MACH_TI8168EVM 3442c87fb2eSHemant Pedanekar bool "TI8168 Evaluation Module" 34533959553SKevin Hilman depends on SOC_TI81XX 3462c87fb2eSHemant Pedanekar default y 3472c87fb2eSHemant Pedanekar 348a890b676SHemant Pedanekarconfig MACH_TI8148EVM 349a890b676SHemant Pedanekar bool "TI8148 Evaluation Module" 35033959553SKevin Hilman depends on SOC_TI81XX 351a890b676SHemant Pedanekar default y 352a890b676SHemant Pedanekar 35346ba0abfSSantosh Shilimkarconfig MACH_OMAP_4430SDP 35446ba0abfSSantosh Shilimkar bool "OMAP 4430 SDP board" 355ffb63e34STony Lindgren default y 35646ba0abfSSantosh Shilimkar depends on ARCH_OMAP4 357fb6bf632SBenoit Cousson select OMAP_PACKAGE_CBL 3586fea7b0aSBenoit Cousson select OMAP_PACKAGE_CBS 359a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 360183bd50fSAlexander Shishkin 361b075f58bSDavid Andersconfig MACH_OMAP4_PANDA 362b075f58bSDavid Anders bool "OMAP4 Panda Board" 363b075f58bSDavid Anders default y 364b075f58bSDavid Anders depends on ARCH_OMAP4 365fc63de82Ssricharan select OMAP_PACKAGE_CBL 366fc63de82Ssricharan select OMAP_PACKAGE_CBS 367a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 368b075f58bSDavid Anders 369183bd50fSAlexander Shishkinconfig OMAP3_EMU 370183bd50fSAlexander Shishkin bool "OMAP3 debugging peripherals" 371183bd50fSAlexander Shishkin depends on ARCH_OMAP3 372a8a6565cSMing Lei select ARM_AMBA 373183bd50fSAlexander Shishkin select OC_ETM 374183bd50fSAlexander Shishkin help 375183bd50fSAlexander Shishkin Say Y here to enable debugging hardware of omap3 376183bd50fSAlexander Shishkin 37718862cbeSPaul Walmsleyconfig OMAP3_SDRC_AC_TIMING 37818862cbeSPaul Walmsley bool "Enable SDRC AC timing register changes" 379a8eb7ca0STony Lindgren depends on ARCH_OMAP3 38018862cbeSPaul Walmsley default n 38118862cbeSPaul Walmsley help 38218862cbeSPaul Walmsley If you know that none of your system initiators will attempt to 38318862cbeSPaul Walmsley access SDRAM during CORE DVFS, select Y here. This should boost 38418862cbeSPaul Walmsley SDRAM performance at lower CORE OPPs. There are relatively few 38518862cbeSPaul Walmsley users who will wish to say yes at this point - almost everyone will 38618862cbeSPaul Walmsley wish to say no. Selecting yes without understanding what is 38718862cbeSPaul Walmsley going on could result in system crashes; 38818862cbeSPaul Walmsley 389137d105dSSantosh Shilimkarconfig OMAP4_ERRATA_I688 3902ec1fc4eSSantosh Shilimkar bool "OMAP4 errata: Async Bridge Corruption" 3912ec1fc4eSSantosh Shilimkar depends on ARCH_OMAP4 392137d105dSSantosh Shilimkar select ARCH_HAS_BARRIERS 393137d105dSSantosh Shilimkar help 394137d105dSSantosh Shilimkar If a data is stalled inside asynchronous bridge because of back 395137d105dSSantosh Shilimkar pressure, it may be accepted multiple times, creating pointer 396137d105dSSantosh Shilimkar misalignment that will corrupt next transfers on that data path 397137d105dSSantosh Shilimkar until next reset of the system (No recovery procedure once the 398137d105dSSantosh Shilimkar issue is hit, the path remains consistently broken). Async bridge 399137d105dSSantosh Shilimkar can be found on path between MPU to EMIF and MPU to L3 interconnect. 400137d105dSSantosh Shilimkar This situation can happen only when the idle is initiated by a 401137d105dSSantosh Shilimkar Master Request Disconnection (which is trigged by software when 402137d105dSSantosh Shilimkar executing WFI on CPU). 403137d105dSSantosh Shilimkar The work-around for this errata needs all the initiators connected 404137d105dSSantosh Shilimkar through async bridge must ensure that data path is properly drained 405137d105dSSantosh Shilimkar before issuing WFI. This condition will be met if one Strongly ordered 406137d105dSSantosh Shilimkar access is performed to the target right before executing the WFI. 407137d105dSSantosh Shilimkar In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained. 408137d105dSSantosh Shilimkar IO barrier ensure that there is no synchronisation loss on initiators 409137d105dSSantosh Shilimkar operating on both interconnect port simultaneously. 4104a54db61STony Lindgrenendmenu 4114a54db61STony Lindgren 4124a54db61STony Lindgrenendif 413