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 12*35eb4298SR 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 2768ac8f7dSTony Lindgrenconfig ARCH_OMAP2 28f558b275STony Lindgren bool "TI OMAP2" 29f558b275STony Lindgren depends on ARCH_OMAP2PLUS 30f558b275STony Lindgren default y 3168ac8f7dSTony Lindgren select CPU_V6 326b2f55d7SMarc Zyngier select MULTI_IRQ_HANDLER 33ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 3468ac8f7dSTony Lindgren 3568ac8f7dSTony Lindgrenconfig ARCH_OMAP3 36f558b275STony Lindgren bool "TI OMAP3" 37f558b275STony Lindgren depends on ARCH_OMAP2PLUS 38f558b275STony Lindgren default y 3968ac8f7dSTony Lindgren select CPU_V7 40b2a5124eSTony Lindgren select USB_ARCH_HAS_EHCI if USB_SUPPORT 41fd1478cdSNishanth Menon select ARCH_HAS_OPP 42fd1478cdSNishanth Menon select PM_OPP if PM 4315e0d9e3SArnd Bergmann select ARM_CPU_SUSPEND if PM 4408d33b27SMarc Zyngier select MULTI_IRQ_HANDLER 45ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 4668ac8f7dSTony Lindgren 4768ac8f7dSTony Lindgrenconfig ARCH_OMAP4 48f558b275STony Lindgren bool "TI OMAP4" 49f558b275STony Lindgren default y 50f558b275STony Lindgren depends on ARCH_OMAP2PLUS 51c957445bSDave Martin select CACHE_L2X0 5268ac8f7dSTony Lindgren select CPU_V7 5368ac8f7dSTony Lindgren select ARM_GIC 543b55658aSDave Martin select HAVE_SMP 5507787a85SSantosh Shilimkar select LOCAL_TIMERS if SMP 56455d4d2dSSantosh Shilimkar select PL310_ERRATA_588369 574bdb1577SSantosh Shilimkar select PL310_ERRATA_727915 58455d4d2dSSantosh Shilimkar select ARM_ERRATA_720789 59f5a6422dSNishanth Menon select ARCH_HAS_OPP 60f5a6422dSNishanth Menon select PM_OPP if PM 61b2a5124eSTony Lindgren select USB_ARCH_HAS_EHCI if USB_SUPPORT 6215e0d9e3SArnd Bergmann select ARM_CPU_SUSPEND if PM 6368ac8f7dSTony Lindgren 64*35eb4298SR Sricharanconfig SOC_OMAP5 65*35eb4298SR Sricharan bool "TI OMAP5" 66*35eb4298SR Sricharan select CPU_V7 67*35eb4298SR Sricharan select ARM_GIC 68*35eb4298SR Sricharan select HAVE_SMP 69*35eb4298SR Sricharan 701dbae815STony Lindgrencomment "OMAP Core Type" 71f558b275STony Lindgren depends on ARCH_OMAP2 721dbae815STony Lindgren 7359b479e0STony Lindgrenconfig SOC_OMAP2420 741dbae815STony Lindgren bool "OMAP2420 support" 75f558b275STony Lindgren depends on ARCH_OMAP2 76ffb63e34STony Lindgren default y 7777900a2fSTimo Teras select OMAP_DM_TIMER 78ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 791dbae815STony Lindgren 8059b479e0STony Lindgrenconfig SOC_OMAP2430 8172d0f1c3SSyed Mohammed Khasim bool "OMAP2430 support" 82f558b275STony Lindgren depends on ARCH_OMAP2 83ffb63e34STony Lindgren default y 84ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 8572d0f1c3SSyed Mohammed Khasim 8659b479e0STony Lindgrenconfig SOC_OMAP3430 87cc26b3b0SSyed Mohammed, Khasim bool "OMAP3430 support" 88f558b275STony Lindgren depends on ARCH_OMAP3 89ffb63e34STony Lindgren default y 90ecc46cfdSVaibhav Hiremath select SOC_HAS_OMAP2_SDRC 91cc26b3b0SSyed Mohammed, Khasim 9233959553SKevin Hilmanconfig SOC_TI81XX 