6 This is the library functionality to provide a text-based menu of
7 choices for the user to make choices with.
10 bool "Console recording"
12 This provides a way to record console output (and provide console
13 input) through circular buffers. This is mostly useful for testing.
14 Console output is recorded even when the console is silent.
15 To enable console recording, call console_record_reset_enable()
18 config CONSOLE_RECORD_INIT_F
19 bool "Enable console recording during pre-relocation init"
20 depends on CONSOLE_RECORD && SYS_MALLOC_F
23 This option enables console recording during pre-relocation init.
24 CONFIG_SYS_MALLOC_F must be enabled to use this feature.
26 config CONSOLE_RECORD_OUT_SIZE
27 hex "Output buffer size"
28 depends on CONSOLE_RECORD
29 default 0x400 if CONSOLE_RECORD
31 Set the size of the console output buffer. When this fills up, no
32 more data will be recorded until some is removed. The buffer is
33 allocated immediately after the malloc() region is ready.
35 config CONSOLE_RECORD_OUT_SIZE_F
36 hex "Output buffer size before relocation"
37 depends on CONSOLE_RECORD
38 default 0x400 if CONSOLE_RECORD
40 Set the size of the console output buffer before relocation. When
41 this fills up, no more data will be recorded until some is removed.
42 The buffer is allocated immediately after the early malloc() region is
45 config CONSOLE_RECORD_IN_SIZE
46 hex "Input buffer size"
47 depends on CONSOLE_RECORD
48 default 0x100 if CONSOLE_RECORD
50 Set the size of the console input buffer. When this contains data,
51 tstc() and getc() will use this in preference to real device input.
52 The buffer is allocated immediately after the malloc() region is
55 config DISABLE_CONSOLE
56 bool "Add functionality to disable console completely"
58 Disable console (in & out).
61 string "Board specific string to be added to uboot version string"
63 This options adds the board specific name to u-boot version.
70 All Messages with a loglevel smaller than the console loglevel will
71 be compiled in. The loglevels are defined as follows:
82 9 - debug hardware I/O
95 int "loglevel for VPL"
99 All Messages with a loglevel smaller than the console loglevel will
100 be compiled in to VPL. See LOGLEVEL for a list of available log
101 levels. Setting this to a value above 4 may increase the code size
104 config SILENT_CONSOLE
105 bool "Support a silent console"
107 This option allows the console to be silenced, meaning that no
108 output will appear on the console devices. This is controlled by
109 setting the environment variable 'silent' to a non-empty value.
110 Note this also silences the console when booting Linux.
112 When the console is set up, the variable is checked, and the
113 GD_FLG_SILENT flag is set. Changing the environment variable later
114 will update the flag.
116 config SPL_SILENT_CONSOLE
117 bool "Use a silent console in SPL"
118 default y if SILENT_CONSOLE && !SANDBOX
120 This selects a silent console in SPL. When enabled it drops some
121 output messages. The GD_FLG_SILENT flag is not used in SPL so there
122 is no run-time control of console messages in SPL.
124 Future work may allow the SPL console to be silenced completely using
127 config TPL_SILENT_CONSOLE
128 bool "Use a silent console in TPL"
129 default y if SILENT_CONSOLE && !SANDBOX
131 This selects a silent console in TPL. When enabled it drops some
132 output messages. The GD_FLG_SILENT flag is not used in TPL so there
133 is no run-time control of console messages in TPL.
135 Future work may allow the TPL console to be silenced completely using
138 config SILENT_U_BOOT_ONLY
139 bool "Only silence the U-Boot console"
140 depends on SILENT_CONSOLE
142 Normally when the U-Boot console is silenced, Linux's console is
143 also silenced (assuming the board boots into Linux). This option
144 allows the linux console to operate normally, even if U-Boot's
147 config SILENT_CONSOLE_UPDATE_ON_SET
148 bool "Changes to the 'silent' environment variable update immediately"
149 depends on SILENT_CONSOLE
150 default y if SILENT_CONSOLE
152 When the 'silent' environment variable is changed, update the
153 console silence flag immediately. This allows 'setenv' to be used
154 to silence or un-silence the console.
