Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 1 | config ZONE_DMA |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 2 | def_bool y |
Christoph Lameter | 66701b1 | 2007-02-10 01:43:09 -0800 | [diff] [blame] | 3 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 4 | config XTENSA |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 5 | def_bool y |
Max Filippov | 8f371c7 | 2013-04-15 09:21:35 +0400 | [diff] [blame] | 6 | select ARCH_WANT_FRAME_POINTERS |
Max Filippov | e969161 | 2013-01-06 16:17:21 +0400 | [diff] [blame] | 7 | select ARCH_WANT_IPC_PARSE_VERSION |
Max Filippov | 6ed65f3 | 2012-09-17 05:44:42 +0400 | [diff] [blame] | 8 | select ARCH_WANT_OPTIONAL_GPIOLIB |
Max Filippov | 25df819 | 2014-02-18 15:29:11 +0400 | [diff] [blame] | 9 | select BUILDTIME_EXTABLE_SORT |
Al Viro | 3e41f9b | 2012-10-26 23:41:40 -0400 | [diff] [blame] | 10 | select CLONE_BACKWARDS |
Max Filippov | bda8932 | 2014-01-29 06:20:46 +0400 | [diff] [blame] | 11 | select COMMON_CLK |
Max Filippov | 920f8a3 | 2014-06-16 08:20:17 +0400 | [diff] [blame] | 12 | select GENERIC_ATOMIC64 |
| 13 | select GENERIC_CLOCKEVENTS |
| 14 | select GENERIC_IRQ_SHOW |
| 15 | select GENERIC_PCI_IOMAP |
| 16 | select GENERIC_SCHED_CLOCK |
Max Filippov | c75959a | 2015-05-25 06:55:05 +0300 | [diff] [blame] | 17 | select HAVE_DMA_API_DEBUG |
| 18 | select HAVE_DMA_ATTRS |
Max Filippov | 920f8a3 | 2014-06-16 08:20:17 +0400 | [diff] [blame] | 19 | select HAVE_FUNCTION_TRACER |
Max Filippov | 920f8a3 | 2014-06-16 08:20:17 +0400 | [diff] [blame] | 20 | select HAVE_IRQ_TIME_ACCOUNTING |
| 21 | select HAVE_OPROFILE |
| 22 | select HAVE_PERF_EVENTS |
| 23 | select IRQ_DOMAIN |
| 24 | select MODULES_USE_ELF_RELA |
Max Filippov | db8165f | 2015-06-04 13:41:27 +0300 | [diff] [blame^] | 25 | select PERF_USE_VMALLOC |
Max Filippov | 920f8a3 | 2014-06-16 08:20:17 +0400 | [diff] [blame] | 26 | select VIRT_TO_BUS |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 27 | help |
| 28 | Xtensa processors are 32-bit RISC machines designed by Tensilica |
| 29 | primarily for embedded systems. These processors are both |
| 30 | configurable and extensible. The Linux port to the Xtensa |
| 31 | architecture supports all processor configurations and extensions, |
| 32 | with reasonable minimum requirements. The Xtensa Linux project has |
Masanari Iida | 0ada449 | 2013-01-04 17:29:18 +0900 | [diff] [blame] | 33 | a home page at <http://www.linux-xtensa.org/>. |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 34 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 35 | config RWSEM_XCHGADD_ALGORITHM |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 36 | def_bool y |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 37 | |
Akinobu Mita | d4337aa | 2006-03-26 01:39:43 -0800 | [diff] [blame] | 38 | config GENERIC_HWEIGHT |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 39 | def_bool y |
Akinobu Mita | d4337aa | 2006-03-26 01:39:43 -0800 | [diff] [blame] | 40 | |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 41 | config ARCH_HAS_ILOG2_U32 |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 42 | def_bool n |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 43 | |
| 44 | config ARCH_HAS_ILOG2_U64 |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 45 | def_bool n |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 46 | |
Uwe Kleine-König | ce816fa | 2014-04-07 15:39:19 -0700 | [diff] [blame] | 47 | config NO_IOPORT_MAP |
Max Filippov | d046f77 | 2012-09-17 05:44:41 +0400 | [diff] [blame] | 48 | def_bool n |
Al Viro | 5ea8176 | 2007-02-11 15:41:31 +0000 | [diff] [blame] | 49 | |
