1menu "Boot timing" 2 3config BOOTSTAGE 4 bool "Boot timing and reporting" 5 help 6 Enable recording of boot time while booting. To use it, insert 7 calls to bootstage_mark() with a suitable BOOTSTAGE_ID from 8 bootstage.h. Only a single entry is recorded for each ID. You can 9 give the entry a name with bootstage_mark_name(). You can also 10 record elapsed time in a particular stage using bootstage_start() 11 before starting and bootstage_accum() when finished. Bootstage will 12 add up all the accumulated time and report it. 13 14 Normally, IDs are defined in bootstage.h but a small number of 15 additional 'user' IDs can be used by passing BOOTSTAGE_ID_ALLOC 16 as the ID. 17 18 Calls to show_boot_progress() will also result in log entries but 19 these will not have names. 20 21config BOOTSTAGE_REPORT 22 bool "Display a detailed boot timing report before booting the OS" 23 depends on BOOTSTAGE 24 help 25 Enable output of a boot time report just before the OS is booted. 26 This shows how long it took U-Boot to go through each stage of the 27 boot process. The report looks something like this: 28 29 Timer summary in microseconds: 30 Mark Elapsed Stage 31 0 0 reset 32 3,575,678 3,575,678 board_init_f start 33 3,575,695 17 arch_cpu_init A9 34 3,575,777 82 arch_cpu_init done 35 3,659,598 83,821 board_init_r start 36 3,910,375 250,777 main_loop 37 29,916,167 26,005,792 bootm_start 38 30,361,327 445,160 start_kernel 39 40config BOOTSTAGE_USER_COUNT 41 hex "Number of boot ID numbers available for user use" 42 default 20 43 help 44 This is the number of available user bootstage records. 45 Each time you call bootstage_mark(BOOTSTAGE_ID_ALLOC, ...) 46 a new ID will be allocated from this stash. If you exceed 47 the limit, recording will stop. 48 49config BOOTSTAGE_FDT 50 bool "Store boot timing information in the OS device tree" 51 depends on BOOTSTAGE 52 help 53 Stash the bootstage information in the FDT. A root 'bootstage' 54 node is created with each bootstage id as a child. Each child 55 has a 'name' property and either 'mark' containing the 56 mark time in microseconds, or 'accum' containing the 57 accumulated time for that bootstage id in microseconds. 58 For example: 59 60 bootstage { 61 154 { 62 name = "board_init_f"; 63 mark = <3575678>; 64 }; 65 170 { 66 name = "lcd"; 67 accum = <33482>; 68 }; 69 }; 70 71 Code in the Linux kernel can find this in /proc/devicetree. 72 73config BOOTSTAGE_STASH 74 bool "Stash the boot timing information in memory before booting OS" 75 depends on BOOTSTAGE 76 help 77 Some OSes do not support device tree. Bootstage can instead write 78 the boot timing information in a binary format at a given address. 79 This happens through a call to bootstage_stash(), typically in 80 the CPU's cleanup_before_linux() function. You can use the 81 'bootstage stash' and 'bootstage unstash' commands to do this on 82 the command line. 83 84config BOOTSTAGE_STASH_ADDR 85 hex "Address to stash boot timing information" 86 default 0 87 help 88 Provide an address which will not be overwritten by the OS when it 89 starts, so that it can read this information when ready. 90 91config BOOTSTAGE_STASH_SIZE 92 hex "Size of boot timing stash region" 93 default 0x1000 94 help 95 This should be large enough to hold the bootstage stash. A value of 96 4096 (4KiB) is normally plenty. 97 98endmenu 99 100menu "Boot media" 101 102config NOR_BOOT 103 bool "Support for booting from NOR flash" 104 depends on NOR 105 help 106 Enabling this will make a U-Boot binary that is capable of being 107 booted via NOR. In this case we will enable certain pinmux early 108 as the ROM only partially sets up pinmux. We also default to using 109 NOR for environment. 