156 The effect is that any change to the variable will affect the
159 config SILENT_CONSOLE_UPDATE_ON_RELOC
160 bool "Allow flags to take effect on relocation"
161 depends on SILENT_CONSOLE
163 In some cases the environment is not available until relocation
164 (e.g. NAND). This option makes the value of the 'silent'
165 environment variable take effect at relocation.
167 config SILENT_CONSOLE_UNTIL_ENV
168 bool "Keep console silent until environment is loaded"
169 depends on SILENT_CONSOLE
171 This option makes sure U-Boot will never use the console unless the
172 environment from flash does not contain the 'silent' variable. If
173 set, the console is kept silent until after the environment was
174 loaded. Use this in combination with PRE_CONSOLE_BUFFER to print out
175 earlier messages after loading the environment when allowed.
177 config PRE_CONSOLE_BUFFER
178 bool "Buffer characters before the console is available"
180 Prior to the console being initialised (i.e. serial UART
181 initialised etc) all console output is silently discarded.
182 Defining CONFIG_PRE_CONSOLE_BUFFER will cause U-Boot to
183 buffer any console messages prior to the console being
184 initialised to a buffer. The buffer is a circular buffer, so
185 if it overflows, earlier output is discarded.
187 Note that this is not currently supported in SPL. It would be
188 useful to be able to share the pre-console buffer with SPL.
190 config PRE_CON_BUF_SZ
191 int "Sets the size of the pre-console buffer"
192 depends on PRE_CONSOLE_BUFFER
195 The size of the pre-console buffer affects how much console output
196 can be held before it overflows and starts discarding earlier
197 output. Normally there is very little output at this early stage,
198 unless debugging is enabled, so allow enough for ~10 lines of
201 This is a useful feature if you are using a video console and
202 want to see the full boot output on the console. Without this
203 option only the post-relocation output will be displayed.
205 config PRE_CON_BUF_ADDR
206 hex "Address of the pre-console buffer"
207 depends on PRE_CONSOLE_BUFFER
208 default 0x2f000000 if ARCH_SUNXI && MACH_SUN9I
209 default 0x4f000000 if ARCH_SUNXI && !MACH_SUN9I
210 default 0x0f000000 if ROCKCHIP_RK3288
211 default 0x0f200000 if ROCKCHIP_RK3399
213 This sets the start address of the pre-console buffer. This must
214 be in available memory and is accessed before relocation and
215 possibly before DRAM is set up. Therefore choose an address
218 We should consider removing this option and allocating the memory
219 in board_init_f_init_reserve() instead.
221 config CONSOLE_FLUSH_SUPPORT
222 bool "Enable console flush support"
225 This enables compilation of flush() function for console flush support.
228 bool "Enable console multiplexing"
229 default y if VIDEO || LCD
231 This allows multiple devices to be used for each console 'file'.
232 For example, stdout can be set to go to serial and video.
233 Similarly, stdin can be set to come from serial and keyboard.
234 Input can be provided from either source. Console multiplexing
235 adds a small amount of size to U-Boot. Changes to the environment
236 variables stdout, stdin and stderr will take effect immediately.
238 config SYS_CONSOLE_IS_IN_ENV
239 bool "Select console devices from the environment"
240 default y if CONSOLE_MUX
242 This allows multiple input/output devices to be set at boot time.
243 For example, if stdout is set to "serial,vidconsole" then output
244 will be sent to both the serial and video devices on boot. The
245 environment variables can be updated after boot to change the
246 input/output devices.
248 config SYS_CONSOLE_OVERWRITE_ROUTINE
249 bool "Allow board control over console overwriting"
251 If this is enabled, and the board-specific function
252 overwrite_console() returns 1, the stdin, stderr and stdout are
253 switched to the serial port, else the settings in the environment
254 are used. If this is not enabled, the console will not be switched
257 config SYS_CONSOLE_ENV_OVERWRITE
258 bool "Update environment variables during console init"
259 depends on SYS_CONSOLE_IS_IN_ENV
261 The console environment variables (stdout, stdin, stderr) can be
262 used to determine the correct console devices on start-up. This
263 option writes the console devices to these variables on console
264 start-up (after relocation). This causes the environment to be
265 updated to match the console devices actually chosen.
