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https://github.com/brain-hackers/u-boot-brain
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![Joel Peshkin](/assets/img/avatar_default.png)
Add support for stack protector for UBOOT, SPL, and TPL as well as new pytest for stackprotector Signed-off-by: Joel Peshkin <joel.peshkin@broadcom.com> Adjust UEFI build flags. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
763 lines
24 KiB
Plaintext
763 lines
24 KiB
Plaintext
source "common/Kconfig.boot"
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menu "Console"
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config MENU
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bool
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help
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This is the library functionality to provide a text-based menu of
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choices for the user to make choices with.
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config CONSOLE_RECORD
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bool "Console recording"
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help
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This provides a way to record console output (and provide console
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input) through circular buffers. This is mostly useful for testing.
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Console output is recorded even when the console is silent.
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To enable console recording, call console_record_reset_enable()
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from your code.
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config CONSOLE_RECORD_INIT_F
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bool "Enable console recording during pre-relocation init"
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depends on CONSOLE_RECORD && SYS_MALLOC_F
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default y
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help
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This option enables console recording during pre-relocation init.
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CONFIG_SYS_MALLOC_F must be enabled to use this feature.
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config CONSOLE_RECORD_OUT_SIZE
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hex "Output buffer size"
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depends on CONSOLE_RECORD
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default 0x400 if CONSOLE_RECORD
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help
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Set the size of the console output buffer. When this fills up, no
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more data will be recorded until some is removed. The buffer is
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allocated immediately after the malloc() region is ready.
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config CONSOLE_RECORD_IN_SIZE
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hex "Input buffer size"
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depends on CONSOLE_RECORD
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default 0x100 if CONSOLE_RECORD
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help
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Set the size of the console input buffer. When this contains data,
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tstc() and getc() will use this in preference to real device input.
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The buffer is allocated immediately after the malloc() region is
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ready.
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config DISABLE_CONSOLE
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bool "Add functionality to disable console completely"
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help
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Disable console (in & out).
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config IDENT_STRING
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string "Board specific string to be added to uboot version string"
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help
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This options adds the board specific name to u-boot version.
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config LOGLEVEL
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int "loglevel"
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default 4
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range 0 10
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help
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All Messages with a loglevel smaller than the console loglevel will
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be compiled in. The loglevels are defined as follows:
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0 - emergency
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1 - alert
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2 - critical
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3 - error
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4 - warning
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5 - note
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6 - info
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7 - debug
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8 - debug content
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9 - debug hardware I/O
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config SPL_LOGLEVEL
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int
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default LOGLEVEL
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config TPL_LOGLEVEL
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int
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default LOGLEVEL
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config SILENT_CONSOLE
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bool "Support a silent console"
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help
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This option allows the console to be silenced, meaning that no
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output will appear on the console devices. This is controlled by
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setting the environment variable 'silent' to a non-empty value.
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Note this also silences the console when booting Linux.
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When the console is set up, the variable is checked, and the
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GD_FLG_SILENT flag is set. Changing the environment variable later
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will update the flag.
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config SILENT_U_BOOT_ONLY
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bool "Only silence the U-Boot console"
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depends on SILENT_CONSOLE
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help
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Normally when the U-Boot console is silenced, Linux's console is
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also silenced (assuming the board boots into Linux). This option
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allows the linux console to operate normally, even if U-Boot's
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is silenced.
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config SILENT_CONSOLE_UPDATE_ON_SET
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bool "Changes to the 'silent' environment variable update immediately"
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depends on SILENT_CONSOLE
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default y if SILENT_CONSOLE
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help
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When the 'silent' environment variable is changed, update the
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console silence flag immediately. This allows 'setenv' to be used
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to silence or un-silence the console.
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The effect is that any change to the variable will affect the
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GD_FLG_SILENT flag.
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config SILENT_CONSOLE_UPDATE_ON_RELOC
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bool "Allow flags to take effect on relocation"
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depends on SILENT_CONSOLE
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help
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In some cases the environment is not available until relocation
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(e.g. NAND). This option makes the value of the 'silent'
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environment variable take effect at relocation.
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config PRE_CONSOLE_BUFFER
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bool "Buffer characters before the console is available"
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help
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Prior to the console being initialised (i.e. serial UART
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initialised etc) all console output is silently discarded.
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Defining CONFIG_PRE_CONSOLE_BUFFER will cause U-Boot to
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buffer any console messages prior to the console being
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initialised to a buffer. The buffer is a circular buffer, so
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if it overflows, earlier output is discarded.
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Note that this is not currently supported in SPL. It would be
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useful to be able to share the pre-console buffer with SPL.