110 111config NAND_BOOT 112 bool "Support for booting from NAND flash" 113 default n 114 help 115 Enabling this will make a U-Boot binary that is capable of being 116 booted via NAND flash. This is not a must, some SoCs need this, 117 some not. 118 119config ONENAND_BOOT 120 bool "Support for booting from ONENAND" 121 default n 122 help 123 Enabling this will make a U-Boot binary that is capable of being 124 booted via ONENAND. This is not a must, some SoCs need this, 125 some not. 126 127config QSPI_BOOT 128 bool "Support for booting from QSPI flash" 129 default n 130 help 131 Enabling this will make a U-Boot binary that is capable of being 132 booted via QSPI flash. This is not a must, some SoCs need this, 133 some not. 134 135config SATA_BOOT 136 bool "Support for booting from SATA" 137 default n 138 help 139 Enabling this will make a U-Boot binary that is capable of being 140 booted via SATA. This is not a must, some SoCs need this, 141 some not. 142 143config SD_BOOT 144 bool "Support for booting from SD/EMMC" 145 default n 146 help 147 Enabling this will make a U-Boot binary that is capable of being 148 booted via SD/EMMC. This is not a must, some SoCs need this, 149 some not. 150 151config SPI_BOOT 152 bool "Support for booting from SPI flash" 153 default n 154 help 155 Enabling this will make a U-Boot binary that is capable of being 156 booted via SPI flash. This is not a must, some SoCs need this, 157 some not. 158 159endmenu 160 161menu "Environment" 162 163if ARCH_SUNXI 164 165choice 166 prompt "Environment Device" 167 default ENV_IS_IN_MMC if ARCH_SUNXI 168 169config ENV_IS_IN_MMC 170 bool "Environment in an MMC device" 171 depends on CMD_MMC 172 help 173 Define this if you have an MMC device which you want to use for the 174 environment. 175 176config ENV_IS_IN_NAND 177 bool "Environment in a NAND device" 178 depends on CMD_NAND 179 help 180 Define this if you have a NAND device which you want to use for the 181 environment. 182 183config ENV_IS_IN_UBI 184 bool "Environment in a UBI volume" 185 depends on CMD_UBI 186 depends on CMD_MTDPARTS 187 help 188 Define this if you have a UBI volume which you want to use for the 189 environment. 190 191config ENV_IS_NOWHERE 192 bool "Environment is not stored" 193 help 194 Define this if you don't want to or can't have an environment stored 195 on a storage medium 196 197endchoice 198 199config ENV_OFFSET 200 hex "Environment Offset" 201 depends on !ENV_IS_IN_UBI 202 depends on !ENV_IS_NOWHERE 203 default 0x88000 if ARCH_SUNXI 204 help 205 Offset from the start of the device (or partition) 206 207config ENV_SIZE 208 hex "Environment Size" 209 depends on !ENV_IS_NOWHERE 210 default 0x20000 if ARCH_SUNXI 211 help 212 Size of the environment storage area 213 214config ENV_UBI_PART 215 string "UBI partition name" 216 depends on ENV_IS_IN_UBI 217 help 218 MTD partition containing the UBI device 219 220config ENV_UBI_VOLUME 221 string "UBI volume name" 222 depends on ENV_IS_IN_UBI 223 help 224 Name of the volume that you want to store the environment in. 225 226endif 227 228endmenu 229 230config BOOTDELAY 231 int "delay in seconds before automatically booting" 232 default 2 233 depends on AUTOBOOT 234 help 235 Delay before automatically running bootcmd; 236 set to 0 to autoboot with no delay, but you can stop it by key input. 237 set to -1 to disable autoboot. 238 set to -2 to autoboot with no delay and not check for abort 239 240 See doc/README.autoboot for details. 241 242menu "Console" 243 244config MENU 245 bool 246 help 247 This is the library functionality to provide a text-based menu of 248 choices for the user to make choices with. 249 250config CONSOLE_RECORD 251 bool "Console recording" 252 help 253 This provides a way to record console output (and provide console 254 input) through circular buffers. This is mostly useful for testing. 255 Console output is recorded even when the console is silent. 256 To enable console recording, call console_record_reset_enable() 257 from your code. 258 259config CONSOLE_RECORD_OUT_SIZE 260 hex "Output buffer size" 261 depends on CONSOLE_RECORD 262 default 0x400 if CONSOLE_RECORD 263 help 264 Set the size of the console output buffer. When this fills up, no 265 more data will be recorded until some is removed. The buffer is 266 allocated immediately after the malloc() region is ready. 267 268config CONSOLE_RECORD_IN_SIZE 269 hex "Input buffer size" 270 depends on CONSOLE_RECORD 271 default 0x100 if CONSOLE_RECORD 272 help 273 Set the size of the console input buffer. When this contains data, 274 tstc() and getc() will use this in preference to real device input. 275 The buffer is allocated immediately after the malloc() region is 276 ready. 277 278config IDENT_STRING 279 string "Board specific string to be added to uboot version string" 280 help 281 This options adds the board specific name to u-boot version. 