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 9*b1b3f49cSRussell King select HIGHMEM 108d9166b5STony Lindgren select I2C 118d9166b5STony Lindgren select I2C_OMAP 128d9166b5STony Lindgren select MENELAUS if ARCH_OMAP2 13*b1b3f49cSRussell King select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5 14*b1b3f49cSRussell King select PINCTRL 15*b1b3f49cSRussell King select PM_RUNTIME 16*b1b3f49cSRussell King select REGULATOR 17*b1b3f49cSRussell King select SERIAL_OMAP 18*b1b3f49cSRussell King select SERIAL_OMAP_CONSOLE 198d9166b5STony Lindgren select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4 208d9166b5STony Lindgren select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4 21*b1b3f49cSRussell King select VFP 228d9166b5STony Lindgren help 238d9166b5STony Lindgren Compile a kernel suitable for booting most boards 248d9166b5STony Lindgren 25ecc46cfdSVaibhav Hiremathconfig SOC_HAS_OMAP2_SDRC 26ecc46cfdSVaibhav Hiremath bool "OMAP2 SDRAM Controller support" 27ecc46cfdSVaibhav Hiremath 28fa6d79d2SSantosh Shilimkarconfig SOC_HAS_REALTIME_COUNTER 29fa6d79d2SSantosh Shilimkar bool "Real time free running counter" 30fa6d79d2SSantosh Shilimkar 3168ac8f7dSTony Lindgrenconfig ARCH_OMAP2 32f558b275STony Lindgren bool "TI OMAP2" 33f558b275STony Lindgren depends on ARCH_OMAP2PLUS 34f558b275STony Lindgren default y 3568ac8f7dSTony Lindgren select CPU_V6 366b2f55d7SMarc Zyngier select MULTI_IRQ_HANDLER 37ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 3868ac8f7dSTony Lindgren 3968ac8f7dSTony Lindgrenconfig ARCH_OMAP3 40f558b275STony Lindgren bool "TI OMAP3" 41f558b275STony Lindgren depends on ARCH_OMAP2PLUS 42f558b275STony Lindgren default y 43fd1478cdSNishanth Menon select ARCH_HAS_OPP 4415e0d9e3SArnd Bergmann select ARM_CPU_SUSPEND if PM 45*b1b3f49cSRussell King select CPU_V7 4608d33b27SMarc Zyngier select MULTI_IRQ_HANDLER 470ee7261cSSantosh Shilimkar select OMAP_INTERCONNECT 48*b1b3f49cSRussell King select PM_OPP if PM 49*b1b3f49cSRussell King select PM_RUNTIME if CPU_IDLE 50*b1b3f49cSRussell King select SOC_HAS_OMAP2_SDRC 51*b1b3f49cSRussell King select USB_ARCH_HAS_EHCI if USB_SUPPORT 5268ac8f7dSTony Lindgren 5368ac8f7dSTony Lindgrenconfig ARCH_OMAP4 54f558b275STony Lindgren bool "TI OMAP4" 55f558b275STony Lindgren default y 56f558b275STony Lindgren depends on ARCH_OMAP2PLUS 57*b1b3f49cSRussell King select ARCH_HAS_OPP 58*b1b3f49cSRussell King select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP 59*b1b3f49cSRussell King select ARM_CPU_SUSPEND if PM 60*b1b3f49cSRussell King select ARM_ERRATA_720789 61*b1b3f49cSRussell King select ARM_GIC 62c957445bSDave Martin select CACHE_L2X0 6368ac8f7dSTony Lindgren select CPU_V7 643b55658aSDave Martin select HAVE_SMP 6507787a85SSantosh Shilimkar select LOCAL_TIMERS if SMP 66*b1b3f49cSRussell King select OMAP_INTERCONNECT 67455d4d2dSSantosh Shilimkar select PL310_ERRATA_588369 684bdb1577SSantosh Shilimkar select PL310_ERRATA_727915 69f5a6422dSNishanth Menon select PM_OPP if PM 70*b1b3f49cSRussell King select PM_RUNTIME if CPU_IDLE 71b2a5124eSTony Lindgren select USB_ARCH_HAS_EHCI if USB_SUPPORT 7268ac8f7dSTony Lindgren 7335eb4298SR Sricharanconfig SOC_OMAP5 7435eb4298SR Sricharan bool "TI OMAP5" 753c7c5dabSSantosh Shilimkar select ARM_ARCH_TIMER 76*b1b3f49cSRussell