Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | config ARM |
| 2 | bool |
| 3 | default y |
Scott Wood | 1d8f51d | 2016-09-22 03:35:18 -0500 | [diff] [blame] | 4 | select ARCH_CLOCKSOURCE_DATA |
Florian Fainelli | e377cd8 | 2017-01-15 03:59:00 +0100 | [diff] [blame] | 5 | select ARCH_HAS_DEBUG_VIRTUAL |
Dan Williams | 21266be | 2015-11-19 18:19:29 -0800 | [diff] [blame] | 6 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
Kees Cook | 2b68f6c | 2015-04-14 15:48:00 -0700 | [diff] [blame] | 7 | select ARCH_HAS_ELF_RANDOMIZE |
Daniel Borkmann | d2852a2 | 2017-02-21 16:09:33 +0100 | [diff] [blame] | 8 | select ARCH_HAS_SET_MEMORY |
Laura Abbott | ad21fc4 | 2017-02-06 16:31:57 -0800 | [diff] [blame] | 9 | select ARCH_HAS_STRICT_KERNEL_RWX if MMU && !XIP_KERNEL |
| 10 | select ARCH_HAS_STRICT_MODULE_RWX if MMU |
Mark Rutland | 3d06770 | 2012-10-30 12:13:42 +0000 | [diff] [blame] | 11 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 12 | select ARCH_HAVE_CUSTOM_GPIO_H |
Riku Voipio | 957e3fa | 2014-12-12 16:57:44 -0800 | [diff] [blame] | 13 | select ARCH_HAS_GCOV_PROFILE_ALL |
Mark Salter | d701884 | 2013-10-07 22:07:58 -0400 | [diff] [blame] | 14 | select ARCH_MIGHT_HAVE_PC_PARPORT |
Laura Abbott | ad21fc4 | 2017-02-06 16:31:57 -0800 | [diff] [blame] | 15 | select ARCH_OPTIONAL_KERNEL_RWX if ARCH_HAS_STRICT_KERNEL_RWX |
| 16 | select ARCH_OPTIONAL_KERNEL_RWX_DEFAULT if CPU_V7 |
Peter Zijlstra | 4badad3 | 2014-06-06 19:53:16 +0200 | [diff] [blame] | 17 | select ARCH_SUPPORTS_ATOMIC_RMW |
Kim Phillips | 017f161 | 2013-11-06 05:15:24 +0100 | [diff] [blame] | 18 | select ARCH_USE_BUILTIN_BSWAP |
Will Deacon | 0cbad9c | 2013-10-09 17:19:22 +0100 | [diff] [blame] | 19 | select ARCH_USE_CMPXCHG_LOCKREF |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 20 | select ARCH_WANT_IPC_PARSE_VERSION |
Stephen Boyd | ee951c6 | 2012-10-29 19:19:34 +0100 | [diff] [blame] | 21 | select BUILDTIME_EXTABLE_SORT if MMU |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 22 | select CLONE_BACKWARDS |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 23 | select CPU_PM if (SUSPEND || CPU_IDLE) |
Will Deacon | dce5c9e | 2013-12-17 19:50:16 +0100 | [diff] [blame] | 24 | select DCACHE_WORD_ACCESS if HAVE_EFFICIENT_UNALIGNED_ACCESS |
Borislav Petkov | b01aec9 | 2015-05-21 19:59:31 +0200 | [diff] [blame] | 25 | select EDAC_SUPPORT |
| 26 | select EDAC_ATOMIC_SCRUB |
Laura Abbott | 36d0fd2 | 2014-10-09 15:26:42 -0700 | [diff] [blame] | 27 | select GENERIC_ALLOCATOR |
Uwe Kleine-König | 4477ca4 | 2013-03-21 21:02:37 +0100 | [diff] [blame] | 28 | select GENERIC_ATOMIC64 if (CPU_V7M || CPU_V6 || !CPU_32v6K || !AEABI) |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 29 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
Ard Biesheuvel | ea2d9a9 | 2017-03-19 17:23:31 +0100 | [diff] [blame] | 30 | select GENERIC_CPU_AUTOPROBE |
Ard Biesheuvel | 2937367 | 2015-09-01 08:59:28 +0200 | [diff] [blame] | 31 | select GENERIC_EARLY_IOREMAP |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 32 | select GENERIC_IDLE_POLL_SETUP |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 33 | select GENERIC_IRQ_PROBE |
| 34 | select GENERIC_IRQ_SHOW |
Geert Uytterhoeven | 7c07005 | 2015-04-01 13:37:11 +0100 | [diff] [blame] | 35 | select GENERIC_IRQ_SHOW_LEVEL |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 36 | select GENERIC_PCI_IOMAP |
Stephen Boyd | 38ff87f | 2013-06-01 23:39:40 -0700 | [diff] [blame] | 37 | select GENERIC_SCHED_CLOCK |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 38 | select GENERIC_SMP_IDLE_THREAD |
| 39 | select GENERIC_STRNCPY_FROM_USER |
| 40 | select GENERIC_STRNLEN_USER |
Marc Zyngier | a71b092 | 2014-08-26 11:03:18 +0100 | [diff] [blame] | 41 | select HANDLE_DOMAIN_IRQ |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 42 | select HARDIRQS_SW_RESEND |
AKASHI Takahiro | 7a01772 | 2014-02-25 18:16:24 +0900 | [diff] [blame] | 43 | select HAVE_ARCH_AUDITSYSCALL if (AEABI && !OABI_COMPAT) |
Yalin Wang | 0b7857d | 2015-01-16 02:45:55 +0100 | [diff] [blame] | 44 | select HAVE_ARCH_BITREVERSE if (CPU_32v7M || CPU_32v7) && !CPU_32v6 |
Arnd Bergmann | 437682ee | 2015-11-19 13:30:42 +0100 | [diff] [blame] | 45 | select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL && !CPU_ENDIAN_BE32 && MMU |
| 46 | select HAVE_ARCH_KGDB if !CPU_ENDIAN_BE32 && MMU |
Daniel Cashman | e0c25d9 | 2016-01-14 15:19:57 -0800 | [diff] [blame] | 47 | select HAVE_ARCH_MMAP_RND_BITS if MMU |
Kees Cook | 9170217 | 2013-11-09 00:51:56 +0100 | [diff] [blame] | 48 | select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT) |
Wade Farnsworth | 0693bf6 | 2012-04-04 16:19:47 +0100 | [diff] [blame] | 49 | select HAVE_ARCH_TRACEHOOK |
Jens Wiklander | b329f95 | 2016-01-04 15:42:55 +0100 | [diff] [blame] | 50 | select HAVE_ARM_SMCCC if CPU_V7 |
Daniel Borkmann | 6077776 | 2016-05-13 19:08:28 +0200 | [diff] [blame] | 51 | select HAVE_CBPF_JIT |
Russell King | 51aaf81 | 2014-04-22 22:26:27 +0100 | [diff] [blame] | 52 | select HAVE_CC_STACKPROTECTOR |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 53 | select HAVE_CONTEXT_TRACKING |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 54 | select HAVE_C_RECORDMCOUNT |
| 55 | select HAVE_DEBUG_KMEMLEAK |
| 56 | select HAVE_DMA_API_DEBUG |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 57 | select HAVE_DMA_CONTIGUOUS if MMU |
Arnd Bergmann | 437682ee | 2015-11-19 13:30:42 +0100 | [diff] [blame] | 58 | select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL) && !CPU_ENDIAN_BE32 && MMU |
Will Deacon | dce5c9e | 2013-12-17 19:50:16 +0100 | [diff] [blame] | 59 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if (CPU_V6 || CPU_V6K || CPU_V7) && MMU |
Jiri Slaby | 5f56a5d | 2016-05-20 17:00:16 -0700 | [diff] [blame] | 60 | select HAVE_EXIT_THREAD |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 61 | select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL) |
| 62 | select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL) |
| 63 | select HAVE_FUNCTION_TRACER if (!XIP_KERNEL) |
Emese Revfy | 6b90bd4 | 2016-05-24 00:09:38 +0200 | [diff] [blame] | 64 | select HAVE_GCC_PLUGINS |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 65 | select HAVE_GENERIC_DMA_COHERENT |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 66 | select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V6K || CPU_V7)) |
| 67 | select HAVE_IDE if PCI || ISA || PCMCIA |
Russell King | 87c46b6 | 2013-05-04 14:38:59 +0100 | [diff] [blame] | 68 | select HAVE_IRQ_TIME_ACCOUNTING |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 69 | select HAVE_KERNEL_GZIP |
Kyungsik Lee | f9b493a | 2013-07-08 16:01:48 -0700 | [diff] [blame] | 70 | select HAVE_KERNEL_LZ4 |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 71 | select HAVE_KERNEL_LZMA |
| 72 | select HAVE_KERNEL_LZO |
| 73 | select HAVE_KERNEL_XZ |
Arnd Bergmann | cb1293e | 2015-05-26 15:40:44 +0100 | [diff] [blame] | 74 | select HAVE_KPROBES if !XIP_KERNEL && !CPU_ENDIAN_BE32 && !CPU_V7M |
Ananth N Mavinakayanahalli | 9edddaa | 2008-03-04 14:28:37 -0800 | [diff] [blame] | 75 | select HAVE_KRETPROBES if (HAVE_KPROBES) |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 76 | select HAVE_MEMBLOCK |
Ard Biesheuvel | 7d485f6 | 2014-11-24 16:54:35 +0100 | [diff] [blame] | 77 | select HAVE_MOD_ARCH_SPECIFIC |
Petr Mladek | 42a0bb3 | 2016-05-20 17:00:33 -0700 | [diff] [blame] | 78 | select HAVE_NMI |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 79 | select HAVE_OPROFILE if (HAVE_PERF_EVENTS) |
Wang Nan | 0dc016d | 2015-01-09 14:37:36 +0800 | [diff] [blame] | 80 | select HAVE_OPTPROBES if !THUMB2_KERNEL |
Jamie Iles | 7ada189 | 2010-02-02 20:24:58 +0100 | [diff] [blame] | 81 | select HAVE_PERF_EVENTS |
Will Deacon | 4986389 | 2013-09-26 12:36:35 +0100 | [diff] [blame] | 82 | select HAVE_PERF_REGS |
| 83 | select HAVE_PERF_USER_STACK_DUMP |
Steve Capper | a0ad549 | 2014-10-09 15:29:18 -0700 | [diff] [blame] | 84 | select HAVE_RCU_TABLE_FREE if (SMP && ARM_LPAE) |
Will Deacon | e513f8b | 2010-06-25 12:24:53 +0100 | [diff] [blame] | 85 | select HAVE_REGS_AND_STACK_ACCESS_API |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 86 | select HAVE_SYSCALL_TRACEPOINTS |
Catalin Marinas | af1839e | 2012-10-08 16:28:08 -0700 | [diff] [blame] | 87 | select HAVE_UID16 |
Kevin Hilman | 31c1fc8 | 2013-09-16 15:28:22 -0700 | [diff] [blame] | 88 | select HAVE_VIRT_CPU_ACCOUNTING_GEN |
Thomas Gleixner | da0ec6f | 2013-08-14 20:43:17 +0100 | [diff] [blame] | 89 | select IRQ_FORCED_THREADING |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 90 | select MODULES_USE_ELF_REL |
Santosh Shilimkar | 84f452b | 2013-06-30 00:28:46 -0400 | [diff] [blame] | 91 | select NO_BOOTMEM |
Arnd Bergmann | aa7d5f1 | 2015-11-19 13:20:54 +0100 | [diff] [blame] | 92 | select OF_EARLY_FLATTREE if OF |
| 93 | select OF_RESERVED_MEM if OF |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 94 | select OLD_SIGACTION |
| 95 | select OLD_SIGSUSPEND3 |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 96 | select PERF_USE_VMALLOC |
| 97 | select RTC_LIB |
| 98 | select SYS_SUPPORTS_APM_EMULATION |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 99 | # Above selects are sorted alphabetically; please add new ones |
| 100 | # according to that. Thanks. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 101 | help |
| 102 | The ARM series is a line of low-power-consumption RISC chip designs |
Martin Michlmayr | f6c8965 | 2006-02-08 21:09:07 +0000 | [diff] [blame] | 103 | licensed by ARM Ltd and targeted at embedded applications and |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 104 | handhelds such as the Compaq IPAQ. ARM-based PCs are no longer |
Martin Michlmayr | f6c8965 | 2006-02-08 21:09:07 +0000 | [diff] [blame] | 105 | manufactured, but legacy ARM-based PC hardware remains popular in |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 106 | Europe. There is an ARM Linux project with a web page at |
| 107 | <http://www.arm.linux.org.uk/>. |
| 108 | |
Russell King | 74facff | 2011-06-02 11:16:22 +0100 | [diff] [blame] | 109 | config ARM_HAS_SG_CHAIN |
Laura Abbott | 308c09f | 2014-08-08 14:23:25 -0700 | [diff] [blame] | 110 | select ARCH_HAS_SG_CHAIN |
Russell King | 74facff | 2011-06-02 11:16:22 +0100 | [diff] [blame] | 111 | bool |
| 112 | |
Marek Szyprowski | 4ce63fc | 2012-05-16 15:48:21 +0200 | [diff] [blame] | 113 | config NEED_SG_DMA_LENGTH |
| 114 | bool |
| 115 | |
| 116 | config ARM_DMA_USE_IOMMU |
Marek Szyprowski | 4ce63fc | 2012-05-16 15:48:21 +0200 | [diff] [blame] | 117 | bool |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 118 | select ARM_HAS_SG_CHAIN |
| 119 | select NEED_SG_DMA_LENGTH |
Marek Szyprowski | 4ce63fc | 2012-05-16 15:48:21 +0200 | [diff] [blame] | 120 | |
Seung-Woo Kim | 60460ab | 2013-02-06 13:21:14 +0900 | [diff] [blame] | 121 | if ARM_DMA_USE_IOMMU |
| 122 | |
| 123 | config ARM_DMA_IOMMU_ALIGNMENT |
| 124 | int "Maximum PAGE_SIZE order of alignment for DMA IOMMU buffers" |
| 125 | range 4 9 |
| 126 | default 8 |
| 127 | help |
| 128 | DMA mapping framework by default aligns all buffers to the smallest |
| 129 | PAGE_SIZE order which is greater than or equal to the requested buffer |
| 130 | size. This works well for buffers up to a few hundreds kilobytes, but |
| 131 | for larger buffers it just a waste of address space. Drivers which has |
| 132 | relatively small addressing window (like 64Mib) might run out of |
| 133 | virtual space with just a few allocations. |
| 134 | |
| 135 | With this parameter you can specify the maximum PAGE_SIZE order for |
| 136 | DMA IOMMU buffers. Larger buffers will be aligned only to this |
| 137 | specified order. The order is expressed as a power of two multiplied |
| 138 | by the PAGE_SIZE. |
| 139 | |
| 140 | endif |
| 141 | |
Hans Ulli Kroll | 0b05da7 | 2010-12-02 12:32:15 +0100 | [diff] [blame] | 142 | config MIGHT_HAVE_PCI |
| 143 | bool |
| 144 | |
Ralf Baechle | 75e7153 | 2007-02-09 17:08:58 +0000 | [diff] [blame] | 145 | config SYS_SUPPORTS_APM_EMULATION |
| 146 | bool |
| 147 | |
Linus Walleij | bc58177 | 2009-09-15 17:30:37 +0100 | [diff] [blame] | 148 | config HAVE_TCM |
| 149 | bool |
| 150 | select GENERIC_ALLOCATOR |
| 151 | |
Russell King | e119bff | 2010-01-10 17:23:29 +0000 | [diff] [blame] | 152 | config HAVE_PROC_CPU |
| 153 | bool |
| 154 | |
Uwe Kleine-König | ce816fa | 2014-04-07 15:39:19 -0700 | [diff] [blame] | 155 | config NO_IOPORT_MAP |
Al Viro | 5ea8176 | 2007-02-11 15:41:31 +0000 | [diff] [blame] | 156 | bool |
Al Viro | 5ea8176 | 2007-02-11 15:41:31 +0000 | [diff] [blame] | 157 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | config EISA |
| 159 | bool |
| 160 | ---help--- |
| 161 | The Extended Industry Standard Architecture (EISA) bus was |
| 162 | developed as an open alternative to the IBM MicroChannel bus. |
| 163 | |
| 164 | The EISA bus provided some of the features of the IBM MicroChannel |
| 165 | bus while maintaining backward compatibility with cards made for |
| 166 | the older ISA bus. The EISA bus saw limited use between 1988 and |
| 167 | 1995 when it was made obsolete by the PCI bus. |
| 168 | |
| 169 | Say Y here if you are building a kernel for an EISA-based machine. |
| 170 | |
| 171 | Otherwise, say N. |
| 172 | |
| 173 | config SBUS |
| 174 | bool |
| 175 | |
Russell King | f16fb1e | 2007-04-28 09:59:37 +0100 | [diff] [blame] | 176 | config STACKTRACE_SUPPORT |
| 177 | bool |
| 178 | default y |
| 179 | |
| 180 | config LOCKDEP_SUPPORT |
| 181 | bool |
| 182 | default y |
| 183 | |
Russell King | 7ad1bcb | 2006-08-27 12:07:02 +0100 | [diff] [blame] | 184 | config TRACE_IRQFLAGS_SUPPORT |
| 185 | bool |
Arnd Bergmann | cb1293e | 2015-05-26 15:40:44 +0100 | [diff] [blame] | 186 | default !CPU_V7M |
Russell King | 7ad1bcb | 2006-08-27 12:07:02 +0100 | [diff] [blame] | 187 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 188 | config RWSEM_XCHGADD_ALGORITHM |
| 189 | bool |
Will Deacon | 8a87411 | 2014-05-02 17:06:19 +0100 | [diff] [blame] | 190 | default y |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 191 | |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 192 | config ARCH_HAS_ILOG2_U32 |
| 193 | bool |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 194 | |
| 195 | config ARCH_HAS_ILOG2_U64 |
| 196 | bool |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 197 | |
Eduardo Valentin | 4a1b573 | 2013-06-13 22:58:52 +0100 | [diff] [blame] | 198 | config ARCH_HAS_BANDGAP |
| 199 | bool |
| 200 | |
Stefan Agner | a5f4c56 | 2015-08-13 00:01:52 +0100 | [diff] [blame] | 201 | config FIX_EARLYCON_MEM |
| 202 | def_bool y if MMU |
| 203 | |
Akinobu Mita | b89c3b1 | 2006-03-26 01:39:19 -0800 | [diff] [blame] | 204 | config GENERIC_HWEIGHT |
| 205 | bool |
| 206 | default y |
| 207 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 208 | config GENERIC_CALIBRATE_DELAY |
| 209 | bool |
| 210 | default y |
| 211 | |
viro@ZenIV.linux.org.uk | a08b6b7 | 2005-09-06 01:48:42 +0100 | [diff] [blame] | 212 | config ARCH_MAY_HAVE_PC_FDC |
| 213 | bool |
| 214 | |
Christoph Lameter | 5ac6da6 | 2007-02-10 01:43:14 -0800 | [diff] [blame] | 215 | config ZONE_DMA |
| 216 | bool |
Christoph Lameter | 5ac6da6 | 2007-02-10 01:43:14 -0800 | [diff] [blame] | 217 | |
FUJITA Tomonori | ccd7ab7 | 2010-03-10 15:23:23 -0800 | [diff] [blame] | 218 | config NEED_DMA_MAP_STATE |
| 219 | def_bool y |
| 220 | |
David A. Long | c7edc9e | 2014-03-07 11:23:04 -0500 | [diff] [blame] | 221 | config ARCH_SUPPORTS_UPROBES |
| 222 | def_bool y |
| 223 | |
Rob Herring | 58af4a2 | 2012-03-20 14:33:01 -0500 | [diff] [blame] | 224 | config ARCH_HAS_DMA_SET_COHERENT_MASK |
| 225 | bool |
| 226 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 227 | config GENERIC_ISA_DMA |
| 228 | bool |
| 229 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 230 | config FIQ |
| 231 | bool |
| 232 | |
Rob Herring | 13a5045 | 2012-02-07 09:28:22 -0600 | [diff] [blame] | 233 | config NEED_RET_TO_USER |
| 234 | bool |
| 235 | |
Al Viro | 034d2f5 | 2005-12-19 16:27:59 -0500 | [diff] [blame] | 236 | config ARCH_MTD_XIP |
| 237 | bool |
| 238 | |
Hyok S. Choi | c760fc1 | 2006-03-27 15:18:50 +0100 | [diff] [blame] | 239 | config VECTORS_BASE |
| 240 | hex |
Hyok S. Choi | 6afd6fa | 2006-09-28 21:46:34 +0900 | [diff] [blame] | 241 | default 0xffff0000 if MMU || CPU_HIGH_VECTOR |
Hyok S. Choi | c760fc1 | 2006-03-27 15:18:50 +0100 | [diff] [blame] | 242 | default DRAM_BASE if REMAP_VECTORS_TO_RAM |
| 243 | default 0x00000000 |
| 244 | help |
Russell King | 19accfd | 2013-07-04 11:40:32 +0100 | [diff] [blame] | 245 | The base address of exception vectors. This must be two pages |
| 246 | in size. |
Hyok S. Choi | c760fc1 | 2006-03-27 15:18:50 +0100 | [diff] [blame] | 247 | |
Russell King | dc21af9 | 2011-01-04 19:09:43 +0000 | [diff] [blame] | 248 | config ARM_PATCH_PHYS_VIRT |
Russell King | c1beced | 2011-08-10 10:23:45 +0100 | [diff] [blame] | 249 | bool "Patch physical to virtual translations at runtime" if EMBEDDED |
| 250 | default y |
Nicolas Pitre | b511d75 | 2011-02-21 06:53:35 +0100 | [diff] [blame] | 251 | depends on !XIP_KERNEL && MMU |
Russell King | dc21af9 | 2011-01-04 19:09:43 +0000 | [diff] [blame] | 252 | help |
Russell King | 111e9a5 | 2011-05-12 10:02:42 +0100 | [diff] [blame] | 253 | Patch phys-to-virt and virt-to-phys translation functions at |
| 254 | boot and module load time according to the position of the |
| 255 | kernel in system memory. |
Russell King | dc21af9 | 2011-01-04 19:09:43 +0000 | [diff] [blame] | 256 | |