93a920360fSHemant Pedanekar bool "TI81XX support" 94f558b275STony Lindgren depends on ARCH_OMAP3 954bd7be22SHemant Pedanekar default y 964bd7be22SHemant Pedanekar 97bb6abcf4SKevin Hilmanconfig SOC_AM33XX 9899541195SAfzal Mohammed bool "AM33XX support" 9999541195SAfzal Mohammed default y 1001c213ba1SVaibhav Hiremath select CPU_V7 1011c213ba1SVaibhav Hiremath select ARM_CPU_SUSPEND if PM 1021c213ba1SVaibhav Hiremath select MULTI_IRQ_HANDLER 10399541195SAfzal Mohammed 104fc440461STony Lindgrenconfig OMAP_PACKAGE_ZAF 105fc440461STony Lindgren bool 106fc440461STony Lindgren 107fc440461STony Lindgrenconfig OMAP_PACKAGE_ZAC 108fc440461STony Lindgren bool 109fc440461STony Lindgren 110ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CBC 111ddaa912aSTony Lindgren bool 112ddaa912aSTony Lindgren 113ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CBB 114ddaa912aSTony Lindgren bool 115ddaa912aSTony Lindgren 116ddaa912aSTony Lindgrenconfig OMAP_PACKAGE_CUS 117ddaa912aSTony Lindgren bool 118ddaa912aSTony Lindgren 119662c8b55STony Lindgrenconfig OMAP_PACKAGE_CBP 120662c8b55STony Lindgren bool 121662c8b55STony Lindgren 122a041a52cSBenoit Coussonconfig OMAP_PACKAGE_CBL 123a041a52cSBenoit Cousson bool 124a041a52cSBenoit Cousson 125a7722d87SBenoit Coussonconfig OMAP_PACKAGE_CBS 126a7722d87SBenoit Cousson bool 127a7722d87SBenoit Cousson 1281dbae815STony Lindgrencomment "OMAP Board Type" 129f558b275STony Lindgren depends on ARCH_OMAP2PLUS 1301dbae815STony Lindgren 1311dbae815STony Lindgrenconfig MACH_OMAP_GENERIC 1328d61649dSBenoit Cousson bool "Generic OMAP2+ board" 133f558b275STony Lindgren depends on ARCH_OMAP2PLUS 134ffb63e34STony Lindgren default y 1358d61649dSBenoit Cousson help 1368d61649dSBenoit Cousson Support for generic TI OMAP2+ boards using Flattened Device Tree. 1378d61649dSBenoit Cousson More information at Documentation/devicetree 1381dbae815STony Lindgren 1391b52d5dfSKalle Valoconfig MACH_OMAP2_TUSB6010 1401b52d5dfSKalle Valo bool 14159b479e0STony Lindgren depends on ARCH_OMAP2 && SOC_OMAP2420 1421b52d5dfSKalle Valo default y if MACH_NOKIA_N8X0 1431b52d5dfSKalle Valo 1441dbae815STony Lindgrenconfig MACH_OMAP_H4 1451dbae815STony Lindgren bool "OMAP 2420 H4 board" 14659b479e0STony Lindgren depends on SOC_OMAP2420 147ffb63e34STony Lindgren default y 14823275d45STony Lindgren select OMAP_PACKAGE_ZAF 149f6049312SDavid Brownell select OMAP_DEBUG_DEVICES 1501dbae815STony Lindgren 1519b6553cdSTony Lindgrenconfig MACH_OMAP_APOLLON 1529b6553cdSTony Lindgren bool "OMAP 2420 Apollon board" 15359b479e0STony Lindgren depends on SOC_OMAP2420 154ffb63e34STony Lindgren default y 155b52b14efSTony Lindgren select OMAP_PACKAGE_ZAC 15672d0f1c3SSyed Mohammed Khasim 15772d0f1c3SSyed Mohammed Khasimconfig MACH_OMAP_2430SDP 15872d0f1c3SSyed Mohammed Khasim bool "OMAP 2430 SDP board" 15959b479e0STony Lindgren depends on SOC_OMAP2430 160ffb63e34STony Lindgren default y 161369ed78fSTony Lindgren select OMAP_PACKAGE_ZAC 16272d0f1c3SSyed Mohammed Khasim 1632885f000SSyed Mohammed, Khasimconfig