menu "Console" config MENU bool help This is the library functionality to provide a text-based menu of choices for the user to make choices with. config CONSOLE_RECORD bool "Console recording" help This provides a way to record console output (and provide console input) through circular buffers. This is mostly useful for testing. Console output is recorded even when the console is silent. To enable console recording, call console_record_reset_enable() from your code. config CONSOLE_RECORD_INIT_F bool "Enable console recording during pre-relocation init" depends on CONSOLE_RECORD && SYS_MALLOC_F default y help This option enables console recording during pre-relocation init. CONFIG_SYS_MALLOC_F must be enabled to use this feature. config CONSOLE_RECORD_OUT_SIZE hex "Output buffer size" depends on CONSOLE_RECORD default 0x400 if CONSOLE_RECORD help Set the size of the console output buffer. When this fills up, no more data will be recorded until some is removed. The buffer is allocated immediately after the malloc() region is ready. config CONSOLE_RECORD_OUT_SIZE_F hex "Output buffer size before relocation" depends on CONSOLE_RECORD default 0x400 if CONSOLE_RECORD help Set the size of the console output buffer before relocation. When this fills up, no more data will be recorded until some is removed. The buffer is allocated immediately after the early malloc() region is ready. config CONSOLE_RECORD_IN_SIZE hex "Input buffer size" depends on CONSOLE_RECORD default 0x100 if CONSOLE_RECORD help Set the size of the console input buffer. When this contains data, tstc() and getc() will use this in preference to real device input. The buffer is allocated immediately after the malloc() region is ready. config DISABLE_CONSOLE bool "Add functionality to disable console completely" help Disable console (in & out). config IDENT_STRING string "Board specific string to be added to uboot version string" help This options adds the board specific name to u-boot version. config LOGLEVEL int "loglevel" default 4 range 0 10 help All Messages with a loglevel smaller than the console loglevel will be compiled in. The loglevels are defined as follows: 0 - emergency 1 - alert 2 - critical 3 - error 4 - warning 5 - note 6 - info 7 - debug 8 - debug content 9 - debug hardware I/O config SPL_LOGLEVEL int depends on SPL default LOGLEVEL config TPL_LOGLEVEL int depends on TPL default LOGLEVEL config VPL_LOGLEVEL int "loglevel for VPL" depends on VPL default LOGLEVEL help All Messages with a loglevel smaller than the console loglevel will be compiled in to VPL. See LOGLEVEL for a list of available log levels. Setting this to a value above 4 may increase the code size significantly. config SILENT_CONSOLE bool "Support a silent console" help This option allows the console to be silenced, meaning that no output will appear on the console devices. This is controlled by setting the environment variable 'silent' to a non-empty value. Note this also silences the console when booting Linux. When the console is set up, the variable is checked, and the GD_FLG_SILENT flag is set. Changing the environment variable later will update the flag. config SPL_SILENT_CONSOLE bool "Use a silent console in SPL" default y if SILENT_CONSOLE && !SANDBOX help This selects a silent console in SPL. When enabled it drops some output messages. The GD_FLG_SILENT flag is not used in SPL so there is no run-time control of console messages in SPL. Future work may allow the SPL console to be silenced completely using this option. config TPL_SILENT_CONSOLE bool "Use a silent console in TPL" default y if SILENT_CONSOLE && !SANDBOX help This selects a silent console in TPL. When enabled it drops some output messages. The GD_FLG_SILENT flag is not used in TPL so there is no run-time control of console messages in TPL. Future work may allow the TPL console to be silenced completely using this option. config SILENT_U_BOOT_ONLY bool "Only silence the U-Boot console" depends on SILENT_CONSOLE help Normally when the U-Boot console is silenced, Linux's console is also silenced (assuming the board boots into Linux). This option allows the linux console to operate normally, even if U-Boot's is silenced. config SILENT_CONSOLE_UPDATE_ON_SET bool "Changes to the 'silent' environment variable update immediately" depends on SILENT_CONSOLE default y if SILENT_CONSOLE help When the 'silent' environment