King select ARM_CPU_SUSPEND if PM 77*b1b3f49cSRussell King select ARM_GIC 78*b1b3f49cSRussell King select CPU_V7 79*b1b3f49cSRussell King select HAVE_SMP 80*b1b3f49cSRussell King select SOC_HAS_REALTIME_COUNTER 8135eb4298SR Sricharan 821dbae815STony Lindgrencomment "OMAP Core Type" 83f558b275STony Lindgren depends on ARCH_OMAP2 841dbae815STony Lindgren 8559b479e0STony Lindgrenconfig SOC_OMAP2420 861dbae815STony Lindgren bool "OMAP2420 support" 87f558b275STony Lindgren depends on ARCH_OMAP2 88ffb63e34STony Lindgren default y 8977900a2fSTimo Teras select OMAP_DM_TIMER 90ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 911dbae815STony Lindgren 9259b479e0STony Lindgrenconfig SOC_OMAP2430 9372d0f1c3SSyed Mohammed Khasim bool "OMAP2430 support" 94f558b275STony Lindgren depends on ARCH_OMAP2 95ffb63e34STony Lindgren default y 96ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 9772d0f1c3SSyed Mohammed Khasim 9859b479e0STony Lindgrenconfig SOC_OMAP3430 99cc26b3b0SSyed Mohammed, Khasim bool "OMAP3430 support" 100f558b275STony Lindgren depends on ARCH_OMAP3 101ffb63e34STony Lindgren default y 102ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 103cc26b3b0SSyed Mohammed, Khasim 10433959553SKevin Hilmanconfig SOC_TI81XX 105a920360fSHemant Pedanekar bool "TI81XX support" 106f558b275STony Lindgren depends on ARCH_OMAP3 1074bd7be22SHemant Pedanekar default y 1084bd7be22SHemant Pedanekar 109bb6abcf4SKevin Hilmanconfig SOC_AM33XX 11099541195SAfzal Mohammed bool "AM33XX support" 11199541195SAfzal Mohammed default y 1121c213ba1SVaibhav Hiremath select ARM_CPU_SUSPEND if PM 113*b1b3f49cSRussell King select CPU_V7 1141c213ba1SVaibhav Hiremath select MULTI_IRQ_HANDLER 11599541195SAfzal Mohammed 116fc440461STony Lindgrenconfig OMAP_PACKAGE_ZAF 117fc440461STony Lindgren bool 118fc440461STony Lindgren 119fc440461STony Lindgrenconfig OMAP_PACKAGE_ZAC 120fc440461STony Lindgren bool 121fc440461STony Lindgren 122ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CBC 123ddaa912aSTony Lindgren bool 124ddaa912aSTony Lindgren 125ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CBB 126ddaa912aSTony Lindgren bool 127ddaa912aSTony Lindgren 128ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CUS 129ddaa912aSTony Lindgren bool 130ddaa912aSTony Lindgren 131662c8b55STony Lindgrenconfig OMAP_PACKAGE_CBP 132662c8b55STony Lindgren bool 133662c8b55STony Lindgren 134a041a52cSBenoit Coussonconfig OMAP_PACKAGE_CBL 135a041a52cSBenoit Cousson bool 136a041a52cSBenoit Cousson 137a7722d87SBenoit Coussonconfig OMAP_PACKAGE_CBS 138a7722d87SBenoit Cousson bool 139a7722d87SBenoit Cousson 1401dbae815STony Lindgrencomment "OMAP Board Type" 141f558b275STony Lindgren depends on ARCH_OMAP2PLUS 1421dbae815STony Lindgren 1431dbae815STony Lindgrenconfig MACH_OMAP_GENERIC 1448d61649dSBenoit Cousson bool "Generic OMAP2+ board" 145f558b275STony Lindgren depends on ARCH_OMAP2PLUS 146ffb63e34STony Lindgren default y 1478d61649dSBenoit Cousson help 1488d61649dSBenoit Cousson Support for generic TI OMAP2+ boards using Flattened Device Tree. 1498d61649dSBenoit Cousson More information at Documentation/devicetree 1501dbae815STony Lindgren 1511b52d5dfSKalle Valoconfig MACH_OMAP2_TUSB6010 1521b52d5dfSKalle Valo bool 15359b479e0STony Lindgren depends on ARCH_OMAP2 && SOC_OMAP2420 1541b52d5dfSKalle Valo default y if MACH_NOKIA_N8X0 1551b52d5dfSKalle Valo 1561dbae815STony Lindgrenconfig MACH_OMAP_H4 1571dbae815STony Lindgren bool "OMAP 2420 H4 board" 15859b479e0STony Lindgren depends on SOC_OMAP2420 159ffb63e34STony Lindgren default y 160f6049312SDavid Brownell select OMAP_DEBUG_DEVICES 161*b1b3f49cSRussell King select OMAP_PACKAGE_ZAF 1621dbae815STony Lindgren 1639b6553cdSTony Lindgrenconfig MACH_OMAP_APOLLON 1649b6553cdSTony Lindgren bool "OMAP 2420 Apollon board" 16559b479e0STony Lindgren depends on SOC_OMAP2420 166ffb63e34STony Lindgren default y 167b52b14efSTony Lindgren select OMAP_PACKAGE_ZAC 16872d0f1c3SSyed Mohammed Khasim 16972d0f1c3SSyed Mohammed Khasimconfig MACH_OMAP_2430SDP 17072d0f1c3SSyed Mohammed Khasim bool "OMAP 2430 SDP board" 17159b479e0STony Lindgren depends on SOC_OMAP2430 172ffb63e34STony Lindgren default y 173369ed78fSTony Lindgren select OMAP_PACKAGE_ZAC 17472d0f1c3SSyed Mohammed Khasim 1752885f000SSyed Mohammed, Khasimconfig MACH_OMAP3_BEAGLE 1762885f000SSyed Mohammed, Khasim bool "OMAP3 BEAGLE board" 177a8eb7ca0STony Lindgren depends on ARCH_OMAP3 178ffb63e34STony Lindgren default y 179ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 1802885f000SSyed Mohammed, Khasim 181476544caSThomas Weberconfig MACH_DEVKIT8000 182476544caSThomas Weber bool "DEVKIT8000 board" 183476544caSThomas Weber depends on ARCH_OMAP3 184ffb63e34STony Lindgren default y 18551824c5fSThomas Weber select OMAP_PACKAGE_CUS 186476544caSThomas Weber 18749265651SNishant Kamatconfig MACH_OMAP_LDP 18849265651SNishant Kamat bool "OMAP3 LDP board" 189a8eb7ca0STony Lindgren depends on ARCH_OMAP3 190ffb63e34STony Lindgren default y 191ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 19249265651SNishant Kamat 193d40f3f15STim Nordellconfig MACH_OMAP3530_LV_SOM 194d40f3f15STim Nordell bool "OMAP3 Logic 3530 LV SOM board" 195d40f3f15STim Nordell depends on ARCH_OMAP3 196d40f3f15STim Nordell default y 197*b1b3f49cSRussell King select OMAP_PACKAGE_CBB 198d40f3f15STim Nordell help 199d40f3f15STim Nordell Support for the LogicPD OMAP3530 SOM Development kit 200d40f3f15STim Nordell for full description please see the products webpage at 201d40f3f15STim Nordell http://www.logicpd.com/products/development-kits/texas-instruments-zoom%E2%84%A2-omap35x-development-kit 202d40f3f15STim Nordell 203d40f3f15STim Nordellconfig MACH_OMAP3_TORPEDO 204d40f3f15STim Nordell bool "OMAP3 Logic 35x Torpedo board" 205d40f3f15STim Nordell depends on ARCH_OMAP3 206d40f3f15STim Nordell default y 207*b1b3f49cSRussell King select OMAP_PACKAGE_CBB 208d40f3f15STim Nordell help 209d40f3f15STim Nordell Support for the LogicPD OMAP35x Torpedo Development kit 210d40f3f15STim Nordell for full description please see the products webpage at 211d40f3f15STim Nordell http://www.logicpd.com/products/development-kits/zoom-omap35x-torpedo-development-kit 212d40f3f15STim Nordell 213eba2645aSSteve Sakomanconfig MACH_OVERO 214eba2645aSSteve Sakoman bool "Gumstix Overo board" 215a8eb7ca0STony Lindgren depends on ARCH_OMAP3 216ffb63e34STony Lindgren default y 217ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 218da177247SGrazvydas Ignotas 21953c5ec31SSyed Mohammed Khasimconfig MACH_OMAP3EVM 22053c5ec31SSyed Mohammed Khasim bool "OMAP 3530 