Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 1 | # |
| 2 | # Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com) |
| 3 | # |
| 4 | # This program is free software; you can redistribute it and/or modify |
| 5 | # it under the terms of the GNU General Public License version 2 as |
| 6 | # published by the Free Software Foundation. |
| 7 | # |
| 8 | |
| 9 | config ARC |
| 10 | def_bool y |
Vineet Gupta | 4adeefe | 2013-01-18 15:12:18 +0530 | [diff] [blame] | 11 | select CLONE_BACKWARDS |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 12 | # ARC Busybox based initramfs absolutely relies on DEVTMPFS for /dev |
| 13 | select DEVTMPFS if !INITRAMFS_SOURCE="" |
| 14 | select GENERIC_ATOMIC64 |
| 15 | select GENERIC_CLOCKEVENTS |
| 16 | select GENERIC_FIND_FIRST_BIT |
| 17 | # for now, we don't need GENERIC_IRQ_PROBE, CONFIG_GENERIC_IRQ_CHIP |
| 18 | select GENERIC_IRQ_SHOW |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 19 | select GENERIC_PENDING_IRQ if SMP |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 20 | select GENERIC_SMP_IDLE_THREAD |
Mischa Jonker | f46121b | 2013-01-18 15:12:24 +0530 | [diff] [blame] | 21 | select HAVE_ARCH_KGDB |
Vineet Gupta | 547f112 | 2013-01-18 15:12:22 +0530 | [diff] [blame] | 22 | select HAVE_ARCH_TRACEHOOK |
Gilad Ben-Yossef | 4368902 | 2013-01-22 16:48:45 +0530 | [diff] [blame] | 23 | select HAVE_IOREMAP_PROT |
Vineet Gupta | 4d86dfb | 2013-01-22 17:03:59 +0530 | [diff] [blame] | 24 | select HAVE_KPROBES |
| 25 | select HAVE_KRETPROBES |
Vineet Gupta | c121c50 | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 26 | select HAVE_MEMBLOCK |
Vineet Gupta | 854a0d9 | 2013-01-22 17:03:19 +0530 | [diff] [blame] | 27 | select HAVE_MOD_ARCH_SPECIFIC if ARC_DW2_UNWIND |
Vineet Gupta | 769bc1f | 2013-01-22 17:02:38 +0530 | [diff] [blame] | 28 | select HAVE_OPROFILE |
Vineet Gupta | 9c57564 | 2013-01-18 15:12:24 +0530 | [diff] [blame] | 29 | select HAVE_PERF_EVENTS |
Vineet Gupta | 999159a | 2013-01-22 17:00:52 +0530 | [diff] [blame] | 30 | select IRQ_DOMAIN |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 31 | select MODULES_USE_ELF_RELA |
Vineet Gupta | c121c50 | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 32 | select NO_BOOTMEM |
Vineet Gupta | 999159a | 2013-01-22 17:00:52 +0530 | [diff] [blame] | 33 | select OF |
| 34 | select OF_EARLY_FLATTREE |
Vineet Gupta | 9c57564 | 2013-01-18 15:12:24 +0530 | [diff] [blame] | 35 | select PERF_USE_VMALLOC |
Dave Hansen | d1a1dc0 | 2013-07-01 13:04:42 -0700 | [diff] [blame] | 36 | select HAVE_DEBUG_STACKOVERFLOW |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 37 | |
Vineet Gupta | 0dafafc | 2013-09-06 14:18:17 +0530 | [diff] [blame] | 38 | config TRACE_IRQFLAGS_SUPPORT |
| 39 | def_bool y |
| 40 | |
| 41 | config LOCKDEP_SUPPORT |
| 42 | def_bool y |
| 43 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 44 | config SCHED_OMIT_FRAME_POINTER |
| 45 | def_bool y |
| 46 | |
| 47 | config GENERIC_CSUM |
| 48 | def_bool y |
| 49 | |
| 50 | config RWSEM_GENERIC_SPINLOCK |
| 51 | def_bool y |
| 52 | |
| 53 | config ARCH_FLATMEM_ENABLE |
| 54 | def_bool y |
| 55 | |
| 56 | config MMU |
| 57 | def_bool y |
