Thomas Gleixner | ec8f24b | 2019-05-19 13:07:45 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 2 | config MICROBLAZE |
| 3 | def_bool y |
Yury Norov | 942fa98 | 2018-05-16 11:18:49 +0300 | [diff] [blame] | 4 | select ARCH_32BIT_OFF_T |
Christoph Hellwig | 17c46a6 | 2018-07-31 13:39:29 +0200 | [diff] [blame] | 5 | select ARCH_NO_SWAP |
Christoph Hellwig | aef0f78 | 2019-06-13 09:08:57 +0200 | [diff] [blame] | 6 | select ARCH_HAS_BINFMT_FLAT if !MMU |
Christoph Hellwig | d3b9f65 | 2019-08-14 16:03:47 +0200 | [diff] [blame] | 7 | select ARCH_HAS_DMA_PREP_COHERENT |
Riku Voipio | 957e3fa | 2014-12-12 16:57:44 -0800 | [diff] [blame] | 8 | select ARCH_HAS_GCOV_PROFILE_ALL |
Christoph Hellwig | 5411ad2 | 2018-07-19 05:54:39 -0700 | [diff] [blame] | 9 | select ARCH_HAS_SYNC_DMA_FOR_CPU |
| 10 | select ARCH_HAS_SYNC_DMA_FOR_DEVICE |
Christoph Hellwig | fa7e224 | 2020-02-21 15:55:43 -0800 | [diff] [blame] | 11 | select ARCH_HAS_DMA_SET_UNCACHED if !MMU |
Mark Salter | 355f65a | 2013-10-07 22:12:28 -0400 | [diff] [blame] | 12 | select ARCH_MIGHT_HAVE_PC_PARPORT |
Will Deacon | c1d7e01 | 2012-07-30 14:42:46 -0700 | [diff] [blame] | 13 | select ARCH_WANT_IPC_PARSE_VERSION |
Shile Zhang | 1091670 | 2019-12-04 08:46:31 +0800 | [diff] [blame] | 14 | select BUILDTIME_TABLE_SORT |
Daniel Lezcano | bb0eb05 | 2017-05-26 19:34:11 +0200 | [diff] [blame] | 15 | select TIMER_OF |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 16 | select CLONE_BACKWARDS3 |
| 17 | select COMMON_CLK |
Christoph Hellwig | 04e3543 | 2019-08-14 16:03:48 +0200 | [diff] [blame] | 18 | select DMA_DIRECT_REMAP if MMU |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 19 | select GENERIC_ATOMIC64 |
| 20 | select GENERIC_CLOCKEVENTS |
| 21 | select GENERIC_CPU_DEVICES |
| 22 | select GENERIC_IDLE_POLL_SETUP |
Thomas Gleixner | b6e3162 | 2011-01-19 20:35:05 +0100 | [diff] [blame] | 23 | select GENERIC_IRQ_PROBE |
Thomas Gleixner | 9d61c18b | 2011-03-24 14:55:52 +0100 | [diff] [blame] | 24 | select GENERIC_IRQ_SHOW |
Michael S. Tsirkin | 1b34d16 | 2011-11-24 21:06:41 +0200 | [diff] [blame] | 25 | select GENERIC_PCI_IOMAP |
Michal Simek | 839396a | 2013-12-20 10:16:40 +0100 | [diff] [blame] | 26 | select GENERIC_SCHED_CLOCK |
George Spelvin | 7b13277 | 2016-05-25 11:06:09 -0400 | [diff] [blame] | 27 | select HAVE_ARCH_HASH |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 28 | select HAVE_ARCH_KGDB |
YiFei Zhu | 282a181 | 2020-09-24 07:44:16 -0500 | [diff] [blame] | 29 | select HAVE_ARCH_SECCOMP |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 30 | select HAVE_DEBUG_KMEMLEAK |
Michal Simek | 2602276 | 2020-01-14 10:05:24 +0100 | [diff] [blame] | 31 | select HAVE_DMA_CONTIGUOUS |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 32 | select HAVE_DYNAMIC_FTRACE |
| 33 | select HAVE_FTRACE_MCOUNT_RECORD |
| 34 | select HAVE_FUNCTION_GRAPH_TRACER |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 35 | select HAVE_FUNCTION_TRACER |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 36 | select HAVE_OPROFILE |
Christoph Hellwig | eb01d42 | 2018-11-15 20:05:32 +0100 | [diff] [blame] | 37 | select HAVE_PCI |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 38 | select IRQ_DOMAIN |
Zubair Lutfullah Kakakhel | 0547dc7 | 2016-11-14 12:13:45 +0000 | [diff] [blame] | 39 | select XILINX_INTC |
David Howells | 786d35d | 2012-09-28 14:31:03 +0930 | [diff] [blame] | 40 | select MODULES_USE_ELF_RELA |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 41 | select OF |
| 42 | select OF_EARLY_FLATTREE |