variable is changed, update the console silence flag immediately. This allows 'setenv' to be used to silence or un-silence the console. The effect is that any change to the variable will affect the GD_FLG_SILENT flag. config SILENT_CONSOLE_UPDATE_ON_RELOC bool "Allow flags to take effect on relocation" depends on SILENT_CONSOLE help In some cases the environment is not available until relocation (e.g. NAND). This option makes the value of the 'silent' environment variable take effect at relocation. config SILENT_CONSOLE_UNTIL_ENV bool "Keep console silent until environment is loaded" depends on SILENT_CONSOLE help This option makes sure U-Boot will never use the console unless the environment from flash does not contain the 'silent' variable. If set, the console is kept silent until after the environment was loaded. Use this in combination with PRE_CONSOLE_BUFFER to print out earlier messages after loading the environment when allowed. config PRE_CONSOLE_BUFFER bool "Buffer characters before the console is available" help Prior to the console being initialised (i.e. serial UART initialised etc) all console output is silently discarded. Defining CONFIG_PRE_CONSOLE_BUFFER will cause U-Boot to buffer any console messages prior to the console being initialised to a buffer. The buffer is a circular buffer, so if it overflows, earlier output is discarded. Note that this is not currently supported in SPL. It would be useful to be able to share the pre-console buffer with SPL. config PRE_CON_BUF_SZ int "Sets the size of the pre-console buffer" depends on PRE_CONSOLE_BUFFER default 4096 help The size of the pre-console buffer affects how much console output can be held before it overflows and starts discarding earlier output. Normally there is very little output at this early stage, unless debugging is enabled, so allow enough for ~10 lines of text. This is a useful feature if you are using a video console and want to see the full boot output on the console. Without this option only the post-relocation output will be displayed. config PRE_CON_BUF_ADDR hex "Address of the pre-console buffer" depends on PRE_CONSOLE_BUFFER default 0x2f000000 if ARCH_SUNXI && MACH_SUN9I default 0x4f000000 if ARCH_SUNXI && !MACH_SUN9I default 0x0f000000 if ROCKCHIP_RK3288 default 0x0f200000 if ROCKCHIP_RK3399 help This sets the start address of the pre-console buffer. This must be in available memory and is accessed before relocation and possibly before DRAM is set up. Therefore choose an address carefully. We should consider removing this option and allocating the memory in board_init_f_init_reserve() instead. config CONSOLE_FLUSH_SUPPORT bool "Enable console flush support" default y help This enables compilation of flush() function for console flush support. config CONSOLE_MUX bool "Enable console multiplexing" default y if VIDEO || LCD help This allows multiple devices to be used for each console 'file'. For example, stdout can be set to go to serial and video. Similarly, stdin can be set to come from serial and keyboard. Input can be provided from either source. Console multiplexing adds a small amount of size to U-Boot. Changes to the environment variables stdout, stdin and stderr will take effect immediately. config SYS_CONSOLE_IS_IN_ENV bool "Select console devices from the environment" default y if CONSOLE_MUX help This allows multiple input/output devices to be set at boot time. For example, if stdout is set to "serial,vidconsole" then output will be sent to both the serial and video devices on boot. The environment variables can be updated after boot to change the input/output devices. config SYS_CONSOLE_OVERWRITE_ROUTINE bool "Allow board control over console overwriting" help If this is enabled, and the board-specific function overwrite_console() returns 1, the stdin, stderr and stdout are switched to the serial port, else the settings in the environment are used. If this is not enabled, the console will not be switched to serial. config SYS_CONSOLE_ENV_OVERWRITE bool "Update environment variables during console init" depends on SYS_CONSOLE_IS_IN_ENV help The console environment variables (stdout, stdin, stderr) can be used to determine the correct console devices on start-up. This option writes the console devices to these variables on console start-up (after relocation). This causes the environment to be updated to match