282 283config SILENT_CONSOLE 284 bool "Support a silent console" 285 help 286 This option allows the console to be silenced, meaning that no 287 output will appear on the console devices. This is controlled by 288 setting the environment vaariable 'silent' to a non-empty value. 289 Note this also silences the console when booting Linux. 290 291 When the console is set up, the variable is checked, and the 292 GD_FLG_SILENT flag is set. Changing the environment variable later 293 will update the flag. 294 295config SILENT_U_BOOT_ONLY 296 bool "Only silence the U-Boot console" 297 depends on SILENT_CONSOLE 298 help 299 Normally when the U-Boot console is silenced, Linux's console is 300 also silenced (assuming the board boots into Linux). This option 301 allows the linux console to operate normally, even if U-Boot's 302 is silenced. 303 304config SILENT_CONSOLE_UPDATE_ON_SET 305 bool "Changes to the 'silent' environment variable update immediately" 306 depends on SILENT_CONSOLE 307 default y if SILENT_CONSOLE 308 help 309 When the 'silent' environment variable is changed, update the 310 console silence flag immediately. This allows 'setenv' to be used 311 to silence or un-silence the console. 312 313 The effect is that any change to the variable will affect the 314 GD_FLG_SILENT flag. 315 316config SILENT_CONSOLE_UPDATE_ON_RELOC 317 bool "Allow flags to take effect on relocation" 318 depends on SILENT_CONSOLE 319 help 320 In some cases the environment is not available until relocation 321 (e.g. NAND). This option makes the value of the 'silent' 322 environment variable take effect at relocation. 323 324config PRE_CONSOLE_BUFFER 325 bool "Buffer characters before the console is available" 326 help 327 Prior to the console being initialised (i.e. serial UART 328 initialised etc) all console output is silently discarded. 329 Defining CONFIG_PRE_CONSOLE_BUFFER will cause U-Boot to 330 buffer any console messages prior to the console being 331 initialised to a buffer. The buffer is a circular buffer, so 332 if it overflows, earlier output is discarded. 333 334 Note that this is not currently supported in SPL. It would be 335 useful to be able to share the pre-console buffer with SPL. 336 337config PRE_CON_BUF_SZ 338 int "Sets the size of the pre-console buffer" 339 depends on PRE_CONSOLE_BUFFER 340 default 4096 341 help 342 The size of the pre-console buffer affects how much console output 343 can be held before it overflows and starts discarding earlier 344 output. Normally there is very little output at this early stage, 345 unless debugging is enabled, so allow enough for ~10 lines of 346 text. 347 348 This is a useful feature if you are using a video console and 349 want to see the full boot output on the console. Without this 350 option only the post-relocation output will be displayed. 351 352config PRE_CON_BUF_ADDR 353 hex "Address of the pre-console buffer" 354 depends on PRE_CONSOLE_BUFFER 355 default 0x2f000000 if ARCH_SUNXI && MACH_SUN9I 356 default 0x4f000000 if ARCH_SUNXI && !MACH_SUN9I 357 help 358 This sets the start address of the pre-console buffer. This must 359 be in available memory and is accessed before relocation and 360 possibly before DRAM is set up. Therefore choose an address 361 carefully. 362 363 We should consider removing this option and allocating the memory 364 in board_init_f_init_reserve() instead. 365 366config CONSOLE_MUX 367 bool "Enable console multiplexing" 368 default y if DM_VIDEO || VIDEO || LCD 369 help 370 This allows multiple devices to be used for each console 'file'. 371 For example, stdout can be set to go to serial and video. 372 Similarly, stdin can be set to come from serial and keyboard. 373 Input can be provided from either source. Console multiplexing 374 adds a small amount of size to U-Boot. Changes to the environment 375 variables stdout, stdin and stderr will take effect immediately. 376 377config SYS_CONSOLE_IS_IN_ENV 378 bool "Select console devices from the environment" 379 default y if CONSOLE_MUX 380 help 381 This allows multiple input/output devices to be set at boot time. 382 For example, if stdout is set to "serial,video" then output will 383 be sent to both the serial and video devices on boot. The 384 environment variables can be updated after boot to change the 385 input/output devices. 