Christoph Hellwig | 2eac9c2 | 2018-11-15 20:05:33 +0100 | [diff] [blame] | 43 | select PCI_DOMAINS_GENERIC if PCI |
Christoph Hellwig | 20f1b79 | 2018-11-15 20:05:34 +0100 | [diff] [blame] | 44 | select PCI_SYSCALL if PCI |
Michal Simek | 2521338 | 2014-04-07 12:51:44 +0200 | [diff] [blame] | 45 | select TRACING_SUPPORT |
| 46 | select VIRT_TO_BUS |
Zhaoxiu Zeng | fff7fb0 | 2016-05-20 17:03:57 -0700 | [diff] [blame] | 47 | select CPU_NO_EFFICIENT_FFS |
Peter Zijlstra | 6137fed | 2018-09-04 17:04:07 +0200 | [diff] [blame] | 48 | select MMU_GATHER_NO_RANGE if MMU |
Michal Simek | 6bf8be7 | 2017-08-08 16:06:52 +0200 | [diff] [blame] | 49 | select SPARSE_IRQ |
Greg Kroah-Hartman | 964f595 | 2020-10-28 15:06:48 +0100 | [diff] [blame] | 50 | select SET_FS |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 51 | |
Babu Moger | 206d364 | 2017-09-08 16:14:25 -0700 | [diff] [blame] | 52 | # Endianness selection |
| 53 | choice |
| 54 | prompt "Endianness selection" |
Babu Moger | 428dbf1 | 2017-09-18 10:53:29 -0600 | [diff] [blame] | 55 | default CPU_LITTLE_ENDIAN |
Babu Moger | 206d364 | 2017-09-08 16:14:25 -0700 | [diff] [blame] | 56 | help |
| 57 | microblaze architectures can be configured for either little or |
| 58 | big endian formats. Be sure to select the appropriate mode. |
| 59 | |
| 60 | config CPU_BIG_ENDIAN |
| 61 | bool "Big endian" |
| 62 | |
| 63 | config CPU_LITTLE_ENDIAN |
| 64 | bool "Little endian" |
| 65 | |
| 66 | endchoice |
| 67 | |
Michal Simek | 4e2e412 | 2011-12-15 09:24:06 +0100 | [diff] [blame] | 68 | config ZONE_DMA |
| 69 | def_bool y |
| 70 | |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 71 | config ARCH_HAS_ILOG2_U32 |
| 72 | def_bool n |
| 73 | |
| 74 | config ARCH_HAS_ILOG2_U64 |
| 75 | def_bool n |
| 76 | |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 77 | config GENERIC_HWEIGHT |
| 78 | def_bool y |
| 79 | |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 80 | config GENERIC_CALIBRATE_DELAY |
| 81 | def_bool y |
| 82 | |
Remis Lima Baima | 14f8738 | 2009-06-18 19:55:32 +0200 | [diff] [blame] | 83 | config GENERIC_CSUM |
| 84 | def_bool y |
| 85 | |
Michal Simek | 24b45a1 | 2009-11-10 15:57:01 +0100 | [diff] [blame] | 86 | config STACKTRACE_SUPPORT |
| 87 | def_bool y |
| 88 | |
Michal Simek | bf2d809 | 2009-12-10 12:07:02 +0100 | [diff] [blame] | 89 | config LOCKDEP_SUPPORT |
| 90 | def_bool y |
| 91 | |
Michal Simek | c24cf71 | 2014-04-07 13:05:00 +0200 | [diff] [blame] | 92 | source "arch/microblaze/Kconfig.platform" |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 93 | |
| 94 | menu "Processor type and features" |
| 95 | |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 96 | source "kernel/Kconfig.hz" |
| 97 | |
| 98 | config MMU |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 99 | bool "MMU support" |
| 100 | default n |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 101 | |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 102 | comment "Boot options" |
| 103 | |
| 104 | config CMDLINE_BOOL |
| 105 | bool "Default bootloader kernel arguments" |
| 106 | |
| 107 | config CMDLINE |
| 108 | string "Default kernel command string" |
| 109 | depends on CMDLINE_BOOL |
| 110 | default "console=ttyUL0,115200" |
| 111 | help |
| 112 | On some architectures there is currently no way for the boot loader |
| 113 | to pass arguments to the kernel. For these architectures, you should |
| 114 | supply some command-line options at build time by entering them |
| 115 | here. |
| 116 | |
| 117 | config CMDLINE_FORCE |
| 118 | bool "Force default kernel command string" |