the console devices actually chosen. config SYS_CONSOLE_INFO_QUIET bool "Don't display the console devices on boot" help Normally U-Boot displays the current settings for stdout, stdin and stderr on boot when the post-relocation console is set up. Enable this option to suppress this output. It can be obtained by calling stdio_print_current_devices() from board code. config SYS_STDIO_DEREGISTER bool "Allow deregistering stdio devices" default y if USB_KEYBOARD help Generally there is no need to deregister stdio devices since they are never deactivated. But if a stdio device is used which can be removed (for example a USB keyboard) then this option can be enabled to ensure this is handled correctly. config SPL_SYS_STDIO_DEREGISTER bool "Allow deregistering stdio devices in SPL" help Generally there is no need to deregister stdio devices since they are never deactivated. But if a stdio device is used which can be removed (for example a USB keyboard) then this option can be enabled to ensure this is handled correctly. This is very rarely needed in SPL. config SYS_DEVICE_NULLDEV bool "Enable a null device for stdio" default y if SPLASH_SCREEN || SYS_STDIO_DEREGISTER help Enable creation of a "nulldev" stdio device. This allows silent operation of the console by setting stdout to "nulldev". Enable this to use a serial console under board control. endmenu menu "Logging" config LOG bool "Enable logging support" depends on DM help This enables support for logging of status and debug messages. These can be displayed on the console, recorded in a memory buffer, or discarded if not needed. Logging supports various categories and levels of severity. if LOG config LOG_MAX_LEVEL int "Maximum log level to record" default 6 range 0 9 help This selects the maximum log level that will be recorded. Any value higher than this will be ignored. If possible log statements below this level will be discarded at build time. Levels: 0 - emergency 1 - alert 2 - critical 3 - error 4 - warning 5 - note 6 - info 7 - debug 8 - debug content 9 - debug hardware I/O config LOG_DEFAULT_LEVEL int "Default logging level to display" default LOG_MAX_LEVEL range 0 LOG_MAX_LEVEL help This is the default logging level set when U-Boot starts. It can be adjusted later using the 'log level' command. Note that setting this to a value above LOG_MAX_LEVEL will be ineffective, since the higher levels are not compiled in to U-Boot. 0 - emergency 1 - alert 2 - critical 3 - error 4 - warning 5 - note 6 - info 7 - debug 8 - debug content 9 - debug hardware I/O config LOG_CONSOLE bool "Allow log output to the console" default y help Enables a log driver which writes log records to the console. Generally the console is the serial port or LCD display. Only the log message is shown - other details like level, category, file and line number are omitted. config LOGF_FILE bool "Show source file name in log messages by default" help Show the source file name in log messages by default. This value can be overridden using the 'log format' command. config LOGF_LINE bool "Show source line number in log messages by default" help Show the source line number in log messages by default. This value can be overridden using the 'log format' command. config LOGF_FUNC bool "Show function name in log messages by default" help Show the function name in log messages by default. This value can be overridden using the 'log format' command. config LOGF_FUNC_PAD int "Number of characters to use for function" default 20 help Sets the field width to use when showing the function. Set this to a larger value if you have lots of long function names, and want things to line up. config LOG_SYSLOG bool "Log output to syslog server" depends on NET help Enables a log driver which broadcasts log records via UDP port 514 to syslog servers. config SPL_LOG bool "Enable logging support in SPL" depends on LOG && SPL help This enables support for logging of status and debug messages. These can be displayed on the console, recorded in a memory buffer, or discarded if not needed. Logging supports various categories and levels of severity. if SPL_LOG config SPL_LOG_MAX_LEVEL int "Maximum log level to record in SPL" depends on SPL_LOG default 3 range 0 9 help This selects the maximum log level that will be recorded. Any value higher than this will be ignored. If possible log statements below this level will be