EVM board" 221a8eb7ca0STony Lindgren depends on ARCH_OMAP3 222ffb63e34STony Lindgren default y 223342aa2c1SVaibhav Hiremath select OMAP_PACKAGE_CBB 22453c5ec31SSyed Mohammed Khasim 225c625327eSRanjith Lohithakshanconfig MACH_OMAP3517EVM 226c625327eSRanjith Lohithakshan bool "OMAP3517/ AM3517 EVM board" 227a8eb7ca0STony Lindgren depends on ARCH_OMAP3 228ffb63e34STony Lindgren default y 229ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 230c625327eSRanjith Lohithakshan 2311cb125caSSrinathconfig MACH_CRANEBOARD 2321cb125caSSrinath bool "AM3517/05 CRANE board" 2331cb125caSSrinath depends on ARCH_OMAP3 2341cb125caSSrinath select OMAP_PACKAGE_CBB 2351cb125caSSrinath 236da177247SGrazvydas Ignotasconfig MACH_OMAP3_PANDORA 237da177247SGrazvydas Ignotas bool "OMAP3 Pandora" 238a8eb7ca0STony Lindgren depends on ARCH_OMAP3 239ffb63e34STony Lindgren default y 240ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 241a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 2426fdc29e2SSyed Mohammed Khasim 243a17fb8f5SRadek Pilarconfig MACH_TOUCHBOOK 2447a079cabSGregoire Gentil bool "OMAP3 Touch Book" 245a8eb7ca0STony Lindgren depends on ARCH_OMAP3 246ffb63e34STony Lindgren default y 247a17fb8f5SRadek Pilar select OMAP_PACKAGE_CBB 2487a079cabSGregoire Gentil 2496fdc29e2SSyed Mohammed Khasimconfig MACH_OMAP_3430SDP 2506fdc29e2SSyed Mohammed Khasim bool "OMAP 3430 SDP board" 251a8eb7ca0STony Lindgren depends on ARCH_OMAP3 252ffb63e34STony Lindgren default y 253ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 254ffe7f95bSLauri Leukkunen 255d2fbf345STony Lindgrenconfig MACH_NOKIA_N800 256d2fbf345STony Lindgren bool 257d2fbf345STony Lindgren 258d2fbf345STony Lindgrenconfig MACH_NOKIA_N810 259d2fbf345STony Lindgren bool 260d2fbf345STony Lindgren 261d2fbf345STony Lindgrenconfig MACH_NOKIA_N810_WIMAX 262d2fbf345STony Lindgren bool 263d2fbf345STony Lindgren 26463138812SKalle Valoconfig MACH_NOKIA_N8X0 26563138812SKalle Valo bool "Nokia N800/N810" 26659b479e0STony Lindgren depends on SOC_OMAP2420 267ffb63e34STony Lindgren default y 268d2fbf345STony Lindgren select MACH_NOKIA_N800 269d2fbf345STony Lindgren select MACH_NOKIA_N810 270d2fbf345STony Lindgren select MACH_NOKIA_N810_WIMAX 271*b1b3f49cSRussell King select OMAP_PACKAGE_ZAC 27263138812SKalle Valo 2732d200665SAaro Koskinenconfig MACH_NOKIA_RM680 27463fc5f3bSAaro Koskinen bool "Nokia RM-680/696 board" 2752d200665SAaro Koskinen depends on ARCH_OMAP3 2762d200665SAaro Koskinen default y 27763fc5f3bSAaro Koskinen select MACH_NOKIA_RM696 278*b1b3f49cSRussell King select OMAP_PACKAGE_CBB 2792d200665SAaro Koskinen 280ffe7f95bSLauri Leukkunenconfig MACH_NOKIA_RX51 281ffe7f95bSLauri Leukkunen bool "Nokia RX-51 board" 282a8eb7ca0STony Lindgren depends on ARCH_OMAP3 283ffb63e34STony Lindgren default y 284ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 285577145f4SVikram Pandita 286577145f4SVikram Panditaconfig MACH_OMAP_ZOOM2 287577145f4SVikram Pandita bool "OMAP3 Zoom2 board" 288a8eb7ca0STony Lindgren depends on ARCH_OMAP3 289ffb63e34STony Lindgren default y 290ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 291a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 292*b1b3f49cSRussell King select SERIAL_8250 293*b1b3f49cSRussell King select SERIAL_8250_CONSOLE 294*b1b3f49cSRussell