267 config SYS_CONSOLE_INFO_QUIET
268 bool "Don't display the console devices on boot"
270 Normally U-Boot displays the current settings for stdout, stdin
271 and stderr on boot when the post-relocation console is set up.
272 Enable this option to suppress this output. It can be obtained by
273 calling stdio_print_current_devices() from board code.
275 config SYS_STDIO_DEREGISTER
276 bool "Allow deregistering stdio devices"
277 default y if USB_KEYBOARD
279 Generally there is no need to deregister stdio devices since they
280 are never deactivated. But if a stdio device is used which can be
281 removed (for example a USB keyboard) then this option can be
282 enabled to ensure this is handled correctly.
284 config SPL_SYS_STDIO_DEREGISTER
285 bool "Allow deregistering stdio devices in SPL"
287 Generally there is no need to deregister stdio devices since they
288 are never deactivated. But if a stdio device is used which can be
289 removed (for example a USB keyboard) then this option can be
290 enabled to ensure this is handled correctly. This is very rarely
293 config SYS_DEVICE_NULLDEV
294 bool "Enable a null device for stdio"
295 default y if SPLASH_SCREEN || SYS_STDIO_DEREGISTER
297 Enable creation of a "nulldev" stdio device. This allows silent
298 operation of the console by setting stdout to "nulldev". Enable
299 this to use a serial console under board control.
306 bool "Enable logging support"
309 This enables support for logging of status and debug messages. These
310 can be displayed on the console, recorded in a memory buffer, or
311 discarded if not needed. Logging supports various categories and
317 int "Maximum log level to record"
321 This selects the maximum log level that will be recorded. Any value
322 higher than this will be ignored. If possible log statements below
323 this level will be discarded at build time. Levels:
334 9 - debug hardware I/O
336 config LOG_DEFAULT_LEVEL
337 int "Default logging level to display"
338 default LOG_MAX_LEVEL
339 range 0 LOG_MAX_LEVEL
341 This is the default logging level set when U-Boot starts. It can
342 be adjusted later using the 'log level' command. Note that setting
343 this to a value above LOG_MAX_LEVEL will be ineffective, since the
344 higher levels are not compiled in to U-Boot.
355 9 - debug hardware I/O
358 bool "Allow log output to the console"
361 Enables a log driver which writes log records to the console.
362 Generally the console is the serial port or LCD display. Only the
363 log message is shown - other details like level, category, file and
364 line number are omitted.
367 bool "Show source file name in log messages by default"
369 Show the source file name in log messages by default. This value
370 can be overridden using the 'log format' command.
373 bool "Show source line number in log messages by default"
375 Show the source line number in log messages by default. This value
376 can be overridden using the 'log format' command.
379 bool "Show function name in log messages by default"
381 Show the function name in log messages by default. This value can
382 be overridden using the 'log format' command.
385 int "Number of characters to use for function"
388 Sets the field width to use when showing the function. Set this to
389 a larger value if you have lots of long function names, and want
393 bool "Log output to syslog server"
396 Enables a log driver which broadcasts log records via UDP port 514
400 bool "Enable logging support in SPL"
401 depends on LOG && SPL
403 This enables support for logging of status and debug messages. These
404 can be displayed on the console, recorded in a memory buffer, or
405 discarded if not needed. Logging supports various categories and
410 config SPL_LOG_MAX_LEVEL
411 int "Maximum log level to record in SPL"
416 This selects the maximum log level that will be recorded. Any value
417 higher than this will be ignored. If possible log statements below
418 this level will be discarded at build time. Levels:
429 9 - debug hardware I/O
431 config SPL_LOG_CONSOLE
432 bool "Allow log output to the console in SPL"
435 Enables a log driver which writes log records to the console.
436 Generally the console is the serial port or LCD display. Only the
437 log message is shown - other details like level, category, file and
438 line number are omitted.