| 119 | depends on CMDLINE_BOOL |
| 120 | default n |
| 121 | help |
| 122 | Set this to have arguments from the default kernel command string |
| 123 | override those passed by the boot loader. |
| 124 | |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 125 | endmenu |
| 126 | |
Michal Simek | b408e2c | 2014-09-01 16:23:54 +0200 | [diff] [blame] | 127 | menu "Kernel features" |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 128 | |
Michal Simek | 4cbbbb4 | 2014-10-27 08:28:16 +0100 | [diff] [blame] | 129 | config NR_CPUS |
| 130 | int |
| 131 | default "1" |
| 132 | |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 133 | config ADVANCED_OPTIONS |
| 134 | bool "Prompt for advanced kernel configuration options" |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 135 | help |
| 136 | This option will enable prompting for a variety of advanced kernel |
| 137 | configuration options. These options can cause the kernel to not |
| 138 | work if they are set incorrectly, but can be used to optimize certain |
| 139 | aspects of kernel memory management. |
| 140 | |
| 141 | Unless you know what you are doing, say N here. |
| 142 | |
| 143 | comment "Default settings for advanced configuration options are used" |
| 144 | depends on !ADVANCED_OPTIONS |
| 145 | |
Michal Simek | 3a0d7a4 | 2010-02-22 12:16:08 +0100 | [diff] [blame] | 146 | config XILINX_UNCACHED_SHADOW |
| 147 | bool "Are you using uncached shadow for RAM ?" |
| 148 | depends on ADVANCED_OPTIONS && !MMU |
| 149 | default n |
| 150 | help |
| 151 | This is needed to be able to allocate uncachable memory regions. |
| 152 | The feature requires the design to define the RAM memory controller |
| 153 | window to be twice as large as the actual physical memory. |
| 154 | |
Michal Simek | 2f2f371 | 2011-12-15 15:02:37 +0100 | [diff] [blame] | 155 | config HIGHMEM |
| 156 | bool "High memory support" |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 157 | depends on MMU |
Michal Simek | 2f2f371 | 2011-12-15 15:02:37 +0100 | [diff] [blame] | 158 | help |
| 159 | The address space of Microblaze processors is only 4 Gigabytes large |
| 160 | and it has to accommodate user address space, kernel address |
| 161 | space as well as some memory mapped IO. That means that, if you |
| 162 | have a large amount of physical memory and/or IO, not all of the |
| 163 | memory can be "permanently mapped" by the kernel. The physical |
| 164 | memory that is not permanently mapped is called "high memory". |
| 165 | |
| 166 | If unsure, say n. |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 167 | |
| 168 | config LOWMEM_SIZE_BOOL |
| 169 | bool "Set maximum low memory" |
Michal Simek | b8a8405 | 2010-02-22 11:33:07 +0100 | [diff] [blame] | 170 | depends on ADVANCED_OPTIONS && MMU |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 171 | help |
| 172 | This option allows you to set the maximum amount of memory which |
| 173 | will be used as "low memory", that is, memory which the kernel can |
| 174 | access directly, without having to set up a kernel virtual mapping. |
| 175 | This can be useful in optimizing the layout of kernel virtual |
| 176 | memory. |
| 177 | |
| 178 | Say N here unless you know what you are doing. |
| 179 | |
| 180 | config LOWMEM_SIZE |
| 181 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 182 | default "0x30000000" |
| 183 | |
Michal Simek | 0b9b020 | 2010-11-08 12:37:40 +0100 | [diff] [blame] | 184 | config MANUAL_RESET_VECTOR |
| 185 | hex "Microblaze reset vector address setup" |
| 186 | default "0x0" |
| 187 | help |