Russell King | 111e9a5 | 2011-05-12 10:02:42 +0100 | [diff] [blame] | 257 | This can only be used with non-XIP MMU kernels where the base |
Nicolas Pitre | daece59 | 2011-08-12 00:14:29 +0100 | [diff] [blame] | 258 | of physical memory is at a 16MB boundary. |
Russell King | dc21af9 | 2011-01-04 19:09:43 +0000 | [diff] [blame] | 259 | |
Russell King | c1beced | 2011-08-10 10:23:45 +0100 | [diff] [blame] | 260 | Only disable this option if you know that you do not require |
| 261 | this feature (eg, building a kernel for a single machine) and |
| 262 | you need to shrink the kernel to the minimal size. |
| 263 | |
Rob Herring | c334bc1 | 2012-03-04 22:03:33 -0600 | [diff] [blame] | 264 | config NEED_MACH_IO_H |
| 265 | bool |
| 266 | help |
| 267 | Select this when mach/io.h is required to provide special |
| 268 | definitions for this platform. The need for mach/io.h should |
| 269 | be avoided when possible. |
| 270 | |
Nicolas Pitre | 0cdc8b9 | 2011-09-02 22:26:55 -0400 | [diff] [blame] | 271 | config NEED_MACH_MEMORY_H |
Nicolas Pitre | 1b9f95f | 2011-07-05 22:52:51 -0400 | [diff] [blame] | 272 | bool |
Russell King | 111e9a5 | 2011-05-12 10:02:42 +0100 | [diff] [blame] | 273 | help |
Nicolas Pitre | 0cdc8b9 | 2011-09-02 22:26:55 -0400 | [diff] [blame] | 274 | Select this when mach/memory.h is required to provide special |
| 275 | definitions for this platform. The need for mach/memory.h should |
| 276 | be avoided when possible. |
Nicolas Pitre | 1b9f95f | 2011-07-05 22:52:51 -0400 | [diff] [blame] | 277 | |
| 278 | config PHYS_OFFSET |
Nicolas Pitre | 974c072 | 2011-12-02 23:09:42 +0100 | [diff] [blame] | 279 | hex "Physical address of main memory" if MMU |
Uwe Kleine-König | c6f54a9 | 2014-07-23 20:37:43 +0100 | [diff] [blame] | 280 | depends on !ARM_PATCH_PHYS_VIRT |
Nicolas Pitre | 974c072 | 2011-12-02 23:09:42 +0100 | [diff] [blame] | 281 | default DRAM_BASE if !MMU |
Uwe Kleine-König | c6f54a9 | 2014-07-23 20:37:43 +0100 | [diff] [blame] | 282 | default 0x00000000 if ARCH_EBSA110 || \ |
Uwe Kleine-König | c6f54a9 | 2014-07-23 20:37:43 +0100 | [diff] [blame] | 283 | ARCH_FOOTBRIDGE || \ |
| 284 | ARCH_INTEGRATOR || \ |
| 285 | ARCH_IOP13XX || \ |
| 286 | ARCH_KS8695 || \ |
Linus Walleij | 8f2c006 | 2016-08-10 14:30:35 +0200 | [diff] [blame] | 287 | ARCH_REALVIEW |
Uwe Kleine-König | c6f54a9 | 2014-07-23 20:37:43 +0100 | [diff] [blame] | 288 | default 0x10000000 if ARCH_OMAP1 || ARCH_RPC |
| 289 | default 0x20000000 if ARCH_S5PV210 |
H Hartley Sweeten | b8824c9 | 2015-06-15 10:35:06 -0700 | [diff] [blame] | 290 | default 0xc0000000 if ARCH_SA1100 |
Nicolas Pitre | 1b9f95f | 2011-07-05 22:52:51 -0400 | [diff] [blame] | 291 | help |
| 292 | Please provide the physical address corresponding to the |
| 293 | location of main memory in your system. |
Russell King | cada3c0 | 2011-01-04 19:39:29 +0000 | [diff] [blame] | 294 | |
Simon Glass | 87e040b | 2011-08-16 23:44:26 +0100 | [diff] [blame] | 295 | config GENERIC_BUG |
| 296 | def_bool y |
| 297 | depends on BUG |
| 298 | |
Kirill A. Shutemov | 1bcad26 | 2015-04-14 15:45:42 -0700 | [diff] [blame] | 299 | config PGTABLE_LEVELS |
| 300 | int |
| 301 | default 3 if ARM_LPAE |
| 302 | default 2 |
| 303 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | source "init/Kconfig" |
| 305 | |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 306 | source "kernel/Kconfig.freezer" |
| 307 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 308 | menu "System Type" |
| 309 | |
Hyok S. Choi | 3c42797 | 2009-07-24 12:35:00 +0100 | [diff] [blame] | 310 | config MMU |
| 311 | bool "MMU-based Paged Memory Management Support" |
| 312 | default y |
| 313 | help |
| 314 | Select if you want MMU-based virtualised addressing space |
| 315 | support by paged memory management. If unsure, say 'Y'. |
| 316 | |
Daniel Cashman | e0c25d9 | 2016-01-14 15:19:57 -0800 | [diff] [blame] | 317 | config ARCH_MMAP_RND_BITS_MIN |
| 318 | default 8 |
| 319 | |
| 320 | config ARCH_MMAP_RND_BITS_MAX |
| 321 | default 14 if PAGE_OFFSET=0x40000000 |
| 322 | default 15 if PAGE_OFFSET=0x80000000 |
| 323 | default 16 |
| 324 | |
Russell King | ccf50e2 | 2010-03-15 19:03:06 +0000 | [diff] [blame] | 325 | # |
| 326 | # The "ARM system type" choice list is ordered alphabetically by option |
| 327 | # text. Please add new entries in the option alphabetic order. |
| 328 | # |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | choice |
| 330 | prompt "ARM system type" |
Arnd Bergmann | 7072280 | 2015-12-17 17:45:47 +0100 | [diff] [blame] | 331 | default ARM_SINGLE_ARMV7M if !MMU |
Arnd Bergmann | 1420b22 | 2013-02-14 13:33:36 +0100 | [diff] [blame] | 332 | default ARCH_MULTIPLATFORM if MMU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 334 | config ARCH_MULTIPLATFORM |
| 335 | bool "Allow multiple platforms to be selected" |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 336 | depends on MMU |
Olof Johansson | 42dc836 | 2014-03-09 12:46:59 -0700 | [diff] [blame] | 337 | select ARM_HAS_SG_CHAIN |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 338 | select ARM_PATCH_PHYS_VIRT |
| 339 | select AUTO_ZRELADDR |
Rob Herring | 6d0add4 | 2014-04-16 08:42:13 -0500 | [diff] [blame] | 340 | select CLKSRC_OF |
Dinh Nguyen | 6631422 | 2012-07-18 16:07:18 -0600 | [diff] [blame] | 341 | select COMMON_CLK |
Rob Herring | ddb902c | 2013-11-22 09:29:37 -0600 | [diff] [blame] | 342 | select GENERIC_CLOCKEVENTS |
Will Deacon | 08d38be | 2014-05-27 23:26:35 +0100 | [diff] [blame] | 343 | select MIGHT_HAVE_PCI |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 344 | select MULTI_IRQ_HANDLER |
Kishon Vijay Abraham I | e13688f | 2016-09-14 15:49:06 +0530 | [diff] [blame] | 345 | select PCI_DOMAINS if PCI |
Dinh Nguyen | 6631422 | 2012-07-18 16:07:18 -0600 | [diff] [blame] | 346 | select SPARSE_IRQ |
| 347 | select USE_OF |
Dinh Nguyen | 6631422 | 2012-07-18 16:07:18 -0600 | [diff] [blame] | 348 | |
Stefan Agner | 9c77bc4 | 2015-05-20 00:03:51 +0200 | [diff] [blame] | 349 | config ARM_SINGLE_ARMV7M |
| 350 | bool "ARMv7-M based platforms (Cortex-M0/M3/M4)" |
| 351 | depends on !MMU |
Stefan Agner | 9c77bc4 | 2015-05-20 00:03:51 +0200 | [diff] [blame] | 352 | select ARM_NVIC |
Stefan Agner | 499f164 | 2015-05-21 00:35:44 +0200 | [diff] [blame] | 353 | select AUTO_ZRELADDR |
Stefan Agner | 9c77bc4 | 2015-05-20 00:03:51 +0200 | [diff] [blame] | 354 | select CLKSRC_OF |
| 355 | select COMMON_CLK |
| 356 | select CPU_V7M |
| 357 | select GENERIC_CLOCKEVENTS |
| 358 | select NO_IOPORT_MAP |
| 359 | select SPARSE_IRQ |
| 360 | select USE_OF |
| 361 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 362 | config ARCH_EBSA110 |
| 363 | bool "EBSA-110" |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 364 | select ARCH_USES_GETTIMEOFFSET |
Russell King | c750815 | 2008-10-26 10:55:14 +0000 | [diff] [blame] | 365 | select CPU_SA110 |
Russell King | f7e68bb | 2005-05-05 14:49:01 +0100 | [diff] [blame] | 366 | select ISA |
Rob Herring | c334bc1 | 2012-03-04 22:03:33 -0600 | [diff] [blame] | 367 | select NEED_MACH_IO_H |
Nicolas Pitre | 0cdc8b9 | 2011-09-02 22:26:55 -0400 | [diff] [blame] | 368 | select NEED_MACH_MEMORY_H |
Uwe Kleine-König | ce816fa | 2014-04-07 15:39:19 -0700 | [diff] [blame] | 369 | select NO_IOPORT_MAP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | help |
| 371 | This is an evaluation board for the StrongARM processor available |
Martin Michlmayr | f6c8965 | 2006-02-08 21:09:07 +0000 | [diff] [blame] | 372 | from Digital. It has limited hardware on-board, including an |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 373 | Ethernet interface, two PCMCIA sockets, two serial ports and a |
| 374 | parallel port. |
| 375 | |
Lennert Buytenhek | e7736d4 | 2006-03-20 17:10:13 +0000 | [diff] [blame] | 376 | config ARCH_EP93XX |
| 377 | bool "EP93xx-based" |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 378 | select ARCH_HAS_HOLES_MEMORYMODEL |
Lennert Buytenhek | e7736d4 | 2006-03-20 17:10:13 +0000 | [diff] [blame] | 379 | select ARM_AMBA |
H Hartley Sweeten | b8824c9 | 2015-06-15 10:35:06 -0700 | [diff] [blame] | 380 | select ARM_PATCH_PHYS_VIRT |
Lennert Buytenhek | e7736d4 | 2006-03-20 17:10:13 +0000 | [diff] [blame] | 381 | select ARM_VIC |
H Hartley Sweeten | b8824c9 | 2015-06-15 10:35:06 -0700 | [diff] [blame] | 382 | select AUTO_ZRELADDR |
Jean-Christop PLAGNIOL-VILLARD | 6d803ba | 2010-11-17 10:04:33 +0100 | [diff] [blame] | 383 | select CLKDEV_LOOKUP |
Linus Walleij | 000bc17 | 2015-06-15 14:34:03 +0200 | [diff] [blame] | 384 | select CLKSRC_MMIO |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 385 | select CPU_ARM920T |
Linus Walleij | 000bc17 | 2015-06-15 14:34:03 +0200 | [diff] [blame] | 386 | select GENERIC_CLOCKEVENTS |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 387 | select GPIOLIB |
Lennert Buytenhek | e7736d4 | 2006-03-20 17:10:13 +0000 | [diff] [blame] | 388 | help |
| 389 | This enables support for the Cirrus EP93xx series of CPUs. |
| 390 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 391 | config ARCH_FOOTBRIDGE |
| 392 | bool "FootBridge" |
Russell King | c750815 | 2008-10-26 10:55:14 +0000 | [diff] [blame] | 393 | select CPU_SA110 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 394 | select FOOTBRIDGE |
Russell King | 4e8d763 | 2011-01-28 21:00:39 +0000 | [diff] [blame] | 395 | select GENERIC_CLOCKEVENTS |
Arnd Bergmann | d0ee9f4 | 2011-10-01 21:10:32 +0200 | [diff] [blame] | 396 | select HAVE_IDE |
Rob Herring | 8ef6e62 | 2012-03-01 20:48:12 -0600 | [diff] [blame] | 397 | select NEED_MACH_IO_H if !MMU |
Nicolas Pitre | 0cdc8b9 | 2011-09-02 22:26:55 -0400 | [diff] [blame] | 398 | select NEED_MACH_MEMORY_H |
Martin Michlmayr | f999b8b | 2006-02-08 21:09:05 +0000 | [diff] [blame] | 399 | help |
| 400 | Support for systems based on the DC21285 companion chip |
| 401 | ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 402 | |
Deepak Saxena | 4af6fee | 2006-06-20 21:30:44 +0100 | [diff] [blame] | 403 | config ARCH_NETX |
| 404 | bool "Hilscher NetX based" |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 405 | select ARM_VIC |
Russell King | 234b6ced | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 406 | select CLKSRC_MMIO |
Russell King | c750815 | 2008-10-26 10:55:14 +0000 | [diff] [blame] | 407 | select CPU_ARM926T |
Uwe Kleine-König | 2fcfe6b | 2008-12-09 21:57:24 +0100 | [diff] [blame] | 408 | select GENERIC_CLOCKEVENTS |
Martin Michlmayr | f999b8b | 2006-02-08 21:09:05 +0000 | [diff] [blame] | 409 | help |
Deepak Saxena | 4af6fee | 2006-06-20 21:30:44 +0100 | [diff] [blame] | 410 | This enables support for systems based on the Hilscher NetX Soc |
| 411 | |
Russell King | 3b938be | 2007-05-12 11:25:44 +0100 | [diff] [blame] | 412 | config ARCH_IOP13XX |
| 413 | bool "IOP13xx-based" |
| 414 | depends on MMU |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 415 | select CPU_XSC3 |
Nicolas Pitre | 0cdc8b9 | 2011-09-02 22:26:55 -0400 | [diff] [blame] | 416 | select NEED_MACH_MEMORY_H |
Rob Herring | 13a5045 | 2012-02-07 09:28:22 -0600 | [diff] [blame] | 417 | select NEED_RET_TO_USER |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 418 | select PCI |
| 419 | select PLAT_IOP |
| 420 | select VMSPLIT_1G |
Thomas Gleixner | 37ebbcf | 2014-05-07 15:44:04 +0000 | [diff] [blame] | 421 | select SPARSE_IRQ |
Russell King | 3b938be | 2007-05-12 11:25:44 +0100 | [diff] [blame] | 422 | help |
| 423 | Support for Intel's IOP13XX (XScale) family of processors. |
| 424 | |
Lennert Buytenhek | 3f7e581 | 2006-09-18 23:10:26 +0100 | [diff] [blame] | 425 | config ARCH_IOP32X |
| 426 | bool "IOP32x-based" |
Russell King | a4f7e76 | 2006-06-28 12:52:41 +0100 | [diff] [blame] | 427 | depends on MMU |
Russell King | c750815 | 2008-10-26 10:55:14 +0000 | [diff] [blame] | 428 | select CPU_XSCALE |
Linus Walleij | e9004f5 | 2013-09-09 11:59:51 +0200 | [diff] [blame] | 429 | select GPIO_IOP |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 430 | select GPIOLIB |
Rob Herring | 13a5045 | 2012-02-07 09:28:22 -0600 | [diff] [blame] | 431 | select NEED_RET_TO_USER |
Russell King | f7e68bb | 2005-05-05 14:49:01 +0100 | [diff] [blame] | 432 | select PCI |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 433 | select PLAT_IOP |
Martin Michlmayr | f999b8b | 2006-02-08 21:09:05 +0000 | [diff] [blame] | 434 | help |
Lennert Buytenhek | 3f7e581 | 2006-09-18 23:10:26 +0100 | [diff] [blame] | 435 | Support for Intel's 80219 and IOP32X (XScale) family of |
| 436 | processors. |
| 437 | |
| 438 | config ARCH_IOP33X |
| 439 | bool "IOP33x-based" |
| 440 | depends on MMU |
Russell King | c750815 | 2008-10-26 10:55:14 +0000 | [diff] [blame] | 441 | select CPU_XSCALE |
Linus Walleij | e9004f5 | 2013-09-09 11:59:51 +0200 | [diff] [blame] | 442 | select GPIO_IOP |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 443 | select GPIOLIB |
Rob Herring | 13a5045 | 2012-02-07 09:28:22 -0600 | [diff] [blame] | 444 | select NEED_RET_TO_USER |
Lennert Buytenhek | 3f7e581 | 2006-09-18 23:10:26 +0100 | [diff] [blame] | 445 | select PCI |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 446 | select PLAT_IOP |
Lennert Buytenhek | 3f7e581 | 2006-09-18 23:10:26 +0100 | [diff] [blame] | 447 | help |
| 448 | Support for Intel's IOP33X (XScale) family of processors. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 449 | |
Russell King | 3b938be | 2007-05-12 11:25:44 +0100 | [diff] [blame] | 450 | config ARCH_IXP4XX |
| 451 | bool "IXP4xx-based" |
Russell King | a4f7e76 | 2006-06-28 12:52:41 +0100 | [diff] [blame] | 452 | depends on MMU |
Rob Herring | 58af4a2 | 2012-03-20 14:33:01 -0500 | [diff] [blame] | 453 | select ARCH_HAS_DMA_SET_COHERENT_MASK |
Russell King | 51aaf81 | 2014-04-22 22:26:27 +0100 | [diff] [blame] | 454 | select ARCH_SUPPORTS_BIG_ENDIAN |
Russell King | 234b6ced | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 455 | select CLKSRC_MMIO |
Russell King | c750815 | 2008-10-26 10:55:14 +0000 | [diff] [blame] | 456 | select CPU_XSCALE |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 457 | select DMABOUNCE if PCI |
Russell King | 3b938be | 2007-05-12 11:25:44 +0100 | [diff] [blame] | 458 | select GENERIC_CLOCKEVENTS |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 459 | select GPIOLIB |
Hans Ulli Kroll | 0b05da7 | 2010-12-02 12:32:15 +0100 | [diff] [blame] | 460 | select MIGHT_HAVE_PCI |
Rob Herring | c334bc1 | 2012-03-04 22:03:33 -0600 | [diff] [blame] | 461 | select NEED_MACH_IO_H |
Florian Fainelli | 9296d94 | 2013-04-09 14:29:26 +0200 | [diff] [blame] | 462 | select USB_EHCI_BIG_ENDIAN_DESC |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 463 | select USB_EHCI_BIG_ENDIAN_MMIO |
Lennert Buytenhek | c471307 | 2006-03-28 21:18:54 +0100 | [diff] [blame] | 464 | help |
Russell King | 3b938be | 2007-05-12 11:25:44 +0100 | [diff] [blame] | 465 | Support for Intel's IXP4XX (XScale) family of processors. |
Lennert Buytenhek | c471307 | 2006-03-28 21:18:54 +0100 | [diff] [blame] | 466 | |
Saeed Bishara | edabd38 | 2009-08-06 15:12:43 +0300 | [diff] [blame] | 467 | config ARCH_DOVE |
| 468 | bool "Marvell Dove" |
Sebastian Hesselbarth | 756b253 | 2013-05-02 19:56:12 +0100 | [diff] [blame] | 469 | select CPU_PJ4 |
Saeed Bishara | edabd38 | 2009-08-06 15:12:43 +0300 | [diff] [blame] | 470 | select GENERIC_CLOCKEVENTS |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 471 | select GPIOLIB |
Russell King | 0f81bd4 | 2012-09-09 20:34:13 +0100 | [diff] [blame] | 472 | select MIGHT_HAVE_PCI |
Arnd Bergmann | b8cd337 | 2015-12-02 22:27:04 +0100 | [diff] [blame] | 473 | select MULTI_IRQ_HANDLER |
Russell King | 171b3f0 | 2013-09-12 21:24:42 +0100 | [diff] [blame] | 474 | select MVEBU_MBUS |
Sebastian Hesselbarth | 9139acd | 2012-11-19 10:39:55 +0100 | [diff] [blame] | 475 | select PINCTRL |
| 476 | select PINCTRL_DOVE |
Thomas Petazzoni | abcda1d | 2012-09-11 14:27:27 +0200 | [diff] [blame] | 477 | select PLAT_ORION_LEGACY |
Arnd Bergmann | 5cdbe5d | 2015-12-02 22:27:05 +0100 | [diff] [blame] | 478 | select SPARSE_IRQ |
Russell King | c5d431e | 2015-12-08 10:58:09 +0000 | [diff] [blame] | 479 | select PM_GENERIC_DOMAINS if PM |
Saeed Bishara | edabd38 | 2009-08-06 15:12:43 +0300 | [diff] [blame] | 480 | help |
| 481 | Support for the Marvell Dove SoC 88AP510 |
| 482 | |
Andrew Victor | c53c9cf | 2007-05-11 21:01:28 +0100 | [diff] [blame] | 483 | config ARCH_KS8695 |
| 484 | bool "Micrel/Kendin KS8695" |
Linus Walleij | c7e783d | 2012-08-29 20:27:22 +0200 | [diff] [blame] | 485 | select CLKSRC_MMIO |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 486 | select CPU_ARM922T |
Linus Walleij | c7e783d | 2012-08-29 20:27:22 +0200 | [diff] [blame] | 487 | select GENERIC_CLOCKEVENTS |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 488 | select GPIOLIB |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 489 | select NEED_MACH_MEMORY_H |
Andrew Victor | c53c9cf | 2007-05-11 21:01:28 +0100 | [diff] [blame] | 490 | help |
| 491 | Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based |
| 492 | System-on-Chip devices. |
| 493 | |
Russell King | 788c970 | 2009-04-26 14:21:59 +0100 | [diff] [blame] | 494 | config ARCH_W90X900 |
| 495 | bool "Nuvoton W90X900 CPU" |
Jean-Christop PLAGNIOL-VILLARD | 6d803ba | 2010-11-17 10:04:33 +0100 | [diff] [blame] | 496 | select CLKDEV_LOOKUP |
Russell King | 6fa5d5f | 2011-05-08 15:34:39 +0100 | [diff] [blame] | 497 | select CLKSRC_MMIO |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 498 | select CPU_ARM926T |
wanzongshun | 58b5369 | 2009-08-14 15:36:44 +0100 | [diff] [blame] | 499 | select GENERIC_CLOCKEVENTS |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 500 | select GPIOLIB |