443 bool "Enable logging support in TPL"
444 depends on LOG && TPL
446 This enables support for logging of status and debug messages. These
447 can be displayed on the console, recorded in a memory buffer, or
448 discarded if not needed. Logging supports various categories and
453 config TPL_LOG_MAX_LEVEL
454 int "Maximum log level to record in TPL"
459 This selects the maximum log level that will be recorded. Any value
460 higher than this will be ignored. If possible log statements below
461 this level will be discarded at build time. Levels:
472 9 - debug hardware I/O
474 config TPL_LOG_CONSOLE
475 bool "Allow log output to the console in TPL"
478 Enables a log driver which writes log records to the console.
479 Generally the console is the serial port or LCD display. Only the
480 log message is shown - other details like level, category, file and
481 line number are omitted.
486 bool "Enable logging support in VPL"
487 depends on LOG && VPL
489 This enables support for logging of status and debug messages. These
490 can be displayed on the console, recorded in a memory buffer, or
491 discarded if not needed. Logging supports various categories and
496 config VPL_LOG_MAX_LEVEL
497 int "Maximum log level to record in VPL"
500 This selects the maximum log level that will be recorded. Any value
501 higher than this will be ignored. If possible log statements below
502 this level will be discarded at build time. Levels:
513 9 - debug hardware I/O
515 config VPL_LOG_CONSOLE
516 bool "Allow log output to the console in VPL"
519 Enables a log driver which writes log records to the console.
520 Generally the console is the serial port or LCD display. Only the
521 log message is shown - other details like level, category, file and
522 line number are omitted.
526 config LOG_ERROR_RETURN
527 bool "Log all functions which return an error"
529 When an error is returned in U-Boot it is sometimes difficult to
530 figure out the root cause. For example, reading from SPI flash may
531 fail due to a problem in the SPI controller or due to the flash part
532 not returning the expected information. This option changes
533 log_ret() to log any errors it sees. With this option disabled,
536 You can add log_ret() to all functions which return an error code.
539 bool "Provide a test for logging"
543 This enables a 'log test' command to test logging. It is normally
544 executed from a pytest and simply outputs logging information
545 in various different ways to test that the logging system works
546 correctly with various settings.
555 bool "Enable board_type entry in global data struct"
557 If this option is enabled, a field will be added to the global
558 data struct to store an unsigned long value for the type of
559 platform that we have determined we are on, at run-time.
561 config DISPLAY_CPUINFO
562 bool "Display information about the CPU during start up"
563 default y if ARC || ARM || NIOS2 || X86 || XTENSA || M68K
565 Display information about the CPU that U-Boot is running on
566 when U-Boot starts up. The function print_cpuinfo() is called
569 config DISPLAY_BOARDINFO
570 bool "Display information about the board during early start up"
571 default y if ARC || ARM || M68K || MIPS || PPC || SANDBOX || XTENSA
573 Display information about the board that U-Boot is running on
574 when U-Boot starts up. The board function checkboard() is called
577 config DISPLAY_BOARDINFO_LATE
578 bool "Display information about the board during late start up"
580 Display information about the board that U-Boot is running on after
581 the relocation phase. The board function checkboard() is called to do
584 menu "Start-up hooks"
587 bool "General-purpose cyclic execution mechanism"
589 This enables a general-purpose cyclic execution infrastructure,
590 to allow "small" (run-time wise) functions to be executed at
591 a specified frequency. Things like LED blinking or watchdog
592 triggering are examples for such tasks.
596 config CYCLIC_MAX_CPU_TIME_US
597 int "Sets the max allowed time for a cyclic function in us"
600 The max allowed time for a cyclic function in us. If a functions
601 takes longer than this duration this function will get unregistered
609 This adds a framework for general purpose sending and processing of
610 events, to allow interested parties to be alerted when something
611 happens. This is an attempt to stem the flow of weak functions,
612 hooks, functions in board_f.c and board_r.c and the Kconfig options
615 See doc/develop/event.rst for more information.
622 Enable this to support adding an event spy at runtime, without adding
623 it to the EVENT_SPY() linker list. This increases code size slightly
624 but provides more flexibility for boards and subsystems that need it.