| 188 | Set this option to have the kernel override the CPU Reset vector. |
| 189 | If zero, no change will be made to the MicroBlaze reset vector at |
| 190 | address 0x0. |
| 191 | If non-zero, a jump instruction to this address, will be written |
| 192 | to the reset vector at address 0x0. |
| 193 | If you are unsure, set it to default value 0x0. |
| 194 | |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 195 | config KERNEL_START_BOOL |
| 196 | bool "Set custom kernel base address" |
| 197 | depends on ADVANCED_OPTIONS |
| 198 | help |
| 199 | This option allows you to set the kernel virtual address at which |
| 200 | the kernel will map low memory (the kernel image will be linked at |
| 201 | this address). This can be useful in optimizing the virtual memory |
| 202 | layout of the system. |
| 203 | |
| 204 | Say N here unless you know what you are doing. |
| 205 | |
| 206 | config KERNEL_START |
| 207 | hex "Virtual address of kernel base" if KERNEL_START_BOOL |
| 208 | default "0xc0000000" if MMU |
| 209 | default KERNEL_BASE_ADDR if !MMU |
| 210 | |
| 211 | config TASK_SIZE_BOOL |
| 212 | bool "Set custom user task size" |
Michal Simek | b8a8405 | 2010-02-22 11:33:07 +0100 | [diff] [blame] | 213 | depends on ADVANCED_OPTIONS && MMU |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 214 | help |
| 215 | This option allows you to set the amount of virtual address space |
| 216 | allocated to user tasks. This can be useful in optimizing the |
| 217 | virtual memory layout of the system. |
| 218 | |
| 219 | Say N here unless you know what you are doing. |
| 220 | |
| 221 | config TASK_SIZE |
| 222 | hex "Size of user task space" if TASK_SIZE_BOOL |
Michal Simek | a116f6d | 2009-05-26 16:30:31 +0200 | [diff] [blame] | 223 | default "0x80000000" |
| 224 | |
Steven J. Magnani | ba9c4f8 | 2010-05-13 10:48:27 -0500 | [diff] [blame] | 225 | choice |
| 226 | prompt "Page size" |
| 227 | default MICROBLAZE_4K_PAGES |
| 228 | depends on ADVANCED_OPTIONS && !MMU |
| 229 | help |
| 230 | Select the kernel logical page size. Increasing the page size |
| 231 | will reduce software overhead at each page boundary, allow |
| 232 | hardware prefetch mechanisms to be more effective, and allow |
| 233 | larger dma transfers increasing IO efficiency and reducing |
| 234 | overhead. However the utilization of memory will increase. |
| 235 | For example, each cached file will using a multiple of the |
| 236 | page size to hold its contents and the difference between the |
| 237 | end of file and the end of page is wasted. |
| 238 | |
| 239 | If unsure, choose 4K_PAGES. |
| 240 | |
| 241 | config MICROBLAZE_4K_PAGES |
| 242 | bool "4k page size" |
| 243 | |
Steven J. Magnani | ba9c4f8 | 2010-05-13 10:48:27 -0500 | [diff] [blame] | 244 | config MICROBLAZE_16K_PAGES |
| 245 | bool "16k page size" |
| 246 | |
Michal Simek | 6e80cff | 2012-08-01 10:29:28 +0200 | [diff] [blame] | 247 | config MICROBLAZE_64K_PAGES |
| 248 | bool "64k page size" |
Steven J. Magnani | ba9c4f8 | 2010-05-13 10:48:27 -0500 | [diff] [blame] | 249 | |
| 250 | endchoice |
| 251 | |
Michal Simek | 575ca28 | 2009-03-27 14:25:50 +0100 | [diff] [blame] | 252 | endmenu |
| 253 | |
Michal Simek | a6475c1 | 2010-01-18 15:27:10 +0100 | [diff] [blame] | 254 | menu "Bus Options" |
| 255 | |
Michal Simek | 733cc21 | 2010-01-18 15:27:11 +0100 | [diff] [blame] | 256 | config PCI_XILINX |
| 257 | bool "Xilinx PCI host bridge support" |
| 258 | depends on PCI |
| 259 | |
Michal Simek | a6475c1 | 2010-01-18 15:27:10 +0100 | [diff] [blame] | 260 | endmenu |