Lennert Buytenhek | 777f9be | 2008-06-22 22:45:02 +0200 | [diff] [blame] | 501 | help |
wanzongshun | a8bc4ea | 2009-08-14 15:38:29 +0100 | [diff] [blame] | 502 | Support for Nuvoton (Winbond logic dept.) ARM9 processor, |
| 503 | At present, the w90x900 has been renamed nuc900, regarding |
| 504 | the ARM series product line, you can login the following |
| 505 | link address to know more. |
| 506 | |
| 507 | <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/ |
| 508 | ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller> |
Tzachi Perelstein | 585cf17 | 2007-10-23 15:14:41 -0400 | [diff] [blame] | 509 | |
Russell King | 93e2256 | 2012-10-12 14:20:52 +0100 | [diff] [blame] | 510 | config ARCH_LPC32XX |
| 511 | bool "NXP LPC32XX" |
Russell King | 93e2256 | 2012-10-12 14:20:52 +0100 | [diff] [blame] | 512 | select ARM_AMBA |
Russell King | 4073723 | 2011-01-06 22:32:52 +0000 | [diff] [blame] | 513 | select CLKDEV_LOOKUP |
Vladimir Zapolskiy | c227f12 | 2015-11-20 03:05:10 +0200 | [diff] [blame] | 514 | select CLKSRC_LPC32XX |
| 515 | select COMMON_CLK |
Russell King | 93e2256 | 2012-10-12 14:20:52 +0100 | [diff] [blame] | 516 | select CPU_ARM926T |
| 517 | select GENERIC_CLOCKEVENTS |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 518 | select GPIOLIB |
Vladimir Zapolskiy | 8cb17b5 | 2016-04-25 04:00:38 +0300 | [diff] [blame] | 519 | select MULTI_IRQ_HANDLER |
| 520 | select SPARSE_IRQ |
Russell King | 93e2256 | 2012-10-12 14:20:52 +0100 | [diff] [blame] | 521 | select USE_OF |
| 522 | help |
| 523 | Support for the NXP LPC32XX family of processors |
| 524 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 525 | config ARCH_PXA |
eric miao | 2c8086a | 2007-09-11 19:13:17 -0700 | [diff] [blame] | 526 | bool "PXA2xx/PXA3xx-based" |
Russell King | a4f7e76 | 2006-06-28 12:52:41 +0100 | [diff] [blame] | 527 | depends on MMU |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 528 | select ARCH_MTD_XIP |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 529 | select ARM_CPU_SUSPEND if PM |
| 530 | select AUTO_ZRELADDR |
Robert Jarzmik | a1c0a6a | 2015-02-07 22:54:03 +0100 | [diff] [blame] | 531 | select COMMON_CLK |
Jean-Christop PLAGNIOL-VILLARD | 6d803ba | 2010-11-17 10:04:33 +0100 | [diff] [blame] | 532 | select CLKDEV_LOOKUP |
Daniel Lezcano | 389d9b5 | 2015-10-09 15:48:38 +0200 | [diff] [blame] | 533 | select CLKSRC_PXA |
Russell King | 234b6ced | 2011-05-08 14:09:47 +0100 | [diff] [blame] | 534 | select CLKSRC_MMIO |
Robert Jarzmik | 6f6caea | 2014-07-14 18:52:03 +0200 | [diff] [blame] | 535 | select CLKSRC_OF |
Arnd Bergmann | 2f20286 | 2016-01-29 15:06:29 +0100 | [diff] [blame] | 536 | select CPU_XSCALE if !CPU_XSC3 |
Eric Miao | 981d0f3 | 2007-07-24 01:22:43 +0100 | [diff] [blame] | 537 | select GENERIC_CLOCKEVENTS |
Haojian Zhuang | 157d264 | 2011-10-17 20:37:52 +0800 | [diff] [blame] | 538 | select GPIO_PXA |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 539 | select GPIOLIB |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 540 | select HAVE_IDE |
Robert Jarzmik | d6cf30c | 2015-02-14 22:41:56 +0100 | [diff] [blame] | 541 | select IRQ_DOMAIN |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 542 | select MULTI_IRQ_HANDLER |
Eric Miao | bd5ce43 | 2009-01-20 12:06:01 +0800 | [diff] [blame] | 543 | select PLAT_PXA |
Haojian Zhuang | 6ac6b81 | 2010-08-20 15:23:59 +0800 | [diff] [blame] | 544 | select SPARSE_IRQ |
Martin Michlmayr | f999b8b | 2006-02-08 21:09:05 +0000 | [diff] [blame] | 545 | help |
eric miao | 2c8086a | 2007-09-11 19:13:17 -0700 | [diff] [blame] | 546 | Support for Intel/Marvell's PXA2xx/PXA3xx processor line. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 547 | |
| 548 | config ARCH_RPC |
| 549 | bool "RiscPC" |
Russell King | 868e87c | 2015-09-28 10:31:50 +0100 | [diff] [blame] | 550 | depends on MMU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 551 | select ARCH_ACORN |
viro@ZenIV.linux.org.uk | a08b6b7 | 2005-09-06 01:48:42 +0100 | [diff] [blame] | 552 | select ARCH_MAY_HAVE_PC_FDC |
Russell King | 07f841b | 2008-10-01 17:11:06 +0100 | [diff] [blame] | 553 | select ARCH_SPARSEMEM_ENABLE |
John Stultz | 5cfc8ee | 2010-03-24 00:22:36 +0000 | [diff] [blame] | 554 | select ARCH_USES_GETTIMEOFFSET |
Arnd Bergmann | fa04e20 | 2014-02-26 17:39:12 +0100 | [diff] [blame] | 555 | select CPU_SA110 |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 556 | select FIQ |
Arnd Bergmann | d0ee9f4 | 2011-10-01 21:10:32 +0200 | [diff] [blame] | 557 | select HAVE_IDE |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 558 | select HAVE_PATA_PLATFORM |
| 559 | select ISA_DMA_API |
Rob Herring | c334bc1 | 2012-03-04 22:03:33 -0600 | [diff] [blame] | 560 | select NEED_MACH_IO_H |
Nicolas Pitre | 0cdc8b9 | 2011-09-02 22:26:55 -0400 | [diff] [blame] | 561 | select NEED_MACH_MEMORY_H |
Uwe Kleine-König | ce816fa | 2014-04-07 15:39:19 -0700 | [diff] [blame] | 562 | select NO_IOPORT_MAP |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 563 | help |
| 564 | On the Acorn Risc-PC, Linux can support the internal IDE disk and |
| 565 | CD-ROM interface, serial and parallel port, and the floppy drive. |
| 566 | |
| 567 | config ARCH_SA1100 |
| 568 | bool "SA1100-based" |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 569 | select ARCH_MTD_XIP |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 570 | select ARCH_SPARSEMEM_ENABLE |
| 571 | select CLKDEV_LOOKUP |
| 572 | select CLKSRC_MMIO |
Daniel Lezcano | 389d9b5 | 2015-10-09 15:48:38 +0200 | [diff] [blame] | 573 | select CLKSRC_PXA |
| 574 | select CLKSRC_OF if OF |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 575 | select CPU_FREQ |
| 576 | select CPU_SA1100 |
| 577 | select GENERIC_CLOCKEVENTS |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 578 | select GPIOLIB |
Arnd Bergmann | d0ee9f4 | 2011-10-01 21:10:32 +0200 | [diff] [blame] | 579 | select HAVE_IDE |
Dmitry Eremin-Solenikov | 1eca42b | 2014-11-28 15:56:54 +0100 | [diff] [blame] | 580 | select IRQ_DOMAIN |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 581 | select ISA |
Dmitry Eremin-Solenikov | affcab3 | 2014-11-28 15:55:16 +0100 | [diff] [blame] | 582 | select MULTI_IRQ_HANDLER |
Nicolas Pitre | 0cdc8b9 | 2011-09-02 22:26:55 -0400 | [diff] [blame] | 583 | select NEED_MACH_MEMORY_H |
Russell King | 375dec9 | 2012-02-23 14:29:33 +0100 | [diff] [blame] | 584 | select SPARSE_IRQ |
Martin Michlmayr | f999b8b | 2006-02-08 21:09:05 +0000 | [diff] [blame] | 585 | help |
| 586 | Support for StrongARM 11x0 based boards. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 587 | |
Kukjin Kim | b130d5c | 2012-02-03 14:29:23 +0900 | [diff] [blame] | 588 | config ARCH_S3C24XX |
| 589 | bool "Samsung S3C24XX SoCs" |
Arnd Bergmann | 335cce7 | 2014-03-13 14:11:16 +0100 | [diff] [blame] | 590 | select ATAGS |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 591 | select CLKDEV_LOOKUP |
Tomasz Figa | 4280506 | 2013-04-28 02:25:01 +0200 | [diff] [blame] | 592 | select CLKSRC_SAMSUNG_PWM |
Romain Naour | 7f78b6e | 2013-01-09 18:47:04 -0800 | [diff] [blame] | 593 | select GENERIC_CLOCKEVENTS |
Tomasz Figa | 880cf07 | 2013-06-19 01:22:20 +0900 | [diff] [blame] | 594 | select GPIO_SAMSUNG |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 595 | select GPIOLIB |
Kukjin Kim | 20676c1 | 2010-11-13 16:08:32 +0900 | [diff] [blame] | 596 | select HAVE_S3C2410_I2C if I2C |
Kukjin Kim | b130d5c | 2012-02-03 14:29:23 +0900 | [diff] [blame] | 597 | select HAVE_S3C2410_WATCHDOG if WATCHDOG |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 598 | select HAVE_S3C_RTC if RTC_CLASS |
Heiko Stuebner | 17453dd | 2013-03-07 12:38:25 +0900 | [diff] [blame] | 599 | select MULTI_IRQ_HANDLER |
Rob Herring | c334bc1 | 2012-03-04 22:03:33 -0600 | [diff] [blame] | 600 | select NEED_MACH_IO_H |
Tomasz Figa | cd8dc7a | 2013-06-15 09:01:49 +0900 | [diff] [blame] | 601 | select SAMSUNG_ATAGS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 602 | help |
Kukjin Kim | b130d5c | 2012-02-03 14:29:23 +0900 | [diff] [blame] | 603 | Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443 |
| 604 | and S3C2450 SoCs based systems, such as the Simtec Electronics BAST |
| 605 | (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or the |
| 606 | Samsung SMDK2410 development board (and derivatives). |
Ben Dooks | 63b1f51 | 2010-04-30 16:32:26 +0900 | [diff] [blame] | 607 | |
Kevin Hilman | 7c6337e | 2007-04-30 19:37:19 +0100 | [diff] [blame] | 608 | config ARCH_DAVINCI |
| 609 | bool "TI DaVinci" |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 610 | select ARCH_HAS_HOLES_MEMORYMODEL |
Jean-Christop PLAGNIOL-VILLARD | 6d803ba | 2010-11-17 10:04:33 +0100 | [diff] [blame] | 611 | select CLKDEV_LOOKUP |
Arnd Bergmann | ce32c5c | 2016-02-01 21:35:57 +0100 | [diff] [blame] | 612 | select CPU_ARM926T |
David Brownell | 20e9969 | 2009-05-07 09:31:42 -0700 | [diff] [blame] | 613 | select GENERIC_ALLOCATOR |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 614 | select GENERIC_CLOCKEVENTS |
Russell King | dc7ad3b | 2011-05-22 10:01:21 +0100 | [diff] [blame] | 615 | select GENERIC_IRQ_CHIP |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 616 | select GPIOLIB |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 617 | select HAVE_IDE |
Sekhar Nori | 689e331 | 2012-08-28 15:27:52 +0530 | [diff] [blame] | 618 | select USE_OF |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 619 | select ZONE_DMA |
Kevin Hilman | 7c6337e | 2007-04-30 19:37:19 +0100 | [diff] [blame] | 620 | help |
| 621 | Support for TI's DaVinci platform. |
| 622 | |
Tony Lindgren | a069486 | 2013-01-11 11:24:20 -0800 | [diff] [blame] | 623 | config ARCH_OMAP1 |
| 624 | bool "TI OMAP1" |
Arnd Bergmann | 00a3669 | 2012-06-07 18:50:51 -0600 | [diff] [blame] | 625 | depends on MMU |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 626 | select ARCH_HAS_HOLES_MEMORYMODEL |
Tony Lindgren | a069486 | 2013-01-11 11:24:20 -0800 | [diff] [blame] | 627 | select ARCH_OMAP |
Tony Prisk | e9a91de | 2012-08-03 21:00:06 +1200 | [diff] [blame] | 628 | select CLKDEV_LOOKUP |
viresh kumar | cee37e5 | 2010-04-01 12:31:05 +0100 | [diff] [blame] | 629 | select CLKSRC_MMIO |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 630 | select GENERIC_CLOCKEVENTS |
Tony Lindgren | a069486 | 2013-01-11 11:24:20 -0800 | [diff] [blame] | 631 | select GENERIC_IRQ_CHIP |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 632 | select GPIOLIB |
Tony Lindgren | a069486 | 2013-01-11 11:24:20 -0800 | [diff] [blame] | 633 | select HAVE_IDE |
| 634 | select IRQ_DOMAIN |
Tony Lindgren | b694331 | 2015-05-20 09:01:21 -0700 | [diff] [blame] | 635 | select MULTI_IRQ_HANDLER |
Tony Lindgren | a069486 | 2013-01-11 11:24:20 -0800 | [diff] [blame] | 636 | select NEED_MACH_IO_H if PCCARD |
| 637 | select NEED_MACH_MEMORY_H |
Tony Lindgren | 685e2d0 | 2015-05-20 09:01:21 -0700 | [diff] [blame] | 638 | select SPARSE_IRQ |
Alexey Charkov | 21f47fb | 2010-12-23 13:11:21 +0100 | [diff] [blame] | 639 | help |
Tony Lindgren | a069486 | 2013-01-11 11:24:20 -0800 | [diff] [blame] | 640 | Support for older TI OMAP1 (omap7xx, omap15xx or omap16xx) |
Binghua Duan | 02c981c | 2011-07-08 17:40:12 +0800 | [diff] [blame] | 641 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | endchoice |
| 643 | |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 644 | menu "Multiple platform selection" |
| 645 | depends on ARCH_MULTIPLATFORM |
| 646 | |
| 647 | comment "CPU Core family selection" |
| 648 | |
Arnd Bergmann | f8afae4 | 2014-03-25 22:19:00 +0100 | [diff] [blame] | 649 | config ARCH_MULTI_V4 |
| 650 | bool "ARMv4 based platforms (FA526)" |
| 651 | depends on !ARCH_MULTI_V6_V7 |
| 652 | select ARCH_MULTI_V4_V5 |
| 653 | select CPU_FA526 |
| 654 | |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 655 | config ARCH_MULTI_V4T |
| 656 | bool "ARMv4T based platforms (ARM720T, ARM920T, ...)" |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 657 | depends on !ARCH_MULTI_V6_V7 |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 658 | select ARCH_MULTI_V4_V5 |
Arnd Bergmann | 24e860f | 2013-06-03 15:38:58 +0200 | [diff] [blame] | 659 | select CPU_ARM920T if !(CPU_ARM7TDMI || CPU_ARM720T || \ |
| 660 | CPU_ARM740T || CPU_ARM9TDMI || CPU_ARM922T || \ |
| 661 | CPU_ARM925T || CPU_ARM940T) |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 662 | |
| 663 | config ARCH_MULTI_V5 |
| 664 | bool "ARMv5 based platforms (ARM926T, XSCALE, PJ1, ...)" |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 665 | depends on !ARCH_MULTI_V6_V7 |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 666 | select ARCH_MULTI_V4_V5 |
Andrew Lunn | 12567bb | 2014-02-22 20:14:54 +0100 | [diff] [blame] | 667 | select CPU_ARM926T if !(CPU_ARM946E || CPU_ARM1020 || \ |
Arnd Bergmann | 24e860f | 2013-06-03 15:38:58 +0200 | [diff] [blame] | 668 | CPU_ARM1020E || CPU_ARM1022 || CPU_ARM1026 || \ |
| 669 | CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_FEROCEON) |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 670 | |
| 671 | config ARCH_MULTI_V4_V5 |
| 672 | bool |
| 673 | |
| 674 | config ARCH_MULTI_V6 |
Stephen Boyd | 8dda05c | 2013-03-04 15:19:19 -0800 | [diff] [blame] | 675 | bool "ARMv6 based platforms (ARM11)" |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 676 | select ARCH_MULTI_V6_V7 |
Rob Herring | 42f4754 | 2014-01-31 14:26:04 -0600 | [diff] [blame] | 677 | select CPU_V6K |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 678 | |
| 679 | config ARCH_MULTI_V7 |
Stephen Boyd | 8dda05c | 2013-03-04 15:19:19 -0800 | [diff] [blame] | 680 | bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)" |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 681 | default y |
| 682 | select ARCH_MULTI_V6_V7 |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 683 | select CPU_V7 |
Rob Herring | 90bc8ac | 2014-01-31 15:32:02 -0600 | [diff] [blame] | 684 | select HAVE_SMP |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 685 | |
| 686 | config ARCH_MULTI_V6_V7 |
| 687 | bool |
Rob Herring | 9352b05 | 2014-01-31 15:36:10 -0600 | [diff] [blame] | 688 | select MIGHT_HAVE_CACHE_L2X0 |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 689 | |
| 690 | config ARCH_MULTI_CPU_AUTO |
| 691 | def_bool !(ARCH_MULTI_V4 || ARCH_MULTI_V4T || ARCH_MULTI_V6_V7) |
| 692 | select ARCH_MULTI_V5 |
| 693 | |
| 694 | endmenu |
| 695 | |
Rob Herring | 05e2a3d | 2013-12-05 10:04:54 -0600 | [diff] [blame] | 696 | config ARCH_VIRT |
Masahiro Yamada | e324654 | 2015-11-16 12:06:10 +0900 | [diff] [blame] | 697 | bool "Dummy Virtual Machine" |
| 698 | depends on ARCH_MULTI_V7 |
Rob Herring | 4b8b5f2 | 2013-12-05 10:10:34 -0600 | [diff] [blame] | 699 | select ARM_AMBA |
Rob Herring | 05e2a3d | 2013-12-05 10:04:54 -0600 | [diff] [blame] | 700 | select ARM_GIC |
Arnd Bergmann | 3ee8036 | 2016-06-15 15:47:33 -0500 | [diff] [blame] | 701 | select ARM_GIC_V2M if PCI |
Jean-Philippe Brucker | 0b28f1d | 2015-10-01 13:47:18 +0100 | [diff] [blame] | 702 | select ARM_GIC_V3 |
Vladimir Murzin | bb29cec | 2016-11-02 11:54:08 +0000 | [diff] [blame] | 703 | select ARM_GIC_V3_ITS if PCI |
Rob Herring | 05e2a3d | 2013-12-05 10:04:54 -0600 | [diff] [blame] | 704 | select ARM_PSCI |
Rob Herring | 4b8b5f2 | 2013-12-05 10:10:34 -0600 | [diff] [blame] | 705 | select HAVE_ARM_ARCH_TIMER |
Rob Herring | 05e2a3d | 2013-12-05 10:04:54 -0600 | [diff] [blame] | 706 | |
Russell King | ccf50e2 | 2010-03-15 19:03:06 +0000 | [diff] [blame] | 707 | # |
| 708 | # This is sorted alphabetically by mach-* pathname. However, plat-* |
| 709 | # Kconfigs may be included either alphabetically (according to the |
| 710 | # plat- suffix) or along side the corresponding mach-* source. |
| 711 | # |
Gregory CLEMENT | 3e93a22 | 2012-06-04 18:38:56 +0200 | [diff] [blame] | 712 | source "arch/arm/mach-mvebu/Kconfig" |
| 713 | |
Tsahee Zidenberg | 445d9b3 | 2015-03-12 13:53:00 +0200 | [diff] [blame] | 714 | source "arch/arm/mach-alpine/Kconfig" |
| 715 | |
Lars Persson | 590b460 | 2016-02-11 17:06:19 +0100 | [diff] [blame] | 716 | source "arch/arm/mach-artpec/Kconfig" |
| 717 | |
Oleksij Rempel | d9bfc86 | 2014-11-24 12:08:27 +0100 | [diff] [blame] | 718 | source "arch/arm/mach-asm9260/Kconfig" |
| 719 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 720 | source "arch/arm/mach-at91/Kconfig" |
| 721 | |
Anders Berg | 1d22924e | 2014-05-23 11:08:35 +0200 | [diff] [blame] | 722 | source "arch/arm/mach-axxia/Kconfig" |
| 723 | |
Christian Daudt | 8ac49e0 | 2012-11-19 09:46:10 -0800 | [diff] [blame] | 724 | source "arch/arm/mach-bcm/Kconfig" |
| 725 | |
Sebastian Hesselbarth | 1c37fa1 | 2013-09-09 14:36:19 +0200 | [diff] [blame] | 726 | source "arch/arm/mach-berlin/Kconfig" |
| 727 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 728 | source "arch/arm/mach-clps711x/Kconfig" |
| 729 | |
Anton Vorontsov | d94f944 | 2010-03-25 17:12:41 +0300 | [diff] [blame] | 730 | source "arch/arm/mach-cns3xxx/Kconfig" |
| 731 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 732 | source "arch/arm/mach-davinci/Kconfig" |
| 733 | |
Baruch Siach | df8d742 | 2015-01-14 10:40:30 +0200 | [diff] [blame] | 734 | source "arch/arm/mach-digicolor/Kconfig" |
| 735 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 736 | source "arch/arm/mach-dove/Kconfig" |
| 737 | |
Lennert Buytenhek | e7736d4 | 2006-03-20 17:10:13 +0000 | [diff] [blame] | 738 | source "arch/arm/mach-ep93xx/Kconfig" |
| 739 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 740 | source "arch/arm/mach-footbridge/Kconfig" |
| 741 | |