discarded at build time. Levels: 0 - emergency 1 - alert 2 - critical 3 - error 4 - warning 5 - note 6 - info 7 - debug 8 - debug content 9 - debug hardware I/O config SPL_LOG_CONSOLE bool "Allow log output to the console in SPL" default y help Enables a log driver which writes log records to the console. Generally the console is the serial port or LCD display. Only the log message is shown - other details like level, category, file and line number are omitted. endif config TPL_LOG bool "Enable logging support in TPL" depends on LOG && TPL help This enables support for logging of status and debug messages. These can be displayed on the console, recorded in a memory buffer, or discarded if not needed. Logging supports various categories and levels of severity. if TPL_LOG config TPL_LOG_MAX_LEVEL int "Maximum log level to record in TPL" depends on TPL_LOG default 3 range 0 9 help This selects the maximum log level that will be recorded. Any value higher than this will be ignored. If possible log statements below this level will be discarded at build time. Levels: 0 - emergency 1 - alert 2 - critical 3 - error 4 - warning 5 - note 6 - info 7 - debug 8 - debug content 9 - debug hardware I/O config TPL_LOG_CONSOLE bool "Allow log output to the console in TPL" default y help Enables a log driver which writes log records to the console. Generally the console is the serial port or LCD display. Only the log message is shown - other details like level, category, file and line number are omitted. endif config VPL_LOG bool "Enable logging support in VPL" depends on LOG && VPL help This enables support for logging of status and debug messages. These can be displayed on the console, recorded in a memory buffer, or discarded if not needed. Logging supports various categories and levels of severity. if VPL_LOG config VPL_LOG_MAX_LEVEL int "Maximum log level to record in VPL" default 3 help This selects the maximum log level that will be recorded. Any value higher than this will be ignored. If possible log statements below this level will be discarded at build time. Levels: 0 - emergency 1 - alert 2 - critical 3 - error 4 - warning 5 - note 6 - info 7 - debug 8 - debug content 9 - debug hardware I/O config VPL_LOG_CONSOLE bool "Allow log output to the console in VPL" default y help Enables a log driver which writes log records to the console. Generally the console is the serial port or LCD display. Only the log message is shown - other details like level, category, file and line number are omitted. endif config LOG_ERROR_RETURN bool "Log all functions which return an error" help When an error is returned in U-Boot it is sometimes difficult to figure out the root cause. For example, reading from SPI flash may fail due to a problem in the SPI controller or due to the flash part not returning the expected information. This option changes log_ret() to log any errors it sees. With this option disabled, log_ret() is a nop. You can add log_ret() to all functions which return an error code. config LOG_TEST bool "Provide a test for logging" depends on UNIT_TEST default y if SANDBOX help This enables a 'log test' command to test logging. It is normally executed from a pytest and simply outputs logging information in various different ways to test that the logging system works correctly with various settings. endif endmenu menu "Init options" config BOARD_TYPES bool "Enable board_type entry in global data struct" help If this option is enabled, a field will be added to the global data struct to store an unsigned long value for the type of platform that we have determined we are on, at run-time. config DISPLAY_CPUINFO bool "Display information about the CPU during start up" default y if ARC || ARM || NIOS2 || X86 || XTENSA || M68K help Display information about the CPU that U-Boot is running on when U-Boot starts up. The function print_cpuinfo() is called to do this. config DISPLAY_BOARDINFO bool "Display information about the board during early start up" default y if ARC || ARM || M68K || MIPS || PPC || SANDBOX || XTENSA help Display information about the board that U-Boot is running on when U-Boot starts up. The board function checkboard() is called to do this. config DISPLAY_BOARDINFO_LATE bool "Display information about the board during late start up" help Display information about the board that U-Boot is running on after the relocation