mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-28 21:09:00 +09:00
![Tom Rini](/assets/img/avatar_default.png)
We first introduce CONFIG_USE_BOOTCOMMAND, similar to CONFIG_USE_BOOTARGS. We then migrate CONFIG_BOOTCOMMAND for most CONFIG_DISTRO_DEFAULT users. In some cases platforms have a complex scheme around this usage, and these have been defered for the moment so that platform maintainers can work on a migration plan. Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Lukasz Majewski <lukma@denx.de>
506 lines
17 KiB
Plaintext
506 lines
17 KiB
Plaintext
menu "Boot timing"
|
|
|
|
config BOOTSTAGE
|
|
bool "Boot timing and reporting"
|
|
help
|
|
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.
|
|
|
|
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 SPL_BOOTSTAGE
|
|
bool "Boot timing and reported in SPL"
|
|
depends on BOOTSTAGE
|
|
help
|
|
Enable recording of boot time in SPL. To make this visible to U-Boot
|
|
proper, enable BOOTSTAGE_STASH as well. This will stash the timing
|
|
information when SPL finishes and load it when U-Boot proper starts
|
|
up.
|
|
|
|
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_RECORD_COUNT
|
|
int "Number of boot stage records to store"
|
|
default 30
|
|
help
|
|
This is the size of the bootstage record list and is the maximum
|
|
number of bootstage records that can be recorded.
|
|
|
|
config SPL_BOOTSTAGE_RECORD_COUNT
|
|
int "Number of boot stage records to store for SPL"
|
|
default 5
|
|
help
|
|
This is the size of the bootstage record list and is the maximum
|
|
number of bootstage records that can be recorded.
|
|
|
|
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 0x1000
|
|
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.
|
|
|
|
config USE_BOOTARGS
|
|
bool "Enable boot arguments"
|
|
help
|
|
Provide boot arguments to bootm command. Boot arguments are specified
|
|
in CONFIG_BOOTARGS option. Enable this option to be able to specify
|
|
CONFIG_BOOTARGS string. If this option is disabled, CONFIG_BOOTARGS
|
|
will be undefined and won't take any space in U-Boot image.
|
|
|
|
config BOOTARGS
|
|
string "Boot arguments"
|
|
depends on USE_BOOTARGS
|
|
help
|
|
This can be used to pass arguments to the bootm command. The value of
|
|
CONFIG_BOOTARGS goes into the environment value "bootargs". Note that
|
|
this value will also override the "chosen" node in FDT blob.
|
|
|
|
config USE_BOOTCOMMAND
|
|
bool "Enable a default value for bootcmd"
|
|
help
|
|
Provide a default value for the bootcmd entry in the environment. If
|
|
autoboot is enabled this is what will be run automatically. Enable
|
|
this option to be able to specify CONFIG_BOOTCOMMAND as a string. If
|
|
this option is disabled, CONFIG_BOOTCOMMAND will be undefined and
|
|
won't take any space in U-Boot image.
|
|
|
|
config BOOTCOMMAND
|
|
string "bootcmd value"
|
|
depends on USE_BOOTCOMMAND
|
|
default "run distro_bootcmd" if DISTRO_DEFAULTS
|
|
help
|
|
This is the string of commands that will be used as bootcmd and if
|
|
AUTOBOOT is set, automatically run.
|
|
|
|
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 LOGLEVEL
|
|
int "loglevel"
|
|
default 4
|
|
range 0 8
|
|
help
|
|
All Messages with a loglevel smaller than the console loglevel will
|
|
be compiled in. The loglevels are defined as follows:
|
|
|
|
0 (KERN_EMERG) system is unusable
|
|
1 (KERN_ALERT) action must be taken immediately
|
|
2 (KERN_CRIT) critical conditions
|
|
3 (KERN_ERR) error conditions
|
|
4 (KERN_WARNING) warning conditions
|
|
5 (KERN_NOTICE) normal but significant condition
|
|
6 (KERN_INFO) informational
|
|
7 (KERN_DEBUG) debug-level messages
|
|
|
|
config SPL_LOGLEVEL
|
|
int
|
|
default LOGLEVEL
|
|
|
|
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
|
|
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 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
|
|
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_MUX
|
|
bool "Enable console multiplexing"
|
|
default y if DM_VIDEO || 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,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 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 BOARD_LATE_INIT
|
|
bool
|
|
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 DISPLAY_CPUINFO
|
|
bool "Display information about the CPU during start up"
|
|
default y if ARM || 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 || 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.
|
|
|
|
menu "Start-up hooks"
|
|
|
|
config ARCH_EARLY_INIT_R
|
|
bool "Call arch-specific init soon after relocation"
|
|
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 relocaiton.
|
|
|
|
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.
|
|
|
|
endmenu
|
|
|
|
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.
|
|
|
|
endmenu
|
|
|
|
source "common/spl/Kconfig"
|