386 387config SYS_CONSOLE_OVERWRITE_ROUTINE 388 bool "Allow board control over console overwriting" 389 help 390 If this is enabled, and the board-specific function 391 overwrite_console() returns 1, the stdin, stderr and stdout are 392 switched to the serial port, else the settings in the environment 393 are used. If this is not enabled, the console will not be switched 394 to serial. 395 396config SYS_CONSOLE_ENV_OVERWRITE 397 bool "Update environment variables during console init" 398 help 399 The console environment variables (stdout, stdin, stderr) can be 400 used to determine the correct console devices on start-up. This 401 option writes the console devices to these variables on console 402 start-up (after relocation). This causes the environment to be 403 updated to match the console devices actually chosen. 404 405config SYS_CONSOLE_INFO_QUIET 406 bool "Don't display the console devices on boot" 407 help 408 Normally U-Boot displays the current settings for stdout, stdin 409 and stderr on boot when the post-relocation console is set up. 410 Enable this option to supress this output. It can be obtained by 411 calling stdio_print_current_devices() from board code. 412 413config SYS_STDIO_DEREGISTER 414 bool "Allow deregistering stdio devices" 415 default y if USB_KEYBOARD 416 help 417 Generally there is no need to deregister stdio devices since they 418 are never deactivated. But if a stdio device is used which can be 419 removed (for example a USB keyboard) then this option can be 420 enabled to ensure this is handled correctly. 421 422endmenu 423 424config DEFAULT_FDT_FILE 425 string "Default fdt file" 426 help 427 This option is used to set the default fdt file to boot OS. 428 429config VERSION_VARIABLE 430 bool "add U-Boot environment variable vers" 431 default n 432 help 433 If this variable is defined, an environment variable 434 named "ver" is created by U-Boot showing the U-Boot 435 version as printed by the "version" command. 436 Any change to this variable will be reverted at the 437 next reset. 438 439config BOARD_LATE_INIT 440 bool 441 help 442 Sometimes board require some initialization code that might 443 require once the actual init done, example saving board specific env, 444 boot-modes etc. which eventually done at late. 445 446 So this config enable the late init code with the help of board_late_init 447 function which should defined on respective boards. 448 449config DISPLAY_CPUINFO 450 bool "Display information about the CPU during start up" 451 default y if ARM || NIOS2 || X86 || XTENSA || MPC5xxx 452 help 453 Display information about the CPU that U-Boot is running on 454 when U-Boot starts up. The function print_cpuinfo() is called 455 to do this. 456 457config DISPLAY_BOARDINFO 458 bool "Display information about the board during start up" 459 default y if ARM || M68K || MIPS || PPC || XTENSA 460 help 461 Display information about the board that U-Boot is running on 462 when U-Boot starts up. The board function checkboard() is called 463 to do this. 464 465menu "Start-up hooks" 466 467config ARCH_EARLY_INIT_R 468 bool "Call arch-specific init soon after relocation" 469 default y if X86 470 help 471 With this option U-Boot will call arch_early_init_r() soon after 472 relocation. Driver model is running by this point, and the cache 473 is on. Note that board_early_init_r() is called first, if 474 enabled. This can be used to set up architecture-specific devices. 475 476config ARCH_MISC_INIT 477 bool "Call arch-specific init after relocation, when console is ready" 478 help 479 With this option U-Boot will call arch_misc_init() after 480 relocation to allow miscellaneous arch-dependent initialisation 481 to be performed. This function should be defined by the board 482 and will be called after the console is set up, after relocaiton. 483 484config BOARD_EARLY_INIT_F 485 bool "Call board-specific init before relocation" 486 default y if X86 487 help 488 Some boards need to perform initialisation as soon as possible 489 after boot. With this option, U-Boot calls board_early_init_f() 490 after driver model is ready in the pre-relocation init sequence. 491 Note that the normal serial console is not yet set up, but the 492 debug UART will be available if enabled. 493 494endmenu 495 496source "common/spl/Kconfig" 497