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config PRE_CON_BUF_SZ
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int "Sets the size of the pre-console buffer"
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depends on PRE_CONSOLE_BUFFER
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default 4096
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help
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The size of the pre-console buffer affects how much console output
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can be held before it overflows and starts discarding earlier
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output. Normally there is very little output at this early stage,
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unless debugging is enabled, so allow enough for ~10 lines of
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text.
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This is a useful feature if you are using a video console and
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want to see the full boot output on the console. Without this
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option only the post-relocation output will be displayed.
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config PRE_CON_BUF_ADDR
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hex "Address of the pre-console buffer"
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depends on PRE_CONSOLE_BUFFER
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default 0x2f000000 if ARCH_SUNXI && MACH_SUN9I
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default 0x4f000000 if ARCH_SUNXI && !MACH_SUN9I
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default 0x0f000000 if ROCKCHIP_RK3288
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default 0x0f200000 if ROCKCHIP_RK3399
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help
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This sets the start address of the pre-console buffer. This must
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be in available memory and is accessed before relocation and
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possibly before DRAM is set up. Therefore choose an address
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carefully.
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We should consider removing this option and allocating the memory
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in board_init_f_init_reserve() instead.
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config CONSOLE_MUX
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bool "Enable console multiplexing"
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default y if DM_VIDEO || VIDEO || LCD
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help
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This allows multiple devices to be used for each console 'file'.
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For example, stdout can be set to go to serial and video.
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Similarly, stdin can be set to come from serial and keyboard.
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Input can be provided from either source. Console multiplexing
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adds a small amount of size to U-Boot. Changes to the environment
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variables stdout, stdin and stderr will take effect immediately.
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config SYS_CONSOLE_IS_IN_ENV
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bool "Select console devices from the environment"
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default y if CONSOLE_MUX
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help
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This allows multiple input/output devices to be set at boot time.
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For example, if stdout is set to "serial,video" then output will
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be sent to both the serial and video devices on boot. The
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environment variables can be updated after boot to change the
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input/output devices.
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config SYS_CONSOLE_OVERWRITE_ROUTINE
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bool "Allow board control over console overwriting"
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help
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If this is enabled, and the board-specific function
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overwrite_console() returns 1, the stdin, stderr and stdout are
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switched to the serial port, else the settings in the environment
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are used. If this is not enabled, the console will not be switched
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to serial.
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config SYS_CONSOLE_ENV_OVERWRITE
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bool "Update environment variables during console init"
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help
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The console environment variables (stdout, stdin, stderr) can be
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used to determine the correct console devices on start-up. This
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option writes the console devices to these variables on console
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start-up (after relocation). This causes the environment to be
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updated to match the console devices actually chosen.
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config SYS_CONSOLE_INFO_QUIET
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bool "Don't display the console devices on boot"
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help
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Normally U-Boot displays the current settings for stdout, stdin
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and stderr on boot when the post-relocation console is set up.
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Enable this option to suppress this output. It can be obtained by
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calling stdio_print_current_devices() from board code.
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config SYS_STDIO_DEREGISTER
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bool "Allow deregistering stdio devices"
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default y if USB_KEYBOARD
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help
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Generally there is no need to deregister stdio devices since they
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are never deactivated. But if a stdio device is used which can be
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removed (for example a USB keyboard) then this option can be
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enabled to ensure this is handled correctly.
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config SPL_SYS_STDIO_DEREGISTER
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bool "Allow deregistering stdio devices in SPL"
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help
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Generally there is no need to deregister stdio devices since they
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are never deactivated. But if a stdio device is used which can be
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removed (for example a USB keyboard) then this option can be
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enabled to ensure this is handled correctly. This is very rarely
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needed in SPL.
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config SYS_DEVICE_NULLDEV
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bool "Enable a null device for stdio"
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default y if SPLASH_SCREEN || SYS_STDIO_DEREGISTER
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help
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Enable creation of a "nulldev" stdio device. This allows silent
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operation of the console by setting stdout to "nulldev". Enable
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this to use a serial console under board control.
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endmenu
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menu "Logging"
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config LOG
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bool "Enable logging support"
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depends on DM
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help
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This enables support for logging of status and debug messages. These
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can be displayed on the console, recorded in a memory buffer, or
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discarded if not needed. Logging supports various categories and
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levels of severity.
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if LOG
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config LOG_MAX_LEVEL
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int "Maximum log level to record"
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default 6
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range 0 9
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help
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This selects the maximum log level that will be recorded. Any value
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higher than this will be ignored. If possible log statements below
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this level will be discarded at build time. Levels:
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0 - emergency
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1 - alert
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2 - critical
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3 - error
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4 - warning
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5 - note
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6 - info
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7 - debug
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8 - debug content
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9 - debug hardware I/O
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config LOG_DEFAULT_LEVEL
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int "Default logging level to display"
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default LOG_MAX_LEVEL
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range 0 LOG_MAX_LEVEL
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help
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This is the default logging level set when U-Boot starts. It can
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be adjusted later using the 'log level' command. Note that setting
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this to a value above LOG_MAX_LEVEL will be ineffective, since the
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higher levels are not compiled in to U-Boot.