Paulius Zaleckas | 59d3a19 | 2009-03-26 10:06:08 +0200 | [diff] [blame] | 742 | source "arch/arm/mach-gemini/Kconfig" |
| 743 | |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 744 | source "arch/arm/mach-highbank/Kconfig" |
| 745 | |
Haojian Zhuang | 389ee0c | 2013-12-20 10:52:56 +0800 | [diff] [blame] | 746 | source "arch/arm/mach-hisi/Kconfig" |
| 747 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 748 | source "arch/arm/mach-integrator/Kconfig" |
| 749 | |
Lennert Buytenhek | 3f7e581 | 2006-09-18 23:10:26 +0100 | [diff] [blame] | 750 | source "arch/arm/mach-iop32x/Kconfig" |
| 751 | |
| 752 | source "arch/arm/mach-iop33x/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 753 | |
Dan Williams | 285f5fa | 2006-12-07 02:59:39 +0100 | [diff] [blame] | 754 | source "arch/arm/mach-iop13xx/Kconfig" |
| 755 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 756 | source "arch/arm/mach-ixp4xx/Kconfig" |
| 757 | |
Santosh Shilimkar | 828989a | 2013-06-10 11:27:13 -0400 | [diff] [blame] | 758 | source "arch/arm/mach-keystone/Kconfig" |
| 759 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 760 | source "arch/arm/mach-ks8695/Kconfig" |
| 761 | |
Carlo Caione | 3b8f503 | 2014-09-10 22:16:59 +0200 | [diff] [blame] | 762 | source "arch/arm/mach-meson/Kconfig" |
| 763 | |
Jonas Jensen | 17723fd3 | 2013-12-18 13:58:45 +0100 | [diff] [blame] | 764 | source "arch/arm/mach-moxart/Kconfig" |
| 765 | |
Joel Stanley | 8c2ed9b | 2016-03-21 17:22:31 +1030 | [diff] [blame] | 766 | source "arch/arm/mach-aspeed/Kconfig" |
| 767 | |
Stanislav Samsonov | 794d15b | 2008-06-22 22:45:10 +0200 | [diff] [blame] | 768 | source "arch/arm/mach-mv78xx0/Kconfig" |
| 769 | |
Shawn Guo | 3995eb8 | 2012-09-13 19:48:07 +0800 | [diff] [blame] | 770 | source "arch/arm/mach-imx/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 771 | |
Matthias Brugger | f682a21 | 2014-05-13 01:06:13 +0200 | [diff] [blame] | 772 | source "arch/arm/mach-mediatek/Kconfig" |
| 773 | |
Shawn Guo | 1d3f33d | 2010-12-13 20:55:03 +0800 | [diff] [blame] | 774 | source "arch/arm/mach-mxs/Kconfig" |
| 775 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 776 | source "arch/arm/mach-netx/Kconfig" |
Eric Miao | 49cbe78 | 2009-01-20 14:15:18 +0800 | [diff] [blame] | 777 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 778 | source "arch/arm/mach-nomadik/Kconfig" |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 779 | |
Daniel Tang | 9851ca5 | 2013-06-11 18:40:17 +1000 | [diff] [blame] | 780 | source "arch/arm/mach-nspire/Kconfig" |
| 781 | |
Tony Lindgren | d48af15 | 2005-07-10 19:58:17 +0100 | [diff] [blame] | 782 | source "arch/arm/plat-omap/Kconfig" |
| 783 | |
| 784 | source "arch/arm/mach-omap1/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 785 | |
Tony Lindgren | 1dbae81 | 2005-11-10 14:26:51 +0000 | [diff] [blame] | 786 | source "arch/arm/mach-omap2/Kconfig" |
| 787 | |
Lennert Buytenhek | 9dd0b19 | 2008-03-27 14:51:41 -0400 | [diff] [blame] | 788 | source "arch/arm/mach-orion5x/Kconfig" |
Tzachi Perelstein | 585cf17 | 2007-10-23 15:14:41 -0400 | [diff] [blame] | 789 | |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 790 | source "arch/arm/mach-picoxcell/Kconfig" |
| 791 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 792 | source "arch/arm/mach-pxa/Kconfig" |
| 793 | source "arch/arm/plat-pxa/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 794 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 795 | source "arch/arm/mach-mmp/Kconfig" |
| 796 | |
Neil Armstrong | 8c9184b | 2016-03-03 10:42:15 +0100 | [diff] [blame] | 797 | source "arch/arm/mach-oxnas/Kconfig" |
| 798 | |
Kumar Gala | 8fc1b0f | 2014-01-21 17:14:10 -0600 | [diff] [blame] | 799 | source "arch/arm/mach-qcom/Kconfig" |
| 800 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 801 | source "arch/arm/mach-realview/Kconfig" |
| 802 | |
Heiko Stuebner | d63dc05 | 2013-06-02 23:09:41 +0200 | [diff] [blame] | 803 | source "arch/arm/mach-rockchip/Kconfig" |
| 804 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 805 | source "arch/arm/mach-sa1100/Kconfig" |
Saeed Bishara | edabd38 | 2009-08-06 15:12:43 +0300 | [diff] [blame] | 806 | |
Rob Herring | 387798b | 2012-09-06 13:41:12 -0500 | [diff] [blame] | 807 | source "arch/arm/mach-socfpga/Kconfig" |
| 808 | |
Arnd Bergmann | a7ed099 | 2012-12-02 15:12:47 +0100 | [diff] [blame] | 809 | source "arch/arm/mach-spear/Kconfig" |
Ben Dooks | a21765a | 2007-02-11 18:31:01 +0100 | [diff] [blame] | 810 | |
Srinivas Kandagatla | 65ebcc1 | 2013-06-25 12:15:10 +0100 | [diff] [blame] | 811 | source "arch/arm/mach-sti/Kconfig" |
| 812 | |
Alexandre TORGUE | bcb84fb | 2017-01-30 17:33:13 +0100 | [diff] [blame] | 813 | source "arch/arm/mach-stm32/Kconfig" |
| 814 | |
Kukjin Kim | 85fd6d6 | 2012-02-06 09:38:19 +0900 | [diff] [blame] | 815 | source "arch/arm/mach-s3c24xx/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 816 | |
Ben Dooks | 431107e | 2010-01-26 10:11:04 +0900 | [diff] [blame] | 817 | source "arch/arm/mach-s3c64xx/Kconfig" |
Ben Dooks | a08ab63 | 2008-10-21 14:06:39 +0100 | [diff] [blame] | 818 | |
Kukjin Kim | 170f4e4 | 2010-02-24 16:40:44 +0900 | [diff] [blame] | 819 | source "arch/arm/mach-s5pv210/Kconfig" |
| 820 | |
Kukjin Kim | 8301457 | 2011-11-06 13:54:56 +0900 | [diff] [blame] | 821 | source "arch/arm/mach-exynos/Kconfig" |
Rob Herring | e509b28 | 2014-06-10 09:06:09 -0500 | [diff] [blame] | 822 | source "arch/arm/plat-samsung/Kconfig" |
Changhwan Youn | cc0e72b | 2010-07-16 12:15:38 +0900 | [diff] [blame] | 823 | |
Russell King | 882d01f | 2010-03-02 23:40:15 +0000 | [diff] [blame] | 824 | source "arch/arm/mach-shmobile/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 825 | |
Maxime Ripard | 3b52634 | 2012-11-08 12:40:16 +0100 | [diff] [blame] | 826 | source "arch/arm/mach-sunxi/Kconfig" |
| 827 | |
Barry Song | 156a099 | 2012-08-23 13:41:58 +0800 | [diff] [blame] | 828 | source "arch/arm/mach-prima2/Kconfig" |
| 829 | |
Marc Gonzalez | d6de5b0 | 2015-12-15 10:41:13 +0100 | [diff] [blame] | 830 | source "arch/arm/mach-tango/Kconfig" |
| 831 | |
Erik Gilling | c5f8006 | 2010-01-21 16:53:02 -0800 | [diff] [blame] | 832 | source "arch/arm/mach-tegra/Kconfig" |
| 833 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 834 | source "arch/arm/mach-u300/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 835 | |
Masahiro Yamada | ba56a98 | 2015-05-08 13:07:11 +0900 | [diff] [blame] | 836 | source "arch/arm/mach-uniphier/Kconfig" |
| 837 | |
Russell King | 95b8f20 | 2010-01-14 11:43:54 +0000 | [diff] [blame] | 838 | source "arch/arm/mach-ux500/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 839 | |
| 840 | source "arch/arm/mach-versatile/Kconfig" |
| 841 | |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 842 | source "arch/arm/mach-vexpress/Kconfig" |
Russell King | 420c34e | 2011-01-18 20:08:06 +0000 | [diff] [blame] | 843 | source "arch/arm/plat-versatile/Kconfig" |
Russell King | ceade89 | 2010-02-11 21:44:53 +0000 | [diff] [blame] | 844 | |
Tony Prisk | 6f35f9a | 2012-10-11 20:13:09 +1300 | [diff] [blame] | 845 | source "arch/arm/mach-vt8500/Kconfig" |
| 846 | |
wanzongshun | 7ec80dd | 2008-12-03 03:55:38 +0100 | [diff] [blame] | 847 | source "arch/arm/mach-w90x900/Kconfig" |
| 848 | |
Jun Nie | acede51 | 2015-04-28 17:18:05 +0800 | [diff] [blame] | 849 | source "arch/arm/mach-zx/Kconfig" |
| 850 | |
Josh Cartwright | 9a45eb6 | 2012-11-19 11:38:29 -0600 | [diff] [blame] | 851 | source "arch/arm/mach-zynq/Kconfig" |
| 852 | |
Stefan Agner | 499f164 | 2015-05-21 00:35:44 +0200 | [diff] [blame] | 853 | # ARMv7-M architecture |
| 854 | config ARCH_EFM32 |
| 855 | bool "Energy Micro efm32" |
| 856 | depends on ARM_SINGLE_ARMV7M |
Linus Walleij | 5c34a4e | 2016-06-02 14:10:16 +0200 | [diff] [blame] | 857 | select GPIOLIB |
Stefan Agner | 499f164 | 2015-05-21 00:35:44 +0200 | [diff] [blame] | 858 | help |
| 859 | Support for Energy Micro's (now Silicon Labs) efm32 Giant Gecko |
| 860 | processors. |
| 861 | |
| 862 | config ARCH_LPC18XX |
| 863 | bool "NXP LPC18xx/LPC43xx" |
| 864 | depends on ARM_SINGLE_ARMV7M |
| 865 | select ARCH_HAS_RESET_CONTROLLER |
| 866 | select ARM_AMBA |
| 867 | select CLKSRC_LPC32XX |
| 868 | select PINCTRL |
| 869 | help |
| 870 | Support for NXP's LPC18xx Cortex-M3 and LPC43xx Cortex-M4 |
| 871 | high performance microcontrollers. |
| 872 | |
Vladimir Murzin | 1847119 | 2016-04-25 09:49:13 +0100 | [diff] [blame] | 873 | config ARCH_MPS2 |
Baruch Siach | 17bd274 | 2016-07-17 11:35:29 +0300 | [diff] [blame] | 874 | bool "ARM MPS2 platform" |
Vladimir Murzin | 1847119 | 2016-04-25 09:49:13 +0100 | [diff] [blame] | 875 | depends on ARM_SINGLE_ARMV7M |
| 876 | select ARM_AMBA |
| 877 | select CLKSRC_MPS2 |
| 878 | help |
| 879 | Support for Cortex-M Prototyping System (or V2M-MPS2) which comes |
| 880 | with a range of available cores like Cortex-M3/M4/M7. |
| 881 | |
| 882 | Please, note that depends which Application Note is used memory map |
| 883 | for the platform may vary, so adjustment of RAM base might be needed. |
| 884 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 885 | # Definitions to make life easier |
| 886 | config ARCH_ACORN |
| 887 | bool |
| 888 | |
Lennert Buytenhek | 7ae1f7e | 2006-09-18 23:12:53 +0100 | [diff] [blame] | 889 | config PLAT_IOP |
| 890 | bool |
Mikael Pettersson | 469d3044 | 2009-10-29 11:46:54 -0700 | [diff] [blame] | 891 | select GENERIC_CLOCKEVENTS |
Lennert Buytenhek | 7ae1f7e | 2006-09-18 23:12:53 +0100 | [diff] [blame] | 892 | |
Lennert Buytenhek | 69b02f6 | 2008-03-27 14:51:39 -0400 | [diff] [blame] | 893 | config PLAT_ORION |
| 894 | bool |
Russell King | bfe45e0 | 2011-05-08 15:33:30 +0100 | [diff] [blame] | 895 | select CLKSRC_MMIO |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 896 | select COMMON_CLK |
Russell King | dc7ad3b | 2011-05-22 10:01:21 +0100 | [diff] [blame] | 897 | select GENERIC_IRQ_CHIP |
Andrew Lunn | 278b45b | 2012-06-27 13:40:04 +0200 | [diff] [blame] | 898 | select IRQ_DOMAIN |
Lennert Buytenhek | 69b02f6 | 2008-03-27 14:51:39 -0400 | [diff] [blame] | 899 | |
Thomas Petazzoni | abcda1d | 2012-09-11 14:27:27 +0200 | [diff] [blame] | 900 | config PLAT_ORION_LEGACY |
| 901 | bool |
| 902 | select PLAT_ORION |
| 903 | |
Eric Miao | bd5ce43 | 2009-01-20 12:06:01 +0800 | [diff] [blame] | 904 | config PLAT_PXA |
| 905 | bool |
| 906 | |
Russell King | f4b8b31 | 2010-01-14 12:48:06 +0000 | [diff] [blame] | 907 | config PLAT_VERSATILE |
| 908 | bool |
| 909 | |
Alexandre Courbot | d9a1bea | 2013-11-24 15:30:46 +0900 | [diff] [blame] | 910 | source "arch/arm/firmware/Kconfig" |
| 911 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 912 | source arch/arm/mm/Kconfig |
| 913 | |
Lennert Buytenhek | afe4b25 | 2006-12-03 18:51:14 +0100 | [diff] [blame] | 914 | config IWMMXT |
Sebastian Hesselbarth | d93003e | 2014-04-24 22:58:30 +0100 | [diff] [blame] | 915 | bool "Enable iWMMXt support" |
| 916 | depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4 || CPU_PJ4B |
| 917 | default y if PXA27x || PXA3xx || ARCH_MMP || CPU_PJ4 || CPU_PJ4B |
Lennert Buytenhek | afe4b25 | 2006-12-03 18:51:14 +0100 | [diff] [blame] | 918 | help |
| 919 | Enable support for iWMMXt context switching at run time if |
| 920 | running on a CPU that supports it. |
| 921 | |
eric miao | 5210864 | 2010-12-13 09:42:34 +0100 | [diff] [blame] | 922 | config MULTI_IRQ_HANDLER |
| 923 | bool |
| 924 | help |
| 925 | Allow each machine to specify it's own IRQ handler at run time. |
| 926 | |
Hyok S. Choi | 3b93e7b | 2006-06-22 11:48:56 +0100 | [diff] [blame] | 927 | if !MMU |
| 928 | source "arch/arm/Kconfig-nommu" |
| 929 | endif |
| 930 | |
Gregory CLEMENT | 3e0a07f | 2013-06-23 10:17:11 +0100 | [diff] [blame] | 931 | config PJ4B_ERRATA_4742 |
| 932 | bool "PJ4B Errata 4742: IDLE Wake Up Commands can Cause the CPU Core to Cease Operation" |
| 933 | depends on CPU_PJ4B && MACH_ARMADA_370 |
| 934 | default y |
| 935 | help |
| 936 | When coming out of either a Wait for Interrupt (WFI) or a Wait for |
| 937 | Event (WFE) IDLE states, a specific timing sensitivity exists between |
| 938 | the retiring WFI/WFE instructions and the newly issued subsequent |
| 939 | instructions. This sensitivity can result in a CPU hang scenario. |
| 940 | Workaround: |
| 941 | The software must insert either a Data Synchronization Barrier (DSB) |
| 942 | or Data Memory Barrier (DMB) command immediately after the WFI/WFE |
| 943 | instruction |
| 944 | |
Will Deacon | f0c4b8d | 2012-04-20 17:20:08 +0100 | [diff] [blame] | 945 | config ARM_ERRATA_326103 |
| 946 | bool "ARM errata: FSR write bit incorrect on a SWP to read-only memory" |
| 947 | depends on CPU_V6 |
| 948 | help |
| 949 | Executing a SWP instruction to read-only memory does not set bit 11 |
| 950 | of the FSR on the ARM 1136 prior to r1p0. This causes the kernel to |
| 951 | treat the access as a read, preventing a COW from occurring and |
| 952 | causing the faulting task to livelock. |
| 953 | |
Catalin Marinas | 9cba3cc | 2009-04-30 17:06:03 +0100 | [diff] [blame] | 954 | config ARM_ERRATA_411920 |
| 955 | bool "ARM errata: Invalidation of the Instruction Cache operation can fail" |
Russell King | e399b1a | 2011-01-17 15:08:32 +0000 | [diff] [blame] | 956 | depends on CPU_V6 || CPU_V6K |
Catalin Marinas | 9cba3cc | 2009-04-30 17:06:03 +0100 | [diff] [blame] | 957 | help |
| 958 | Invalidation of the Instruction Cache operation can |
| 959 | fail. This erratum is present in 1136 (before r1p4), 1156 and 1176. |
| 960 | It does not affect the MPCore. This option enables the ARM Ltd. |
| 961 | recommended workaround. |
| 962 | |
Catalin Marinas | 7ce236f | 2009-04-30 17:06:09 +0100 | [diff] [blame] | 963 | config ARM_ERRATA_430973 |
| 964 | bool "ARM errata: Stale prediction on replaced interworking branch" |
| 965 | depends on CPU_V7 |
| 966 | help |
| 967 | This option enables the workaround for the 430973 Cortex-A8 |
Russell King | 79403cd | 2015-04-13 16:14:37 +0100 | [diff] [blame] | 968 | r1p* erratum. If a code sequence containing an ARM/Thumb |
Catalin Marinas | 7ce236f | 2009-04-30 17:06:09 +0100 | [diff] [blame] | 969 | interworking branch is replaced with another code sequence at the |
| 970 | same virtual address, whether due to self-modifying code or virtual |
| 971 | to physical address re-mapping, Cortex-A8 does not recover from the |
| 972 | stale interworking branch prediction. This results in Cortex-A8 |
| 973 | executing the new code sequence in the incorrect ARM or Thumb state. |
| 974 | The workaround enables the BTB/BTAC operations by setting ACTLR.IBE |
| 975 | and also flushes the branch target cache at every context switch. |
| 976 | Note that setting specific bits in the ACTLR register may not be |
| 977 | available in non-secure mode. |
| 978 | |
Catalin Marinas | 855c551 | 2009-04-30 17:06:15 +0100 | [diff] [blame] | 979 | config ARM_ERRATA_458693 |
| 980 | bool "ARM errata: Processor deadlock when a false hazard is created" |
| 981 | depends on CPU_V7 |
Rob Herring | 62e4d35 | 2012-12-21 22:42:40 +0100 | [diff] [blame] | 982 | depends on !ARCH_MULTIPLATFORM |
Catalin Marinas | 855c551 | 2009-04-30 17:06:15 +0100 | [diff] [blame] | 983 | help |
| 984 | This option enables the workaround for the 458693 Cortex-A8 (r2p0) |
| 985 | erratum. For very specific sequences of memory operations, it is |
| 986 | possible for a hazard condition intended for a cache line to instead |
| 987 | be incorrectly associated with a different cache line. This false |
| 988 | hazard might then cause a processor deadlock. The workaround enables |
| 989 | the L1 caching of the NEON accesses and disables the PLD instruction |
| 990 | in the ACTLR register. Note that setting specific bits in the ACTLR |
| 991 | register may not be available in non-secure mode. |
| 992 | |
Catalin Marinas | 0516e46 | 2009-04-30 17:06:20 +0100 | [diff] [blame] | 993 | config ARM_ERRATA_460075 |
| 994 | bool "ARM errata: Data written to the L2 cache can be overwritten with stale data" |
| 995 | depends on CPU_V7 |
Rob Herring | 62e4d35 | 2012-12-21 22:42:40 +0100 | [diff] [blame] | 996 | depends on !ARCH_MULTIPLATFORM |
Catalin Marinas | 0516e46 | 2009-04-30 17:06:20 +0100 | [diff] [blame] | 997 | help |
| 998 | This option enables the workaround for the 460075 Cortex-A8 (r2p0) |
| 999 | erratum. Any asynchronous access to the L2 cache may encounter a |
| 1000 | situation in which recent store transactions to the L2 cache are lost |
| 1001 | and overwritten with stale memory contents from external memory. The |
| 1002 | workaround disables the write-allocate mode for the L2 cache via the |
| 1003 | ACTLR register. Note that setting specific bits in the ACTLR register |
| 1004 | may not be available in non-secure mode. |
| 1005 | |
Will Deacon | 9f05027 | 2010-09-14 09:51:43 +0100 | [diff] [blame] | 1006 | config ARM_ERRATA_742230 |
| 1007 | bool "ARM errata: DMB operation may be faulty" |
| 1008 | depends on CPU_V7 && SMP |
Rob Herring | 62e4d35 | 2012-12-21 22:42:40 +0100 | [diff] [blame] | 1009 | depends on !ARCH_MULTIPLATFORM |
Will Deacon | 9f05027 | 2010-09-14 09:51:43 +0100 | [diff] [blame] | 1010 | help |
| 1011 | This option enables the workaround for the 742230 Cortex-A9 |
| 1012 | (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction |
| 1013 | between two write operations may not ensure the correct visibility |
| 1014 | ordering of the two writes. This workaround sets a specific bit in |
| 1015 | the diagnostic register of the Cortex-A9 which causes the DMB |
| 1016 | instruction to behave as a DSB, ensuring the correct behaviour of |