MACH_OMAP3_BEAGLE 1642885f000SSyed Mohammed, Khasim bool "OMAP3 BEAGLE board" 165a8eb7ca0STony Lindgren depends on ARCH_OMAP3 166ffb63e34STony Lindgren default y 167ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 1682885f000SSyed Mohammed, Khasim 169476544caSThomas Weberconfig MACH_DEVKIT8000 170476544caSThomas Weber bool "DEVKIT8000 board" 171476544caSThomas Weber depends on ARCH_OMAP3 172ffb63e34STony Lindgren default y 17351824c5fSThomas Weber select OMAP_PACKAGE_CUS 174476544caSThomas Weber 17549265651SNishant Kamatconfig MACH_OMAP_LDP 17649265651SNishant Kamat bool "OMAP3 LDP board" 177a8eb7ca0STony Lindgren depends on ARCH_OMAP3 178ffb63e34STony Lindgren default y 179ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 18049265651SNishant Kamat 181d40f3f15STim Nordellconfig MACH_OMAP3530_LV_SOM 182d40f3f15STim Nordell bool "OMAP3 Logic 3530 LV SOM board" 183d40f3f15STim Nordell depends on ARCH_OMAP3 184d40f3f15STim Nordell select OMAP_PACKAGE_CBB 185d40f3f15STim Nordell default y 186d40f3f15STim Nordell help 187d40f3f15STim Nordell Support for the LogicPD OMAP3530 SOM Development kit 188d40f3f15STim Nordell for full description please see the products webpage at 189d40f3f15STim Nordell http://www.logicpd.com/products/development-kits/texas-instruments-zoom%E2%84%A2-omap35x-development-kit 190d40f3f15STim Nordell 191d40f3f15STim Nordellconfig MACH_OMAP3_TORPEDO 192d40f3f15STim Nordell bool "OMAP3 Logic 35x Torpedo board" 193d40f3f15STim Nordell depends on ARCH_OMAP3 194d40f3f15STim Nordell select OMAP_PACKAGE_CBB 195d40f3f15STim Nordell default y 196d40f3f15STim Nordell help 197d40f3f15STim Nordell Support for the LogicPD OMAP35x Torpedo Development kit 198d40f3f15STim Nordell for full description please see the products webpage at 199d40f3f15STim Nordell http://www.logicpd.com/products/development-kits/zoom-omap35x-torpedo-development-kit 200d40f3f15STim Nordell 201eba2645aSSteve Sakomanconfig MACH_OVERO 202eba2645aSSteve Sakoman bool "Gumstix Overo board" 203a8eb7ca0STony Lindgren depends on ARCH_OMAP3 204ffb63e34STony Lindgren default y 205ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 206da177247SGrazvydas Ignotas 20753c5ec31SSyed Mohammed Khasimconfig MACH_OMAP3EVM 20853c5ec31SSyed Mohammed Khasim bool "OMAP 3530 EVM board" 209a8eb7ca0STony Lindgren depends on ARCH_OMAP3 210ffb63e34STony Lindgren default y 211342aa2c1SVaibhav Hiremath select OMAP_PACKAGE_CBB 21253c5ec31SSyed Mohammed Khasim 213c625327eSRanjith Lohithakshanconfig MACH_OMAP3517EVM 214c625327eSRanjith Lohithakshan bool "OMAP3517/ AM3517 EVM board" 215a8eb7ca0STony Lindgren depends on ARCH_OMAP3 216ffb63e34STony Lindgren default y 217ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 218c625327eSRanjith Lohithakshan 2191cb125caSSrinathconfig MACH_CRANEBOARD 2201cb125caSSrinath bool "AM3517/05 CRANE board" 2211cb125caSSrinath depends on ARCH_OMAP3 2221cb125caSSrinath select OMAP_PACKAGE_CBB 2231cb125caSSrinath 224da177247SGrazvydas Ignotasconfig MACH_OMAP3_PANDORA 225da177247SGrazvydas