H. Peter Anvin | bdc8078 | 2008-02-08 04:21:26 -0800 | [diff] [blame] | 50 | config HZ |
| 51 | int |
| 52 | default 100 |
| 53 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 54 | source "init/Kconfig" |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 55 | source "kernel/Kconfig.freezer" |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 56 | |
Max Filippov | 8f371c7 | 2013-04-15 09:21:35 +0400 | [diff] [blame] | 57 | config LOCKDEP_SUPPORT |
| 58 | def_bool y |
| 59 | |
Max Filippov | 3e4196a | 2013-04-15 09:20:48 +0400 | [diff] [blame] | 60 | config STACKTRACE_SUPPORT |
| 61 | def_bool y |
| 62 | |
Max Filippov | c92931b | 2013-03-31 06:32:42 +0400 | [diff] [blame] | 63 | config TRACE_IRQFLAGS_SUPPORT |
| 64 | def_bool y |
| 65 | |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 66 | config MMU |
Max Filippov | de7c1c7 | 2015-06-27 07:31:12 +0300 | [diff] [blame] | 67 | def_bool n |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 68 | |
Johannes Weiner | 4c0d214 | 2009-03-04 16:21:31 +0100 | [diff] [blame] | 69 | config VARIANT_IRQ_SWITCH |
| 70 | def_bool n |
| 71 | |
Baruch Siach | a1a2bde | 2013-12-18 09:10:29 +0200 | [diff] [blame] | 72 | config HAVE_XTENSA_GPIO32 |
| 73 | def_bool n |
| 74 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 75 | menu "Processor type and features" |
| 76 | |
| 77 | choice |
| 78 | prompt "Xtensa Processor Configuration" |
Chris Zankel | 173d668 | 2006-12-10 02:18:48 -0800 | [diff] [blame] | 79 | default XTENSA_VARIANT_FSF |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 80 | |
Chris Zankel | 173d668 | 2006-12-10 02:18:48 -0800 | [diff] [blame] | 81 | config XTENSA_VARIANT_FSF |
Chris Zankel | 0025427 | 2008-10-21 09:11:43 -0700 | [diff] [blame] | 82 | bool "fsf - default (not generic) configuration" |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 83 | select MMU |
Chris Zankel | 0025427 | 2008-10-21 09:11:43 -0700 | [diff] [blame] | 84 | |
| 85 | config XTENSA_VARIANT_DC232B |
| 86 | bool "dc232b - Diamond 232L Standard Core Rev.B (LE)" |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 87 | select MMU |
Baruch Siach | a1a2bde | 2013-12-18 09:10:29 +0200 | [diff] [blame] | 88 | select HAVE_XTENSA_GPIO32 |
Chris Zankel | 0025427 | 2008-10-21 09:11:43 -0700 | [diff] [blame] | 89 | help |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 90 | This variant refers to Tensilica's Diamond 232L Standard core Rev.B (LE). |
Johannes Weiner | 000af2c | 2009-03-04 16:21:32 +0100 | [diff] [blame] | 91 | |
Pete Delaney | d0b73b4 | 2013-01-05 04:57:16 +0400 | [diff] [blame] | 92 | config XTENSA_VARIANT_DC233C |
| 93 | bool "dc233c - Diamond 233L Standard Core Rev.C (LE)" |
| 94 | select MMU |
Baruch Siach | a1a2bde | 2013-12-18 09:10:29 +0200 | [diff] [blame] | 95 | select HAVE_XTENSA_GPIO32 |
Pete Delaney | d0b73b4 | 2013-01-05 04:57:16 +0400 | [diff] [blame] | 96 | help |
| 97 | This variant refers to Tensilica's Diamond 233L Standard core Rev.C (LE). |
| 98 | |
Max Filippov | 420ae95 | 2014-06-16 07:25:06 +0400 | [diff] [blame] | 99 | config XTENSA_VARIANT_CUSTOM |
| 100 | bool "Custom Xtensa processor configuration" |
Max Filippov | 420ae95 | 2014-06-16 07:25:06 +0400 | [diff] [blame] | 101 | select HAVE_XTENSA_GPIO32 |
| 102 | help |
| 103 | Select this variant to use a custom Xtensa processor configuration. |
| 104 | You will be prompted for a processor variant CORENAME. |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 105 | endchoice |
| 106 | |
Max Filippov | 420ae95 | 2014-06-16 07:25:06 +0400 | [diff] [blame] | 107 | config XTENSA_VARIANT_CUSTOM_NAME |