| 58 | |
| 59 | config NO_IOPORT |
| 60 | def_bool y |
| 61 | |
| 62 | config GENERIC_CALIBRATE_DELAY |
| 63 | def_bool y |
| 64 | |
| 65 | config GENERIC_HWEIGHT |
| 66 | def_bool y |
| 67 | |
Vineet Gupta | 44c8bb9 | 2013-01-18 15:12:23 +0530 | [diff] [blame] | 68 | config STACKTRACE_SUPPORT |
| 69 | def_bool y |
| 70 | select STACKTRACE |
| 71 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 72 | config HAVE_LATENCYTOP_SUPPORT |
| 73 | def_bool y |
| 74 | |
| 75 | config NO_DMA |
| 76 | def_bool n |
| 77 | |
| 78 | source "init/Kconfig" |
| 79 | source "kernel/Kconfig.freezer" |
| 80 | |
| 81 | menu "ARC Architecture Configuration" |
| 82 | |
Vineet Gupta | 93ad700 | 2013-01-22 16:51:50 +0530 | [diff] [blame] | 83 | menu "ARC Platform/SoC/Board" |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 84 | |
Vineet Gupta | 93ad700 | 2013-01-22 16:51:50 +0530 | [diff] [blame] | 85 | source "arch/arc/plat-arcfpga/Kconfig" |
Christian Ruppert | 072eb69 | 2013-04-12 08:40:59 +0200 | [diff] [blame] | 86 | source "arch/arc/plat-tb10x/Kconfig" |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 87 | #New platform adds here |
Vineet Gupta | 93ad700 | 2013-01-22 16:51:50 +0530 | [diff] [blame] | 88 | |
Vineet Gupta | 53d9895 | 2013-01-18 15:12:25 +0530 | [diff] [blame] | 89 | endmenu |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 90 | |
| 91 | menu "ARC CPU Configuration" |
| 92 | |
| 93 | choice |
| 94 | prompt "ARC Core" |
| 95 | default ARC_CPU_770 |
| 96 | |
| 97 | config ARC_CPU_750D |
| 98 | bool "ARC750D" |
| 99 | help |
| 100 | Support for ARC750 core |
| 101 | |
| 102 | config ARC_CPU_770 |
| 103 | bool "ARC770" |
| 104 | select ARC_CPU_REL_4_10 |
| 105 | help |
| 106 | Support for ARC770 core introduced with Rel 4.10 (Summer 2011) |
| 107 | This core has a bunch of cool new features: |
| 108 | -MMU-v3: Variable Page Sz (4k, 8k, 16k), bigger J-TLB (128x4) |
| 109 | Shared Address Spaces (for sharing TLB entires in MMU) |
| 110 | -Caches: New Prog Model, Region Flush |
| 111 | -Insns: endian swap, load-locked/store-conditional, time-stamp-ctr |
| 112 | |
| 113 | endchoice |
| 114 | |
| 115 | config CPU_BIG_ENDIAN |
| 116 | bool "Enable Big Endian Mode" |
| 117 | default n |
| 118 | help |
| 119 | Build kernel for Big Endian Mode of ARC CPU |
| 120 | |
Vineet Gupta | fc7943d | 2013-01-22 16:53:57 +0530 | [diff] [blame] | 121 | # If a platform can't work with 0x8000_0000 based dma_addr_t |
| 122 | config ARC_PLAT_NEEDS_CPU_TO_DMA |
| 123 | bool |
| 124 | |
Vineet Gupta | 41195d2 | 2013-01-18 15:12:23 +0530 | [diff] [blame] | 125 | config SMP |
| 126 | bool "Symmetric Multi-Processing (Incomplete)" |
| 127 | default n |
| 128 | select USE_GENERIC_SMP_HELPERS |
| 129 | help |
| 130 | This enables support for systems with more than one CPU. If you have |
| 131 | a system with only one CPU, like most personal computers, say N. If |
| 132 | you have a system with more than one CPU, say Y. |
| 133 | |
| 134 | if SMP |
| 135 | |
| 136 | config ARC_HAS_COH_CACHES |
| 137 | def_bool n |
| 138 | |
Vineet Gupta | 41195d2 | 2013-01-18 15:12:23 +0530 | [diff] [blame] | 139 | config ARC_HAS_REENTRANT_IRQ_LV2 |