King select SERIAL_CORE_CONSOLE 29546ba0abfSSantosh Shilimkar 2965f35fbe8Svikram panditaconfig MACH_OMAP_ZOOM3 2975f35fbe8Svikram pandita bool "OMAP3630 Zoom3 board" 298a8eb7ca0STony Lindgren depends on ARCH_OMAP3 299ffb63e34STony Lindgren default y 300662c8b55STony Lindgren select OMAP_PACKAGE_CBP 301a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 302*b1b3f49cSRussell King select SERIAL_8250 303*b1b3f49cSRussell King select SERIAL_8250_CONSOLE 304*b1b3f49cSRussell King select SERIAL_CORE_CONSOLE 3055f35fbe8Svikram pandita 3062886d128SMike Rapoportconfig MACH_CM_T35 307c3146974SIgor Grinberg bool "CompuLab CM-T35/CM-T3730 modules" 308a8eb7ca0STony Lindgren depends on ARCH_OMAP3 309ffb63e34STony Lindgren default y 310c3146974SIgor Grinberg select MACH_CM_T3730 311ca5742bdSTony Lindgren select OMAP_PACKAGE_CUS 3122886d128SMike Rapoport 313d04b620eSIgor Grinbergconfig MACH_CM_T3517 314d04b620eSIgor Grinberg bool "CompuLab CM-T3517 module" 315d04b620eSIgor Grinberg depends on ARCH_OMAP3 316d04b620eSIgor Grinberg default y 317d04b620eSIgor Grinberg select OMAP_PACKAGE_CBB 318d04b620eSIgor Grinberg 319c3146974SIgor Grinbergconfig MACH_CM_T3730 320c3146974SIgor Grinberg bool 321c3146974SIgor Grinberg 32258e11162SEnric Balletbo i Serraconfig MACH_IGEP0020 32328e0f13cSEnric Balletbo i Serra bool "IGEP v2 board" 324a8eb7ca0STony Lindgren depends on ARCH_OMAP3 325ffb63e34STony Lindgren default y 326ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 32758e11162SEnric Balletbo i Serra 328e844b1daSEnric Balletbo i Serraconfig MACH_IGEP0030 329e844b1daSEnric Balletbo i Serra bool "IGEP OMAP3 module" 330e844b1daSEnric Balletbo i Serra depends on ARCH_OMAP3 331e844b1daSEnric Balletbo i Serra default y 3327be13ad0SMike Rapoport select MACH_IGEP0020 333*b1b3f49cSRussell King select OMAP_PACKAGE_CBB 334e844b1daSEnric Balletbo i Serra 3359cbc3493SJasonconfig MACH_SBC3530 3369cbc3493SJason bool "OMAP3 SBC STALKER board" 3379cbc3493SJason depends on ARCH_OMAP3 338ffb63e34STony Lindgren default y 3399cbc3493SJason select OMAP_PACKAGE_CUS 3409cbc3493SJason 34134c9ac23Svikram panditaconfig MACH_OMAP_3630SDP 34234c9ac23Svikram pandita bool "OMAP3630 SDP board" 343a8eb7ca0STony Lindgren depends on ARCH_OMAP3 344ffb63e34STony Lindgren default y 345662c8b55STony Lindgren select OMAP_PACKAGE_CBP 34634c9ac23Svikram pandita 3472c87fb2eSHemant Pedanekarconfig MACH_TI8168EVM 3482c87fb2eSHemant Pedanekar bool "TI8168 Evaluation Module" 34933959553SKevin Hilman depends on SOC_TI81XX 3502c87fb2eSHemant Pedanekar default y 3512c87fb2eSHemant Pedanekar 352a890b676SHemant Pedanekarconfig MACH_TI8148EVM 353a890b676SHemant Pedanekar bool "TI8148 Evaluation Module" 35433959553SKevin Hilman depends on SOC_TI81XX 355a890b676SHemant Pedanekar default y 356a890b676SHemant Pedanekar 35746ba0abfSSantosh Shilimkarconfig MACH_OMAP_4430SDP 35846ba0abfSSantosh Shilimkar bool "OMAP 4430 SDP board" 359ffb63e34STony Lindgren default y 36046ba0abfSSantosh Shilimkar depends on ARCH_OMAP4 361fb6bf632SBenoit Cousson select OMAP_PACKAGE_CBL 3626fea7b0aSBenoit Cousson select OMAP_PACKAGE_CBS 363a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 364183bd50fSAlexander Shishkin 365b075f58bSDavid Andersconfig MACH_OMAP4_PANDA 366b075f58bSDavid Anders bool "OMAP4 Panda