11da177e4SLinus Torvaldscomment "Processor Type" 21da177e4SLinus Torvalds 31da177e4SLinus Torvaldsconfig CPU_32 41da177e4SLinus Torvalds bool 51da177e4SLinus Torvalds default y 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds# Select CPU types depending on the architecture selected. This selects 81da177e4SLinus Torvalds# which CPUs we support in the kernel image, and the compiler instruction 91da177e4SLinus Torvalds# optimiser behaviour. 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds# ARM610 121da177e4SLinus Torvaldsconfig CPU_ARM610 131da177e4SLinus Torvalds bool "Support ARM610 processor" 141da177e4SLinus Torvalds depends on ARCH_RPC 151da177e4SLinus Torvalds select CPU_32v3 161da177e4SLinus Torvalds select CPU_CACHE_V3 171da177e4SLinus Torvalds select CPU_CACHE_VIVT 18fefdaa06SHyok S. Choi select CPU_CP15_MMU 19f9c21a6eSHyok S. Choi select CPU_COPY_V3 if MMU 20f9c21a6eSHyok S. Choi select CPU_TLB_V3 if MMU 2148d7927bSPaul Brook select CPU_PABRT_NOIFAR 221da177e4SLinus Torvalds help 231da177e4SLinus Torvalds The ARM610 is the successor to the ARM3 processor 241da177e4SLinus Torvalds and was produced by VLSI Technology Inc. 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds Say Y if you want support for the ARM610 processor. 271da177e4SLinus Torvalds Otherwise, say N. 281da177e4SLinus Torvalds 2907e0da78SHyok S. Choi# ARM7TDMI 3007e0da78SHyok S. Choiconfig CPU_ARM7TDMI 3107e0da78SHyok S. Choi bool "Support ARM7TDMI processor" 326b237a35SRussell King depends on !MMU 3307e0da78SHyok S. Choi select CPU_32v4T 3407e0da78SHyok S. Choi select CPU_ABRT_LV4T 354a1fd556SCatalin Marinas select CPU_PABRT_NOIFAR 3607e0da78SHyok S. Choi select CPU_CACHE_V4 3707e0da78SHyok S. Choi help 3807e0da78SHyok S. Choi A 32-bit RISC microprocessor based on the ARM7 processor core 3907e0da78SHyok S. Choi which has no memory control unit and cache. 4007e0da78SHyok S. Choi 4107e0da78SHyok S. Choi Say Y if you want support for the ARM7TDMI processor. 4207e0da78SHyok S. Choi Otherwise, say N. 4307e0da78SHyok S. Choi 441da177e4SLinus Torvalds# ARM710 451da177e4SLinus Torvaldsconfig CPU_ARM710 461da177e4SLinus Torvalds bool "Support ARM710 processor" if !ARCH_CLPS7500 && ARCH_RPC 471da177e4SLinus Torvalds default y if ARCH_CLPS7500 481da177e4SLinus Torvalds select CPU_32v3 491da177e4SLinus Torvalds select CPU_CACHE_V3 501da177e4SLinus Torvalds select CPU_CACHE_VIVT 51fefdaa06SHyok S. Choi select CPU_CP15_MMU 52f9c21a6eSHyok S. Choi select CPU_COPY_V3 if MMU 53f9c21a6eSHyok S. Choi select CPU_TLB_V3 if MMU 5448d7927bSPaul Brook select CPU_PABRT_NOIFAR 551da177e4SLinus Torvalds help 561da177e4SLinus Torvalds A 32-bit RISC microprocessor based on the ARM7 processor core 571da177e4SLinus Torvalds designed by Advanced RISC Machines Ltd. The ARM710 is the 581da177e4SLinus Torvalds successor to the ARM610 processor. It was released in 591da177e4SLinus Torvalds July 1994 by VLSI Technology Inc. 601da177e4SLinus Torvalds 611da177e4SLinus Torvalds Say Y if you want support for the ARM710 processor. 621da177e4SLinus Torvalds Otherwise, say N. 631da177e4SLinus Torvalds 641da177e4SLinus Torvalds# ARM720T 651da177e4SLinus Torvaldsconfig CPU_ARM720T 661da177e4SLinus Torvalds bool "Support ARM720T processor" if !ARCH_CLPS711X && !ARCH_L7200 && !ARCH_CDB89712 && ARCH_INTEGRATOR 671da177e4SLinus Torvalds default y if ARCH_CLPS711X || ARCH_L7200 || ARCH_CDB89712 || ARCH_H720X 68260e98edSLennert Buytenhek select CPU_32v4T 691da177e4SLinus Torvalds select CPU_ABRT_LV4T 7048d7927bSPaul Brook select CPU_PABRT_NOIFAR 711da177e4SLinus Torvalds select CPU_CACHE_V4 721da177e4SLinus Torvalds select CPU_CACHE_VIVT 73fefdaa06SHyok S. Choi select CPU_CP15_MMU 74f9c21a6eSHyok S. Choi select CPU_COPY_V4WT if MMU 75f9c21a6eSHyok S. Choi select CPU_TLB_V4WT if MMU 761da177e4SLinus Torvalds help 771da177e4SLinus Torvalds A 32-bit RISC processor with 8kByte Cache, Write Buffer and 781da177e4SLinus Torvalds MMU built around an ARM7TDMI core. 791da177e4SLinus Torvalds 801da177e4SLinus Torvalds Say Y if you want support for the ARM720T processor. 811da177e4SLinus Torvalds Otherwise, say N. 821da177e4SLinus Torvalds 83b731c311SHyok S. Choi# ARM740T 84b731c311SHyok S. Choiconfig CPU_ARM740T 85b731c311SHyok S. Choi bool "Support ARM740T processor" if ARCH_INTEGRATOR 866b237a35SRussell King depends on !MMU 87b731c311SHyok S. Choi select CPU_32v4T 88b731c311SHyok S. Choi select CPU_ABRT_LV4T 894a1fd556SCatalin Marinas select CPU_PABRT_NOIFAR 90b731c311SHyok S. Choi select CPU_CACHE_V3 # although the core is v4t 91b731c311SHyok S. Choi select CPU_CP15_MPU 92b731c311SHyok S. Choi help 93b731c311SHyok S. Choi A 32-bit RISC processor with 8KB cache or 4KB variants, 94b731c311SHyok S. Choi write buffer and MPU(Protection Unit) built around 95b731c311SHyok S. Choi an ARM7TDMI core. 96b731c311SHyok S. Choi 97b731c311SHyok S. Choi Say Y if you want support for the ARM740T processor. 