| 108 | string "Xtensa Processor Custom Core Variant Name" |
| 109 | depends on XTENSA_VARIANT_CUSTOM |
| 110 | help |
| 111 | Provide the name of a custom Xtensa processor variant. |
| 112 | This CORENAME selects arch/xtensa/variant/CORENAME. |
| 113 | Dont forget you have to select MMU if you have one. |
| 114 | |
| 115 | config XTENSA_VARIANT_NAME |
| 116 | string |
| 117 | default "dc232b" if XTENSA_VARIANT_DC232B |
| 118 | default "dc233c" if XTENSA_VARIANT_DC233C |
| 119 | default "fsf" if XTENSA_VARIANT_FSF |
Max Filippov | 420ae95 | 2014-06-16 07:25:06 +0400 | [diff] [blame] | 120 | default XTENSA_VARIANT_CUSTOM_NAME if XTENSA_VARIANT_CUSTOM |
| 121 | |
| 122 | config XTENSA_VARIANT_MMU |
| 123 | bool "Core variant has a Full MMU (TLB, Pages, Protection, etc)" |
| 124 | depends on XTENSA_VARIANT_CUSTOM |
| 125 | default y |
Max Filippov | de7c1c7 | 2015-06-27 07:31:12 +0300 | [diff] [blame] | 126 | select MMU |
Max Filippov | 420ae95 | 2014-06-16 07:25:06 +0400 | [diff] [blame] | 127 | help |
| 128 | Build a Conventional Kernel with full MMU support, |
| 129 | ie: it supports a TLB with auto-loading, page protection. |
| 130 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 131 | config XTENSA_UNALIGNED_USER |
| 132 | bool "Unaligned memory access in use space" |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 133 | help |
| 134 | The Xtensa architecture currently does not handle unaligned |
| 135 | memory accesses in hardware but through an exception handler. |
| 136 | Per default, unaligned memory accesses are disabled in user space. |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 137 | |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 138 | Say Y here to enable unaligned memory access in user space. |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 139 | |
Frederic Weisbecker | bd96efe | 2011-07-05 17:45:34 +0200 | [diff] [blame] | 140 | source "kernel/Kconfig.preempt" |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 141 | |
Max Filippov | f615136 | 2013-10-17 02:42:26 +0400 | [diff] [blame] | 142 | config HAVE_SMP |
| 143 | bool "System Supports SMP (MX)" |
Max Filippov | de7c1c7 | 2015-06-27 07:31:12 +0300 | [diff] [blame] | 144 | depends on XTENSA_VARIANT_CUSTOM |
Max Filippov | f615136 | 2013-10-17 02:42:26 +0400 | [diff] [blame] | 145 | select XTENSA_MX |
| 146 | help |
| 147 | This option is use to indicate that the system-on-a-chip (SOC) |
| 148 | supports Multiprocessing. Multiprocessor support implemented above |
| 149 | the CPU core definition and currently needs to be selected manually. |
| 150 | |
| 151 | Multiprocessor support in implemented with external cache and |
Masanari Iida | 769a12a | 2015-04-27 22:52:07 +0900 | [diff] [blame] | 152 | interrupt controllers. |
Max Filippov | f615136 | 2013-10-17 02:42:26 +0400 | [diff] [blame] | 153 | |
| 154 | The MX interrupt distributer adds Interprocessor Interrupts |
| 155 | and causes the IRQ numbers to be increased by 4 for devices |
| 156 | like the open cores ethernet driver and the serial interface. |
| 157 | |
| 158 | You still have to select "Enable SMP" to enable SMP on this SOC. |
| 159 | |
| 160 | config SMP |
| 161 | bool "Enable Symmetric multi-processing support" |
| 162 | depends on HAVE_SMP |
Max Filippov | f615136 | 2013-10-17 02:42:26 +0400 | [diff] [blame] | 163 | select GENERIC_SMP_IDLE_THREAD |
| 164 | help |
| 165 | Enabled SMP Software; allows more than one CPU/CORE |
| 166 | to be activated during startup. |
| 167 | |
| 168 | config NR_CPUS |
| 169 | depends on SMP |
| 170 | int "Maximum number of CPUs (2-32)" |
| 171 | range 2 32 |
| 172 | default "4" |
| 173 | |