| 1017 | the two writes. |
| 1018 | |
Will Deacon | a672e99 | 2010-09-14 09:53:02 +0100 | [diff] [blame] | 1019 | config ARM_ERRATA_742231 |
| 1020 | bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption" |
| 1021 | depends on CPU_V7 && SMP |
Rob Herring | 62e4d35 | 2012-12-21 22:42:40 +0100 | [diff] [blame] | 1022 | depends on !ARCH_MULTIPLATFORM |
Will Deacon | a672e99 | 2010-09-14 09:53:02 +0100 | [diff] [blame] | 1023 | help |
| 1024 | This option enables the workaround for the 742231 Cortex-A9 |
| 1025 | (r2p0..r2p2) erratum. Under certain conditions, specific to the |
| 1026 | Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode, |
| 1027 | accessing some data located in the same cache line, may get corrupted |
| 1028 | data due to bad handling of the address hazard when the line gets |
| 1029 | replaced from one of the CPUs at the same time as another CPU is |
| 1030 | accessing it. This workaround sets specific bits in the diagnostic |
| 1031 | register of the Cortex-A9 which reduces the linefill issuing |
| 1032 | capabilities of the processor. |
| 1033 | |
Jon Medhurst | 6915579 | 2013-06-07 10:35:35 +0100 | [diff] [blame] | 1034 | config ARM_ERRATA_643719 |
| 1035 | bool "ARM errata: LoUIS bit field in CLIDR register is incorrect" |
| 1036 | depends on CPU_V7 && SMP |
Russell King | e5a5de4 | 2015-04-02 23:58:55 +0100 | [diff] [blame] | 1037 | default y |
Jon Medhurst | 6915579 | 2013-06-07 10:35:35 +0100 | [diff] [blame] | 1038 | help |
| 1039 | This option enables the workaround for the 643719 Cortex-A9 (prior to |
| 1040 | r1p0) erratum. On affected cores the LoUIS bit field of the CLIDR |
| 1041 | register returns zero when it should return one. The workaround |
| 1042 | corrects this value, ensuring cache maintenance operations which use |
| 1043 | it behave as intended and avoiding data corruption. |
| 1044 | |
Will Deacon | cdf357f | 2010-08-05 11:20:51 +0100 | [diff] [blame] | 1045 | config ARM_ERRATA_720789 |
| 1046 | bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID" |
Dave Martin | e66dc74 | 2011-12-08 13:37:46 +0100 | [diff] [blame] | 1047 | depends on CPU_V7 |
Will Deacon | cdf357f | 2010-08-05 11:20:51 +0100 | [diff] [blame] | 1048 | help |
| 1049 | This option enables the workaround for the 720789 Cortex-A9 (prior to |
| 1050 | r2p0) erratum. A faulty ASID can be sent to the other CPUs for the |
| 1051 | broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS. |
| 1052 | As a consequence of this erratum, some TLB entries which should be |
| 1053 | invalidated are not, resulting in an incoherency in the system page |
| 1054 | tables. The workaround changes the TLB flushing routines to invalidate |
| 1055 | entries regardless of the ASID. |
Will Deacon | 475d92f | 2010-09-28 14:02:02 +0100 | [diff] [blame] | 1056 | |
| 1057 | config ARM_ERRATA_743622 |
| 1058 | bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption" |
| 1059 | depends on CPU_V7 |
Rob Herring | 62e4d35 | 2012-12-21 22:42:40 +0100 | [diff] [blame] | 1060 | depends on !ARCH_MULTIPLATFORM |
Will Deacon | 475d92f | 2010-09-28 14:02:02 +0100 | [diff] [blame] | 1061 | help |
| 1062 | This option enables the workaround for the 743622 Cortex-A9 |
Will Deacon | efbc74a | 2012-02-24 12:12:38 +0100 | [diff] [blame] | 1063 | (r2p*) erratum. Under very rare conditions, a faulty |
Will Deacon | 475d92f | 2010-09-28 14:02:02 +0100 | [diff] [blame] | 1064 | optimisation in the Cortex-A9 Store Buffer may lead to data |
| 1065 | corruption. This workaround sets a specific bit in the diagnostic |
| 1066 | register of the Cortex-A9 which disables the Store Buffer |
| 1067 | optimisation, preventing the defect from occurring. This has no |
| 1068 | visible impact on the overall performance or power consumption of the |
| 1069 | processor. |
| 1070 | |
Will Deacon | 9a27c27 | 2011-02-18 16:36:35 +0100 | [diff] [blame] | 1071 | config ARM_ERRATA_751472 |
| 1072 | bool "ARM errata: Interrupted ICIALLUIS may prevent completion of broadcasted operation" |
Dave Martin | ba90c51 | 2011-12-08 13:41:06 +0100 | [diff] [blame] | 1073 | depends on CPU_V7 |
Rob Herring | 62e4d35 | 2012-12-21 22:42:40 +0100 | [diff] [blame] | 1074 | depends on !ARCH_MULTIPLATFORM |
Will Deacon | 9a27c27 | 2011-02-18 16:36:35 +0100 | [diff] [blame] | 1075 | help |
| 1076 | This option enables the workaround for the 751472 Cortex-A9 (prior |
| 1077 | to r3p0) erratum. An interrupted ICIALLUIS operation may prevent the |
| 1078 | completion of a following broadcasted operation if the second |
| 1079 | operation is received by a CPU before the ICIALLUIS has completed, |
| 1080 | potentially leading to corrupted entries in the cache or TLB. |
| 1081 | |
Will Deacon | fcbdc5fe | 2011-02-28 18:15:16 +0100 | [diff] [blame] | 1082 | config ARM_ERRATA_754322 |
| 1083 | bool "ARM errata: possible faulty MMU translations following an ASID switch" |
| 1084 | depends on CPU_V7 |
| 1085 | help |
| 1086 | This option enables the workaround for the 754322 Cortex-A9 (r2p*, |
| 1087 | r3p*) erratum. A speculative memory access may cause a page table walk |
| 1088 | which starts prior to an ASID switch but completes afterwards. This |
| 1089 | can populate the micro-TLB with a stale entry which may be hit with |
| 1090 | the new ASID. This workaround places two dsb instructions in the mm |
| 1091 | switching code so that no page table walks can cross the ASID switch. |
| 1092 | |
Will Deacon | 5dab26a | 2011-03-04 12:38:54 +0100 | [diff] [blame] | 1093 | config ARM_ERRATA_754327 |
| 1094 | bool "ARM errata: no automatic Store Buffer drain" |
| 1095 | depends on CPU_V7 && SMP |
| 1096 | help |
| 1097 | This option enables the workaround for the 754327 Cortex-A9 (prior to |
| 1098 | r2p0) erratum. The Store Buffer does not have any automatic draining |
| 1099 | mechanism and therefore a livelock may occur if an external agent |
| 1100 | continuously polls a memory location waiting to observe an update. |
| 1101 | This workaround defines cpu_relax() as smp_mb(), preventing correctly |
| 1102 | written polling loops from denying visibility of updates to memory. |
| 1103 | |
Catalin Marinas | 145e10e | 2011-08-15 11:04:41 +0100 | [diff] [blame] | 1104 | config ARM_ERRATA_364296 |
| 1105 | bool "ARM errata: Possible cache data corruption with hit-under-miss enabled" |
Fabio Estevam | fd83247 | 2013-07-09 18:34:01 +0100 | [diff] [blame] | 1106 | depends on CPU_V6 |
Catalin Marinas | 145e10e | 2011-08-15 11:04:41 +0100 | [diff] [blame] | 1107 | help |
| 1108 | This options enables the workaround for the 364296 ARM1136 |
| 1109 | r0p2 erratum (possible cache data corruption with |
| 1110 | hit-under-miss enabled). It sets the undocumented bit 31 in |
| 1111 | the auxiliary control register and the FI bit in the control |
| 1112 | register, thus disabling hit-under-miss without putting the |
| 1113 | processor into full low interrupt latency mode. ARM11MPCore |
| 1114 | is not affected. |
| 1115 | |
Will Deacon | f630c1b | 2011-09-15 11:45:15 +0100 | [diff] [blame] | 1116 | config ARM_ERRATA_764369 |
| 1117 | bool "ARM errata: Data cache line maintenance operation by MVA may not succeed" |
| 1118 | depends on CPU_V7 && SMP |
| 1119 | help |
| 1120 | This option enables the workaround for erratum 764369 |
| 1121 | affecting Cortex-A9 MPCore with two or more processors (all |
| 1122 | current revisions). Under certain timing circumstances, a data |
| 1123 | cache line maintenance operation by MVA targeting an Inner |
| 1124 | Shareable memory region may fail to proceed up to either the |
| 1125 | Point of Coherency or to the Point of Unification of the |
| 1126 | system. This workaround adds a DSB instruction before the |
| 1127 | relevant cache maintenance functions and sets a specific bit |
| 1128 | in the diagnostic control register of the SCU. |
| 1129 | |
Simon Horman | 7253b85 | 2012-09-28 02:12:45 +0100 | [diff] [blame] | 1130 | config ARM_ERRATA_775420 |
| 1131 | bool "ARM errata: A data cache maintenance operation which aborts, might lead to deadlock" |
| 1132 | depends on CPU_V7 |
| 1133 | help |
| 1134 | This option enables the workaround for the 775420 Cortex-A9 (r2p2, |
| 1135 | r2p6,r2p8,r2p10,r3p0) erratum. In case a date cache maintenance |
| 1136 | operation aborts with MMU exception, it might cause the processor |
| 1137 | to deadlock. This workaround puts DSB before executing ISB if |
| 1138 | an abort may occur on cache maintenance. |
| 1139 | |
Catalin Marinas | 93dc688 | 2013-03-26 23:35:04 +0100 | [diff] [blame] | 1140 | config ARM_ERRATA_798181 |
| 1141 | bool "ARM errata: TLBI/DSB failure on Cortex-A15" |
| 1142 | depends on CPU_V7 && SMP |
| 1143 | help |
| 1144 | On Cortex-A15 (r0p0..r3p2) the TLBI*IS/DSB operations are not |
| 1145 | adequately shooting down all use of the old entries. This |
| 1146 | option enables the Linux kernel workaround for this erratum |
| 1147 | which sends an IPI to the CPUs that are running the same ASID |
| 1148 | as the one being invalidated. |
| 1149 | |
Will Deacon | 84b6504 | 2013-08-20 17:29:55 +0100 | [diff] [blame] | 1150 | config ARM_ERRATA_773022 |
| 1151 | bool "ARM errata: incorrect instructions may be executed from loop buffer" |
| 1152 | depends on CPU_V7 |
| 1153 | help |
| 1154 | This option enables the workaround for the 773022 Cortex-A15 |
| 1155 | (up to r0p4) erratum. In certain rare sequences of code, the |
| 1156 | loop buffer may deliver incorrect instructions. This |
| 1157 | workaround disables the loop buffer to avoid the erratum. |
| 1158 | |
Doug Anderson | 62c0f4a | 2016-04-07 00:25:00 +0100 | [diff] [blame] | 1159 | config ARM_ERRATA_818325_852422 |
| 1160 | bool "ARM errata: A12: some seqs of opposed cond code instrs => deadlock or corruption" |
| 1161 | depends on CPU_V7 |
| 1162 | help |
| 1163 | This option enables the workaround for: |
| 1164 | - Cortex-A12 818325: Execution of an UNPREDICTABLE STR or STM |
| 1165 | instruction might deadlock. Fixed in r0p1. |
| 1166 | - Cortex-A12 852422: Execution of a sequence of instructions might |
| 1167 | lead to either a data corruption or a CPU deadlock. Not fixed in |
| 1168 | any Cortex-A12 cores yet. |
| 1169 | This workaround for all both errata involves setting bit[12] of the |
| 1170 | Feature Register. This bit disables an optimisation applied to a |
| 1171 | sequence of 2 instructions that use opposing condition codes. |
| 1172 | |
Doug Anderson | 416bcf2 | 2016-04-07 00:26:05 +0100 | [diff] [blame] | 1173 | config ARM_ERRATA_821420 |
| 1174 | bool "ARM errata: A12: sequence of VMOV to core registers might lead to a dead lock" |
| 1175 | depends on CPU_V7 |
| 1176 | help |
| 1177 | This option enables the workaround for the 821420 Cortex-A12 |
| 1178 | (all revs) erratum. In very rare timing conditions, a sequence |
| 1179 | of VMOV to Core registers instructions, for which the second |
| 1180 | one is in the shadow of a branch or abort, can lead to a |
| 1181 | deadlock when the VMOV instructions are issued out-of-order. |
| 1182 | |
Doug Anderson | 9f6f935 | 2016-04-07 00:27:26 +0100 | [diff] [blame] | 1183 | config ARM_ERRATA_825619 |
| 1184 | bool "ARM errata: A12: DMB NSHST/ISHST mixed ... might cause deadlock" |
| 1185 | depends on CPU_V7 |
| 1186 | help |
| 1187 | This option enables the workaround for the 825619 Cortex-A12 |
| 1188 | (all revs) erratum. Within rare timing constraints, executing a |
| 1189 | DMB NSHST or DMB ISHST instruction followed by a mix of Cacheable |
| 1190 | and Device/Strongly-Ordered loads and stores might cause deadlock |
| 1191 | |
| 1192 | config ARM_ERRATA_852421 |
| 1193 | bool "ARM errata: A17: DMB ST might fail to create order between stores" |
| 1194 | depends on CPU_V7 |
| 1195 | help |
| 1196 | This option enables the workaround for the 852421 Cortex-A17 |
| 1197 | (r1p0, r1p1, r1p2) erratum. Under very rare timing conditions, |
| 1198 | execution of a DMB ST instruction might fail to properly order |
| 1199 | stores from GroupA and stores from GroupB. |
| 1200 | |
Doug Anderson | 62c0f4a | 2016-04-07 00:25:00 +0100 | [diff] [blame] | 1201 | config ARM_ERRATA_852423 |
| 1202 | bool "ARM errata: A17: some seqs of opposed cond code instrs => deadlock or corruption" |
| 1203 | depends on CPU_V7 |
| 1204 | help |
| 1205 | This option enables the workaround for: |
| 1206 | - Cortex-A17 852423: Execution of a sequence of instructions might |
| 1207 | lead to either a data corruption or a CPU deadlock. Not fixed in |
| 1208 | any Cortex-A17 cores yet. |
| 1209 | This is identical to Cortex-A12 erratum 852422. It is a separate |
| 1210 | config option from the A12 erratum due to the way errata are checked |
| 1211 | for and handled. |
| 1212 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1213 | endmenu |
| 1214 | |
| 1215 | source "arch/arm/common/Kconfig" |
| 1216 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1217 | menu "Bus support" |
| 1218 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1219 | config ISA |
| 1220 | bool |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1221 | help |
| 1222 | Find out whether you have ISA slots on your motherboard. ISA is the |
| 1223 | name of a bus system, i.e. the way the CPU talks to the other stuff |
| 1224 | inside your box. Other bus systems are PCI, EISA, MicroChannel |
| 1225 | (MCA) or VESA. ISA is an older system, now being displaced by PCI; |
| 1226 | newer boards don't support it. If you have ISA, say Y, otherwise N. |
| 1227 | |
Russell King | 065909b | 2006-01-04 15:44:16 +0000 | [diff] [blame] | 1228 | # Select ISA DMA controller support |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1229 | config ISA_DMA |
| 1230 | bool |
Russell King | 065909b | 2006-01-04 15:44:16 +0000 | [diff] [blame] | 1231 | select ISA_DMA_API |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1232 | |
Russell King | 065909b | 2006-01-04 15:44:16 +0000 | [diff] [blame] | 1233 | # Select ISA DMA interface |
Al Viro | 5cae841 | 2005-05-04 05:39:22 +0100 | [diff] [blame] | 1234 | config ISA_DMA_API |
| 1235 | bool |
Al Viro | 5cae841 | 2005-05-04 05:39:22 +0100 | [diff] [blame] | 1236 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1237 | config PCI |
Hans Ulli Kroll | 0b05da7 | 2010-12-02 12:32:15 +0100 | [diff] [blame] | 1238 | bool "PCI support" if MIGHT_HAVE_PCI |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1239 | help |
| 1240 | Find out whether you have a PCI motherboard. PCI is the name of a |
| 1241 | bus system, i.e. the way the CPU talks to the other stuff inside |
| 1242 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or |
| 1243 | VESA. If you have PCI, say Y, otherwise N. |
| 1244 | |
Anton Vorontsov | 5288217 | 2010-04-19 13:20:49 +0100 | [diff] [blame] | 1245 | config PCI_DOMAINS |
| 1246 | bool |
| 1247 | depends on PCI |
| 1248 | |
Lorenzo Pieralisi | 8c7d1474 | 2014-11-21 11:29:26 +0000 | [diff] [blame] | 1249 | config PCI_DOMAINS_GENERIC |
| 1250 | def_bool PCI_DOMAINS |
| 1251 | |
Marcelo Roberto Jimenez | b080ac8 | 2010-12-16 21:34:51 +0100 | [diff] [blame] | 1252 | config PCI_NANOENGINE |
| 1253 | bool "BSE nanoEngine PCI support" |
| 1254 | depends on SA1100_NANOENGINE |
| 1255 | help |
| 1256 | Enable PCI on the BSE nanoEngine board. |
| 1257 | |
Matthew Wilcox | 36e2359 | 2007-07-10 10:54:40 -0600 | [diff] [blame] | 1258 | config PCI_SYSCALL |
| 1259 | def_bool PCI |
| 1260 | |
Mike Rapoport | a0113a9 | 2007-11-25 08:55:34 +0100 | [diff] [blame] | 1261 | config PCI_HOST_ITE8152 |
| 1262 | bool |
| 1263 | depends on PCI && MACH_ARMCORE |
| 1264 | default y |
| 1265 | select DMABOUNCE |
| 1266 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1267 | source "drivers/pci/Kconfig" |
| 1268 | |
| 1269 | source "drivers/pcmcia/Kconfig" |
| 1270 | |
| 1271 | endmenu |
| 1272 | |
| 1273 | menu "Kernel Features" |
| 1274 | |
Dave Martin | 3b55658 | 2011-12-07 15:38:04 +0000 | [diff] [blame] | 1275 | config HAVE_SMP |
| 1276 | bool |
| 1277 | help |
| 1278 | This option should be selected by machines which have an SMP- |
| 1279 | capable CPU. |
| 1280 | |
| 1281 | The only effect of this option is to make the SMP-related |
| 1282 | options available to the user for configuration. |
| 1283 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1284 | config SMP |
Russell King | bb2d813 | 2011-05-12 09:52:02 +0100 | [diff] [blame] | 1285 | bool "Symmetric Multi-Processing" |
Russell King | fbb4dda | 2011-01-17 18:01:58 +0000 | [diff] [blame] | 1286 | depends on CPU_V6K || CPU_V7 |
Russell King | bc28248 | 2009-05-17 18:58:34 +0100 | [diff] [blame] | 1287 | depends on GENERIC_CLOCKEVENTS |
Dave Martin | 3b55658 | 2011-12-07 15:38:04 +0000 | [diff] [blame] | 1288 | depends on HAVE_SMP |
Jonathan Austin | 801bb21 | 2013-02-22 18:56:04 +0000 | [diff] [blame] | 1289 | depends on MMU || ARM_MPU |
Arnd Bergmann | 0361748 | 2015-05-26 15:36:58 +0100 | [diff] [blame] | 1290 | select IRQ_WORK |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1291 | help |
| 1292 | This enables support for systems with more than one CPU. If you have |
Robert Graffham | 4a47415 | 2014-01-23 15:55:29 -0800 | [diff] [blame] | 1293 | a system with only one CPU, say N. If you have a system with more |
| 1294 | than one CPU, say Y. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1295 | |
Robert Graffham | 4a47415 | 2014-01-23 15:55:29 -0800 | [diff] [blame] | 1296 | If you say N here, the kernel will run on uni- and multiprocessor |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1297 | machines, but will use only one CPU of a multiprocessor machine. If |