98b731c311SHyok S. Choi Otherwise, say N. 99b731c311SHyok S. Choi 10043f5f014SHyok S. Choi# ARM9TDMI 10143f5f014SHyok S. Choiconfig CPU_ARM9TDMI 10243f5f014SHyok S. Choi bool "Support ARM9TDMI processor" 1036b237a35SRussell King depends on !MMU 10443f5f014SHyok S. Choi select CPU_32v4T 1050f45d7f3SHyok S. Choi select CPU_ABRT_NOMMU 1064a1fd556SCatalin Marinas select CPU_PABRT_NOIFAR 10743f5f014SHyok S. Choi select CPU_CACHE_V4 10843f5f014SHyok S. Choi help 10943f5f014SHyok S. Choi A 32-bit RISC microprocessor based on the ARM9 processor core 11043f5f014SHyok S. Choi which has no memory control unit and cache. 11143f5f014SHyok S. Choi 11243f5f014SHyok S. Choi Say Y if you want support for the ARM9TDMI processor. 11343f5f014SHyok S. Choi Otherwise, say N. 11443f5f014SHyok S. Choi 1151da177e4SLinus Torvalds# ARM920T 1161da177e4SLinus Torvaldsconfig CPU_ARM920T 1173434d9d9SBen Dooks bool "Support ARM920T processor" 1183434d9d9SBen Dooks depends on ARCH_EP93XX || ARCH_INTEGRATOR || CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_IMX || ARCH_AAEC2000 || ARCH_AT91RM9200 1193434d9d9SBen Dooks default y if CPU_S3C2410 || CPU_S3C2440 || CPU_S3C2442 || ARCH_AT91RM9200 120260e98edSLennert Buytenhek select CPU_32v4T 1211da177e4SLinus Torvalds select CPU_ABRT_EV4T 12248d7927bSPaul Brook select CPU_PABRT_NOIFAR 1231da177e4SLinus Torvalds select CPU_CACHE_V4WT 1241da177e4SLinus Torvalds select CPU_CACHE_VIVT 125fefdaa06SHyok S. Choi select CPU_CP15_MMU 126f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU 127f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 1281da177e4SLinus Torvalds help 1291da177e4SLinus Torvalds The ARM920T is licensed to be produced by numerous vendors, 1301da177e4SLinus Torvalds and is used in the Maverick EP9312 and the Samsung S3C2410. 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds More information on the Maverick EP9312 at 1331da177e4SLinus Torvalds <http://linuxdevices.com/products/PD2382866068.html>. 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds Say Y if you want support for the ARM920T processor. 1361da177e4SLinus Torvalds Otherwise, say N. 1371da177e4SLinus Torvalds 1381da177e4SLinus Torvalds# ARM922T 1391da177e4SLinus Torvaldsconfig CPU_ARM922T 1401da177e4SLinus Torvalds bool "Support ARM922T processor" if ARCH_INTEGRATOR 141c53c9cf6SAndrew Victor depends on ARCH_LH7A40X || ARCH_INTEGRATOR || ARCH_KS8695 142c53c9cf6SAndrew Victor default y if ARCH_LH7A40X || ARCH_KS8695 143260e98edSLennert Buytenhek select CPU_32v4T 1441da177e4SLinus Torvalds select CPU_ABRT_EV4T 14548d7927bSPaul Brook select CPU_PABRT_NOIFAR 1461da177e4SLinus Torvalds select CPU_CACHE_V4WT 1471da177e4SLinus Torvalds select CPU_CACHE_VIVT 148fefdaa06SHyok S. Choi select CPU_CP15_MMU 149f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU 150f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 1511da177e4SLinus Torvalds help 1521da177e4SLinus Torvalds The ARM922T is a version of the ARM920T, but with smaller 1531da177e4SLinus Torvalds instruction and data caches. It is used in Altera's 154c53c9cf6SAndrew Victor Excalibur XA device family and Micrel's KS8695 Centaur. 1551da177e4SLinus Torvalds 1561da177e4SLinus Torvalds Say Y if you want support for the ARM922T processor. 1571da177e4SLinus Torvalds Otherwise, say N. 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds# ARM925T 1601da177e4SLinus Torvaldsconfig CPU_ARM925T 161b288f75fSTony Lindgren bool "Support ARM925T processor" if ARCH_OMAP1 1623179a019STony Lindgren depends on ARCH_OMAP15XX 1633179a019STony Lindgren default y if ARCH_OMAP15XX 164260e98edSLennert Buytenhek select CPU_32v4T 1651da177e4SLinus Torvalds select CPU_ABRT_EV4T 16648d7927bSPaul Brook select CPU_PABRT_NOIFAR 1671da177e4SLinus Torvalds select CPU_CACHE_V4WT 1681da177e4SLinus Torvalds select CPU_CACHE_VIVT 169fefdaa06SHyok S. Choi select CPU_CP15_MMU 170f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU 171f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 1721da177e4SLinus Torvalds help 1731da177e4SLinus Torvalds The ARM925T is a mix between the ARM920T and ARM926T, but with 1741da177e4SLinus Torvalds different instruction and data caches. It is used in TI's OMAP 1751da177e4SLinus Torvalds device family. 1761da177e4SLinus Torvalds 1771da177e4SLinus Torvalds Say Y if you want support for the ARM925T processor. 