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0 - emergency
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1 - alert
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2 - critical
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3 - error
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4 - warning
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5 - note
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6 - info
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7 - debug
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8 - debug content
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9 - debug hardware I/O
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config LOG_CONSOLE
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bool "Allow log output to the console"
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default y
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help
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Enables a log driver which writes log records to the console.
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Generally the console is the serial port or LCD display. Only the
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log message is shown - other details like level, category, file and
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line number are omitted.
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config LOGF_FILE
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bool "Show source file name in log messages by default"
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help
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Show the source file name in log messages by default. This value
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can be overridden using the 'log format' command.
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config LOGF_LINE
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bool "Show source line number in log messages by default"
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help
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Show the source line number in log messages by default. This value
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can be overridden using the 'log format' command.
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config LOGF_FUNC
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bool "Show function name in log messages by default"
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help
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Show the function name in log messages by default. This value can
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be overridden using the 'log format' command.
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config LOG_SYSLOG
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bool "Log output to syslog server"
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depends on NET
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help
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Enables a log driver which broadcasts log records via UDP port 514
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to syslog servers.
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config SPL_LOG
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bool "Enable logging support in SPL"
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depends on LOG
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help
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This enables support for logging of status and debug messages. These
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can be displayed on the console, recorded in a memory buffer, or
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discarded if not needed. Logging supports various categories and
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levels of severity.
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if SPL_LOG
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config SPL_LOG_MAX_LEVEL
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int "Maximum log level to record in SPL"
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depends on SPL_LOG
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default 3
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range 0 9
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help
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This selects the maximum log level that will be recorded. Any value
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higher than this will be ignored. If possible log statements below
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this level will be discarded at build time. Levels:
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0 - emergency
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1 - alert
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2 - critical
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3 - error
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4 - warning
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5 - note
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6 - info
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7 - debug
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8 - debug content
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9 - debug hardware I/O
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config SPL_LOG_CONSOLE
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bool "Allow log output to the console in SPL"
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default y
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help
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Enables a log driver which writes log records to the console.
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Generally the console is the serial port or LCD display. Only the
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log message is shown - other details like level, category, file and
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line number are omitted.
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endif
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config TPL_LOG
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bool "Enable logging support in TPL"
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depends on LOG
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help
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This enables support for logging of status and debug messages. These
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can be displayed on the console, recorded in a memory buffer, or
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discarded if not needed. Logging supports various categories and
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levels of severity.
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if TPL_LOG
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config TPL_LOG_MAX_LEVEL
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int "Maximum log level to record in TPL"
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depends on TPL_LOG
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default 3
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range 0 9
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help
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This selects the maximum log level that will be recorded. Any value
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higher than this will be ignored. If possible log statements below
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this level will be discarded at build time. Levels:
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0 - emergency
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1 - alert
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2 - critical
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3 - error
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4 - warning
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5 - note
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6 - info
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7 - debug
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8 - debug content
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9 - debug hardware I/O
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config TPL_LOG_CONSOLE
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bool "Allow log output to the console in TPL"
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default y
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help
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Enables a log driver which writes log records to the console.
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Generally the console is the serial port or LCD display. Only the
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log message is shown - other details like level, category, file and
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line number are omitted.
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endif
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config LOG_ERROR_RETURN
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bool "Log all functions which return an error"
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help
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When an error is returned in U-Boot it is sometimes difficult to
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figure out the root cause. For example, reading from SPI flash may
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fail due to a problem in the SPI controller or due to the flash part
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not returning the expected information. This option changes
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log_ret() to log any errors it sees. With this option disabled,
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log_ret() is a nop.
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You can add log_ret() to all functions which return an error code.
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config LOG_TEST
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bool "Provide a test for logging"
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depends on UNIT_TEST
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default y if SANDBOX
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help
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This enables a 'log test' command to test logging. It is normally
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executed from a pytest and simply outputs logging information
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in various different ways to test that the logging system works
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correctly with various settings.
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endif
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endmenu
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menu "Init options"
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config BOARD_TYPES
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bool "Call get_board_type() to get and display the board type"
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help
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If this option is enabled, checkboard() will call get_board_type()
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to get a string containing the board type and this will be
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displayed immediately after the model is shown on the console
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early in boot.
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config DISPLAY_CPUINFO
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bool "Display information about the CPU during start up"
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default y if ARC|| ARM || NIOS2 || X86 || XTENSA || M68K
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help
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Display information about the CPU that U-Boot is running on
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when U-Boot starts up. The function print_cpuinfo() is called
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to do this.