Robert Graffham | 4a47415 | 2014-01-23 15:55:29 -0800 | [diff] [blame] | 1298 | you say Y here, the kernel will run on many, but not all, |
| 1299 | uniprocessor machines. On a uniprocessor machine, the kernel |
| 1300 | will run faster if you say N here. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1301 | |
Paul Bolle | 395cf96 | 2011-08-15 02:02:26 +0200 | [diff] [blame] | 1302 | See also <file:Documentation/x86/i386/IO-APIC.txt>, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1303 | <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at |
Justin P. Mattock | 50a23e6 | 2010-10-16 10:36:23 -0700 | [diff] [blame] | 1304 | <http://tldp.org/HOWTO/SMP-HOWTO.html>. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1305 | |
| 1306 | If you don't know what to do here, say N. |
| 1307 | |
Russell King | f00ec48 | 2010-09-04 10:47:48 +0100 | [diff] [blame] | 1308 | config SMP_ON_UP |
Russell King | 5744ff4 | 2015-02-13 11:04:21 +0000 | [diff] [blame] | 1309 | bool "Allow booting SMP kernel on uniprocessor systems" |
Jonathan Austin | 801bb21 | 2013-02-22 18:56:04 +0000 | [diff] [blame] | 1310 | depends on SMP && !XIP_KERNEL && MMU |
Russell King | f00ec48 | 2010-09-04 10:47:48 +0100 | [diff] [blame] | 1311 | default y |
| 1312 | help |
| 1313 | SMP kernels contain instructions which fail on non-SMP processors. |
| 1314 | Enabling this option allows the kernel to modify itself to make |
| 1315 | these instructions safe. Disabling it allows about 1K of space |
| 1316 | savings. |
| 1317 | |
| 1318 | If you don't know what to do here, say Y. |
| 1319 | |
Vincent Guittot | c9018aa | 2011-08-08 13:21:59 +0100 | [diff] [blame] | 1320 | config ARM_CPU_TOPOLOGY |
| 1321 | bool "Support cpu topology definition" |
| 1322 | depends on SMP && CPU_V7 |
| 1323 | default y |
| 1324 | help |
| 1325 | Support ARM cpu topology definition. The MPIDR register defines |
| 1326 | affinity between processors which is then used to describe the cpu |
| 1327 | topology of an ARM System. |
| 1328 | |
| 1329 | config SCHED_MC |
| 1330 | bool "Multi-core scheduler support" |
| 1331 | depends on ARM_CPU_TOPOLOGY |
| 1332 | help |
| 1333 | Multi-core scheduler support improves the CPU scheduler's decision |
| 1334 | making when dealing with multi-core CPU chips at a cost of slightly |
| 1335 | increased overhead in some places. If unsure say N here. |
| 1336 | |
| 1337 | config SCHED_SMT |
| 1338 | bool "SMT scheduler support" |
| 1339 | depends on ARM_CPU_TOPOLOGY |
| 1340 | help |
| 1341 | Improves the CPU scheduler's decision making when dealing with |
| 1342 | MultiThreading at a cost of slightly increased overhead in some |
| 1343 | places. If unsure say N here. |
| 1344 | |
Russell King | a8cbcd9 | 2009-05-16 11:51:14 +0100 | [diff] [blame] | 1345 | config HAVE_ARM_SCU |
| 1346 | bool |
Russell King | a8cbcd9 | 2009-05-16 11:51:14 +0100 | [diff] [blame] | 1347 | help |
| 1348 | This option enables support for the ARM system coherency unit |
| 1349 | |
Mark Rutland | 8a4da6e | 2012-11-12 14:33:44 +0000 | [diff] [blame] | 1350 | config HAVE_ARM_ARCH_TIMER |
Marc Zyngier | 022c03a | 2012-01-11 17:25:17 +0000 | [diff] [blame] | 1351 | bool "Architected timer support" |
| 1352 | depends on CPU_V7 |
Mark Rutland | 8a4da6e | 2012-11-12 14:33:44 +0000 | [diff] [blame] | 1353 | select ARM_ARCH_TIMER |
Will Deacon | 0c403462 | 2013-11-19 15:46:17 +0100 | [diff] [blame] | 1354 | select GENERIC_CLOCKEVENTS |
Marc Zyngier | 022c03a | 2012-01-11 17:25:17 +0000 | [diff] [blame] | 1355 | help |
| 1356 | This option enables support for the ARM architected timer |
| 1357 | |
Russell King | f32f4ce | 2009-05-16 12:14:21 +0100 | [diff] [blame] | 1358 | config HAVE_ARM_TWD |
| 1359 | bool |
Rob Herring | da4a686 | 2013-02-06 21:17:47 -0600 | [diff] [blame] | 1360 | select CLKSRC_OF if OF |
Russell King | f32f4ce | 2009-05-16 12:14:21 +0100 | [diff] [blame] | 1361 | help |
| 1362 | This options enables support for the ARM timer and watchdog unit |
| 1363 | |
Nicolas Pitre | e8db288 | 2012-04-12 02:45:22 -0400 | [diff] [blame] | 1364 | config MCPM |
| 1365 | bool "Multi-Cluster Power Management" |
| 1366 | depends on CPU_V7 && SMP |
| 1367 | help |
| 1368 | This option provides the common power management infrastructure |
| 1369 | for (multi-)cluster based systems, such as big.LITTLE based |
| 1370 | systems. |
| 1371 | |
Haojian Zhuang | ebf4a5c | 2014-04-15 14:52:00 +0800 | [diff] [blame] | 1372 | config MCPM_QUAD_CLUSTER |
| 1373 | bool |
| 1374 | depends on MCPM |
| 1375 | help |
| 1376 | To avoid wasting resources unnecessarily, MCPM only supports up |
| 1377 | to 2 clusters by default. |
| 1378 | Platforms with 3 or 4 clusters that use MCPM must select this |
| 1379 | option to allow the additional clusters to be managed. |
| 1380 | |
Nicolas Pitre | 1c33be5 | 2012-04-12 02:56:10 -0400 | [diff] [blame] | 1381 | config BIG_LITTLE |
| 1382 | bool "big.LITTLE support (Experimental)" |
| 1383 | depends on CPU_V7 && SMP |
| 1384 | select MCPM |
| 1385 | help |
| 1386 | This option enables support selections for the big.LITTLE |
| 1387 | system architecture. |
| 1388 | |
| 1389 | config BL_SWITCHER |
| 1390 | bool "big.LITTLE switcher support" |
Arnd Bergmann | 6c044fe | 2015-11-19 15:49:23 +0100 | [diff] [blame] | 1391 | depends on BIG_LITTLE && MCPM && HOTPLUG_CPU && ARM_GIC |
Russell King | 51aaf81 | 2014-04-22 22:26:27 +0100 | [diff] [blame] | 1392 | select CPU_PM |
Nicolas Pitre | 1c33be5 | 2012-04-12 02:56:10 -0400 | [diff] [blame] | 1393 | help |
| 1394 | The big.LITTLE "switcher" provides the core functionality to |
| 1395 | transparently handle transition between a cluster of A15's |
| 1396 | and a cluster of A7's in a big.LITTLE system. |
| 1397 | |
Nicolas Pitre | b22537c | 2012-04-12 03:04:28 -0400 | [diff] [blame] | 1398 | config BL_SWITCHER_DUMMY_IF |
| 1399 | tristate "Simple big.LITTLE switcher user interface" |
| 1400 | depends on BL_SWITCHER && DEBUG_KERNEL |
| 1401 | help |
| 1402 | This is a simple and dummy char dev interface to control |
| 1403 | the big.LITTLE switcher core code. It is meant for |
| 1404 | debugging purposes only. |
| 1405 | |
Lennert Buytenhek | 8d5796d | 2008-08-25 21:03:32 +0100 | [diff] [blame] | 1406 | choice |
| 1407 | prompt "Memory split" |
Russell King | 006fa25 | 2014-02-26 19:40:46 +0000 | [diff] [blame] | 1408 | depends on MMU |
Lennert Buytenhek | 8d5796d | 2008-08-25 21:03:32 +0100 | [diff] [blame] | 1409 | default VMSPLIT_3G |
| 1410 | help |
| 1411 | Select the desired split between kernel and user memory. |
| 1412 | |
| 1413 | If you are not absolutely sure what you are doing, leave this |
| 1414 | option alone! |
| 1415 | |
| 1416 | config VMSPLIT_3G |
| 1417 | bool "3G/1G user/kernel split" |
Nicolas Pitre | 63ce446 | 2015-09-13 03:30:11 +0100 | [diff] [blame] | 1418 | config VMSPLIT_3G_OPT |
| 1419 | bool "3G/1G user/kernel split (for full 1G low memory)" |
Lennert Buytenhek | 8d5796d | 2008-08-25 21:03:32 +0100 | [diff] [blame] | 1420 | config VMSPLIT_2G |
| 1421 | bool "2G/2G user/kernel split" |
| 1422 | config VMSPLIT_1G |
| 1423 | bool "1G/3G user/kernel split" |
| 1424 | endchoice |
| 1425 | |
| 1426 | config PAGE_OFFSET |
| 1427 | hex |
Russell King | 006fa25 | 2014-02-26 19:40:46 +0000 | [diff] [blame] | 1428 | default PHYS_OFFSET if !MMU |
Lennert Buytenhek | 8d5796d | 2008-08-25 21:03:32 +0100 | [diff] [blame] | 1429 | default 0x40000000 if VMSPLIT_1G |
| 1430 | default 0x80000000 if VMSPLIT_2G |
Nicolas Pitre | 63ce446 | 2015-09-13 03:30:11 +0100 | [diff] [blame] | 1431 | default 0xB0000000 if VMSPLIT_3G_OPT |
Lennert Buytenhek | 8d5796d | 2008-08-25 21:03:32 +0100 | [diff] [blame] | 1432 | default 0xC0000000 |
| 1433 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1434 | config NR_CPUS |
| 1435 | int "Maximum number of CPUs (2-32)" |
| 1436 | range 2 32 |
| 1437 | depends on SMP |
| 1438 | default "4" |
| 1439 | |
Russell King | a054a81 | 2005-11-02 22:24:33 +0000 | [diff] [blame] | 1440 | config HOTPLUG_CPU |
Russell King | 00b7ded | 2012-10-22 22:54:30 +0100 | [diff] [blame] | 1441 | bool "Support for hot-pluggable CPUs" |
Stephen Rothwell | 40b3136 | 2013-05-21 13:49:35 +1000 | [diff] [blame] | 1442 | depends on SMP |
Russell King | a054a81 | 2005-11-02 22:24:33 +0000 | [diff] [blame] | 1443 | help |
| 1444 | Say Y here to experiment with turning CPUs off and on. CPUs |
| 1445 | can be controlled through /sys/devices/system/cpu. |
| 1446 | |
Will Deacon | 2bdd424 | 2012-12-12 19:20:52 +0000 | [diff] [blame] | 1447 | config ARM_PSCI |
| 1448 | bool "Support for the ARM Power State Coordination Interface (PSCI)" |
Jens Wiklander | e679660 | 2016-01-04 15:46:47 +0100 | [diff] [blame] | 1449 | depends on HAVE_ARM_SMCCC |
Mark Rutland | be12039 | 2015-07-31 15:46:19 +0100 | [diff] [blame] | 1450 | select ARM_PSCI_FW |
Will Deacon | 2bdd424 | 2012-12-12 19:20:52 +0000 | [diff] [blame] | 1451 | help |
| 1452 | Say Y here if you want Linux to communicate with system firmware |
| 1453 | implementing the PSCI specification for CPU-centric power |
| 1454 | management operations described in ARM document number ARM DEN |
| 1455 | 0022A ("Power State Coordination Interface System Software on |
| 1456 | ARM processors"). |
| 1457 | |
Maxime Ripard | 2a6ad87 | 2013-02-03 12:24:48 +0100 | [diff] [blame] | 1458 | # The GPIO number here must be sorted by descending number. In case of |
| 1459 | # a multiplatform kernel, we just want the highest value required by the |
| 1460 | # selected platforms. |
Peter De Schrijver (NVIDIA) | 44986ab | 2011-12-21 10:48:45 +0100 | [diff] [blame] | 1461 | config ARCH_NR_GPIO |
| 1462 | int |
Gregory Fong | b35d2e5 | 2015-05-28 19:14:10 -0700 | [diff] [blame] | 1463 | default 1024 if ARCH_BRCMSTB || ARCH_SHMOBILE || ARCH_TEGRA || \ |
| 1464 | ARCH_ZYNQ |
Tomasz Figa | aa42587 | 2014-07-03 13:17:12 +0200 | [diff] [blame] | 1465 | default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 || \ |
| 1466 | SOC_DRA7XX || ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 |
Boris BREZILLON | eb171a9 | 2014-04-10 15:52:46 +0200 | [diff] [blame] | 1467 | default 416 if ARCH_SUNXI |
Olof Johansson | 06b851e | 2013-04-02 18:33:58 -0700 | [diff] [blame] | 1468 | default 392 if ARCH_U8500 |
Tony Prisk | 01bb914 | 2013-03-09 18:22:30 +1300 | [diff] [blame] | 1469 | default 352 if ARCH_VT8500 |
Heiko Stuebner | 7b5da4c | 2014-05-26 00:13:51 +0200 | [diff] [blame] | 1470 | default 288 if ARCH_ROCKCHIP |
Maxime Ripard | 2a6ad87 | 2013-02-03 12:24:48 +0100 | [diff] [blame] | 1471 | default 264 if MACH_H4700 |
Peter De Schrijver (NVIDIA) | 44986ab | 2011-12-21 10:48:45 +0100 | [diff] [blame] | 1472 | default 0 |
| 1473 | help |
| 1474 | Maximum number of GPIOs in the system. |
| 1475 | |
| 1476 | If unsure, leave the default value. |
| 1477 | |
Uwe Kleine-König | d45a398 | 2009-08-13 20:38:17 +0200 | [diff] [blame] | 1478 | source kernel/Kconfig.preempt |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1479 | |
Russell King | c9218b1 | 2013-04-27 23:31:10 +0100 | [diff] [blame] | 1480 | config HZ_FIXED |
Russell King | f806581 | 2006-03-02 22:41:59 +0000 | [diff] [blame] | 1481 | int |
Krzysztof Kozlowski | da6b21e | 2016-11-18 13:15:12 +0200 | [diff] [blame] | 1482 | default 200 if ARCH_EBSA110 |
Alexandre Belloni | 1164f67 | 2015-03-13 22:57:24 +0100 | [diff] [blame] | 1483 | default 128 if SOC_AT91RM9200 |
Russell King | 47d8468 | 2013-09-10 23:47:55 +0100 | [diff] [blame] | 1484 | default 0 |
Russell King | c9218b1 | 2013-04-27 23:31:10 +0100 | [diff] [blame] | 1485 | |
| 1486 | choice |
Russell King | 47d8468 | 2013-09-10 23:47:55 +0100 | [diff] [blame] | 1487 | depends on HZ_FIXED = 0 |
Russell King | c9218b1 | 2013-04-27 23:31:10 +0100 | [diff] [blame] | 1488 | prompt "Timer frequency" |
| 1489 | |
| 1490 | config HZ_100 |
| 1491 | bool "100 Hz" |
| 1492 | |
| 1493 | config HZ_200 |
| 1494 | bool "200 Hz" |
| 1495 | |
| 1496 | config HZ_250 |
| 1497 | bool "250 Hz" |
| 1498 | |
| 1499 | config HZ_300 |
| 1500 | bool "300 Hz" |
| 1501 | |
| 1502 | config HZ_500 |
| 1503 | bool "500 Hz" |
| 1504 | |
| 1505 | config HZ_1000 |
| 1506 | bool "1000 Hz" |
| 1507 | |
| 1508 | endchoice |
| 1509 | |
| 1510 | config HZ |
| 1511 | int |
Russell King | 47d8468 | 2013-09-10 23:47:55 +0100 | [diff] [blame] | 1512 | default HZ_FIXED if HZ_FIXED != 0 |
Russell King | c9218b1 | 2013-04-27 23:31:10 +0100 | [diff] [blame] | 1513 | default 100 if HZ_100 |
| 1514 | default 200 if HZ_200 |
| 1515 | default 250 if HZ_250 |
| 1516 | default 300 if HZ_300 |
| 1517 | default 500 if HZ_500 |
| 1518 | default 1000 |
| 1519 | |
| 1520 | config SCHED_HRTICK |
| 1521 | def_bool HIGH_RES_TIMERS |
Russell King | f806581 | 2006-03-02 22:41:59 +0000 | [diff] [blame] | 1522 | |
Catalin Marinas | 16c7965 | 2009-07-24 12:33:02 +0100 | [diff] [blame] | 1523 | config THUMB2_KERNEL |
Uwe Kleine-König | bc7dea0 | 2011-12-09 20:52:10 +0100 | [diff] [blame] | 1524 | bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY |
Uwe Kleine-König | 4477ca4 | 2013-03-21 21:02:37 +0100 | [diff] [blame] | 1525 | depends on (CPU_V7 || CPU_V7M) && !CPU_V6 && !CPU_V6K |
Uwe Kleine-König | bc7dea0 | 2011-12-09 20:52:10 +0100 | [diff] [blame] | 1526 | default y if CPU_THUMBONLY |
Catalin Marinas | 16c7965 | 2009-07-24 12:33:02 +0100 | [diff] [blame] | 1527 | select AEABI |
| 1528 | select ARM_ASM_UNIFIED |
Arnd Bergmann | 89bace6 | 2011-06-10 14:12:21 +0000 | [diff] [blame] | 1529 | select ARM_UNWIND |
Catalin Marinas | 16c7965 | 2009-07-24 12:33:02 +0100 | [diff] [blame] | 1530 | help |
| 1531 | By enabling this option, the kernel will be compiled in |
| 1532 | Thumb-2 mode. A compiler/assembler that understand the unified |
| 1533 | ARM-Thumb syntax is needed. |
| 1534 | |
| 1535 | If unsure, say N. |
| 1536 | |
Dave Martin | 6f685c5 | 2011-03-03 11:41:12 +0100 | [diff] [blame] | 1537 | config THUMB2_AVOID_R_ARM_THM_JUMP11 |
| 1538 | bool "Work around buggy Thumb-2 short branch relocations in gas" |
| 1539 | depends on THUMB2_KERNEL && MODULES |
| 1540 | default y |
| 1541 | help |
| 1542 | Various binutils versions can resolve Thumb-2 branches to |
| 1543 | locally-defined, preemptible global symbols as short-range "b.n" |
| 1544 | branch instructions. |
| 1545 | |
| 1546 | This is a problem, because there's no guarantee the final |
| 1547 | destination of the symbol, or any candidate locations for a |
| 1548 | trampoline, are within range of the branch. For this reason, the |
| 1549 | kernel does not support fixing up the R_ARM_THM_JUMP11 (102) |
| 1550 | relocation in modules at all, and it makes little sense to add |
| 1551 | support. |
| 1552 | |
| 1553 | The symptom is that the kernel fails with an "unsupported |
| 1554 | relocation" error when loading some modules. |
| 1555 | |
| 1556 | Until fixed tools are available, passing |
| 1557 | -fno-optimize-sibling-calls to gcc should prevent gcc generating |
| 1558 | code which hits this problem, at the cost of a bit of extra runtime |
| 1559 | stack usage in some cases. |
| 1560 | |
| 1561 | The problem is described in more detail at: |
| 1562 | https://bugs.launchpad.net/binutils-linaro/+bug/725126 |
| 1563 | |
| 1564 | Only Thumb-2 kernels are affected. |
| 1565 | |
| 1566 | Unless you are sure your tools don't have this problem, say Y. |
| 1567 | |
Catalin Marinas | 0becb08 | 2009-07-24 12:32:53 +0100 | [diff] [blame] | 1568 | config ARM_ASM_UNIFIED |
| 1569 | bool |
| 1570 | |
Nicolas Pitre | 42f25bd | 2015-12-12 02:49:21 +0100 | [diff] [blame] | 1571 | config ARM_PATCH_IDIV |
| 1572 | bool "Runtime patch udiv/sdiv instructions into __aeabi_{u}idiv()" |
| 1573 | depends on CPU_32v7 && !XIP_KERNEL |
| 1574 | default y |
| 1575 | help |
| 1576 | The ARM compiler inserts calls to __aeabi_idiv() and |
| 1577 | __aeabi_uidiv() when it needs to perform division on signed |
| 1578 | and unsigned integers. Some v7 CPUs have support for the sdiv |
| 1579 | and udiv instructions that can be used to implement those |
| 1580 | functions. |
| 1581 | |
| 1582 | Enabling this option allows the kernel to modify itself to |
| 1583 | replace the first two instructions of these library functions |
| 1584 | with the sdiv or udiv plus "bx lr" instructions when the CPU |
| 1585 | it is running on supports them. Typically this will be faster |
| 1586 | and less power intensive than running the original library |
| 1587 | code to do integer division. |
| 1588 | |
Nicolas Pitre | 704bdda | 2006-01-14 16:33:50 +0000 | [diff] [blame] | 1589 | config AEABI |
| 1590 | bool "Use the ARM EABI to compile the kernel" |
| 1591 | help |
| 1592 | This option allows for the kernel to be compiled using the latest |
| 1593 | ARM ABI (aka EABI). This is only useful if you are using a user |
| 1594 | space environment that is also compiled with EABI. |
| 1595 | |
| 1596 | Since there are major incompatibilities between the legacy ABI and |
| 1597 | EABI, especially with regard to structure member alignment, this |
| 1598 | option also changes the kernel syscall calling convention to |
| 1599 | disambiguate both ABIs and allow for backward compatibility support |
| 1600 | (selected with CONFIG_OABI_COMPAT). |
| 1601 | |
| 1602 | To use this you need GCC version 4.0.0 or later. |
| 1603 | |
Nicolas Pitre | 6c90c87 | 2006-01-14 16:37:15 +0000 | [diff] [blame] | 1604 | config OABI_COMPAT |
Russell King | a73a3ff | 2006-02-08 21:09:55 +0000 | [diff] [blame] | 1605 | bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)" |
Kees Cook | d6f94fa | 2013-01-16 18:53:14 -0800 | [diff] [blame] | 1606 | depends on AEABI && !THUMB2_KERNEL |