1781da177e4SLinus Torvalds Otherwise, say N. 1791da177e4SLinus Torvalds 1801da177e4SLinus Torvalds# ARM926T 1811da177e4SLinus Torvaldsconfig CPU_ARM926T 1828ad68bbfSCatalin Marinas bool "Support ARM926T processor" 1832b3b3516SAndrew Victor depends on ARCH_INTEGRATOR || ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || MACH_REALVIEW_EB || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI 1842b3b3516SAndrew Victor default y if ARCH_VERSATILE_PB || MACH_VERSATILE_AB || ARCH_OMAP730 || ARCH_OMAP16XX || ARCH_PNX4008 || ARCH_NETX || CPU_S3C2412 || ARCH_AT91SAM9260 || ARCH_AT91SAM9261 || ARCH_AT91SAM9263 || ARCH_AT91SAM9RL || ARCH_AT91CAP9 || ARCH_NS9XXX || ARCH_DAVINCI 1851da177e4SLinus Torvalds select CPU_32v5 1861da177e4SLinus Torvalds select CPU_ABRT_EV5TJ 18748d7927bSPaul Brook select CPU_PABRT_NOIFAR 1881da177e4SLinus Torvalds select CPU_CACHE_VIVT 189fefdaa06SHyok S. Choi select CPU_CP15_MMU 190f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU 191f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 1921da177e4SLinus Torvalds help 1931da177e4SLinus Torvalds This is a variant of the ARM920. It has slightly different 1941da177e4SLinus Torvalds instruction sequences for cache and TLB operations. Curiously, 1951da177e4SLinus Torvalds there is no documentation on it at the ARM corporate website. 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds Say Y if you want support for the ARM926T processor. 1981da177e4SLinus Torvalds Otherwise, say N. 1991da177e4SLinus Torvalds 200d60674ebSHyok S. Choi# ARM940T 201d60674ebSHyok S. Choiconfig CPU_ARM940T 202d60674ebSHyok S. Choi bool "Support ARM940T processor" if ARCH_INTEGRATOR 2036b237a35SRussell King depends on !MMU 204d60674ebSHyok S. Choi select CPU_32v4T 2050f45d7f3SHyok S. Choi select CPU_ABRT_NOMMU 2064a1fd556SCatalin Marinas select CPU_PABRT_NOIFAR 207d60674ebSHyok S. Choi select CPU_CACHE_VIVT 208d60674ebSHyok S. Choi select CPU_CP15_MPU 209d60674ebSHyok S. Choi help 210d60674ebSHyok S. Choi ARM940T is a member of the ARM9TDMI family of general- 2113cb2fcccSMatt LaPlante purpose microprocessors with MPU and separate 4KB 212d60674ebSHyok S. Choi instruction and 4KB data cases, each with a 4-word line 213d60674ebSHyok S. Choi length. 214d60674ebSHyok S. Choi 215d60674ebSHyok S. Choi Say Y if you want support for the ARM940T processor. 216d60674ebSHyok S. Choi Otherwise, say N. 217d60674ebSHyok S. Choi 218f37f46ebSHyok S. Choi# ARM946E-S 219f37f46ebSHyok S. Choiconfig CPU_ARM946E 220f37f46ebSHyok S. Choi bool "Support ARM946E-S processor" if ARCH_INTEGRATOR 2216b237a35SRussell King depends on !MMU 222f37f46ebSHyok S. Choi select CPU_32v5 2230f45d7f3SHyok S. Choi select CPU_ABRT_NOMMU 2244a1fd556SCatalin Marinas select CPU_PABRT_NOIFAR 225f37f46ebSHyok S. Choi select CPU_CACHE_VIVT 226f37f46ebSHyok S. Choi select CPU_CP15_MPU 227f37f46ebSHyok S. Choi help 228f37f46ebSHyok S. Choi ARM946E-S is a member of the ARM9E-S family of high- 229f37f46ebSHyok S. Choi performance, 32-bit system-on-chip processor solutions. 230f37f46ebSHyok S. Choi The TCM and ARMv5TE 32-bit instruction set is supported. 231f37f46ebSHyok S. Choi 232f37f46ebSHyok S. Choi Say Y if you want support for the ARM946E-S processor. 233f37f46ebSHyok S. Choi Otherwise, say N. 234f37f46ebSHyok S. Choi 2351da177e4SLinus Torvalds# ARM1020 - needs validating 2361da177e4SLinus Torvaldsconfig CPU_ARM1020 2371da177e4SLinus Torvalds bool "Support ARM1020T (rev 0) processor" 2381da177e4SLinus Torvalds depends on ARCH_INTEGRATOR 2391da177e4SLinus Torvalds select CPU_32v5 2401da177e4SLinus Torvalds select CPU_ABRT_EV4T 24148d7927bSPaul Brook select CPU_PABRT_NOIFAR 2421da177e4SLinus Torvalds select CPU_CACHE_V4WT 2431da177e4SLinus Torvalds select CPU_CACHE_VIVT 244fefdaa06SHyok S. Choi select CPU_CP15_MMU 245f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU 246f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 2471da177e4SLinus Torvalds help 2481da177e4SLinus Torvalds The ARM1020 is the 32K cached version of the ARM10 processor, 2491da177e4SLinus Torvalds with an addition of a floating-point unit. 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds Say Y if you want support for the ARM1020 processor. 2521da177e4SLinus Torvalds Otherwise, say N. 