Max Filippov | 49b424f | 2013-10-17 02:42:28 +0400 | [diff] [blame] | 174 | config HOTPLUG_CPU |
| 175 | bool "Enable CPU hotplug support" |
| 176 | depends on SMP |
| 177 | help |
| 178 | Say Y here to allow turning CPUs off and on. CPUs can be |
| 179 | controlled through /sys/devices/system/cpu. |
| 180 | |
| 181 | Say N if you want to disable CPU hotplug. |
| 182 | |
Max Filippov | e85e335 | 2012-12-03 15:01:43 +0400 | [diff] [blame] | 183 | config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX |
| 184 | bool "Initialize Xtensa MMU inside the Linux kernel code" |
| 185 | default y |
| 186 | help |
| 187 | Earlier version initialized the MMU in the exception vector |
| 188 | before jumping to _startup in head.S and had an advantage that |
| 189 | it was possible to place a software breakpoint at 'reset' and |
| 190 | then enter your normal kernel breakpoints once the MMU was mapped |
| 191 | to the kernel mappings (0XC0000000). |
| 192 | |
| 193 | This unfortunately doesn't work for U-Boot and likley also wont |
| 194 | work for using KEXEC to have a hot kernel ready for doing a |
| 195 | KDUMP. |
| 196 | |
| 197 | So now the MMU is initialized in head.S but it's necessary to |
| 198 | use hardware breakpoints (gdb 'hbreak' cmd) to break at _startup. |
| 199 | xt-gdb can't place a Software Breakpoint in the 0XD region prior |
| 200 | to mapping the MMU and after mapping even if the area of low memory |
| 201 | was mapped gdb wouldn't remove the breakpoint on hitting it as the |
| 202 | PC wouldn't match. Since Hardware Breakpoints are recommended for |
| 203 | Linux configurations it seems reasonable to just assume they exist |
| 204 | and leave this older mechanism for unfortunate souls that choose |
| 205 | not to follow Tensilica's recommendation. |
| 206 | |
| 207 | Selecting this will cause U-Boot to set the KERNEL Load and Entry |
| 208 | address at 0x00003000 instead of the mapped std of 0xD0003000. |
| 209 | |
| 210 | If in doubt, say Y. |
| 211 | |
Max Filippov | 6555910 | 2014-02-04 02:17:09 +0400 | [diff] [blame] | 212 | config HIGHMEM |
| 213 | bool "High Memory Support" |
Max Filippov | 8a9de05 | 2014-06-16 08:15:43 +0400 | [diff] [blame] | 214 | depends on MMU |
Max Filippov | 6555910 | 2014-02-04 02:17:09 +0400 | [diff] [blame] | 215 | help |
| 216 | Linux can use the full amount of RAM in the system by |
| 217 | default. However, the default MMUv2 setup only maps the |
| 218 | lowermost 128 MB of memory linearly to the areas starting |
| 219 | at 0xd0000000 (cached) and 0xd8000000 (uncached). |
| 220 | When there are more than 128 MB memory in the system not |
| 221 | all of it can be "permanently mapped" by the kernel. |
| 222 | The physical memory that's not permanently mapped is called |
| 223 | "high memory". |
| 224 | |
| 225 | If you are compiling a kernel which will never run on a |
| 226 | machine with more than 128 MB total physical RAM, answer |
| 227 | N here. |
| 228 | |
| 229 | If unsure, say Y. |
| 230 | |
Max Filippov | 9184289 | 2014-08-07 03:32:30 +0400 | [diff] [blame] | 231 | config FAST_SYSCALL_XTENSA |
| 232 | bool "Enable fast atomic syscalls" |
| 233 | default n |
| 234 | help |
| 235 | fast_syscall_xtensa is a syscall that can make atomic operations |
| 236 | on UP kernel when processor has no s32c1i support. |
| 237 | |
| 238 | This syscall is deprecated. It may have issues when called with |
| 239 | invalid arguments. It is provided only for backwards compatibility. |
| 240 | Only enable it if your userspace software requires it. |
| 241 | |
| 242 | If unsure, say N. |
| 243 | |
| 244 | config FAST_SYSCALL_SPILL_REGISTERS |