Ignotas bool "OMAP3 Pandora" 226a8eb7ca0STony Lindgren depends on ARCH_OMAP3 227ffb63e34STony Lindgren default y 228ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 229a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 2306fdc29e2SSyed Mohammed Khasim 2317a079cabSGregoire Gentilconfig MACH_OMAP3_TOUCHBOOK 2327a079cabSGregoire Gentil bool "OMAP3 Touch Book" 233a8eb7ca0STony Lindgren depends on ARCH_OMAP3 234ffb63e34STony Lindgren default y 2357a079cabSGregoire Gentil 2366fdc29e2SSyed Mohammed Khasimconfig MACH_OMAP_3430SDP 2376fdc29e2SSyed Mohammed Khasim bool "OMAP 3430 SDP board" 238a8eb7ca0STony Lindgren depends on ARCH_OMAP3 239ffb63e34STony Lindgren default y 240ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 241ffe7f95bSLauri Leukkunen 242d2fbf345STony Lindgrenconfig MACH_NOKIA_N800 243d2fbf345STony Lindgren bool 244d2fbf345STony Lindgren 245d2fbf345STony Lindgrenconfig MACH_NOKIA_N810 246d2fbf345STony Lindgren bool 247d2fbf345STony Lindgren 248d2fbf345STony Lindgrenconfig MACH_NOKIA_N810_WIMAX 249d2fbf345STony Lindgren bool 250d2fbf345STony Lindgren 25163138812SKalle Valoconfig MACH_NOKIA_N8X0 25263138812SKalle Valo bool "Nokia N800/N810" 25359b479e0STony Lindgren depends on SOC_OMAP2420 254ffb63e34STony Lindgren default y 255bd8f0fc9STony Lindgren select OMAP_PACKAGE_ZAC 256d2fbf345STony Lindgren select MACH_NOKIA_N800 257d2fbf345STony Lindgren select MACH_NOKIA_N810 258d2fbf345STony Lindgren select MACH_NOKIA_N810_WIMAX 25963138812SKalle Valo 2602d200665SAaro Koskinenconfig MACH_NOKIA_RM680 26163fc5f3bSAaro Koskinen bool "Nokia RM-680/696 board" 2622d200665SAaro Koskinen depends on ARCH_OMAP3 2632d200665SAaro Koskinen default y 2642d200665SAaro Koskinen select OMAP_PACKAGE_CBB 26563fc5f3bSAaro Koskinen select MACH_NOKIA_RM696 2662d200665SAaro Koskinen 267ffe7f95bSLauri Leukkunenconfig MACH_NOKIA_RX51 268ffe7f95bSLauri Leukkunen bool "Nokia RX-51 board" 269a8eb7ca0STony Lindgren depends on ARCH_OMAP3 270ffb63e34STony Lindgren default y 271ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 272577145f4SVikram Pandita 273577145f4SVikram Panditaconfig MACH_OMAP_ZOOM2 274577145f4SVikram Pandita bool "OMAP3 Zoom2 board" 275a8eb7ca0STony Lindgren depends on ARCH_OMAP3 276ffb63e34STony Lindgren default y 277ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 27812a75da2SGovindraj.R select SERIAL_8250 27912a75da2SGovindraj.R select SERIAL_CORE_CONSOLE 28012a75da2SGovindraj.R select SERIAL_8250_CONSOLE 281a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 28246ba0abfSSantosh Shilimkar 2835f35fbe8Svikram panditaconfig MACH_OMAP_ZOOM3 2845f35fbe8Svikram pandita bool "OMAP3630 Zoom3 board" 285a8eb7ca0STony Lindgren depends on ARCH_OMAP3 286ffb63e34STony Lindgren default y 287662c8b55STony Lindgren select OMAP_PACKAGE_CBP 28812a75da2SGovindraj.R select SERIAL_8250 28912a75da2SGovindraj.R select SERIAL_CORE_CONSOLE 29012a75da2SGovindraj.R select SERIAL_8250_CONSOLE 291a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 2925f35fbe8Svikram