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds# ARM1020E - needs validating 2551da177e4SLinus Torvaldsconfig CPU_ARM1020E 2561da177e4SLinus Torvalds bool "Support ARM1020E processor" 2571da177e4SLinus Torvalds depends on ARCH_INTEGRATOR 2581da177e4SLinus Torvalds select CPU_32v5 2591da177e4SLinus Torvalds select CPU_ABRT_EV4T 26048d7927bSPaul Brook select CPU_PABRT_NOIFAR 2611da177e4SLinus Torvalds select CPU_CACHE_V4WT 2621da177e4SLinus Torvalds select CPU_CACHE_VIVT 263fefdaa06SHyok S. Choi select CPU_CP15_MMU 264f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU 265f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 2661da177e4SLinus Torvalds depends on n 2671da177e4SLinus Torvalds 2681da177e4SLinus Torvalds# ARM1022E 2691da177e4SLinus Torvaldsconfig CPU_ARM1022 2701da177e4SLinus Torvalds bool "Support ARM1022E processor" 2711da177e4SLinus Torvalds depends on ARCH_INTEGRATOR 2721da177e4SLinus Torvalds select CPU_32v5 2731da177e4SLinus Torvalds select CPU_ABRT_EV4T 27448d7927bSPaul Brook select CPU_PABRT_NOIFAR 2751da177e4SLinus Torvalds select CPU_CACHE_VIVT 276fefdaa06SHyok S. Choi select CPU_CP15_MMU 277f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU # can probably do better 278f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 2791da177e4SLinus Torvalds help 2801da177e4SLinus Torvalds The ARM1022E is an implementation of the ARMv5TE architecture 2811da177e4SLinus Torvalds based upon the ARM10 integer core with a 16KiB L1 Harvard cache, 2821da177e4SLinus Torvalds embedded trace macrocell, and a floating-point unit. 2831da177e4SLinus Torvalds 2841da177e4SLinus Torvalds Say Y if you want support for the ARM1022E processor. 2851da177e4SLinus Torvalds Otherwise, say N. 2861da177e4SLinus Torvalds 2871da177e4SLinus Torvalds# ARM1026EJ-S 2881da177e4SLinus Torvaldsconfig CPU_ARM1026 2891da177e4SLinus Torvalds bool "Support ARM1026EJ-S processor" 2901da177e4SLinus Torvalds depends on ARCH_INTEGRATOR 2911da177e4SLinus Torvalds select CPU_32v5 2921da177e4SLinus Torvalds select CPU_ABRT_EV5T # But need Jazelle, but EV5TJ ignores bit 10 29348d7927bSPaul Brook select CPU_PABRT_NOIFAR 2941da177e4SLinus Torvalds select CPU_CACHE_VIVT 295fefdaa06SHyok S. Choi select CPU_CP15_MMU 296f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU # can probably do better 297f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 2981da177e4SLinus Torvalds help 2991da177e4SLinus Torvalds The ARM1026EJ-S is an implementation of the ARMv5TEJ architecture 3001da177e4SLinus Torvalds based upon the ARM10 integer core. 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds Say Y if you want support for the ARM1026EJ-S processor. 3031da177e4SLinus Torvalds Otherwise, say N. 3041da177e4SLinus Torvalds 3051da177e4SLinus Torvalds# SA110 3061da177e4SLinus Torvaldsconfig CPU_SA110 3071da177e4SLinus Torvalds bool "Support StrongARM(R) SA-110 processor" if !ARCH_EBSA110 && !FOOTBRIDGE && !ARCH_TBOX && !ARCH_SHARK && !ARCH_NEXUSPCI && ARCH_RPC 3081da177e4SLinus Torvalds default y if ARCH_EBSA110 || FOOTBRIDGE || ARCH_TBOX || ARCH_SHARK || ARCH_NEXUSPCI 3091da177e4SLinus Torvalds select CPU_32v3 if ARCH_RPC 3101da177e4SLinus Torvalds select CPU_32v4 if !ARCH_RPC 3111da177e4SLinus Torvalds select CPU_ABRT_EV4 31248d7927bSPaul Brook select CPU_PABRT_NOIFAR 3131da177e4SLinus Torvalds select CPU_CACHE_V4WB 3141da177e4SLinus Torvalds select CPU_CACHE_VIVT 315fefdaa06SHyok S. Choi select CPU_CP15_MMU 316f9c21a6eSHyok S. Choi select CPU_COPY_V4WB if MMU 317f9c21a6eSHyok S. Choi select CPU_TLB_V4WB if MMU 3181da177e4SLinus Torvalds help 3191da177e4SLinus Torvalds The Intel StrongARM(R) SA-110 is a 32-bit microprocessor and 3201da177e4SLinus Torvalds is available at five speeds ranging from 100 MHz to 233 MHz. 3211da177e4SLinus Torvalds More information is available at 3221da177e4SLinus Torvalds <http://developer.intel.com/design/strong/sa110.htm>. 3231da177e4SLinus Torvalds 3241da177e4SLinus Torvalds Say Y if you want support for the SA-110 processor. 3251da177e4SLinus Torvalds Otherwise, say N. 3261da177e4SLinus Torvalds 3271da177e4SLinus Torvalds# SA1100 3281da177e4SLinus Torvaldsconfig CPU_SA1100 3291da177e4SLinus Torvalds bool 3301da177e4SLinus Torvalds depends on ARCH_SA1100 3311da177e4SLinus Torvalds default y 3321da177e4SLinus Torvalds select CPU_32v4 3331da177e4SLinus Torvalds select CPU_ABRT_EV4 33448d7927bSPaul Brook select CPU_PABRT_NOIFAR 3351da177e4SLinus Torvalds select CPU_CACHE_V4WB 3361da177e4SLinus Torvalds select CPU_CACHE_VIVT 337fefdaa06SHyok S. Choi select CPU_CP15_MMU 338f9c21a6eSHyok S. Choi select CPU_TLB_V4WB if MMU 3391da177e4SLinus Torvalds 3401da177e4SLinus Torvalds# XScale 3411da177e4SLinus Torvaldsconfig CPU_XSCALE 3421da177e4SLinus Torvalds bool 343fa0b6251SRussell King depends on ARCH_IOP32X || ARCH_IOP33X || PXA25x || PXA27x || ARCH_IXP4XX || ARCH_IXP2000 3441da177e4SLinus Torvalds default y 3451da177e4SLinus Torvalds select CPU_32v5 3461da177e4SLinus Torvalds select CPU_ABRT_EV5T 34748d7927bSPaul Brook select CPU_PABRT_NOIFAR 3481da177e4SLinus Torvalds select CPU_CACHE_VIVT 349fefdaa06SHyok S. Choi select CPU_CP15_MMU 350f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 3511da177e4SLinus Torvalds 35223bdf86aSLennert Buytenhek# XScale Core Version 3 35323bdf86aSLennert