627 bool "Enable event debugging assistance"
630 Enable this to get useful features for seeing what is happening with
631 events, such as event-type names. This adds to the code size of
632 U-Boot so can be turned off for production builds.
635 bool # General-purpose event-handling mechanism in SPL
638 This adds a framework for general purpose sending and processing of
639 events, to allow interested parties to be alerted when something
640 happens. This is an attempt to stem the flow of weak functions,
641 hooks, functions in board_f.c and board_r.c and the Kconfig options
644 See doc/develop/event.rst for more information.
646 config SPL_EVENT_DYNAMIC
648 depends on SPL_EVENT && EVENT_DYNAMIC
650 Enable this to support adding an event spy at runtime, without adding
651 it to the EVENT_SPY() linker list. This increases code size slightly
652 but provides more flexibility for boards and subsystems that need it.
656 config ARCH_EARLY_INIT_R
659 With this option U-Boot will call arch_early_init_r() soon after
660 relocation. Driver model is running by this point, and the cache
661 is on. Note that board_early_init_r() is called first, if
662 enabled. This can be used to set up architecture-specific devices.
664 config ARCH_MISC_INIT
665 bool "Call arch-specific init after relocation, when console is ready"
667 With this option U-Boot will call arch_misc_init() after
668 relocation to allow miscellaneous arch-dependent initialisation
669 to be performed. This function should be defined by the board
670 and will be called after the console is set up, after relocation.
672 config BOARD_EARLY_INIT_F
673 bool "Call board-specific init before relocation"
675 Some boards need to perform initialisation as soon as possible
676 after boot. With this option, U-Boot calls board_early_init_f()
677 after driver model is ready in the pre-relocation init sequence.
678 Note that the normal serial console is not yet set up, but the
679 debug UART will be available if enabled.
681 config BOARD_EARLY_INIT_R
682 bool "Call board-specific init after relocation"
684 Some boards need to perform initialisation as directly after
685 relocation. With this option, U-Boot calls board_early_init_r()
686 in the post-relocation init sequence.
688 config BOARD_POSTCLK_INIT
689 bool "Call board_postclk_init"
691 Some boards need this to initialize select items, after clocks /
692 timebase and before env / serial.
694 config BOARD_LATE_INIT
695 bool "Execute Board late init"
697 Sometimes board require some initialization code that might
698 require once the actual init done, example saving board specific env,
699 boot-modes etc. which eventually done at late.
701 So this config enable the late init code with the help of board_late_init
702 function which should defined on respective boards.
705 bool "Call set_cpu_clk_info"
709 bool "hwconfig infrastructure"
710 default y if PPC || ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3
714 depends on ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3 || \
715 (FSL_ESDHC_IMX && (ARCH_MX5 || ARCH_MX6 || ARCH_MX7))
718 Enable to call get_clocks() in board_init_f() for platforms other
719 than PowerPC or M68k. This is a legacy option. If not TARGET_BRPPT2
721 config LAST_STAGE_INIT
722 bool "Call board-specific as last setup step"
724 Some boards need to perform initialisation immediately before control
725 is passed to the command-line interpreter (e.g. for initializations
726 that depend on later phases in the init sequence). With this option,
727 U-Boot calls last_stage_init() before the command-line interpreter is
731 bool "Execute Misc Init"
732 default y if ARCH_KEYSTONE || ARCH_SUNXI || MPC85xx
733 default y if ARCH_OMAP2PLUS && !AM33XX
735 Enabling this option calls 'misc_init_r' function
737 config SYS_MALLOC_BOOTPARAMS
738 bool "Malloc a buffer to use for bootparams"
740 In some cases rather than using a known location to store the
741 bi_boot_params portion of gd we need to allocate it from our malloc pool.