phase. The board function checkboard() is called to do this. menu "Start-up hooks" config CYCLIC bool "General-purpose cyclic execution mechanism" help This enables a general-purpose cyclic execution infrastructure, to allow "small" (run-time wise) functions to be executed at a specified frequency. Things like LED blinking or watchdog triggering are examples for such tasks. if CYCLIC config CYCLIC_MAX_CPU_TIME_US int "Sets the max allowed time for a cyclic function in us" default 1000 help The max allowed time for a cyclic function in us. If a functions takes longer than this duration this function will get unregistered automatically. endif # CYCLIC config EVENT bool help This adds a framework for general purpose sending and processing of events, to allow interested parties to be alerted when something happens. This is an attempt to stem the flow of weak functions, hooks, functions in board_f.c and board_r.c and the Kconfig options below. See doc/develop/event.rst for more information. if EVENT config EVENT_DYNAMIC bool help Enable this to support adding an event spy at runtime, without adding it to the EVENT_SPY() linker list. This increases code size slightly but provides more flexibility for boards and subsystems that need it. config EVENT_DEBUG bool "Enable event debugging assistance" default y if SANDBOX help Enable this to get useful features for seeing what is happening with events, such as event-type names. This adds to the code size of U-Boot so can be turned off for production builds. config SPL_EVENT bool # General-purpose event-handling mechanism in SPL depends on SPL help This adds a framework for general purpose sending and processing of events, to allow interested parties to be alerted when something happens. This is an attempt to stem the flow of weak functions, hooks, functions in board_f.c and board_r.c and the Kconfig options below. See doc/develop/event.rst for more information. config SPL_EVENT_DYNAMIC bool depends on SPL_EVENT && EVENT_DYNAMIC help Enable this to support adding an event spy at runtime, without adding it to the EVENT_SPY() linker list. This increases code size slightly but provides more flexibility for boards and subsystems that need it. endif # EVENT config ARCH_EARLY_INIT_R bool help With this option U-Boot will call arch_early_init_r() soon after relocation. Driver model is running by this point, and the cache is on. Note that board_early_init_r() is called first, if enabled. This can be used to set up architecture-specific devices. config ARCH_MISC_INIT bool "Call arch-specific init after relocation, when console is ready" help With this option U-Boot will call arch_misc_init() after relocation to allow miscellaneous arch-dependent initialisation to be performed. This function should be defined by the board and will be called after the console is set up, after relocation. config BOARD_EARLY_INIT_F bool "Call board-specific init before relocation" help Some boards need to perform initialisation as soon as possible after boot. With this option, U-Boot calls board_early_init_f() after driver model is ready in the pre-relocation init sequence. Note that the normal serial console is not yet set up, but the debug UART will be available if enabled. config BOARD_EARLY_INIT_R bool "Call board-specific init after relocation" help Some boards need to perform initialisation as directly after relocation. With this option, U-Boot calls board_early_init_r() in the post-relocation init sequence. config BOARD_POSTCLK_INIT bool "Call board_postclk_init" help Some boards need this to initialize select items, after clocks / timebase and before env / serial. config BOARD_LATE_INIT bool "Execute Board late init" help Sometimes board require some initialization code that might require once the actual init done, example saving board specific env, boot-modes etc. which eventually done at late. So this config enable the late init code with the help of board_late_init function which should defined on respective boards. config CLOCKS bool "Call set_cpu_clk_info" depends on ARM config HWCONFIG bool "hwconfig infrastructure" default y if PPC || ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3 config SYS_FSL_CLK bool depends on ARCH_LS1021A || FSL_LSCH2 || FSL_LSCH3 || \ (FSL_ESDHC_IMX && (ARCH_MX5 || ARCH_MX6 || ARCH_MX7)) default y help Enable to call get_clocks() in board_init_f() for platforms