Buytenhekconfig CPU_XSC3 35423bdf86aSLennert Buytenhek bool 3552c8086a5Seric miao depends on ARCH_IXP23XX || ARCH_IOP13XX || PXA3xx 35623bdf86aSLennert Buytenhek default y 35723bdf86aSLennert Buytenhek select CPU_32v5 35823bdf86aSLennert Buytenhek select CPU_ABRT_EV5T 3594a1fd556SCatalin Marinas select CPU_PABRT_NOIFAR 36023bdf86aSLennert Buytenhek select CPU_CACHE_VIVT 361fefdaa06SHyok S. Choi select CPU_CP15_MMU 362f9c21a6eSHyok S. Choi select CPU_TLB_V4WBI if MMU 36323bdf86aSLennert Buytenhek select IO_36 36423bdf86aSLennert Buytenhek 365e50d6409SAssaf Hoffman# Feroceon 366e50d6409SAssaf Hoffmanconfig CPU_FEROCEON 367e50d6409SAssaf Hoffman bool 368*794d15b2SStanislav Samsonov depends on ARCH_ORION5X || ARCH_LOKI || ARCH_KIRKWOOD || ARCH_MV78XX0 369e50d6409SAssaf Hoffman default y 370e50d6409SAssaf Hoffman select CPU_32v5 371e50d6409SAssaf Hoffman select CPU_ABRT_EV5T 37248d7927bSPaul Brook select CPU_PABRT_NOIFAR 373e50d6409SAssaf Hoffman select CPU_CACHE_VIVT 374e50d6409SAssaf Hoffman select CPU_CP15_MMU 3750ed15071SLennert Buytenhek select CPU_COPY_FEROCEON if MMU 37699c6dc11SLennert Buytenhek select CPU_TLB_FEROCEON if MMU 377e50d6409SAssaf Hoffman 378d910a0aaSTzachi Perelsteinconfig CPU_FEROCEON_OLD_ID 379d910a0aaSTzachi Perelstein bool "Accept early Feroceon cores with an ARM926 ID" 380d910a0aaSTzachi Perelstein depends on CPU_FEROCEON && !CPU_ARM926T 381d910a0aaSTzachi Perelstein default y 382d910a0aaSTzachi Perelstein help 383d910a0aaSTzachi Perelstein This enables the usage of some old Feroceon cores 384d910a0aaSTzachi Perelstein for which the CPU ID is equal to the ARM926 ID. 385d910a0aaSTzachi Perelstein Relevant for Feroceon-1850 and early Feroceon-2850. 386d910a0aaSTzachi Perelstein 3871da177e4SLinus Torvalds# ARMv6 3881da177e4SLinus Torvaldsconfig CPU_V6 3891da177e4SLinus Torvalds bool "Support ARM V6 processor" 390bc02c58bSBahadir Balban depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB || ARCH_OMAP2 || ARCH_MX3 || ARCH_MSM7X00A || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 39152c543f9SQuinn Jensen default y if ARCH_MX3 3923042102aSBrian Swetland default y if ARCH_MSM7X00A 3931da177e4SLinus Torvalds select CPU_32v6 3941da177e4SLinus Torvalds select CPU_ABRT_EV6 39548d7927bSPaul Brook select CPU_PABRT_NOIFAR 3961da177e4SLinus Torvalds select CPU_CACHE_V6 3971da177e4SLinus Torvalds select CPU_CACHE_VIPT 398fefdaa06SHyok S. Choi select CPU_CP15_MMU 3997b4c965aSCatalin Marinas select CPU_HAS_ASID if MMU 400f9c21a6eSHyok S. Choi select CPU_COPY_V6 if MMU 401f9c21a6eSHyok S. Choi select CPU_TLB_V6 if MMU 4021da177e4SLinus Torvalds 4034a5f79e7SRussell King# ARMv6k 4044a5f79e7SRussell Kingconfig CPU_32v6K 4054a5f79e7SRussell King bool "Support ARM V6K processor extensions" if !SMP 4064a5f79e7SRussell King depends on CPU_V6 40752c543f9SQuinn Jensen default y if SMP && !ARCH_MX3 4084a5f79e7SRussell King help 4094a5f79e7SRussell King Say Y here if your ARMv6 processor supports the 'K' extension. 4104a5f79e7SRussell King This enables the kernel to use some instructions not present 4114a5f79e7SRussell King on previous processors, and as such a kernel build with this 4124a5f79e7SRussell King enabled will not boot on processors with do not support these 4134a5f79e7SRussell King instructions. 4144a5f79e7SRussell King 41523688e99SCatalin Marinas# ARMv7 41623688e99SCatalin Marinasconfig CPU_V7 41723688e99SCatalin Marinas bool "Support ARM V7 processor" 41841267e20SCatalin Marinas depends on ARCH_INTEGRATOR || MACH_REALVIEW_EB 41923688e99SCatalin Marinas select CPU_32v6K 42023688e99SCatalin Marinas select CPU_32v7 42123688e99SCatalin Marinas select CPU_ABRT_EV7 42248d7927bSPaul Brook select CPU_PABRT_IFAR 42323688e99SCatalin Marinas select CPU_CACHE_V7 42423688e99SCatalin Marinas select CPU_CACHE_VIPT 42523688e99SCatalin Marinas select CPU_CP15_MMU 4262eb8c82bSCatalin Marinas select CPU_HAS_ASID if MMU 42723688e99SCatalin Marinas select CPU_COPY_V6 if MMU 4282ccdd1e7SCatalin Marinas select CPU_TLB_V7 if MMU 42923688e99SCatalin Marinas 4301da177e4SLinus Torvalds# Figure out what processor architecture version we should be using. 