| 140 | def_bool n |
| 141 | |
| 142 | endif |
| 143 | |
| 144 | config NR_CPUS |
Noam Camus | 3aa4f80 | 2013-06-03 15:19:59 +0300 | [diff] [blame] | 145 | int "Maximum number of CPUs (2-4096)" |
| 146 | range 2 4096 |
Vineet Gupta | 41195d2 | 2013-01-18 15:12:23 +0530 | [diff] [blame] | 147 | depends on SMP |
| 148 | default "2" |
| 149 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 150 | menuconfig ARC_CACHE |
| 151 | bool "Enable Cache Support" |
| 152 | default y |
Vineet Gupta | 41195d2 | 2013-01-18 15:12:23 +0530 | [diff] [blame] | 153 | # if SMP, cache enabled ONLY if ARC implementation has cache coherency |
| 154 | depends on !SMP || ARC_HAS_COH_CACHES |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 155 | |
| 156 | if ARC_CACHE |
| 157 | |
| 158 | config ARC_CACHE_LINE_SHIFT |
| 159 | int "Cache Line Length (as power of 2)" |
| 160 | range 5 7 |
| 161 | default "6" |
| 162 | help |
| 163 | Starting with ARC700 4.9, Cache line length is configurable, |
| 164 | This option specifies "N", with Line-len = 2 power N |
| 165 | So line lengths of 32, 64, 128 are specified by 5,6,7, respectively |
| 166 | Linux only supports same line lengths for I and D caches. |
| 167 | |
| 168 | config ARC_HAS_ICACHE |
| 169 | bool "Use Instruction Cache" |
| 170 | default y |
| 171 | |
| 172 | config ARC_HAS_DCACHE |
| 173 | bool "Use Data Cache" |
| 174 | default y |
| 175 | |
| 176 | config ARC_CACHE_PAGES |
| 177 | bool "Per Page Cache Control" |
| 178 | default y |
| 179 | depends on ARC_HAS_ICACHE || ARC_HAS_DCACHE |
| 180 | help |
| 181 | This can be used to over-ride the global I/D Cache Enable on a |
| 182 | per-page basis (but only for pages accessed via MMU such as |
| 183 | Kernel Virtual address or User Virtual Address) |
| 184 | TLB entries have a per-page Cache Enable Bit. |
| 185 | Note that Global I/D ENABLE + Per Page DISABLE works but corollary |
| 186 | Global DISABLE + Per Page ENABLE won't work |
| 187 | |
Vineet Gupta | 4102b53 | 2013-05-09 21:54:51 +0530 | [diff] [blame] | 188 | config ARC_CACHE_VIPT_ALIASING |
| 189 | bool "Support VIPT Aliasing D$" |
Alexey Brodkin | 2f9e996 | 2013-06-18 16:40:29 +0400 | [diff] [blame] | 190 | depends on ARC_HAS_DCACHE |
Vineet Gupta | 4102b53 | 2013-05-09 21:54:51 +0530 | [diff] [blame] | 191 | default n |
| 192 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 193 | endif #ARC_CACHE |
| 194 | |
Vineet Gupta | 8b5850f | 2013-01-18 15:12:25 +0530 | [diff] [blame] | 195 | config ARC_HAS_ICCM |
| 196 | bool "Use ICCM" |
| 197 | help |
| 198 | Single Cycle RAMS to store Fast Path Code |
| 199 | default n |
| 200 | |
| 201 | config ARC_ICCM_SZ |
| 202 | int "ICCM Size in KB" |
| 203 | default "64" |
| 204 | depends on ARC_HAS_ICCM |
| 205 | |
| 206 | config ARC_HAS_DCCM |
| 207 | bool "Use DCCM" |
| 208 | help |
| 209 | Single Cycle RAMS to store Fast Path Data |
| 210 | default n |
| 211 | |
| 212 | config ARC_DCCM_SZ |
| 213 | int "DCCM Size in KB" |
| 214 | default "64" |
| 215 | depends on ARC_HAS_DCCM |
| 216 | |
| 217 | config ARC_DCCM_BASE |
| 218 | hex "DCCM map address" |
| 219 | default "0xA0000000" |
| 220 | depends on ARC_HAS_DCCM |