743 config SYS_BOOTPARAMS_LEN
744 hex "Size of the bootparam buffer to malloc in bytes"
745 depends on SYS_MALLOC_BOOTPARAMS
746 default 0x20000 if MIPS || RCAR_64
750 bool "Enable I2C connected system identifier EEPROM"
752 A number of different systems and vendors enable a vendor-specified
753 EEPROM that contains various identifying features.
755 config SYS_EEPROM_BUS_NUM
756 int "I2C bus number of the system identifier EEPROM"
761 prompt "EEPROM starts with 'CCID' or 'NXID'"
762 depends on ID_EEPROM && (PPC || ARCH_LS1021A || FSL_LAYERSCAPE)
763 default SYS_I2C_EEPROM_NXID
765 Specify if the Freescale / NXP ID EEPROM starts with 'CCID' or 'NXID'
766 ASCII literal string.
768 config SYS_I2C_EEPROM_CCID
769 bool "EEPROM starts with 'CCID'"
771 config SYS_I2C_EEPROM_NXID
772 bool "EEPROM starts with 'NXID'"
777 bool "Enumerate PCI buses during init"
780 With this option U-Boot will call pci_init() soon after relocation,
781 which will enumerate PCI buses. This is needed, for instance, in the
782 case of DM PCI-based Ethernet devices, which will not be detected
783 without having the enumeration performed earlier.
786 bool "Reset ethernet PHY during init"
788 Implement reset_phy() in board code if required to reset the ethernet
793 endmenu # Init options
795 menu "Security support"
798 bool # "Support hashing API (SHA1, SHA256, etc.)"
800 This provides a way to hash data in memory using various supported
801 algorithms (such as SHA1, MD5, CRC32). The API is defined in hash.h
802 and the algorithms it supports are defined in common/hash.c. See
803 also CMD_HASH for command-line access.
806 bool "Build Android Verified Boot operations"
809 depends on PARTITION_UUIDS
811 This option enables compilation of bootloader-dependent operations,
812 used by Android Verified Boot 2.0 library (libavb). Includes:
813 * Helpers to process strings in order to build OS bootargs.
814 * Helpers to access MMC, similar to drivers/fastboot/fb_mmc.c.
815 * Helpers to alloc/init/free avb ops.
820 hex "Define AVB buffer address"
821 default FASTBOOT_BUF_ADDR
823 AVB requires a buffer for memory transactions. This variable defines the
827 hex "Define AVB buffer SIZE"
828 default FASTBOOT_BUF_SIZE
830 AVB requires a buffer for memory transactions. This variable defines the
836 bool "Build SCP03 - Secure Channel Protocol O3 - controls"
837 depends on OPTEE || SANDBOX
840 This option allows U-Boot to enable and or provision SCP03 on an OPTEE
841 controlled Secured Element.
844 bool # "Support hashing API (SHA1, SHA256, etc.)"
846 This provides a way to hash data in memory using various supported
847 algorithms (such as SHA1, MD5, CRC32). The API is defined in hash.h
848 and the algorithms it supports are defined in common/hash.c. See
849 also CMD_HASH for command-line access.
852 bool # "Support hashing API (SHA1, SHA256, etc.)"
854 This provides a way to hash data in memory using various supported
855 algorithms (such as SHA1, MD5, CRC32). The API is defined in hash.h
856 and the algorithms it supports are defined in common/hash.c. See
857 also CMD_HASH for command-line access.
859 config STACKPROTECTOR
860 bool "Stack Protector buffer overflow detection"
862 Enable stack smash detection through compiler's stack-protector
865 config SPL_STACKPROTECTOR
866 bool "Stack Protector buffer overflow detection for SPL"
867 depends on STACKPROTECTOR && SPL
869 config TPL_STACKPROTECTOR
870 bool "Stack Protector buffer overflow detection for TPL"
871 depends on STACKPROTECTOR && TPL
873 config BOARD_RNG_SEED
874 bool "Provide /chosen/rng-seed property to the linux kernel"
876 Selecting this option requires the board to define a
877 board_rng_seed() function, which should return a buffer
878 which will be used to populate the /chosen/rng-seed property
879 in the device tree for the OS being booted.
881 It is up to the board code (and more generally the whole
882 BSP) where and how to store (or generate) such a seed, how
883 to ensure a given seed is only used once, how to create a
884 new seed for use on subsequent boots, and whether or not the
885 kernel should account any entropy from the given seed.