4311da177e4SLinus Torvalds# This defines the compiler instruction set which depends on the machine type. 4321da177e4SLinus Torvaldsconfig CPU_32v3 4331da177e4SLinus Torvalds bool 43460b6cf68SRussell King select TLS_REG_EMUL if SMP || !MMU 43548fa14f7SRussell King select NEEDS_SYSCALL_FOR_CMPXCHG if SMP 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvaldsconfig CPU_32v4 4381da177e4SLinus Torvalds bool 43960b6cf68SRussell King select TLS_REG_EMUL if SMP || !MMU 44048fa14f7SRussell King select NEEDS_SYSCALL_FOR_CMPXCHG if SMP 4411da177e4SLinus Torvalds 442260e98edSLennert Buytenhekconfig CPU_32v4T 443260e98edSLennert Buytenhek bool 444260e98edSLennert Buytenhek select TLS_REG_EMUL if SMP || !MMU 445260e98edSLennert Buytenhek select NEEDS_SYSCALL_FOR_CMPXCHG if SMP 446260e98edSLennert Buytenhek 4471da177e4SLinus Torvaldsconfig CPU_32v5 4481da177e4SLinus Torvalds bool 44960b6cf68SRussell King select TLS_REG_EMUL if SMP || !MMU 45048fa14f7SRussell King select NEEDS_SYSCALL_FOR_CMPXCHG if SMP 4511da177e4SLinus Torvalds 4521da177e4SLinus Torvaldsconfig CPU_32v6 4531da177e4SLinus Torvalds bool 454367afaf8SCatalin Marinas select TLS_REG_EMUL if !CPU_32v6K && !MMU 4551da177e4SLinus Torvalds 45623688e99SCatalin Marinasconfig CPU_32v7 45723688e99SCatalin Marinas bool 45823688e99SCatalin Marinas 4591da177e4SLinus Torvalds# The abort model 4600f45d7f3SHyok S. Choiconfig CPU_ABRT_NOMMU 4610f45d7f3SHyok S. Choi bool 4620f45d7f3SHyok S. Choi 4631da177e4SLinus Torvaldsconfig CPU_ABRT_EV4 4641da177e4SLinus Torvalds bool 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvaldsconfig CPU_ABRT_EV4T 4671da177e4SLinus Torvalds bool 4681da177e4SLinus Torvalds 4691da177e4SLinus Torvaldsconfig CPU_ABRT_LV4T 4701da177e4SLinus Torvalds bool 4711da177e4SLinus Torvalds 4721da177e4SLinus Torvaldsconfig CPU_ABRT_EV5T 4731da177e4SLinus Torvalds bool 4741da177e4SLinus Torvalds 4751da177e4SLinus Torvaldsconfig CPU_ABRT_EV5TJ 4761da177e4SLinus Torvalds bool 4771da177e4SLinus Torvalds 4781da177e4SLinus Torvaldsconfig CPU_ABRT_EV6 4791da177e4SLinus Torvalds bool 4801da177e4SLinus Torvalds 48123688e99SCatalin Marinasconfig CPU_ABRT_EV7 48223688e99SCatalin Marinas bool 48323688e99SCatalin Marinas 48448d7927bSPaul Brookconfig CPU_PABRT_IFAR 48548d7927bSPaul Brook bool 48648d7927bSPaul Brook 48748d7927bSPaul Brookconfig CPU_PABRT_NOIFAR 48848d7927bSPaul Brook bool 48948d7927bSPaul Brook 4901da177e4SLinus Torvalds# The cache model 4911da177e4SLinus Torvaldsconfig CPU_CACHE_V3 4921da177e4SLinus Torvalds bool 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvaldsconfig CPU_CACHE_V4 4951da177e4SLinus Torvalds bool 4961da177e4SLinus Torvalds 4971da177e4SLinus Torvaldsconfig CPU_CACHE_V4WT 4981da177e4SLinus Torvalds bool 4991da177e4SLinus Torvalds 5001da177e4SLinus Torvaldsconfig CPU_CACHE_V4WB 5011da177e4SLinus Torvalds bool 5021da177e4SLinus Torvalds 5031da177e4SLinus Torvaldsconfig CPU_CACHE_V6 5041da177e4SLinus Torvalds bool 5051da177e4SLinus Torvalds 50623688e99SCatalin Marinasconfig CPU_CACHE_V7 50723688e99SCatalin Marinas bool 50823688e99SCatalin Marinas 5091da177e4SLinus Torvaldsconfig CPU_CACHE_VIVT 5101da177e4SLinus Torvalds bool 5111da177e4SLinus Torvalds 5121da177e4SLinus Torvaldsconfig CPU_CACHE_VIPT 5131da177e4SLinus Torvalds bool 5141da177e4SLinus Torvalds 515f9c21a6eSHyok S. Choiif MMU 5161da177e4SLinus Torvalds# The copy-page model 5171da177e4SLinus Torvaldsconfig CPU_COPY_V3 5181da177e4SLinus Torvalds bool 5191da177e4SLinus Torvalds 5201da177e4SLinus Torvaldsconfig CPU_COPY_V4WT 5211da177e4SLinus Torvalds bool 5221da177e4SLinus Torvalds 5231da177e4SLinus Torvaldsconfig CPU_COPY_V4WB 5241da177e4SLinus Torvalds bool 5251da177e4SLinus Torvalds 5260ed15071SLennert Buytenhekconfig CPU_COPY_FEROCEON 5270ed15071SLennert Buytenhek bool 5280ed15071SLennert Buytenhek 5291da177e4SLinus Torvaldsconfig CPU_COPY_V6 5301da177e4SLinus Torvalds bool 5311da177e4SLinus Torvalds 5321da177e4SLinus Torvalds# This selects the TLB model 5331da177e4SLinus Torvaldsconfig CPU_TLB_V3 5341da177e4SLinus Torvalds bool 5351da177e4SLinus Torvalds help 5361da177e4SLinus Torvalds ARM Architecture Version 3 TLB. 5371da177e4SLinus Torvalds 5381da177e4SLinus Torvaldsconfig CPU_TLB_V4WT 5391da177e4SLinus Torvalds bool 5401da177e4SLinus Torvalds help 5411da177e4SLinus Torvalds ARM Architecture Version 4 TLB with writethrough cache. 5421da177e4SLinus Torvalds 5431da177e4SLinus Torvaldsconfig CPU_TLB_V4WB 5441da177e4SLinus Torvalds bool 5451da177e4SLinus Torvalds help 5461da177e4SLinus Torvalds ARM Architecture Version 4 TLB with writeback cache. 5471da177e4SLinus Torvalds 5481da177e4SLinus Torvaldsconfig CPU_TLB_V4WBI 5491da177e4SLinus Torvalds bool 5501da177e4SLinus Torvalds help 5511da177e4SLinus Torvalds ARM Architecture Version 4 TLB with writeback cache and invalidate 5521da177e4SLinus Torvalds instruction cache entry. 5531da177e4SLinus Torvalds 55499c6dc11SLennert Buytenhekconfig CPU_TLB_FEROCEON 55599c6dc11SLennert Buytenhek bool 55699c6dc11SLennert Buytenhek help 55799c6dc11SLennert Buytenhek Feroceon TLB (v4wbi with non-outer-cachable page table walks). 