other than PowerPC or M68k. This is a legacy option. If not TARGET_BRPPT2 config LAST_STAGE_INIT bool "Call board-specific as last setup step" help Some boards need to perform initialisation immediately before control is passed to the command-line interpreter (e.g. for initializations that depend on later phases in the init sequence). With this option, U-Boot calls last_stage_init() before the command-line interpreter is started. config MISC_INIT_R bool "Execute Misc Init" default y if ARCH_KEYSTONE || ARCH_SUNXI || MPC85xx default y if ARCH_OMAP2PLUS && !AM33XX help Enabling this option calls 'misc_init_r' function config SYS_MALLOC_BOOTPARAMS bool "Malloc a buffer to use for bootparams" help In some cases rather than using a known location to store the bi_boot_params portion of gd we need to allocate it from our malloc pool. config SYS_BOOTPARAMS_LEN hex "Size of the bootparam buffer to malloc in bytes" depends on SYS_MALLOC_BOOTPARAMS default 0x20000 if MIPS || RCAR_64 default 0x10000 config ID_EEPROM bool "Enable I2C connected system identifier EEPROM" help A number of different systems and vendors enable a vendor-specified EEPROM that contains various identifying features. config SYS_EEPROM_BUS_NUM int "I2C bus number of the system identifier EEPROM" depends on ID_EEPROM default 0 choice prompt "EEPROM starts with 'CCID' or 'NXID'" depends on ID_EEPROM && (PPC || ARCH_LS1021A || FSL_LAYERSCAPE) default SYS_I2C_EEPROM_NXID help Specify if the Freescale / NXP ID EEPROM starts with 'CCID' or 'NXID' ASCII literal string. config SYS_I2C_EEPROM_CCID bool "EEPROM starts with 'CCID'" config SYS_I2C_EEPROM_NXID bool "EEPROM starts with 'NXID'" endchoice config PCI_INIT_R bool "Enumerate PCI buses during init" depends on PCI help With this option U-Boot will call pci_init() soon after relocation, which will enumerate PCI buses. This is needed, for instance, in the case of DM PCI-based Ethernet devices, which will not be detected without having the enumeration performed earlier. config RESET_PHY_R bool "Reset ethernet PHY during init" help Implement reset_phy() in board code if required to reset the ethernet PHY. endmenu endmenu # Init options menu "Security support" config HASH bool # "Support hashing API (SHA1, SHA256, etc.)" help This provides a way to hash data in memory using various supported algorithms (such as SHA1, MD5, CRC32). The API is defined in hash.h and the algorithms it supports are defined in common/hash.c. See also CMD_HASH for command-line access. config AVB_VERIFY bool "Build Android Verified Boot operations" depends on LIBAVB depends on MMC depends on PARTITION_UUIDS help This option enables compilation of bootloader-dependent operations, used by Android Verified Boot 2.0 library (libavb). Includes: * Helpers to process strings in order to build OS bootargs. * Helpers to access MMC, similar to drivers/fastboot/fb_mmc.c. * Helpers to alloc/init/free avb ops. if AVB_VERIFY config AVB_BUF_ADDR hex "Define AVB buffer address" default FASTBOOT_BUF_ADDR help AVB requires a buffer for memory transactions. This variable defines the buffer address. config AVB_BUF_SIZE hex "Define AVB buffer SIZE" default FASTBOOT_BUF_SIZE help AVB requires a buffer for memory transactions. This variable defines the buffer size. endif # AVB_VERIFY config SCP03 bool "Build SCP03 - Secure Channel Protocol O3 - controls" depends on OPTEE || SANDBOX depends on TEE help This option allows U-Boot to enable and or provision SCP03 on an OPTEE controlled Secured Element. config SPL_HASH bool # "Support hashing API (SHA1, SHA256, etc.)" help This provides a way to hash data in memory using various supported algorithms (such as SHA1, MD5, CRC32). The API is defined in hash.h and the algorithms it supports are defined in common/hash.c. See also CMD_HASH for command-line access. config TPL_HASH bool # "Support hashing API (SHA1, SHA256, etc.)" help This provides a way to hash data in memory using various supported algorithms (such as SHA1, MD5, CRC32). The API is defined in hash.h and the algorithms it supports are defined in common/hash.c. See also CMD_HASH for command-line access. config STACKPROTECTOR bool "Stack Protector buffer overflow detection" help Enable stack smash detection through compiler's stack-protector canary logic config SPL_STACKPROTECTOR bool "Stack Protector buffer overflow detection for SPL" depends on STACKPROTECTOR && SPL config TPL_STACKPROTECTOR bool "Stack Protector buffer overflow detection for TPL" depends on STACKPROTECTOR && TPL config BOARD_RNG_SEED bool "Provide /chosen/rng-seed property to the linux kernel" help Selecting this option requires the board to define a board_rng_seed() function, which should return a buffer which will be used to populate the /chosen/rng-seed property in the device tree for the OS being booted. It is up to the board code (and more generally the whole BSP) where and how to store (or generate) such a seed, how to ensure a given seed is only used once, how to create a new seed for use on subsequent boots, and whether or not the kernel should account any entropy from the given seed. endmenu menu "Update support" config UPDATE_COMMON bool select DFU_WRITE_ALT config UPDATE_TFTP bool "Auto-update using fitImage via TFTP" depends on FIT && OF_LIBFDT && !MTD_NOR_FLASH select UPDATE_COMMON help This option allows performing update of NOR with data in fitImage sent via TFTP boot. config UPDATE_TFTP_CNT_MAX int "The number of connection retries during auto-update" default 0 depends on UPDATE_TFTP || DFU_TFTP config UPDATE_TFTP_MSEC_MAX int "Delay in mSec to wait for the TFTP server during auto-update" default 100 depends on UPDATE_TFTP || DFU_TFTP config UPDATE_LOAD_ADDR hex "Address in memory to load the update to" depends on UPDATE_TFTP || DFU_TFTP default 0x100000 help This option defines the location in memory to be used to load the update to, if 'loadaddr' is not set in the environment. config UPDATE_FIT bool "Firmware update using fitImage" depends on FIT && OF_LIBFDT depends on DFU select UPDATE_COMMON help This option allows performing update of DFU-capable storage with data in fitImage. config ANDROID_AB bool "Android A/B updates" help If enabled, adds support for the new Android A/B update model. This allows the bootloader to select which slot to boot from based on the information provided by userspace via the Android boot_ctrl HAL. This allows a bootloader to try a new version of the system but roll back to previous version if the new one didn't boot all the way. config ANDROID_AB_BACKUP_OFFSET hex "Offset of backup bootloader control" depends on ANDROID_AB default 0x0 help If non-zero, a backup bootloader message starting at this offset in the partition will tried in the event that the primary one (starting at offset 0) fails its checksum. endmenu menu "Blob list" config BLOBLIST bool "Support for a bloblist" help This enables support for a bloblist in U-Boot, which can be passed from TPL to SPL to U-Boot proper (and potentially to Linux). The blob list supports multiple binary blobs of data, each with a tag, so that different U-Boot components can store data which can survive through to the next phase of the boot. config SPL_BLOBLIST bool "Support for a bloblist in SPL" depends on BLOBLIST && SPL_LIBGENERIC_SUPPORT && SPL_LIBCOMMON_SUPPORT default y if SPL help This enables a bloblist in SPL. If this is the first part of U-Boot to run, then the bloblist is set up in SPL and passed to U-Boot proper. If TPL also has a bloblist, then SPL uses the one from there. config TPL_BLOBLIST bool "Support for a bloblist in TPL" depends on BLOBLIST && TPL_LIBGENERIC_SUPPORT && TPL_LIBCOMMON_SUPPORT default y if TPL help This enables a bloblist in TPL. The bloblist is set up in TPL and passed to SPL and U-Boot proper. config VPL_BLOBLIST bool "Support for a bloblist in VPL" depends on BLOBLIST && VPL_LIBGENERIC_SUPPORT && VPL_LIBCOMMON_SUPPORT default y if VPL help This enables a bloblist in VPL. The bloblist is set up in VPL and passed to SPL and U-Boot proper. if BLOBLIST choice prompt "Bloblist location" help Select the location of the bloblist, via various means. config BLOBLIST_FIXED bool "Place bloblist at a fixed address in memory" help Select this to used a fixed memory address for the bloblist. If the bloblist exists at this address from a previous phase, it used as is. If not it is created at this address in U-Boot. config BLOBLIST_ALLOC bool "Allocate bloblist" help Allocate the bloblist using malloc(). This avoids the need to specify a fixed address on systems where this is unknown or can change at runtime. endchoice config BLOBLIST_ADDR hex "Address of bloblist" default 0xc000 if SANDBOX depends on BLOBLIST_FIXED help Sets the address of the bloblist, set up by the first part of