| 221 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 222 | config ARC_HAS_HW_MPY |
| 223 | bool "Use Hardware Multiplier (Normal or Faster XMAC)" |
| 224 | default y |
| 225 | help |
| 226 | Influences how gcc generates code for MPY operations. |
| 227 | If enabled, MPYxx insns are generated, provided by Standard/XMAC |
| 228 | Multipler. Otherwise software multipy lib is used |
| 229 | |
| 230 | choice |
| 231 | prompt "ARC700 MMU Version" |
| 232 | default ARC_MMU_V3 if ARC_CPU_770 |
| 233 | default ARC_MMU_V2 if ARC_CPU_750D |
| 234 | |
| 235 | config ARC_MMU_V1 |
| 236 | bool "MMU v1" |
| 237 | help |
| 238 | Orig ARC700 MMU |
| 239 | |
| 240 | config ARC_MMU_V2 |
| 241 | bool "MMU v2" |
| 242 | help |
| 243 | Fixed the deficiency of v1 - possible thrashing in memcpy sceanrio |
| 244 | when 2 D-TLB and 1 I-TLB entries index into same 2way set. |
| 245 | |
| 246 | config ARC_MMU_V3 |
| 247 | bool "MMU v3" |
| 248 | depends on ARC_CPU_770 |
| 249 | help |
| 250 | Introduced with ARC700 4.10: New Features |
| 251 | Variable Page size (1k-16k), var JTLB size 128 x (2 or 4) |
| 252 | Shared Address Spaces (SASID) |
| 253 | |
| 254 | endchoice |
| 255 | |
| 256 | |
| 257 | choice |
| 258 | prompt "MMU Page Size" |
| 259 | default ARC_PAGE_SIZE_8K |
| 260 | |
| 261 | config ARC_PAGE_SIZE_8K |
| 262 | bool "8KB" |
| 263 | help |
| 264 | Choose between 8k vs 16k |
| 265 | |
| 266 | config ARC_PAGE_SIZE_16K |
| 267 | bool "16KB" |
| 268 | depends on ARC_MMU_V3 |
| 269 | |
| 270 | config ARC_PAGE_SIZE_4K |
| 271 | bool "4KB" |
| 272 | depends on ARC_MMU_V3 |
| 273 | |
| 274 | endchoice |
| 275 | |
Vineet Gupta | 4788a59 | 2013-01-18 15:12:22 +0530 | [diff] [blame] | 276 | config ARC_COMPACT_IRQ_LEVELS |
| 277 | bool "ARCompact IRQ Priorities: High(2)/Low(1)" |
| 278 | default n |
| 279 | # Timer HAS to be high priority, for any other high priority config |
| 280 | select ARC_IRQ3_LV2 |
Vineet Gupta | 41195d2 | 2013-01-18 15:12:23 +0530 | [diff] [blame] | 281 | # if SMP, LV2 enabled ONLY if ARC implementation has LV2 re-entrancy |
| 282 | depends on !SMP || ARC_HAS_REENTRANT_IRQ_LV2 |
Vineet Gupta | 4788a59 | 2013-01-18 15:12:22 +0530 | [diff] [blame] | 283 | |
| 284 | if ARC_COMPACT_IRQ_LEVELS |
| 285 | |
| 286 | config ARC_IRQ3_LV2 |
| 287 | bool |
| 288 | |
| 289 | config ARC_IRQ5_LV2 |
| 290 | bool |
| 291 | |
| 292 | config ARC_IRQ6_LV2 |
| 293 | bool |
| 294 | |
| 295 | endif |
| 296 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 297 | config ARC_FPU_SAVE_RESTORE |
| 298 | bool "Enable FPU state persistence across context switch" |
| 299 | default n |
| 300 | help |
| 301 | Double Precision Floating Point unit had dedictaed regs which |
| 302 | need to be saved/restored across context-switch. |
| 303 | Note that ARC FPU is overly simplistic, unlike say x86, which has |
| 304 | hardware pieces to allow software to conditionally save/restore, |
| 305 | based on actual usage of FPU by a task. Thus our implemn does |
| 306 | this for all tasks in system. |
| 307 | |
Vineet Gupta | fbf8e13 | 2013-03-30 15:07:47 +0530 | [diff] [blame] | 308 | config ARC_CANT_LLSC |
| 309 | def_bool n |