55899c6dc11SLennert Buytenhek 5591da177e4SLinus Torvaldsconfig CPU_TLB_V6 5601da177e4SLinus Torvalds bool 5611da177e4SLinus Torvalds 5622ccdd1e7SCatalin Marinasconfig CPU_TLB_V7 5632ccdd1e7SCatalin Marinas bool 5642ccdd1e7SCatalin Marinas 565f9c21a6eSHyok S. Choiendif 566f9c21a6eSHyok S. Choi 567516793c6SRussell Kingconfig CPU_HAS_ASID 568516793c6SRussell King bool 569516793c6SRussell King help 570516793c6SRussell King This indicates whether the CPU has the ASID register; used to 571516793c6SRussell King tag TLB and possibly cache entries. 572516793c6SRussell King 573fefdaa06SHyok S. Choiconfig CPU_CP15 574fefdaa06SHyok S. Choi bool 575fefdaa06SHyok S. Choi help 576fefdaa06SHyok S. Choi Processor has the CP15 register. 577fefdaa06SHyok S. Choi 578fefdaa06SHyok S. Choiconfig CPU_CP15_MMU 579fefdaa06SHyok S. Choi bool 580fefdaa06SHyok S. Choi select CPU_CP15 581fefdaa06SHyok S. Choi help 582fefdaa06SHyok S. Choi Processor has the CP15 register, which has MMU related registers. 583fefdaa06SHyok S. Choi 584fefdaa06SHyok S. Choiconfig CPU_CP15_MPU 585fefdaa06SHyok S. Choi bool 586fefdaa06SHyok S. Choi select CPU_CP15 587fefdaa06SHyok S. Choi help 588fefdaa06SHyok S. Choi Processor has the CP15 register, which has MPU related registers. 589fefdaa06SHyok S. Choi 59023bdf86aSLennert Buytenhek# 59123bdf86aSLennert Buytenhek# CPU supports 36-bit I/O 59223bdf86aSLennert Buytenhek# 59323bdf86aSLennert Buytenhekconfig IO_36 59423bdf86aSLennert Buytenhek bool 59523bdf86aSLennert Buytenhek 5961da177e4SLinus Torvaldscomment "Processor Features" 5971da177e4SLinus Torvalds 5981da177e4SLinus Torvaldsconfig ARM_THUMB 5991da177e4SLinus Torvalds bool "Support Thumb user binaries" 600e50d6409SAssaf Hoffman depends on CPU_ARM720T || CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020 || CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || CPU_XSCALE || CPU_XSC3 || CPU_V6 || CPU_V7 || CPU_FEROCEON 6011da177e4SLinus Torvalds default y 6021da177e4SLinus Torvalds help 6031da177e4SLinus Torvalds Say Y if you want to include kernel support for running user space 6041da177e4SLinus Torvalds Thumb binaries. 6051da177e4SLinus Torvalds 6061da177e4SLinus Torvalds The Thumb instruction set is a compressed form of the standard ARM 6071da177e4SLinus Torvalds instruction set resulting in smaller binaries at the expense of 6081da177e4SLinus Torvalds slightly less efficient code. 6091da177e4SLinus Torvalds 6101da177e4SLinus Torvalds If you don't know what this all is, saying Y is a safe choice. 6111da177e4SLinus Torvalds 612d7f864beSCatalin Marinasconfig ARM_THUMBEE 613d7f864beSCatalin Marinas bool "Enable ThumbEE CPU extension" 614d7f864beSCatalin Marinas depends on CPU_V7 615d7f864beSCatalin Marinas help 616d7f864beSCatalin Marinas Say Y here if you have a CPU with the ThumbEE extension and code to 617d7f864beSCatalin Marinas make use of it. Say N for code that can run on CPUs without ThumbEE. 618d7f864beSCatalin Marinas 6191da177e4SLinus Torvaldsconfig CPU_BIG_ENDIAN 6201da177e4SLinus Torvalds bool "Build big-endian kernel" 6211da177e4SLinus Torvalds depends on ARCH_SUPPORTS_BIG_ENDIAN 6221da177e4SLinus Torvalds help 6231da177e4SLinus Torvalds Say Y if you plan on running a kernel in big-endian mode. 6241da177e4SLinus Torvalds Note that your board must be properly built and your board 6251da177e4SLinus Torvalds port must properly enable any big-endian related features 6261da177e4SLinus Torvalds of your chipset/board/processor. 6271da177e4SLinus Torvalds 6286afd6faeSHyok S. Choiconfig CPU_HIGH_VECTOR 6296340aa61SRobert P. J. Day depends on !MMU && CPU_CP15 && !CPU_ARM740T 6306afd6faeSHyok S. Choi bool "Select the High exception vector" 6316afd6faeSHyok S. Choi default n 6326afd6faeSHyok S. Choi help 6336afd6faeSHyok S. Choi Say Y here to select high exception vector(0xFFFF0000~). 6346afd6faeSHyok S. Choi The exception vector can be vary depending on the platform 6356afd6faeSHyok S. Choi design in nommu mode. If your platform needs to select 6366afd6faeSHyok S. Choi high exception vector, say Y. 6376afd6faeSHyok S. Choi Otherwise or if you are unsure, say N, and the low exception 6386afd6faeSHyok S. Choi vector (0x00000000~) will be used. 6396afd6faeSHyok S. Choi 6401da177e4SLinus Torvaldsconfig CPU_ICACHE_DISABLE 641f12d0d7cSHyok S. Choi bool "Disable I-Cache (I-bit)" 642f12d0d7cSHyok S. Choi depends on CPU_CP15 && !