pandita 2932886d128SMike Rapoportconfig MACH_CM_T35 294c3146974SIgor Grinberg bool "CompuLab CM-T35/CM-T3730 modules" 295a8eb7ca0STony Lindgren depends on ARCH_OMAP3 296ffb63e34STony Lindgren default y 297c3146974SIgor Grinberg select MACH_CM_T3730 298ca5742bdSTony Lindgren select OMAP_PACKAGE_CUS 2992886d128SMike Rapoport 300d04b620eSIgor Grinbergconfig MACH_CM_T3517 301d04b620eSIgor Grinberg bool "CompuLab CM-T3517 module" 302d04b620eSIgor Grinberg depends on ARCH_OMAP3 303d04b620eSIgor Grinberg default y 304d04b620eSIgor Grinberg select OMAP_PACKAGE_CBB 305d04b620eSIgor Grinberg 306c3146974SIgor Grinbergconfig MACH_CM_T3730 307c3146974SIgor Grinberg bool 308c3146974SIgor Grinberg 30958e11162SEnric Balletbo i Serraconfig MACH_IGEP0020 31028e0f13cSEnric Balletbo i Serra bool "IGEP v2 board" 311a8eb7ca0STony Lindgren depends on ARCH_OMAP3 312ffb63e34STony Lindgren default y 313ca5742bdSTony Lindgren select OMAP_PACKAGE_CBB 31458e11162SEnric Balletbo i Serra 315e844b1daSEnric Balletbo i Serraconfig MACH_IGEP0030 316e844b1daSEnric Balletbo i Serra bool "IGEP OMAP3 module" 317e844b1daSEnric Balletbo i Serra depends on ARCH_OMAP3 318e844b1daSEnric Balletbo i Serra default y 319e844b1daSEnric Balletbo i Serra select OMAP_PACKAGE_CBB 3207be13ad0SMike Rapoport select MACH_IGEP0020 321e844b1daSEnric Balletbo i Serra 3229cbc3493SJasonconfig MACH_SBC3530 3239cbc3493SJason bool "OMAP3 SBC STALKER board" 3249cbc3493SJason depends on ARCH_OMAP3 325ffb63e34STony Lindgren default y 3269cbc3493SJason select OMAP_PACKAGE_CUS 3279cbc3493SJason 32834c9ac23Svikram panditaconfig MACH_OMAP_3630SDP 32934c9ac23Svikram pandita bool "OMAP3630 SDP board" 330a8eb7ca0STony Lindgren depends on ARCH_OMAP3 331ffb63e34STony Lindgren default y 332662c8b55STony Lindgren select OMAP_PACKAGE_CBP 33334c9ac23Svikram pandita 3342c87fb2eSHemant Pedanekarconfig MACH_TI8168EVM 3352c87fb2eSHemant Pedanekar bool "TI8168 Evaluation Module" 33633959553SKevin Hilman depends on SOC_TI81XX 3372c87fb2eSHemant Pedanekar default y 3382c87fb2eSHemant Pedanekar 339a890b676SHemant Pedanekarconfig MACH_TI8148EVM 340a890b676SHemant Pedanekar bool "TI8148 Evaluation Module" 34133959553SKevin Hilman depends on SOC_TI81XX 342a890b676SHemant Pedanekar default y 343a890b676SHemant Pedanekar 34446ba0abfSSantosh Shilimkarconfig MACH_OMAP_4430SDP 34546ba0abfSSantosh Shilimkar bool "OMAP 4430 SDP board" 346ffb63e34STony Lindgren default y 34746ba0abfSSantosh Shilimkar depends on ARCH_OMAP4 348fb6bf632SBenoit Cousson select OMAP_PACKAGE_CBL 3496fea7b0aSBenoit Cousson select OMAP_PACKAGE_CBS 350a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 351183bd50fSAlexander Shishkin 352b075f58bSDavid Andersconfig MACH_OMAP4_PANDA 353b075f58bSDavid Anders bool "OMAP4 Panda Board" 354b075f58bSDavid Anders default y 355b075f58bSDavid Anders depends on ARCH_OMAP4 356fc63de82Ssricharan select OMAP_PACKAGE_CBL 357fc63de82Ssricharan select OMAP_PACKAGE_CBS 358a075ccc6SFelipe Contreras select REGULATOR_FIXED_VOLTAGE if REGULATOR 359b075f58bSDavid