| 245 | bool "Enable spill registers syscall" |
| 246 | default n |
| 247 | help |
| 248 | fast_syscall_spill_registers is a syscall that spills all active |
| 249 | register windows of a calling userspace task onto its stack. |
| 250 | |
| 251 | This syscall is deprecated. It may have issues when called with |
| 252 | invalid arguments. It is provided only for backwards compatibility. |
| 253 | Only enable it if your userspace software requires it. |
| 254 | |
| 255 | If unsure, say N. |
| 256 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 257 | endmenu |
| 258 | |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 259 | config XTENSA_CALIBRATE_CCOUNT |
| 260 | def_bool n |
| 261 | help |
| 262 | On some platforms (XT2000, for example), the CPU clock rate can |
| 263 | vary. The frequency can be determined, however, by measuring |
| 264 | against a well known, fixed frequency, such as an UART oscillator. |
| 265 | |
| 266 | config SERIAL_CONSOLE |
| 267 | def_bool n |
| 268 | |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 269 | menu "Bus options" |
| 270 | |
| 271 | config PCI |
| 272 | bool "PCI support" |
| 273 | default y |
| 274 | help |
| 275 | Find out whether you have a PCI motherboard. PCI is the name of a |
| 276 | bus system, i.e. the way the CPU talks to the other stuff inside |
| 277 | your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or |
| 278 | VESA. If you have PCI, say Y, otherwise N. |
| 279 | |
| 280 | source "drivers/pci/Kconfig" |
| 281 | |
Chris Zankel | 35e71f9 | 2009-04-16 00:25:39 -0700 | [diff] [blame] | 282 | endmenu |
| 283 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 284 | menu "Platform options" |
| 285 | |
| 286 | choice |
| 287 | prompt "Xtensa System Type" |
| 288 | default XTENSA_PLATFORM_ISS |
| 289 | |
| 290 | config XTENSA_PLATFORM_ISS |
| 291 | bool "ISS" |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 292 | select XTENSA_CALIBRATE_CCOUNT |
| 293 | select SERIAL_CONSOLE |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 294 | help |
| 295 | ISS is an acronym for Tensilica's Instruction Set Simulator. |
| 296 | |
| 297 | config XTENSA_PLATFORM_XT2000 |
| 298 | bool "XT2000" |
Max Filippov | 4964527 | 2014-06-16 08:25:43 +0400 | [diff] [blame] | 299 | select HAVE_IDE |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 300 | help |
| 301 | XT2000 is the name of Tensilica's feature-rich emulation platform. |
| 302 | This hardware is capable of running a full Linux distribution. |
| 303 | |
Max Filippov | 0d456ba | 2012-11-05 07:37:14 +0400 | [diff] [blame] | 304 | config XTENSA_PLATFORM_XTFPGA |
| 305 | bool "XTFPGA" |
Max Filippov | 61e47e9 | 2014-10-04 04:44:04 +0400 | [diff] [blame] | 306 | select ETHOC if ETHERNET |
Max Filippov | 3932b9c | 2014-10-04 04:45:39 +0400 | [diff] [blame] | 307 | select PLATFORM_WANT_DEFAULT_MEM |
Max Filippov | 0d456ba | 2012-11-05 07:37:14 +0400 | [diff] [blame] | 308 | select SERIAL_CONSOLE |
Max Filippov | 0d456ba | 2012-11-05 07:37:14 +0400 | [diff] [blame] | 309 | select XTENSA_CALIBRATE_CCOUNT |
| 310 | help |
| 311 | XTFPGA is the name of Tensilica board family (LX60, LX110, LX200, ML605). |
| 312 | This hardware is capable of running a full Linux distribution. |
| 313 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 314 | endchoice |
| 315 | |
| 316 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 317 | config XTENSA_CPU_CLOCK |
| 318 | int "CPU clock rate [MHz]" |
| 319 | depends on !XTENSA_CALIBRATE_CCOUNT |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 320 | default 16 |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 321 | |