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config DISPLAY_BOARDINFO
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bool "Display information about the board during early start up"
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default y if ARC || ARM || M68K || MIPS || PPC || SANDBOX || XTENSA
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help
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Display information about the board that U-Boot is running on
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when U-Boot starts up. The board function checkboard() is called
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to do this.
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config DISPLAY_BOARDINFO_LATE
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bool "Display information about the board during late start up"
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help
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Display information about the board that U-Boot is running on after
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the relocation phase. The board function checkboard() is called to do
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this.
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menu "Start-up hooks"
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config ARCH_EARLY_INIT_R
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bool "Call arch-specific init soon after relocation"
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help
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With this option U-Boot will call arch_early_init_r() soon after
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relocation. Driver model is running by this point, and the cache
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is on. Note that board_early_init_r() is called first, if
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enabled. This can be used to set up architecture-specific devices.
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config ARCH_MISC_INIT
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bool "Call arch-specific init after relocation, when console is ready"
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help
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With this option U-Boot will call arch_misc_init() after
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relocation to allow miscellaneous arch-dependent initialisation
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to be performed. This function should be defined by the board
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and will be called after the console is set up, after relocation.
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config BOARD_EARLY_INIT_F
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bool "Call board-specific init before relocation"
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help
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Some boards need to perform initialisation as soon as possible
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after boot. With this option, U-Boot calls board_early_init_f()
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after driver model is ready in the pre-relocation init sequence.
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Note that the normal serial console is not yet set up, but the
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debug UART will be available if enabled.
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config BOARD_EARLY_INIT_R
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bool "Call board-specific init after relocation"
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help
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Some boards need to perform initialisation as directly after
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relocation. With this option, U-Boot calls board_early_init_r()
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in the post-relocation init sequence.
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config BOARD_LATE_INIT
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bool "Execute Board late init"
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help
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Sometimes board require some initialization code that might
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require once the actual init done, example saving board specific env,
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boot-modes etc. which eventually done at late.
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So this config enable the late init code with the help of board_late_init
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function which should defined on respective boards.
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config LAST_STAGE_INIT
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bool "Call board-specific as last setup step"
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help
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Some boards need to perform initialisation immediately before control
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is passed to the command-line interpreter (e.g. for initializations
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that depend on later phases in the init sequence). With this option,
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U-Boot calls last_stage_init() before the command-line interpreter is
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started.
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config MISC_INIT_F
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bool "Execute pre-relocation misc init"
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help
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Enabling this option calls the 'misc_init_f' function in the init
|
|
sequence just before DRAM is inited.
|
|
|
|
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 PCI_INIT_R
|
|
bool "Enumerate PCI buses during init"
|
|
depends on PCI
|
|
default y if !DM_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.
|
|
|
|
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"
|
|
default n
|
|
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
|
|
default n
|
|
|
|
config TPL_STACKPROTECTOR
|
|
bool "Stack Protector buffer overflow detection for TPL"
|
|
depends on STACKPROTECTOR && TPL
|
|
default n
|
|
|
|
endmenu
|
|
|
|
menu "Update support"
|
|
|
|
config UPDATE_COMMON
|
|
bool
|
|
default n
|
|
select DFU_WRITE_ALT
|
|
|
|
config UPDATE_TFTP
|
|
bool "Auto-update using fitImage via TFTP"
|
|
depends on FIT
|
|
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
|
|
|
|
config UPDATE_TFTP_MSEC_MAX
|
|
int "Delay in mSec to wait for the TFTP server during auto-update"
|
|
default 100
|
|
depends on UPDATE_TFTP
|
|
|
|
config UPDATE_FIT
|
|
bool "Firmware update using fitImage"
|
|
depends on FIT
|
|
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"
|
|
default n
|
|
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.
|
|
|
|
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 stage of the boot.
|
|
|
|
config SPL_BLOBLIST
|
|
bool "Support for a bloblist in SPL"
|
|
depends on BLOBLIST
|
|
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
|
|
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 BLOBLIST_SIZE
|
|
hex "Size of bloblist"
|
|
depends on 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 stages.
|
|
|
|
config BLOBLIST_ADDR
|
|
hex "Address of bloblist"
|
|
depends on BLOBLIST
|
|
default 0xe000 if SANDBOX
|
|
help
|
|
Sets the address of the bloblist, set up by the first part of U-Boot
|
|
which runs. Subsequent U-Boot stages typically use the same address.
|
|
|
|
config BLOBLIST_SIZE_RELOC
|
|
hex "Size of bloblist after relocation"
|
|
depends on BLOBLIST
|
|
default BLOBLIST_SIZE
|
|
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.
|
|
|
|
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.
|
|
|
|
endif
|