| 310 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 311 | menuconfig ARC_CPU_REL_4_10 |
| 312 | bool "Enable support for Rel 4.10 features" |
| 313 | default n |
| 314 | help |
| 315 | -ARC770 (and dependent features) enabled |
| 316 | -ARC750 also shares some of the new features with 770 |
| 317 | |
| 318 | config ARC_HAS_LLSC |
| 319 | bool "Insn: LLOCK/SCOND (efficient atomic ops)" |
| 320 | default y |
Vineet Gupta | fbf8e13 | 2013-03-30 15:07:47 +0530 | [diff] [blame] | 321 | depends on ARC_CPU_770 && !ARC_CANT_LLSC |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 322 | |
| 323 | config ARC_HAS_SWAPE |
| 324 | bool "Insn: SWAPE (endian-swap)" |
| 325 | default y |
| 326 | depends on ARC_CPU_REL_4_10 |
| 327 | |
| 328 | config ARC_HAS_RTSC |
| 329 | bool "Insn: RTSC (64-bit r/o cycle counter)" |
| 330 | default y |
| 331 | depends on ARC_CPU_REL_4_10 |
Vineet Gupta | 7d0857a | 2013-09-09 16:04:15 +0530 | [diff] [blame] | 332 | depends on !SMP |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 333 | |
| 334 | endmenu # "ARC CPU Configuration" |
| 335 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 336 | config LINUX_LINK_BASE |
| 337 | hex "Linux Link Address" |
| 338 | default "0x80000000" |
| 339 | help |
| 340 | ARC700 divides the 32 bit phy address space into two equal halves |
| 341 | -Lower 2G (0 - 0x7FFF_FFFF ) is user virtual, translated by MMU |
| 342 | -Upper 2G (0x8000_0000 onwards) is untranslated, for kernel |
| 343 | Typically Linux kernel is linked at the start of untransalted addr, |
| 344 | hence the default value of 0x8zs. |
| 345 | However some customers have peripherals mapped at this addr, so |
| 346 | Linux needs to be scooted a bit. |
| 347 | If you don't know what the above means, leave this setting alone. |
| 348 | |
Vineet Gupta | 080c374 | 2013-02-11 19:52:57 +0530 | [diff] [blame] | 349 | config ARC_CURR_IN_REG |
| 350 | bool "Dedicate Register r25 for current_task pointer" |
| 351 | default y |
| 352 | help |
| 353 | This reserved Register R25 to point to Current Task in |
| 354 | kernel mode. This saves memory access for each such access |
| 355 | |
Vineet Gupta | 2e651ea | 2013-01-23 16:30:36 +0530 | [diff] [blame] | 356 | |
| 357 | config ARC_MISALIGN_ACCESS |
| 358 | bool "Emulate unaligned memory access (userspace only)" |
| 359 | default N |
| 360 | select SYSCTL_ARCH_UNALIGN_NO_WARN |
| 361 | select SYSCTL_ARCH_UNALIGN_ALLOW |
| 362 | help |
| 363 | This enables misaligned 16 & 32 bit memory access from user space. |
| 364 | Use ONLY-IF-ABS-NECESSARY as it will be very slow and also can hide |
| 365 | potential bugs in code |
| 366 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 367 | config HZ |
| 368 | int "Timer Frequency" |
| 369 | default 100 |
| 370 | |
Vineet Gupta | cbe056f | 2013-01-18 15:12:25 +0530 | [diff] [blame] | 371 | config ARC_METAWARE_HLINK |
| 372 | bool "Support for Metaware debugger assisted Host access" |
| 373 | default n |
| 374 | help |
| 375 | This options allows a Linux userland apps to directly access |
| 376 | host file system (open/creat/read/write etc) with help from |
| 377 | Metaware Debugger. This can come in handy for Linux-host communication |