Anders 360183bd50fSAlexander Shishkinconfig OMAP3_EMU 361183bd50fSAlexander Shishkin bool "OMAP3 debugging peripherals" 362183bd50fSAlexander Shishkin depends on ARCH_OMAP3 363a8a6565cSMing Lei select ARM_AMBA 364183bd50fSAlexander Shishkin select OC_ETM 365183bd50fSAlexander Shishkin help 366183bd50fSAlexander Shishkin Say Y here to enable debugging hardware of omap3 367183bd50fSAlexander Shishkin 36818862cbeSPaul Walmsleyconfig OMAP3_SDRC_AC_TIMING 36918862cbeSPaul Walmsley bool "Enable SDRC AC timing register changes" 370a8eb7ca0STony Lindgren depends on ARCH_OMAP3 37118862cbeSPaul Walmsley default n 37218862cbeSPaul Walmsley help 37318862cbeSPaul Walmsley If you know that none of your system initiators will attempt to 37418862cbeSPaul Walmsley access SDRAM during CORE DVFS, select Y here. This should boost 37518862cbeSPaul Walmsley SDRAM performance at lower CORE OPPs. There are relatively few 37618862cbeSPaul Walmsley users who will wish to say yes at this point - almost everyone will 37718862cbeSPaul Walmsley wish to say no. Selecting yes without understanding what is 37818862cbeSPaul Walmsley going on could result in system crashes; 37918862cbeSPaul Walmsley 380137d105dSSantosh Shilimkarconfig OMAP4_ERRATA_I688 3812ec1fc4eSSantosh Shilimkar bool "OMAP4 errata: Async Bridge Corruption" 3822ec1fc4eSSantosh Shilimkar depends on ARCH_OMAP4 383137d105dSSantosh Shilimkar select ARCH_HAS_BARRIERS 384137d105dSSantosh Shilimkar help 385137d105dSSantosh Shilimkar If a data is stalled inside asynchronous bridge because of back 386137d105dSSantosh Shilimkar pressure, it may be accepted multiple times, creating pointer 387137d105dSSantosh Shilimkar misalignment that will corrupt next transfers on that data path 388137d105dSSantosh Shilimkar until next reset of the system (No recovery procedure once the 389137d105dSSantosh Shilimkar issue is hit, the path remains consistently broken). Async bridge 390137d105dSSantosh Shilimkar can be found on path between MPU to EMIF and MPU to L3 interconnect. 391137d105dSSantosh Shilimkar This situation can happen only when the idle is initiated by a 392137d105dSSantosh Shilimkar Master Request Disconnection (which is trigged by software when 393137d105dSSantosh Shilimkar executing WFI on CPU). 394137d105dSSantosh Shilimkar The work-around for this errata needs all the initiators connected 395137d105dSSantosh Shilimkar through async bridge must ensure that data path is properly drained 396137d105dSSantosh Shilimkar before issuing WFI. This condition will be met if one Strongly ordered 397137d105dSSantosh Shilimkar access is performed to the target right before executing the WFI. 398137d105dSSantosh Shilimkar In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained. 399137d105dSSantosh Shilimkar IO barrier ensure that there is no synchronisation loss on initiators 400137d105dSSantosh Shilimkar operating on both interconnect port simultaneously. 4014a54db61STony Lindgrenendmenu 4024a54db61STony Lindgren 4034a54db61STony Lindgrenendif 404