889 menu "Update support"
896 bool "Auto-update using fitImage via TFTP"
897 depends on FIT && OF_LIBFDT && !MTD_NOR_FLASH
900 This option allows performing update of NOR with data in fitImage
903 config UPDATE_TFTP_CNT_MAX
904 int "The number of connection retries during auto-update"
906 depends on UPDATE_TFTP || DFU_TFTP
908 config UPDATE_TFTP_MSEC_MAX
909 int "Delay in mSec to wait for the TFTP server during auto-update"
911 depends on UPDATE_TFTP || DFU_TFTP
913 config UPDATE_LOAD_ADDR
914 hex "Address in memory to load the update to"
915 depends on UPDATE_TFTP || DFU_TFTP
918 This option defines the location in memory to be used to load the
919 update to, if 'loadaddr' is not set in the environment.
922 bool "Firmware update using fitImage"
923 depends on FIT && OF_LIBFDT
927 This option allows performing update of DFU-capable storage with
931 bool "Android A/B updates"
933 If enabled, adds support for the new Android A/B update model. This
934 allows the bootloader to select which slot to boot from based on the
935 information provided by userspace via the Android boot_ctrl HAL. This
936 allows a bootloader to try a new version of the system but roll back
937 to previous version if the new one didn't boot all the way.
939 config ANDROID_AB_BACKUP_OFFSET
940 hex "Offset of backup bootloader control"
941 depends on ANDROID_AB
944 If non-zero, a backup bootloader message starting at this offset in
945 the partition will tried in the event that the primary one (starting
946 at offset 0) fails its checksum.
953 bool "Support for a bloblist"
955 This enables support for a bloblist in U-Boot, which can be passed
956 from TPL to SPL to U-Boot proper (and potentially to Linux). The
957 blob list supports multiple binary blobs of data, each with a tag,
958 so that different U-Boot components can store data which can survive
959 through to the next phase of the boot.
962 bool "Support for a bloblist in SPL"
963 depends on BLOBLIST && SPL_LIBGENERIC_SUPPORT && SPL_LIBCOMMON_SUPPORT
966 This enables a bloblist in SPL. If this is the first part of U-Boot
967 to run, then the bloblist is set up in SPL and passed to U-Boot
968 proper. If TPL also has a bloblist, then SPL uses the one from there.
971 bool "Support for a bloblist in TPL"
972 depends on BLOBLIST && TPL_LIBGENERIC_SUPPORT && TPL_LIBCOMMON_SUPPORT
975 This enables a bloblist in TPL. The bloblist is set up in TPL and
976 passed to SPL and U-Boot proper.
979 bool "Support for a bloblist in VPL"
980 depends on BLOBLIST && VPL_LIBGENERIC_SUPPORT && VPL_LIBCOMMON_SUPPORT
983 This enables a bloblist in VPL. The bloblist is set up in VPL and
984 passed to SPL and U-Boot proper.
989 prompt "Bloblist location"
991 Select the location of the bloblist, via various means.
993 config BLOBLIST_FIXED
994 bool "Place bloblist at a fixed address in memory"
996 Select this to used a fixed memory address for the bloblist. If the
997 bloblist exists at this address from a previous phase, it used as is.
998 If not it is created at this address in U-Boot.
1000 config BLOBLIST_ALLOC
1001 bool "Allocate bloblist"
1003 Allocate the bloblist using malloc(). This avoids the need to
1004 specify a fixed address on systems where this is unknown or can
1009 config BLOBLIST_ADDR
1010 hex "Address of bloblist"
1011 default 0xc000 if SANDBOX
1012 depends on BLOBLIST_FIXED
1014 Sets the address of the bloblist, set up by the first part of U-Boot
1015 which runs. Subsequent U-Boot phases typically use the same address.
1017 This is not used if BLOBLIST_ALLOC is selected.
1019 config BLOBLIST_SIZE
1020 hex "Size of bloblist"
1023 Sets the size of the bloblist in bytes. This must include all
1024 overhead (alignment, bloblist header, record header). The bloblist
1025 is set up in the first part of U-Boot to run (TPL, SPL or U-Boot
1026 proper), and this sane bloblist is used for subsequent phases.