| 322 | config GENERIC_CALIBRATE_DELAY |
| 323 | bool "Auto calibration of the BogoMIPS value" |
Johannes Weiner | 35f9cd0 | 2009-03-04 16:21:28 +0100 | [diff] [blame] | 324 | help |
Chris Zankel | 82300bf | 2005-06-30 02:58:58 -0700 | [diff] [blame] | 325 | The BogoMIPS value can easily be derived from the CPU frequency. |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 326 | |
| 327 | config CMDLINE_BOOL |
| 328 | bool "Default bootloader kernel arguments" |
| 329 | |
| 330 | config CMDLINE |
| 331 | string "Initial kernel command string" |
| 332 | depends on CMDLINE_BOOL |
| 333 | default "console=ttyS0,38400 root=/dev/ram" |
| 334 | help |
| 335 | On some architectures (EBSA110 and CATS), there is currently no way |
| 336 | for the boot loader to pass arguments to the kernel. For these |
| 337 | architectures, you should supply some command-line options at build |
| 338 | time by entering them here. As a minimum, you should specify the |
| 339 | memory size and the root device (e.g., mem=64M root=/dev/nfs). |
| 340 | |
Max Filippov | da844a8 | 2012-11-04 00:30:13 +0400 | [diff] [blame] | 341 | config USE_OF |
| 342 | bool "Flattened Device Tree support" |
| 343 | select OF |
| 344 | select OF_EARLY_FLATTREE |
| 345 | help |
| 346 | Include support for flattened device tree machine descriptions. |
| 347 | |
| 348 | config BUILTIN_DTB |
| 349 | string "DTB to build into the kernel image" |
| 350 | depends on OF |
| 351 | |
Victor Prupis | b6c7e87 | 2008-05-19 14:50:38 -0700 | [diff] [blame] | 352 | config BLK_DEV_SIMDISK |
| 353 | tristate "Host file-based simulated block device support" |
| 354 | default n |
Max Filippov | 7a0684c | 2014-08-27 14:54:48 +0400 | [diff] [blame] | 355 | depends on XTENSA_PLATFORM_ISS && BLOCK |
Victor Prupis | b6c7e87 | 2008-05-19 14:50:38 -0700 | [diff] [blame] | 356 | help |
| 357 | Create block devices that map to files in the host file system. |
| 358 | Device binding to host file may be changed at runtime via proc |
| 359 | interface provided the device is not in use. |
| 360 | |
| 361 | config BLK_DEV_SIMDISK_COUNT |
| 362 | int "Number of host file-based simulated block devices" |
| 363 | range 1 10 |
| 364 | depends on BLK_DEV_SIMDISK |
| 365 | default 2 |
| 366 | help |
| 367 | This is the default minimal number of created block devices. |
| 368 | Kernel/module parameter 'simdisk_count' may be used to change this |
| 369 | value at runtime. More file names (but no more than 10) may be |
| 370 | specified as parameters, simdisk_count grows accordingly. |
| 371 | |
| 372 | config SIMDISK0_FILENAME |
| 373 | string "Host filename for the first simulated device" |
| 374 | depends on BLK_DEV_SIMDISK = y |
| 375 | default "" |
| 376 | help |
| 377 | Attach a first simdisk to a host file. Conventionally, this file |
| 378 | contains a root file system. |
| 379 | |
| 380 | config SIMDISK1_FILENAME |
| 381 | string "Host filename for the second simulated device" |
| 382 | depends on BLK_DEV_SIMDISK = y && BLK_DEV_SIMDISK_COUNT != 1 |
| 383 | default "" |
| 384 | help |
| 385 | Another simulated disk in a host file for a buildroot-independent |
| 386 | storage. |
| 387 | |
Chris Zankel | 82300bf | 2005-06-30 02:58:58 -0700 | [diff] [blame] | 388 | source "mm/Kconfig" |
| 389 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 390 | source "drivers/pcmcia/Kconfig" |
| 391 | |
| 392 | source "drivers/pci/hotplug/Kconfig" |
| 393 | |
Max Filippov | 3932b9c | 2014-10-04 04:45:39 +0400 | [diff] [blame] | 394 | config PLATFORM_WANT_DEFAULT_MEM |
| 395 | def_bool n |
| 396 | |
| 397 | config DEFAULT_MEM_START |