Nicolas Pitre | 6c90c87 | 2006-01-14 16:37:15 +0000 | [diff] [blame] | 1607 | help |
| 1608 | This option preserves the old syscall interface along with the |
| 1609 | new (ARM EABI) one. It also provides a compatibility layer to |
| 1610 | intercept syscalls that have structure arguments which layout |
| 1611 | in memory differs between the legacy ABI and the new ARM EABI |
| 1612 | (only for non "thumb" binaries). This option adds a tiny |
| 1613 | overhead to all syscalls and produces a slightly larger kernel. |
Kees Cook | 9170217 | 2013-11-09 00:51:56 +0100 | [diff] [blame] | 1614 | |
| 1615 | The seccomp filter system will not be available when this is |
| 1616 | selected, since there is no way yet to sensibly distinguish |
| 1617 | between calling conventions during filtering. |
| 1618 | |
Nicolas Pitre | 6c90c87 | 2006-01-14 16:37:15 +0000 | [diff] [blame] | 1619 | If you know you'll be using only pure EABI user space then you |
| 1620 | can say N here. If this option is not selected and you attempt |
| 1621 | to execute a legacy ABI binary then the result will be |
| 1622 | UNPREDICTABLE (in fact it can be predicted that it won't work |
Kees Cook | b02f846 | 2013-11-09 00:31:11 +0100 | [diff] [blame] | 1623 | at all). If in doubt say N. |
Nicolas Pitre | 6c90c87 | 2006-01-14 16:37:15 +0000 | [diff] [blame] | 1624 | |
Mel Gorman | eb33575 | 2009-05-13 17:34:48 +0100 | [diff] [blame] | 1625 | config ARCH_HAS_HOLES_MEMORYMODEL |
Mel Gorman | e80d6a2 | 2008-08-14 11:10:14 +0100 | [diff] [blame] | 1626 | bool |
Mel Gorman | e80d6a2 | 2008-08-14 11:10:14 +0100 | [diff] [blame] | 1627 | |
Russell King | 05944d7 | 2006-11-30 20:43:51 +0000 | [diff] [blame] | 1628 | config ARCH_SPARSEMEM_ENABLE |
| 1629 | bool |
| 1630 | |
Russell King | 07a2f73 | 2008-10-01 21:39:58 +0100 | [diff] [blame] | 1631 | config ARCH_SPARSEMEM_DEFAULT |
| 1632 | def_bool ARCH_SPARSEMEM_ENABLE |
| 1633 | |
Russell King | 05944d7 | 2006-11-30 20:43:51 +0000 | [diff] [blame] | 1634 | config ARCH_SELECT_MEMORY_MODEL |
Russell King | be37030 | 2010-05-07 17:40:33 +0100 | [diff] [blame] | 1635 | def_bool ARCH_SPARSEMEM_ENABLE |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 1636 | |
Will Deacon | 7b7bf49 | 2011-05-19 13:21:14 +0100 | [diff] [blame] | 1637 | config HAVE_ARCH_PFN_VALID |
| 1638 | def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM |
| 1639 | |
Steve Capper | b8cd51a | 2014-10-09 15:29:20 -0700 | [diff] [blame] | 1640 | config HAVE_GENERIC_RCU_GUP |
| 1641 | def_bool y |
| 1642 | depends on ARM_LPAE |
| 1643 | |
Nicolas Pitre | 053a96c | 2008-09-19 00:36:12 -0400 | [diff] [blame] | 1644 | config HIGHMEM |
Russell King | e8db89a | 2011-05-12 09:53:05 +0100 | [diff] [blame] | 1645 | bool "High Memory Support" |
| 1646 | depends on MMU |
Nicolas Pitre | 053a96c | 2008-09-19 00:36:12 -0400 | [diff] [blame] | 1647 | help |
| 1648 | The address space of ARM processors is only 4 Gigabytes large |
| 1649 | and it has to accommodate user address space, kernel address |
| 1650 | space as well as some memory mapped IO. That means that, if you |
| 1651 | have a large amount of physical memory and/or IO, not all of the |
| 1652 | memory can be "permanently mapped" by the kernel. The physical |
| 1653 | memory that is not permanently mapped is called "high memory". |
| 1654 | |
| 1655 | Depending on the selected kernel/user memory split, minimum |
| 1656 | vmalloc space and actual amount of RAM, you may not need this |
| 1657 | option which should result in a slightly faster kernel. |
| 1658 | |
| 1659 | If unsure, say n. |
| 1660 | |
Russell King | 65cec8e | 2009-08-17 20:02:06 +0100 | [diff] [blame] | 1661 | config HIGHPTE |
Russell King | 9a431bd | 2015-06-25 10:44:08 +0100 | [diff] [blame] | 1662 | bool "Allocate 2nd-level pagetables from highmem" if EXPERT |
Russell King | 65cec8e | 2009-08-17 20:02:06 +0100 | [diff] [blame] | 1663 | depends on HIGHMEM |
Russell King | 9a431bd | 2015-06-25 10:44:08 +0100 | [diff] [blame] | 1664 | default y |
Russell King | b4d103d | 2015-06-25 10:49:45 +0100 | [diff] [blame] | 1665 | help |
| 1666 | The VM uses one page of physical memory for each page table. |
| 1667 | For systems with a lot of processes, this can use a lot of |
| 1668 | precious low memory, eventually leading to low memory being |
| 1669 | consumed by page tables. Setting this option will allow |
| 1670 | user-space 2nd level page tables to reside in high memory. |
Russell King | 65cec8e | 2009-08-17 20:02:06 +0100 | [diff] [blame] | 1671 | |
Russell King | a5e090a | 2015-08-19 20:40:41 +0100 | [diff] [blame] | 1672 | config CPU_SW_DOMAIN_PAN |
| 1673 | bool "Enable use of CPU domains to implement privileged no-access" |
| 1674 | depends on MMU && !ARM_LPAE |
Jamie Iles | 1b8873a | 2010-02-02 20:25:44 +0100 | [diff] [blame] | 1675 | default y |
| 1676 | help |
Russell King | a5e090a | 2015-08-19 20:40:41 +0100 | [diff] [blame] | 1677 | Increase kernel security by ensuring that normal kernel accesses |
| 1678 | are unable to access userspace addresses. This can help prevent |
| 1679 | use-after-free bugs becoming an exploitable privilege escalation |
| 1680 | by ensuring that magic values (such as LIST_POISON) will always |
| 1681 | fault when dereferenced. |
| 1682 | |
| 1683 | CPUs with low-vector mappings use a best-efforts implementation. |
| 1684 | Their lower 1MB needs to remain accessible for the vectors, but |
| 1685 | the remainder of userspace will become appropriately inaccessible. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1686 | |
| 1687 | config HW_PERF_EVENTS |
Mark Rutland | fa8ad78 | 2015-07-06 12:23:53 +0100 | [diff] [blame] | 1688 | def_bool y |
| 1689 | depends on ARM_PMU |
Jamie Iles | 1b8873a | 2010-02-02 20:25:44 +0100 | [diff] [blame] | 1690 | |
Catalin Marinas | 1355e2a | 2012-07-25 14:32:38 +0100 | [diff] [blame] | 1691 | config SYS_SUPPORTS_HUGETLBFS |
| 1692 | def_bool y |
| 1693 | depends on ARM_LPAE |
| 1694 | |
Catalin Marinas | 8d96250 | 2012-07-25 14:39:26 +0100 | [diff] [blame] | 1695 | config HAVE_ARCH_TRANSPARENT_HUGEPAGE |
| 1696 | def_bool y |
| 1697 | depends on ARM_LPAE |
| 1698 | |
Steven Capper | 4bfab20 | 2013-07-26 14:58:22 +0100 | [diff] [blame] | 1699 | config ARCH_WANT_GENERAL_HUGETLB |
| 1700 | def_bool y |
| 1701 | |
Ard Biesheuvel | 7d485f6 | 2014-11-24 16:54:35 +0100 | [diff] [blame] | 1702 | config ARM_MODULE_PLTS |
| 1703 | bool "Use PLTs to allow module memory to spill over into vmalloc area" |
| 1704 | depends on MODULES |
| 1705 | help |
| 1706 | Allocate PLTs when loading modules so that jumps and calls whose |
| 1707 | targets are too far away for their relative offsets to be encoded |
| 1708 | in the instructions themselves can be bounced via veneers in the |
| 1709 | module's PLT. This allows modules to be allocated in the generic |
| 1710 | vmalloc area after the dedicated module memory area has been |
| 1711 | exhausted. The modules will use slightly more memory, but after |
| 1712 | rounding up to page size, the actual memory footprint is usually |
| 1713 | the same. |
| 1714 | |
| 1715 | Say y if you are getting out of memory errors while loading modules |
| 1716 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1717 | source "mm/Kconfig" |
| 1718 | |
Magnus Damm | c1b2d97 | 2010-07-05 10:00:11 +0100 | [diff] [blame] | 1719 | config FORCE_MAX_ZONEORDER |
Ulrich Hecht | 36d6c92 | 2015-08-14 15:51:06 +0200 | [diff] [blame] | 1720 | int "Maximum zone order" |
Yegor Yefremov | 898f08e | 2012-10-08 14:37:53 -0700 | [diff] [blame] | 1721 | default "12" if SOC_AM33XX |
Uwe Kleine-König | 6d85e2b | 2011-11-17 14:36:23 +0100 | [diff] [blame] | 1722 | default "9" if SA1111 || ARCH_EFM32 |
Magnus Damm | c1b2d97 | 2010-07-05 10:00:11 +0100 | [diff] [blame] | 1723 | default "11" |
| 1724 | help |
| 1725 | The kernel memory allocator divides physically contiguous memory |
| 1726 | blocks into "zones", where each zone is a power of two number of |
| 1727 | pages. This option selects the largest power of two that the kernel |
| 1728 | keeps in the memory allocator. If you need to allocate very large |
| 1729 | blocks of physically contiguous memory, then you may need to |
| 1730 | increase this value. |
| 1731 | |
| 1732 | This config option is actually maximum order plus one. For example, |
| 1733 | a value of 11 means that the largest free memory block is 2^10 pages. |
| 1734 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1735 | config ALIGNMENT_TRAP |
| 1736 | bool |
Hyok S. Choi | f12d0d7 | 2006-09-26 17:36:37 +0900 | [diff] [blame] | 1737 | depends on CPU_CP15_MMU |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1738 | default y if !ARCH_EBSA110 |
Russell King | e119bff | 2010-01-10 17:23:29 +0000 | [diff] [blame] | 1739 | select HAVE_PROC_CPU if PROC_FS |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1740 | help |
Matt LaPlante | 84eb8d0 | 2006-10-03 22:53:09 +0200 | [diff] [blame] | 1741 | ARM processors cannot fetch/store information which is not |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1742 | naturally aligned on the bus, i.e., a 4 byte fetch must start at an |
| 1743 | address divisible by 4. On 32-bit ARM processors, these non-aligned |
| 1744 | fetch/store instructions will be emulated in software if you say |
| 1745 | here, which has a severe performance impact. This is necessary for |
| 1746 | correct operation of some network protocols. With an IP-only |
| 1747 | configuration it is safe to say N, otherwise say Y. |
| 1748 | |
Lennert Buytenhek | 39ec58f | 2009-03-09 14:30:09 -0400 | [diff] [blame] | 1749 | config UACCESS_WITH_MEMCPY |
Linus Walleij | 38ef2ad | 2012-09-10 16:36:37 +0100 | [diff] [blame] | 1750 | bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user()" |
| 1751 | depends on MMU |
Lennert Buytenhek | 39ec58f | 2009-03-09 14:30:09 -0400 | [diff] [blame] | 1752 | default y if CPU_FEROCEON |
| 1753 | help |
| 1754 | Implement faster copy_to_user and clear_user methods for CPU |
| 1755 | cores where a 8-word STM instruction give significantly higher |
| 1756 | memory write throughput than a sequence of individual 32bit stores. |
| 1757 | |
| 1758 | A possible side effect is a slight increase in scheduling latency |
| 1759 | between threads sharing the same address space if they invoke |
| 1760 | such copy operations with large buffers. |
| 1761 | |
| 1762 | However, if the CPU data cache is using a write-allocate mode, |
| 1763 | this option is unlikely to provide any performance gain. |
| 1764 | |
Nicolas Pitre | 70c70d9 | 2010-08-26 15:08:35 -0700 | [diff] [blame] | 1765 | config SECCOMP |
| 1766 | bool |
| 1767 | prompt "Enable seccomp to safely compute untrusted bytecode" |
| 1768 | ---help--- |
| 1769 | This kernel feature is useful for number crunching applications |
| 1770 | that may need to compute untrusted bytecode during their |
| 1771 | execution. By using pipes or other transports made available to |
| 1772 | the process as file descriptors supporting the read/write |
| 1773 | syscalls, it's possible to isolate those applications in |
| 1774 | their own address space using seccomp. Once seccomp is |
| 1775 | enabled via prctl(PR_SET_SECCOMP), it cannot be disabled |
| 1776 | and the task is only allowed to execute a few safe syscalls |
| 1777 | defined by each seccomp mode. |
| 1778 | |
Stefano Stabellini | 06e6295 | 2013-10-15 15:47:14 +0000 | [diff] [blame] | 1779 | config SWIOTLB |
| 1780 | def_bool y |
| 1781 | |
| 1782 | config IOMMU_HELPER |
| 1783 | def_bool SWIOTLB |
| 1784 | |
Stefano Stabellini | 02c2433 | 2015-11-23 10:32:57 +0000 | [diff] [blame] | 1785 | config PARAVIRT |
| 1786 | bool "Enable paravirtualization code" |
| 1787 | help |
| 1788 | This changes the kernel so it can modify itself when it is run |
| 1789 | under a hypervisor, potentially improving performance significantly |
| 1790 | over full virtualization. |
| 1791 | |
| 1792 | config PARAVIRT_TIME_ACCOUNTING |
| 1793 | bool "Paravirtual steal time accounting" |
| 1794 | select PARAVIRT |
| 1795 | default n |
| 1796 | help |
| 1797 | Select this option to enable fine granularity task steal time |
| 1798 | accounting. Time spent executing other tasks in parallel with |
| 1799 | the current vCPU is discounted from the vCPU power. To account for |
| 1800 | that, there can be a small performance impact. |
| 1801 | |
| 1802 | If in doubt, say N here. |
| 1803 | |
Stefano Stabellini | eff8d64 | 2012-09-17 14:58:17 +0000 | [diff] [blame] | 1804 | config XEN_DOM0 |
| 1805 | def_bool y |
| 1806 | depends on XEN |
| 1807 | |
| 1808 | config XEN |
Julien Grall | c2ba1f7 | 2014-09-17 14:07:06 -0700 | [diff] [blame] | 1809 | bool "Xen guest support on ARM" |
Ian Campbell | 85323a9 | 2013-03-07 07:17:25 +0000 | [diff] [blame] | 1810 | depends on ARM && AEABI && OF |
Arnd Bergmann | f880b67 | 2012-10-09 10:33:52 +0000 | [diff] [blame] | 1811 | depends on CPU_V7 && !CPU_V6 |
Ian Campbell | 85323a9 | 2013-03-07 07:17:25 +0000 | [diff] [blame] | 1812 | depends on !GENERIC_ATOMIC64 |
Uwe Kleine-König | 7693dec | 2014-03-03 09:25:52 -0500 | [diff] [blame] | 1813 | depends on MMU |
Russell King | 51aaf81 | 2014-04-22 22:26:27 +0100 | [diff] [blame] | 1814 | select ARCH_DMA_ADDR_T_64BIT |
Stefano Stabellini | 17b7ab8 | 2013-04-24 18:47:18 +0000 | [diff] [blame] | 1815 | select ARM_PSCI |
Stefano Stabellini | 83862cc | 2013-10-10 13:40:44 +0000 | [diff] [blame] | 1816 | select SWIOTLB_XEN |
Stefano Stabellini | 02c2433 | 2015-11-23 10:32:57 +0000 | [diff] [blame] | 1817 | select PARAVIRT |
Stefano Stabellini | eff8d64 | 2012-09-17 14:58:17 +0000 | [diff] [blame] | 1818 | help |
| 1819 | Say Y if you want to run Linux in a Virtual Machine on Xen on ARM. |
| 1820 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1821 | endmenu |
| 1822 | |
| 1823 | menu "Boot options" |
| 1824 | |
Grant Likely | 9eb8f67 | 2011-04-28 14:27:20 -0600 | [diff] [blame] | 1825 | config USE_OF |
| 1826 | bool "Flattened Device Tree support" |
Russell King | b1b3f49 | 2012-10-06 17:12:25 +0100 | [diff] [blame] | 1827 | select IRQ_DOMAIN |
Grant Likely | 9eb8f67 | 2011-04-28 14:27:20 -0600 | [diff] [blame] | 1828 | select OF |
Grant Likely | 9eb8f67 | 2011-04-28 14:27:20 -0600 | [diff] [blame] | 1829 | help |
| 1830 | Include support for flattened device tree machine descriptions. |
| 1831 | |
Nicolas Pitre | bd51e2f | 2012-09-01 03:03:25 +0100 | [diff] [blame] | 1832 | config ATAGS |
| 1833 | bool "Support for the traditional ATAGS boot data passing" if USE_OF |
| 1834 | default y |
| 1835 | help |
| 1836 | This is the traditional way of passing data to the kernel at boot |
| 1837 | time. If you are solely relying on the flattened device tree (or |
| 1838 | the ARM_ATAG_DTB_COMPAT option) then you may unselect this option |
| 1839 | to remove ATAGS support from your kernel binary. If unsure, |
| 1840 | leave this to y. |
| 1841 | |
| 1842 | config DEPRECATED_PARAM_STRUCT |
| 1843 | bool "Provide old way to pass kernel parameters" |
| 1844 | depends on ATAGS |
| 1845 | help |
| 1846 | This was deprecated in 2001 and announced to live on for 5 years. |
| 1847 | Some old boot loaders still use this way. |
| 1848 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1849 | # Compressed boot loader in ROM. Yes, we really want to ask about |
| 1850 | # TEXT and BSS so we preserve their values in the config files. |
| 1851 | config ZBOOT_ROM_TEXT |
| 1852 | hex "Compressed ROM boot loader base address" |
| 1853 | default "0" |
| 1854 | help |
| 1855 | The physical address at which the ROM-able zImage is to be |
| 1856 | placed in the target. Platforms which normally make use of |
| 1857 | ROM-able zImage formats normally set this to a suitable |
| 1858 | value in their defconfig file. |
| 1859 | |
| 1860 | If ZBOOT_ROM is not enabled, this has no effect. |
| 1861 | |
| 1862 | config ZBOOT_ROM_BSS |
| 1863 | hex "Compressed ROM boot loader BSS address" |
| 1864 | default "0" |
| 1865 | help |
Dan Fandrich | f8c440b | 2006-09-20 23:28:51 +0100 | [diff] [blame] | 1866 | The base address of an area of read/write memory in the target |
| 1867 | for the ROM-able zImage which must be available while the |
| 1868 | decompressor is running. It must be large enough to hold the |
| 1869 | entire decompressed kernel plus an additional 128 KiB. |
| 1870 | Platforms which normally make use of ROM-able zImage formats |
| 1871 | normally set this to a suitable value in their defconfig file. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1872 | |
| 1873 | If ZBOOT_ROM is not enabled, this has no effect. |
| 1874 | |
| 1875 | config ZBOOT_ROM |
| 1876 | bool "Compressed boot loader in ROM/flash" |
| 1877 | depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS |
Russell King | 1096813 | 2014-01-01 11:59:44 +0000 | [diff] [blame] | 1878 | depends on !ARM_APPENDED_DTB && !XIP_KERNEL && !AUTO_ZRELADDR |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1879 | help |
| 1880 | Say Y here if you intend to execute your compressed kernel image |
| 1881 | (zImage) directly from ROM or flash. If unsure, say N. |
| 1882 | |
John Bonesio | e2a6a3a | 2011-05-27 18:45:50 -0400 | [diff] [blame] | 1883 | config ARM_APPENDED_DTB |
| 1884 | bool "Use appended device tree blob to zImage (EXPERIMENTAL)" |
Russell King | 1096813 | 2014-01-01 11:59:44 +0000 | [diff] [blame] | 1885 | depends on OF |
John Bonesio | e2a6a3a | 2011-05-27 18:45:50 -0400 | [diff] [blame] | 1886 | help |
| 1887 | With this option, the boot code will look for a device tree binary |
| 1888 | (DTB) appended to zImage |
| 1889 | (e.g. cat zImage <filename>.dtb > zImage_w_dtb). |