U-Boot which runs. Subsequent U-Boot phases typically use the same address. This is not used if BLOBLIST_ALLOC is selected. config BLOBLIST_SIZE hex "Size of bloblist" default 0x400 help Sets the size of the bloblist in bytes. This must include all overhead (alignment, bloblist header, record header). The bloblist is set up in the first part of U-Boot to run (TPL, SPL or U-Boot proper), and this sane bloblist is used for subsequent phases. config BLOBLIST_SIZE_RELOC hex "Size of bloblist after relocation" default BLOBLIST_SIZE if BLOBLIST_FIXED || BLOBLIST_ALLOC default 0 if BLOBLIST_PASSAGE help Sets the size of the bloblist in bytes after relocation. Since U-Boot has a lot more memory available then, it is possible to use a larger size than the one set up by SPL. This bloblist is set up during the relocation process. endif # BLOBLIST if SPL_BLOBLIST choice prompt "Bloblist location in SPL" help Select the location of the bloblist, via various means. Typically you should use the same value for SPL as for U-Boot, since they need to look in the same place. But if BLOBLIST_ALLOC is used, then a fresh bloblist will be created each time, since there is no shared address (between phases) for the bloblist. config SPL_BLOBLIST_FIXED bool "Place bloblist at a fixed address in memory" help Select this to used a fixed memory address for the bloblist. If the bloblist exists at this address from a previous phase, it used as is. If not it is created at this address in SPL. config SPL_BLOBLIST_ALLOC bool "Allocate bloblist" help Allocate the bloblist using malloc(). This avoids the need to specify a fixed address on systems where this is unknown or can change at runtime. endchoice endif # SPL_BLOBLIST if TPL_BLOBLIST choice prompt "Bloblist location in TPL" help Select the location of the bloblist, via various means. Typically you should use the same value for TPL as for U-Boot, since they need to look in the same place. But if BLOBLIST_ALLOC is used, then a fresh bloblist will be created each time, since there is no shared address (between phases) for the bloblist. config TPL_BLOBLIST_FIXED bool "Place bloblist at a fixed address in memory" help Select this to used a fixed memory address for the bloblist. If the bloblist exists at this address from a previous phase, it used as is. If not it is created at this address in TPL. config TPL_BLOBLIST_ALLOC bool "Allocate bloblist" help Allocate the bloblist using malloc(). This avoids the need to specify a fixed address on systems where this is unknown or can change at runtime. endchoice endif # TPL_BLOBLIST if VPL_BLOBLIST choice prompt "Bloblist location in VPL" help Select the location of the bloblist, via various means. Typically you should use the same value for VPL as for U-Boot, since they need to look in the same place. But if BLOBLIST_ALLOC is used, then a fresh bloblist will be created each time, since there is no shared address (between phases) for the bloblist. config VPL_BLOBLIST_FIXED bool "Place bloblist at a fixed address in memory" help Select this to used a fixed memory address for the bloblist. If the bloblist exists at this address from a previous phase, it used as is. If not it is created at this address in VPL. config VPL_BLOBLIST_ALLOC bool "Allocate bloblist" help Allocate the bloblist using malloc(). This avoids the need to specify a fixed address on systems where this is unknown or can change at runtime. endchoice endif # VPL_BLOBLIST endmenu source "common/spl/Kconfig" config IMAGE_SIGN_INFO bool select SHA1 select SHA256 help Enable image_sign_info helper functions. if IMAGE_SIGN_INFO config SPL_IMAGE_SIGN_INFO bool select SHA1 select SHA256 help Enable image_sign_info helper functions in SPL. config VPL_IMAGE_SIGN_INFO bool select SHA1 select SHA256 help Enable image_sign_info helper functions in SPL. endif config FDT_SIMPLEFB bool "FDT tools for simplefb support" depends on OF_LIBFDT help Enable the fdt tools to manage the simple fb nodes in device tree. These functions can be used by board to indicate to the OS the presence of the simple frame buffer with associated reserved memory config IO_TRACE bool config BMP bool "Enable bmp image display" help Enable bmp functions to display bmp image and get bmp info. config SPL_BMP bool "Enable bmp image display at SPL" depends on SPL_VIDEO help Enable bmp functions to display bmp image and get bmp info at SPL.