(CPU_ARM610 || CPU_ARM710 || CPU_ARM720T || CPU_ARM740T || CPU_XSCALE || CPU_XSC3) 6431da177e4SLinus Torvalds help 6441da177e4SLinus Torvalds Say Y here to disable the processor instruction cache. Unless 6451da177e4SLinus Torvalds you have a reason not to or are unsure, say N. 6461da177e4SLinus Torvalds 6471da177e4SLinus Torvaldsconfig CPU_DCACHE_DISABLE 648f12d0d7cSHyok S. Choi bool "Disable D-Cache (C-bit)" 649f12d0d7cSHyok S. Choi depends on CPU_CP15 6501da177e4SLinus Torvalds help 6511da177e4SLinus Torvalds Say Y here to disable the processor data cache. Unless 6521da177e4SLinus Torvalds you have a reason not to or are unsure, say N. 6531da177e4SLinus Torvalds 654f37f46ebSHyok S. Choiconfig CPU_DCACHE_SIZE 655f37f46ebSHyok S. Choi hex 656f37f46ebSHyok S. Choi depends on CPU_ARM740T || CPU_ARM946E 657f37f46ebSHyok S. Choi default 0x00001000 if CPU_ARM740T 658f37f46ebSHyok S. Choi default 0x00002000 # default size for ARM946E-S 659f37f46ebSHyok S. Choi help 660f37f46ebSHyok S. Choi Some cores are synthesizable to have various sized cache. For 661f37f46ebSHyok S. Choi ARM946E-S case, it can vary from 0KB to 1MB. 662f37f46ebSHyok S. Choi To support such cache operations, it is efficient to know the size 663f37f46ebSHyok S. Choi before compile time. 664f37f46ebSHyok S. Choi If your SoC is configured to have a different size, define the value 665f37f46ebSHyok S. Choi here with proper conditions. 666f37f46ebSHyok S. Choi 6671da177e4SLinus Torvaldsconfig CPU_DCACHE_WRITETHROUGH 6681da177e4SLinus Torvalds bool "Force write through D-cache" 669a7039bd6SLennert Buytenhek depends on (CPU_ARM740T || CPU_ARM920T || CPU_ARM922T || CPU_ARM925T || CPU_ARM926T || CPU_ARM940T || CPU_ARM946E || CPU_ARM1020) && !CPU_DCACHE_DISABLE 6701da177e4SLinus Torvalds default y if CPU_ARM925T 6711da177e4SLinus Torvalds help 6721da177e4SLinus Torvalds Say Y here to use the data cache in writethrough mode. Unless you 6731da177e4SLinus Torvalds specifically require this or are unsure, say N. 6741da177e4SLinus Torvalds 6751da177e4SLinus Torvaldsconfig CPU_CACHE_ROUND_ROBIN 6761da177e4SLinus Torvalds bool "Round robin I and D cache replacement algorithm" 677f37f46ebSHyok S. Choi depends on (CPU_ARM926T || CPU_ARM946E || CPU_ARM1020) && (!CPU_ICACHE_DISABLE || !CPU_DCACHE_DISABLE) 6781da177e4SLinus Torvalds help 6791da177e4SLinus Torvalds Say Y here to use the predictable round-robin cache replacement 6801da177e4SLinus Torvalds policy. Unless you specifically require this or are unsure, say N. 6811da177e4SLinus Torvalds 6821da177e4SLinus Torvaldsconfig CPU_BPREDICT_DISABLE 6831da177e4SLinus Torvalds bool "Disable branch prediction" 68423688e99SCatalin Marinas depends on CPU_ARM1020 || CPU_V6 || CPU_XSC3 || CPU_V7 6851da177e4SLinus Torvalds help 6861da177e4SLinus Torvalds Say Y here to disable branch prediction. If unsure, say N. 6872d2669b6SNicolas Pitre 6884b0e07a5SNicolas Pitreconfig TLS_REG_EMUL 6894b0e07a5SNicolas Pitre bool 6904b0e07a5SNicolas Pitre help 69170489c88SNicolas Pitre An SMP system using a pre-ARMv6 processor (there are apparently 69270489c88SNicolas Pitre a few prototypes like that in existence) and therefore access to 69370489c88SNicolas Pitre that required register must be emulated. 6944b0e07a5SNicolas Pitre 6952d2669b6SNicolas Pitreconfig HAS_TLS_REG 6962d2669b6SNicolas Pitre bool 69770489c88SNicolas Pitre depends on !TLS_REG_EMUL 69870489c88SNicolas Pitre default y if SMP || CPU_32v7 6992d2669b6SNicolas Pitre help 7002d2669b6SNicolas Pitre This selects support for the CP15 thread register. 70170489c88SNicolas Pitre It is defined to be available on some ARMv6 processors (including 70270489c88SNicolas Pitre all SMP capable ARMv6's) or later processors. User space may 70370489c88SNicolas Pitre assume directly accessing that register and always obtain the 70470489c88SNicolas Pitre expected value only on ARMv7 and above. 7052d2669b6SNicolas Pitre 706dcef1f63SNicolas Pitreconfig NEEDS_SYSCALL_FOR_CMPXCHG 707dcef1f63SNicolas Pitre bool 708dcef1f63SNicolas Pitre help 709dcef1f63SNicolas Pitre SMP on a pre-ARMv6 processor? Well OK then. 710dcef1f63SNicolas Pitre Forget about fast user space cmpxchg support. 711dcef1f63SNicolas Pitre It is just not possible. 712dcef1f63SNicolas Pitre 713953233dcSCatalin Marinasconfig OUTER_CACHE 714953233dcSCatalin Marinas bool 715953233dcSCatalin Marinas default n 716382266adSCatalin Marinas 71799c6dc11SLennert Buytenhekconfig CACHE_FEROCEON_L2 71899c6dc11SLennert Buytenhek bool "Enable the Feroceon L2 cache controller" 719*794d15b2SStanislav Samsonov depends on ARCH_KIRKWOOD || ARCH_MV78XX0 72099c6dc11SLennert Buytenhek default y 72199c6dc11SLennert Buytenhek select OUTER_CACHE 72299c6dc11SLennert Buytenhek help 72399c6dc11SLennert Buytenhek This option enables the Feroceon L2 cache controller. 72499c6dc11SLennert Buytenhek 725382266adSCatalin Marinasconfig CACHE_L2X0 726ba927951SCatalin Marinas bool "Enable the L2x0 outer cache controller" 727ba927951SCatalin Marinas depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 728ba927951SCatalin Marinas default y 729382266adSCatalin Marinas select OUTER_CACHE 730ba927951SCatalin Marinas help 731ba927951SCatalin Marinas This option enables the L2x0 PrimeCell. 732