| 1890 | |
| 1891 | This is meant as a backward compatibility convenience for those |
| 1892 | systems with a bootloader that can't be upgraded to accommodate |
| 1893 | the documented boot protocol using a device tree. |
| 1894 | |
| 1895 | Beware that there is very little in terms of protection against |
| 1896 | this option being confused by leftover garbage in memory that might |
| 1897 | look like a DTB header after a reboot if no actual DTB is appended |
| 1898 | to zImage. Do not leave this option active in a production kernel |
| 1899 | if you don't intend to always append a DTB. Proper passing of the |
| 1900 | location into r2 of a bootloader provided DTB is always preferable |
| 1901 | to this option. |
| 1902 | |
Nicolas Pitre | b90b9a3 | 2011-09-13 22:37:07 -0400 | [diff] [blame] | 1903 | config ARM_ATAG_DTB_COMPAT |
| 1904 | bool "Supplement the appended DTB with traditional ATAG information" |
| 1905 | depends on ARM_APPENDED_DTB |
| 1906 | help |
| 1907 | Some old bootloaders can't be updated to a DTB capable one, yet |
| 1908 | they provide ATAGs with memory configuration, the ramdisk address, |
| 1909 | the kernel cmdline string, etc. Such information is dynamically |
| 1910 | provided by the bootloader and can't always be stored in a static |
| 1911 | DTB. To allow a device tree enabled kernel to be used with such |
| 1912 | bootloaders, this option allows zImage to extract the information |
| 1913 | from the ATAG list and store it at run time into the appended DTB. |
| 1914 | |
Genoud Richard | d0f34a1 | 2012-06-26 16:37:59 +0100 | [diff] [blame] | 1915 | choice |
| 1916 | prompt "Kernel command line type" if ARM_ATAG_DTB_COMPAT |
| 1917 | default ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER |
| 1918 | |
| 1919 | config ARM_ATAG_DTB_COMPAT_CMDLINE_FROM_BOOTLOADER |
| 1920 | bool "Use bootloader kernel arguments if available" |
| 1921 | help |
| 1922 | Uses the command-line options passed by the boot loader instead of |
| 1923 | the device tree bootargs property. If the boot loader doesn't provide |
| 1924 | any, the device tree bootargs property will be used. |
| 1925 | |
| 1926 | config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND |
| 1927 | bool "Extend with bootloader kernel arguments" |
| 1928 | help |
| 1929 | The command-line arguments provided by the boot loader will be |
| 1930 | appended to the the device tree bootargs property. |
| 1931 | |
| 1932 | endchoice |
| 1933 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1934 | config CMDLINE |
| 1935 | string "Default kernel command string" |
| 1936 | default "" |
| 1937 | help |
| 1938 | On some architectures (EBSA110 and CATS), there is currently no way |
| 1939 | for the boot loader to pass arguments to the kernel. For these |
| 1940 | architectures, you should supply some command-line options at build |
| 1941 | time by entering them here. As a minimum, you should specify the |
| 1942 | memory size and the root device (e.g., mem=64M root=/dev/nfs). |
| 1943 | |
Victor Boivie | 4394c12 | 2011-05-04 17:07:55 +0100 | [diff] [blame] | 1944 | choice |
| 1945 | prompt "Kernel command line type" if CMDLINE != "" |
| 1946 | default CMDLINE_FROM_BOOTLOADER |
Nicolas Pitre | bd51e2f | 2012-09-01 03:03:25 +0100 | [diff] [blame] | 1947 | depends on ATAGS |
Victor Boivie | 4394c12 | 2011-05-04 17:07:55 +0100 | [diff] [blame] | 1948 | |
| 1949 | config CMDLINE_FROM_BOOTLOADER |
| 1950 | bool "Use bootloader kernel arguments if available" |
| 1951 | help |
| 1952 | Uses the command-line options passed by the boot loader. If |
| 1953 | the boot loader doesn't provide any, the default kernel command |
| 1954 | string provided in CMDLINE will be used. |
| 1955 | |
| 1956 | config CMDLINE_EXTEND |
| 1957 | bool "Extend bootloader kernel arguments" |
| 1958 | help |
| 1959 | The command-line arguments provided by the boot loader will be |
| 1960 | appended to the default kernel command string. |
| 1961 | |
Alexander Holler | 92d2040 | 2010-02-16 19:04:53 +0100 | [diff] [blame] | 1962 | config CMDLINE_FORCE |
| 1963 | bool "Always use the default kernel command string" |
Alexander Holler | 92d2040 | 2010-02-16 19:04:53 +0100 | [diff] [blame] | 1964 | help |
| 1965 | Always use the default kernel command string, even if the boot |
| 1966 | loader passes other arguments to the kernel. |
| 1967 | This is useful if you cannot or don't want to change the |
| 1968 | command-line options your boot loader passes to the kernel. |
Victor Boivie | 4394c12 | 2011-05-04 17:07:55 +0100 | [diff] [blame] | 1969 | endchoice |
Alexander Holler | 92d2040 | 2010-02-16 19:04:53 +0100 | [diff] [blame] | 1970 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1971 | config XIP_KERNEL |
| 1972 | bool "Kernel Execute-In-Place from ROM" |
Russell King | 1096813 | 2014-01-01 11:59:44 +0000 | [diff] [blame] | 1973 | depends on !ARM_LPAE && !ARCH_MULTIPLATFORM |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1974 | help |
| 1975 | Execute-In-Place allows the kernel to run from non-volatile storage |
| 1976 | directly addressable by the CPU, such as NOR flash. This saves RAM |
| 1977 | space since the text section of the kernel is not loaded from flash |
| 1978 | to RAM. Read-write sections, such as the data section and stack, |
| 1979 | are still copied to RAM. The XIP kernel is not compressed since |
| 1980 | it has to run directly from flash, so it will take more space to |
| 1981 | store it. The flash address used to link the kernel object files, |
| 1982 | and for storing it, is configuration dependent. Therefore, if you |
| 1983 | say Y here, you must know the proper physical address where to |
| 1984 | store the kernel image depending on your own flash memory usage. |
| 1985 | |
| 1986 | Also note that the make target becomes "make xipImage" rather than |
| 1987 | "make zImage" or "make Image". The final kernel binary to put in |
| 1988 | ROM memory will be arch/arm/boot/xipImage. |
| 1989 | |
| 1990 | If unsure, say N. |
| 1991 | |
| 1992 | config XIP_PHYS_ADDR |
| 1993 | hex "XIP Kernel Physical Location" |
| 1994 | depends on XIP_KERNEL |
| 1995 | default "0x00080000" |
| 1996 | help |
| 1997 | This is the physical address in your flash memory the kernel will |
| 1998 | be linked for and stored to. This address is dependent on your |
| 1999 | own flash usage. |
| 2000 | |
Richard Purdie | c587e4a | 2007-02-06 21:29:00 +0100 | [diff] [blame] | 2001 | config KEXEC |
| 2002 | bool "Kexec system call (EXPERIMENTAL)" |
Stephen Warren | 19ab428 | 2013-06-14 16:14:14 +0100 | [diff] [blame] | 2003 | depends on (!SMP || PM_SLEEP_SMP) |
Arnd Bergmann | cb1293e | 2015-05-26 15:40:44 +0100 | [diff] [blame] | 2004 | depends on !CPU_V7M |
Dave Young | 2965faa | 2015-09-09 15:38:55 -0700 | [diff] [blame] | 2005 | select KEXEC_CORE |
Richard Purdie | c587e4a | 2007-02-06 21:29:00 +0100 | [diff] [blame] | 2006 | help |
| 2007 | kexec is a system call that implements the ability to shutdown your |
| 2008 | current kernel, and to start another kernel. It is like a reboot |
Matt LaPlante | 01dd2fb | 2007-10-20 01:34:40 +0200 | [diff] [blame] | 2009 | but it is independent of the system firmware. And like a reboot |
Richard Purdie | c587e4a | 2007-02-06 21:29:00 +0100 | [diff] [blame] | 2010 | you can start any kernel with it, not just Linux. |
| 2011 | |
| 2012 | It is an ongoing process to be certain the hardware in a machine |
| 2013 | is properly shutdown, so do not be surprised if this code does not |
Geert Uytterhoeven | bf22069 | 2013-08-20 21:38:03 +0200 | [diff] [blame] | 2014 | initially work for you. |
Richard Purdie | c587e4a | 2007-02-06 21:29:00 +0100 | [diff] [blame] | 2015 | |
Richard Purdie | 4cd9d6f | 2008-01-02 00:56:46 +0100 | [diff] [blame] | 2016 | config ATAGS_PROC |
| 2017 | bool "Export atags in procfs" |
Nicolas Pitre | bd51e2f | 2012-09-01 03:03:25 +0100 | [diff] [blame] | 2018 | depends on ATAGS && KEXEC |
Uli Luckas | b98d729 | 2008-02-22 16:45:18 +0100 | [diff] [blame] | 2019 | default y |
Richard Purdie | 4cd9d6f | 2008-01-02 00:56:46 +0100 | [diff] [blame] | 2020 | help |
| 2021 | Should the atags used to boot the kernel be exported in an "atags" |
| 2022 | file in procfs. Useful with kexec. |
| 2023 | |
Mika Westerberg | cb5d39b | 2010-11-18 19:14:52 +0100 | [diff] [blame] | 2024 | config CRASH_DUMP |
| 2025 | bool "Build kdump crash kernel (EXPERIMENTAL)" |
Mika Westerberg | cb5d39b | 2010-11-18 19:14:52 +0100 | [diff] [blame] | 2026 | help |
| 2027 | Generate crash dump after being started by kexec. This should |
| 2028 | be normally only set in special crash dump kernels which are |
| 2029 | loaded in the main kernel with kexec-tools into a specially |
| 2030 | reserved region and then later executed after a crash by |
| 2031 | kdump/kexec. The crash dump kernel must be compiled to a |
| 2032 | memory address not used by the main kernel |
| 2033 | |
| 2034 | For more details see Documentation/kdump/kdump.txt |
| 2035 | |
Eric Miao | e69edc79 | 2010-07-05 15:56:50 +0200 | [diff] [blame] | 2036 | config AUTO_ZRELADDR |
| 2037 | bool "Auto calculation of the decompressed kernel image address" |
Eric Miao | e69edc79 | 2010-07-05 15:56:50 +0200 | [diff] [blame] | 2038 | help |
| 2039 | ZRELADDR is the physical address where the decompressed kernel |
| 2040 | image will be placed. If AUTO_ZRELADDR is selected, the address |
| 2041 | will be determined at run-time by masking the current IP with |
| 2042 | 0xf8000000. This assumes the zImage being placed in the first 128MB |
| 2043 | from start of memory. |
| 2044 | |
Roy Franz | 81a0bc3 | 2015-09-23 20:17:54 -0700 | [diff] [blame] | 2045 | config EFI_STUB |
| 2046 | bool |
| 2047 | |
| 2048 | config EFI |
| 2049 | bool "UEFI runtime support" |
| 2050 | depends on OF && !CPU_BIG_ENDIAN && MMU && AUTO_ZRELADDR && !XIP_KERNEL |
| 2051 | select UCS2_STRING |
| 2052 | select EFI_PARAMS_FROM_FDT |
| 2053 | select EFI_STUB |
| 2054 | select EFI_ARMSTUB |
| 2055 | select EFI_RUNTIME_WRAPPERS |
| 2056 | ---help--- |
| 2057 | This option provides support for runtime services provided |
| 2058 | by UEFI firmware (such as non-volatile variables, realtime |
| 2059 | clock, and platform reset). A UEFI stub is also provided to |
| 2060 | allow the kernel to be booted as an EFI application. This |
| 2061 | is only useful for kernels that may run on systems that have |
| 2062 | UEFI firmware. |
| 2063 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2064 | endmenu |
| 2065 | |
Russell King | ac9d7ef | 2008-08-18 17:26:00 +0100 | [diff] [blame] | 2066 | menu "CPU Power Management" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2067 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2068 | source "drivers/cpufreq/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2069 | |
Russell King | ac9d7ef | 2008-08-18 17:26:00 +0100 | [diff] [blame] | 2070 | source "drivers/cpuidle/Kconfig" |
| 2071 | |
| 2072 | endmenu |
| 2073 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2074 | menu "Floating point emulation" |
| 2075 | |
| 2076 | comment "At least one emulation must be selected" |
| 2077 | |
| 2078 | config FPE_NWFPE |
| 2079 | bool "NWFPE math emulation" |
Dave Martin | 593c252 | 2010-12-13 21:56:03 +0100 | [diff] [blame] | 2080 | depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2081 | ---help--- |
| 2082 | Say Y to include the NWFPE floating point emulator in the kernel. |
| 2083 | This is necessary to run most binaries. Linux does not currently |
| 2084 | support floating point hardware so you need to say Y here even if |
| 2085 | your machine has an FPA or floating point co-processor podule. |
| 2086 | |
| 2087 | You may say N here if you are going to load the Acorn FPEmulator |
| 2088 | early in the bootup. |
| 2089 | |
| 2090 | config FPE_NWFPE_XP |
| 2091 | bool "Support extended precision" |
Lennert Buytenhek | bedf142 | 2005-11-07 21:12:08 +0000 | [diff] [blame] | 2092 | depends on FPE_NWFPE |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2093 | help |
| 2094 | Say Y to include 80-bit support in the kernel floating-point |
| 2095 | emulator. Otherwise, only 32 and 64-bit support is compiled in. |
| 2096 | Note that gcc does not generate 80-bit operations by default, |
| 2097 | so in most cases this option only enlarges the size of the |
| 2098 | floating point emulator without any good reason. |
| 2099 | |
| 2100 | You almost surely want to say N here. |
| 2101 | |
| 2102 | config FPE_FASTFPE |
| 2103 | bool "FastFPE math emulation (EXPERIMENTAL)" |
Kees Cook | d6f94fa | 2013-01-16 18:53:14 -0800 | [diff] [blame] | 2104 | depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2105 | ---help--- |
| 2106 | Say Y here to include the FAST floating point emulator in the kernel. |
| 2107 | This is an experimental much faster emulator which now also has full |
| 2108 | precision for the mantissa. It does not support any exceptions. |
| 2109 | It is very simple, and approximately 3-6 times faster than NWFPE. |
| 2110 | |
| 2111 | It should be sufficient for most programs. It may be not suitable |
| 2112 | for scientific calculations, but you have to check this for yourself. |
| 2113 | If you do not feel you need a faster FP emulation you should better |
| 2114 | choose NWFPE. |
| 2115 | |
| 2116 | config VFP |
| 2117 | bool "VFP-format floating point maths" |
Russell King | e399b1a | 2011-01-17 15:08:32 +0000 | [diff] [blame] | 2118 | depends on CPU_V6 || CPU_V6K || CPU_ARM926T || CPU_V7 || CPU_FEROCEON |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2119 | help |
| 2120 | Say Y to include VFP support code in the kernel. This is needed |
| 2121 | if your hardware includes a VFP unit. |
| 2122 | |
| 2123 | Please see <file:Documentation/arm/VFP/release-notes.txt> for |
| 2124 | release notes and additional status information. |
| 2125 | |
| 2126 | Say N if your target does not have VFP hardware. |
| 2127 | |
Catalin Marinas | 25ebee0 | 2007-09-25 15:22:24 +0100 | [diff] [blame] | 2128 | config VFPv3 |
| 2129 | bool |
| 2130 | depends on VFP |
| 2131 | default y if CPU_V7 |
| 2132 | |
Catalin Marinas | b5872db | 2008-01-10 19:16:17 +0100 | [diff] [blame] | 2133 | config NEON |
| 2134 | bool "Advanced SIMD (NEON) Extension support" |
| 2135 | depends on VFPv3 && CPU_V7 |
| 2136 | help |
| 2137 | Say Y to include support code for NEON, the ARMv7 Advanced SIMD |
| 2138 | Extension. |
| 2139 | |
Ard Biesheuvel | 73c132c | 2013-05-16 11:41:48 +0200 | [diff] [blame] | 2140 | config KERNEL_MODE_NEON |
| 2141 | bool "Support for NEON in kernel mode" |
Russell King | c4a30c3 | 2013-09-22 11:08:50 +0100 | [diff] [blame] | 2142 | depends on NEON && AEABI |
Ard Biesheuvel | 73c132c | 2013-05-16 11:41:48 +0200 | [diff] [blame] | 2143 | help |
| 2144 | Say Y to include support for NEON in kernel mode. |
| 2145 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2146 | endmenu |
| 2147 | |
| 2148 | menu "Userspace binary formats" |
| 2149 | |
| 2150 | source "fs/Kconfig.binfmt" |
| 2151 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2152 | endmenu |
| 2153 | |
| 2154 | menu "Power management options" |
| 2155 | |
Russell King | eceab4a | 2005-11-15 11:31:41 +0000 | [diff] [blame] | 2156 | source "kernel/power/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2157 | |
Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 2158 | config ARCH_SUSPEND_POSSIBLE |
Ezequiel Garcia | 19a0519 | 2013-08-16 10:28:24 +0100 | [diff] [blame] | 2159 | depends on CPU_ARM920T || CPU_ARM926T || CPU_FEROCEON || CPU_SA1100 || \ |
Uwe Kleine-König | f0d7515 | 2012-02-01 10:00:00 +0100 | [diff] [blame] | 2160 | CPU_V6 || CPU_V6K || CPU_V7 || CPU_V7M || CPU_XSC3 || CPU_XSCALE || CPU_MOHAWK |
Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 2161 | def_bool y |
| 2162 | |
Arnd Bergmann | 15e0d9e | 2011-10-01 21:09:39 +0200 | [diff] [blame] | 2163 | config ARM_CPU_SUSPEND |
Lorenzo Pieralisi | 8b6f249 | 2016-02-01 18:01:30 +0100 | [diff] [blame] | 2164 | def_bool PM_SLEEP || BL_SWITCHER || ARM_PSCI_FW |
Lorenzo Pieralisi | 1b9bdf5 | 2016-02-01 18:01:29 +0100 | [diff] [blame] | 2165 | depends on ARCH_SUSPEND_POSSIBLE |
Arnd Bergmann | 15e0d9e | 2011-10-01 21:09:39 +0200 | [diff] [blame] | 2166 | |
Sebastian Capella | 603fb42 | 2014-03-25 01:20:29 +0100 | [diff] [blame] | 2167 | config ARCH_HIBERNATION_POSSIBLE |
| 2168 | bool |
| 2169 | depends on MMU |
| 2170 | default y if ARCH_SUSPEND_POSSIBLE |
| 2171 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2172 | endmenu |
| 2173 | |
Sam Ravnborg | d5950b4 | 2005-07-11 21:03:49 -0700 | [diff] [blame] | 2174 | source "net/Kconfig" |
| 2175 | |
Uwe Kleine-König | ac25150 | 2009-08-13 21:09:21 +0200 | [diff] [blame] | 2176 | source "drivers/Kconfig" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2177 | |
Kumar Gala | 916f743 | 2015-02-26 15:49:09 -0600 | [diff] [blame] | 2178 | source "drivers/firmware/Kconfig" |
| 2179 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2180 | source "fs/Kconfig" |
| 2181 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2182 | source "arch/arm/Kconfig.debug" |
| 2183 | |
| 2184 | source "security/Kconfig" |
| 2185 | |
| 2186 | source "crypto/Kconfig" |
Ard Biesheuvel | 652ccae | 2015-03-10 09:47:44 +0100 | [diff] [blame] | 2187 | if CRYPTO |
| 2188 | source "arch/arm/crypto/Kconfig" |
| 2189 | endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 2190 | |
| 2191 | source "lib/Kconfig" |
Christoffer Dall | 749cf76c | 2013-01-20 18:28:06 -0500 | [diff] [blame] | 2192 | |
| 2193 | source "arch/arm/kvm/Kconfig" |