| 378 | when there is no real usable peripheral such as EMAC. |
| 379 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 380 | menuconfig ARC_DBG |
| 381 | bool "ARC debugging" |
| 382 | default y |
| 383 | |
Vineet Gupta | 854a0d9 | 2013-01-22 17:03:19 +0530 | [diff] [blame] | 384 | config ARC_DW2_UNWIND |
| 385 | bool "Enable DWARF specific kernel stack unwind" |
| 386 | depends on ARC_DBG |
| 387 | default y |
| 388 | select KALLSYMS |
| 389 | help |
| 390 | Compiles the kernel with DWARF unwind information and can be used |
| 391 | to get stack backtraces. |
| 392 | |
| 393 | If you say Y here the resulting kernel image will be slightly larger |
| 394 | but not slower, and it will give very useful debugging information. |
| 395 | If you don't debug the kernel, you can say N, but we may not be able |
| 396 | to solve problems without frame unwind information |
| 397 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 398 | config ARC_DBG_TLB_PARANOIA |
| 399 | bool "Paranoia Checks in Low Level TLB Handlers" |
Mischa Jonker | f46121b | 2013-01-18 15:12:24 +0530 | [diff] [blame] | 400 | depends on ARC_DBG |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 401 | default n |
| 402 | |
| 403 | config ARC_DBG_TLB_MISS_COUNT |
| 404 | bool "Profile TLB Misses" |
| 405 | default n |
| 406 | select DEBUG_FS |
| 407 | depends on ARC_DBG |
| 408 | help |
| 409 | Counts number of I and D TLB Misses and exports them via Debugfs |
| 410 | The counters can be cleared via Debugfs as well |
| 411 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 412 | config CMDLINE_UBOOT |
| 413 | bool "Support U-boot kernel command line passing" |
| 414 | default n |
| 415 | help |
| 416 | If you are using U-boot (www.denx.de) and wish to pass the kernel |
| 417 | command line from the U-boot environment to the Linux kernel then |
| 418 | switch this option on. |
| 419 | ARC U-boot will setup the cmdline in RAM/flash and set r2 to point |
Vineet Gupta | 6971881 | 2013-04-09 16:12:01 +0530 | [diff] [blame] | 420 | to it. kernel startup code will append this to DeviceTree |
| 421 | /bootargs provided cmdline args. |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 422 | |
Vineet Gupta | 999159a | 2013-01-22 17:00:52 +0530 | [diff] [blame] | 423 | config ARC_BUILTIN_DTB_NAME |
| 424 | string "Built in DTB" |
| 425 | help |
| 426 | Set the name of the DTB to embed in the vmlinux binary |
| 427 | Leaving it blank selects the minimal "skeleton" dtb |
| 428 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 429 | source "kernel/Kconfig.preempt" |
| 430 | |
Vineet Gupta | 5628832 | 2013-04-06 14:16:20 +0530 | [diff] [blame] | 431 | menu "Executable file formats" |
| 432 | source "fs/Kconfig.binfmt" |
| 433 | endmenu |
| 434 | |
Vineet Gupta | cfdbc2e | 2013-01-18 15:12:20 +0530 | [diff] [blame] | 435 | endmenu # "ARC Architecture Configuration" |
| 436 | |
| 437 | source "mm/Kconfig" |
| 438 | source "net/Kconfig" |
| 439 | source "drivers/Kconfig" |
| 440 | source "fs/Kconfig" |
| 441 | source "arch/arc/Kconfig.debug" |
| 442 | source "security/Kconfig" |
| 443 | source "crypto/Kconfig" |
| 444 | source "lib/Kconfig" |