-menu "Command line interface"
- depends on !SPL_BUILD
+menu "Boot timing"
-config CMD_BOOTM
- bool "Enable bootm command"
- default y
+config BOOTSTAGE
+ bool "Boot timing and reporting"
help
- Boot an application image from the memory.
+ Enable recording of boot time while booting. To use it, insert
+ calls to bootstage_mark() with a suitable BOOTSTAGE_ID from
+ bootstage.h. Only a single entry is recorded for each ID. You can
+ give the entry a name with bootstage_mark_name(). You can also
+ record elapsed time in a particular stage using bootstage_start()
+ before starting and bootstage_accum() when finished. Bootstage will
+ add up all the accumulated time and report it.
-config CMD_CRC32
- bool "Enable crc32 command"
- default y
+ Normally, IDs are defined in bootstage.h but a small number of
+ additional 'user' IDs can be used by passing BOOTSTAGE_ID_ALLOC
+ as the ID.
+
+ Calls to show_boot_progress() will also result in log entries but
+ these will not have names.
+
+config BOOTSTAGE_REPORT
+ bool "Display a detailed boot timing report before booting the OS"
+ depends on BOOTSTAGE
+ help
+ Enable output of a boot time report just before the OS is booted.
+ This shows how long it took U-Boot to go through each stage of the
+ boot process. The report looks something like this:
+
+ Timer summary in microseconds:
+ Mark Elapsed Stage
+ 0 0 reset
+ 3,575,678 3,575,678 board_init_f start
+ 3,575,695 17 arch_cpu_init A9
+ 3,575,777 82 arch_cpu_init done
+ 3,659,598 83,821 board_init_r start
+ 3,910,375 250,777 main_loop
+ 29,916,167 26,005,792 bootm_start
+ 30,361,327 445,160 start_kernel
+
+config BOOTSTAGE_USER_COUNT
+ hex "Number of boot ID numbers available for user use"
+ default 20
+ help
+ This is the number of available user bootstage records.
+ Each time you call bootstage_mark(BOOTSTAGE_ID_ALLOC, ...)
+ a new ID will be allocated from this stash. If you exceed
+ the limit, recording will stop.
+
+config BOOTSTAGE_FDT
+ bool "Store boot timing information in the OS device tree"
+ depends on BOOTSTAGE
+ help
+ Stash the bootstage information in the FDT. A root 'bootstage'
+ node is created with each bootstage id as a child. Each child
+ has a 'name' property and either 'mark' containing the
+ mark time in microseconds, or 'accum' containing the
+ accumulated time for that bootstage id in microseconds.
+ For example:
+
+ bootstage {
+ 154 {
+ name = "board_init_f";
+ mark = <3575678>;
+ };
+ 170 {
+ name = "lcd";
+ accum = <33482>;
+ };
+ };
+
+ Code in the Linux kernel can find this in /proc/devicetree.
+
+config BOOTSTAGE_STASH
+ bool "Stash the boot timing information in memory before booting OS"
+ depends on BOOTSTAGE
+ help
+ Some OSes do not support device tree. Bootstage can instead write
+ the boot timing information in a binary format at a given address.
+ This happens through a call to bootstage_stash(), typically in
+ the CPU's cleanup_before_linux() function. You can use the
+ 'bootstage stash' and 'bootstage unstash' commands to do this on
+ the command line.
+
+config BOOTSTAGE_STASH_ADDR
+ hex "Address to stash boot timing information"
+ default 0
+ help
+ Provide an address which will not be overwritten by the OS when it
+ starts, so that it can read this information when ready.
+
+config BOOTSTAGE_STASH_SIZE
+ hex "Size of boot timing stash region"
+ default 4096
+ help
+ This should be large enough to hold the bootstage stash. A value of
+ 4096 (4KiB) is normally plenty.
+
+endmenu
+
+menu "Boot media"
+
+config NOR_BOOT
+ bool "Support for booting from NOR flash"
+ depends on NOR
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via NOR. In this case we will enable certain pinmux early
+ as the ROM only partially sets up pinmux. We also default to using
+ NOR for environment.
+
+config NAND_BOOT
+ bool "Support for booting from NAND flash"
+ default n
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via NAND flash. This is not a must, some SoCs need this,
+ some not.
+
+config ONENAND_BOOT
+ bool "Support for booting from ONENAND"
+ default n
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via ONENAND. This is not a must, some SoCs need this,
+ some not.
+
+config QSPI_BOOT
+ bool "Support for booting from QSPI flash"
+ default n
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via QSPI flash. This is not a must, some SoCs need this,
+ some not.
+
+config SATA_BOOT
+ bool "Support for booting from SATA"
+ default n
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via SATA. This is not a must, some SoCs need this,
+ some not.
+
+config SD_BOOT
+ bool "Support for booting from SD/EMMC"
+ default n
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via SD/EMMC. This is not a must, some SoCs need this,
+ some not.
+
+config SPI_BOOT
+ bool "Support for booting from SPI flash"
+ default n
+ help
+ Enabling this will make a U-Boot binary that is capable of being
+ booted via SPI flash. This is not a must, some SoCs need this,
+ some not.
+
+endmenu
+
+config BOOTDELAY
+ int "delay in seconds before automatically booting"
+ default 2
+ depends on AUTOBOOT
+ help
+ Delay before automatically running bootcmd;
+ set to 0 to autoboot with no delay, but you can stop it by key input.
+ set to -1 to disable autoboot.
+ set to -2 to autoboot with no delay and not check for abort
+
+ See doc/README.autoboot for details.
+
+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_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_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 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 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 vaariable '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 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
- Compute CRC32.
+ 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 CMD_EXPORTENV
- bool "Enable env export command"
- default y
+config PRE_CONSOLE_BUFFER
+ bool "Buffer characters before the console is available"
help
- Export environments.
+ 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
+ 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 CMD_GO
- bool "Enable go command"
- default y
+config CONSOLE_MUX
+ bool "Enable console multiplexing"
+ default y if DM_VIDEO || VIDEO || LCD
help
- Start an application at a given address.
+ 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,video" 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"
+ 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 supress 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.
endmenu
+
+config DEFAULT_FDT_FILE
+ string "Default fdt file"
+ help
+ This option is used to set the default fdt file to boot OS.
+
+config SYS_NO_FLASH
+ bool "Disable support for parallel NOR flash"
+ default n
+ help
+ This option is used to disable support for parallel NOR flash.
+
+config VERSION_VARIABLE
+ bool "add U-Boot environment variable vers"
+ default n
+ help
+ If this variable is defined, an environment variable
+ named "ver" is created by U-Boot showing the U-Boot
+ version as printed by the "version" command.
+ Any change to this variable will be reverted at the
+ next reset.
+
+config DISPLAY_CPUINFO
+ bool "Display information about the CPU during start up"
+ default y if ARM || BLACKFIN || NIOS2 || X86 || XTENSA
+ 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 start up"
+ default y if ARM || M68K || MIPS || PPC || SPARC || 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.
+
+source "common/spl/Kconfig"