1028 config BLOBLIST_SIZE_RELOC
1029 hex "Size of bloblist after relocation"
1030 default BLOBLIST_SIZE if BLOBLIST_FIXED || BLOBLIST_ALLOC
1031 default 0 if BLOBLIST_PASSAGE
1033 Sets the size of the bloblist in bytes after relocation. Since U-Boot
1034 has a lot more memory available then, it is possible to use a larger
1035 size than the one set up by SPL. This bloblist is set up during the
1043 prompt "Bloblist location in SPL"
1045 Select the location of the bloblist, via various means. Typically
1046 you should use the same value for SPL as for U-Boot, since they need
1047 to look in the same place. But if BLOBLIST_ALLOC is used, then a
1048 fresh bloblist will be created each time, since there is no shared
1049 address (between phases) for the bloblist.
1051 config SPL_BLOBLIST_FIXED
1052 bool "Place bloblist at a fixed address in memory"
1054 Select this to used a fixed memory address for the bloblist. If the
1055 bloblist exists at this address from a previous phase, it used as is.
1056 If not it is created at this address in SPL.
1058 config SPL_BLOBLIST_ALLOC
1059 bool "Allocate bloblist"
1061 Allocate the bloblist using malloc(). This avoids the need to
1062 specify a fixed address on systems where this is unknown or can
1067 endif # SPL_BLOBLIST
1072 prompt "Bloblist location in TPL"
1074 Select the location of the bloblist, via various means. Typically
1075 you should use the same value for TPL as for U-Boot, since they need
1076 to look in the same place. But if BLOBLIST_ALLOC is used, then a
1077 fresh bloblist will be created each time, since there is no shared
1078 address (between phases) for the bloblist.
1080 config TPL_BLOBLIST_FIXED
1081 bool "Place bloblist at a fixed address in memory"
1083 Select this to used a fixed memory address for the bloblist. If the
1084 bloblist exists at this address from a previous phase, it used as is.
1085 If not it is created at this address in TPL.
1087 config TPL_BLOBLIST_ALLOC
1088 bool "Allocate bloblist"
1090 Allocate the bloblist using malloc(). This avoids the need to
1091 specify a fixed address on systems where this is unknown or can
1096 endif # TPL_BLOBLIST
1101 prompt "Bloblist location in VPL"
1103 Select the location of the bloblist, via various means. Typically
1104 you should use the same value for VPL as for U-Boot, since they need
1105 to look in the same place. But if BLOBLIST_ALLOC is used, then a
1106 fresh bloblist will be created each time, since there is no shared
1107 address (between phases) for the bloblist.
1109 config VPL_BLOBLIST_FIXED
1110 bool "Place bloblist at a fixed address in memory"
1112 Select this to used a fixed memory address for the bloblist. If the
1113 bloblist exists at this address from a previous phase, it used as is.
1114 If not it is created at this address in VPL.
1116 config VPL_BLOBLIST_ALLOC
1117 bool "Allocate bloblist"
1119 Allocate the bloblist using malloc(). This avoids the need to
1120 specify a fixed address on systems where this is unknown or can
1125 endif # VPL_BLOBLIST
1129 source "common/spl/Kconfig"
1131 config IMAGE_SIGN_INFO
1136 Enable image_sign_info helper functions.
1140 config SPL_IMAGE_SIGN_INFO
1145 Enable image_sign_info helper functions in SPL.
1147 config VPL_IMAGE_SIGN_INFO
1152 Enable image_sign_info helper functions in SPL.
1157 bool "FDT tools for simplefb support"
1158 depends on OF_LIBFDT
1160 Enable the fdt tools to manage the simple fb nodes in device tree.
1161 These functions can be used by board to indicate to the OS
1162 the presence of the simple frame buffer with associated reserved
1169 bool "Enable bmp image display"
1171 Enable bmp functions to display bmp image and get bmp info.
1174 bool "Enable bmp image display at SPL"
1175 depends on SPL_VIDEO
1177 Enable bmp functions to display bmp image and get bmp info at SPL.