Board" 367b075f58bSDavid Anders default y 368b075f58bSDavid Anders depends on ARCH_OMAP4 369fc63de82Ssricharan select OMAP_PACKAGE_CBL 370fc63de82Ssricharan select OMAP_PACKAGE_CBS 371a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 372b075f58bSDavid Anders 373183bd50fSAlexander Shishkinconfig OMAP3_EMU 374183bd50fSAlexander Shishkin bool "OMAP3 debugging peripherals" 375183bd50fSAlexander Shishkin depends on ARCH_OMAP3 376a8a6565cSMing Lei select ARM_AMBA 377183bd50fSAlexander Shishkin select OC_ETM 378183bd50fSAlexander Shishkin help 379183bd50fSAlexander Shishkin Say Y here to enable debugging hardware of omap3 380183bd50fSAlexander Shishkin 38118862cbeSPaul Walmsleyconfig OMAP3_SDRC_AC_TIMING 38218862cbeSPaul Walmsley bool "Enable SDRC AC timing register changes" 383a8eb7ca0STony Lindgren depends on ARCH_OMAP3 38418862cbeSPaul Walmsley default n 38518862cbeSPaul Walmsley help 38618862cbeSPaul Walmsley If you know that none of your system initiators will attempt to 38718862cbeSPaul Walmsley access SDRAM during CORE DVFS, select Y here. This should boost 38818862cbeSPaul Walmsley SDRAM performance at lower CORE OPPs. There are relatively few 38918862cbeSPaul Walmsley users who will wish to say yes at this point - almost everyone will 39018862cbeSPaul Walmsley wish to say no. Selecting yes without understanding what is 39118862cbeSPaul Walmsley going on could result in system crashes; 39218862cbeSPaul Walmsley 393137d105dSSantosh Shilimkarconfig OMAP4_ERRATA_I688 3942ec1fc4eSSantosh Shilimkar bool "OMAP4 errata: Async Bridge Corruption" 3952ec1fc4eSSantosh Shilimkar depends on ARCH_OMAP4 396137d105dSSantosh Shilimkar select ARCH_HAS_BARRIERS 397137d105dSSantosh Shilimkar help 398137d105dSSantosh Shilimkar If a data is stalled inside asynchronous bridge because of back 399137d105dSSantosh Shilimkar pressure, it may be accepted multiple times, creating pointer 400137d105dSSantosh Shilimkar misalignment that will corrupt next transfers on that data path 401137d105dSSantosh Shilimkar until next reset of the system (No recovery procedure once the 402137d105dSSantosh Shilimkar issue is hit, the path remains consistently broken). Async bridge 403137d105dSSantosh Shilimkar can be found on path between MPU to EMIF and MPU to L3 interconnect. 404137d105dSSantosh Shilimkar This situation can happen only when the idle is initiated by a 405137d105dSSantosh Shilimkar Master Request Disconnection (which is trigged by software when 406137d105dSSantosh Shilimkar executing WFI on CPU). 407137d105dSSantosh Shilimkar The work-around for this errata needs all the initiators connected 408137d105dSSantosh Shilimkar through async bridge must ensure that data path is properly drained 409137d105dSSantosh Shilimkar before issuing WFI. This condition will be met if one Strongly ordered 410137d105dSSantosh Shilimkar access is performed to the target right before executing the WFI. 411137d105dSSantosh Shilimkar In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained. 412137d105dSSantosh Shilimkar IO barrier ensure that there is no synchronisation loss on initiators 413137d105dSSantosh Shilimkar operating on both interconnect port simultaneously. 4144a54db61STony Lindgrenendmenu 4154a54db61STony Lindgren 4164a54db61STony Lindgrenendif 417