| 398 | hex "Physical address of the default memory area start" |
| 399 | depends on PLATFORM_WANT_DEFAULT_MEM |
| 400 | default 0x00000000 if MMU |
| 401 | default 0x40000000 if !MMU |
| 402 | help |
| 403 | This is a fallback start address of the default memory area, it is |
| 404 | used when no physical memory size is passed through DTB or through |
| 405 | boot parameter from bootloader. |
| 406 | |
| 407 | In noMMU configuration the following parameters are derived from it: |
| 408 | - kernel load address; |
| 409 | - kernel entry point address; |
| 410 | - relocatable vectors base address; |
| 411 | - uBoot load address; |
| 412 | - TASK_SIZE. |
| 413 | |
| 414 | If unsure, leave the default value here. |
| 415 | |
| 416 | config DEFAULT_MEM_SIZE |
| 417 | hex "Maximal size of the default memory area" |
| 418 | depends on PLATFORM_WANT_DEFAULT_MEM |
| 419 | default 0x04000000 |
| 420 | help |
| 421 | This is a fallback size of the default memory area, it is used when |
| 422 | no physical memory size is passed through DTB or through boot |
| 423 | parameter from bootloader. |
| 424 | |
| 425 | It's also used for TASK_SIZE calculation in noMMU configuration. |
| 426 | |
| 427 | If unsure, leave the default value here. |
| 428 | |
Max Filippov | 4949009 | 2015-02-27 06:28:00 +0300 | [diff] [blame] | 429 | config XTFPGA_LCD |
| 430 | bool "Enable XTFPGA LCD driver" |
| 431 | depends on XTENSA_PLATFORM_XTFPGA |
| 432 | default n |
| 433 | help |
| 434 | There's a 2x16 LCD on most of XTFPGA boards, kernel may output |
| 435 | progress messages there during bootup/shutdown. It may be useful |
| 436 | during board bringup. |
| 437 | |
| 438 | If unsure, say N. |
| 439 | |
| 440 | config XTFPGA_LCD_BASE_ADDR |
| 441 | hex "XTFPGA LCD base address" |
| 442 | depends on XTFPGA_LCD |
| 443 | default "0x0d0c0000" |
| 444 | help |
| 445 | Base address of the LCD controller inside KIO region. |
| 446 | Different boards from XTFPGA family have LCD controller at different |
| 447 | addresses. Please consult prototyping user guide for your board for |
| 448 | the correct address. Wrong address here may lead to hardware lockup. |
| 449 | |
| 450 | config XTFPGA_LCD_8BIT_ACCESS |
| 451 | bool "Use 8-bit access to XTFPGA LCD" |
| 452 | depends on XTFPGA_LCD |
| 453 | default n |
| 454 | help |
| 455 | LCD may be connected with 4- or 8-bit interface, 8-bit access may |
| 456 | only be used with 8-bit interface. Please consult prototyping user |
| 457 | guide for your board for the correct interface width. |
| 458 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 459 | endmenu |
| 460 | |
Matt LaPlante | cab0089 | 2006-10-03 22:36:44 +0200 | [diff] [blame] | 461 | menu "Executable file formats" |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 462 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 463 | source "fs/Kconfig.binfmt" |
| 464 | |
| 465 | endmenu |
| 466 | |
Max Filippov | e00d8b2 | 2014-10-29 01:42:01 +0300 | [diff] [blame] | 467 | menu "Power management options" |
| 468 | |
| 469 | source "kernel/power/Kconfig" |
| 470 | |
| 471 | endmenu |
| 472 | |
Sam Ravnborg | d5950b4 | 2005-07-11 21:03:49 -0700 | [diff] [blame] | 473 | source "net/Kconfig" |
| 474 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 475 | source "drivers/Kconfig" |
| 476 | |
| 477 | source "fs/Kconfig" |
| 478 | |
Chris Zankel | 8e1a6dd | 2005-06-23 22:01:10 -0700 | [diff] [blame] | 479 | source "arch/xtensa/Kconfig.debug" |
| 480 | |
| 481 | source "security/Kconfig" |
| 482 | |
| 483 | source "crypto/Kconfig" |
| 484 | |
| 485 | source "lib/Kconfig" |
| 486 | |
| 487 | |