Convert CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE to Kconfig

[u-boot] / common / Kconfig

diff --git a/common/Kconfig b/common/Kconfig
index 9d446bf86b01116956d5b612047c23be738cbc8a..69d09ec7628f3b063af46aeecbc553b9be028f22 100644 (file)
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -1,522 +1,3 @@
-menu "Command line interface"
-
-config HUSH_PARSER
-       bool "Use hush shell"
-       select SYS_HUSH_PARSER
-       help
-         This option enables the "hush" shell (from Busybox) as command line
-         interpreter, thus enabling powerful command line syntax like
-         if...then...else...fi conditionals or `&&' and '||'
-         constructs ("shell scripts").
-
-         If disabled, you get the old, much simpler behaviour with a somewhat
-         smaller memory footprint.
-
-config SYS_HUSH_PARSER
-       bool
-       help
-         Backward compatibility.
-
-config SYS_PROMPT
-       string "Shell prompt"
-       default "=> "
-       help
-         This string is displayed in the command line to the left of the
-         cursor.
-
-menu "Autoboot options"
-
-config AUTOBOOT_KEYED
-       bool "Stop autobooting via specific input key / string"
-       default n
-       help
-         This option enables stopping (aborting) of the automatic
-         boot feature only by issuing a specific input key or
-         string. If not enabled, any input key will abort the
-         U-Boot automatic booting process and bring the device
-         to the U-Boot prompt for user input.
-
-config AUTOBOOT_PROMPT
-       string "Autoboot stop prompt"
-       depends on AUTOBOOT_KEYED
-       default "Autoboot in %d seconds\\n"
-       help
-         This string is displayed before the boot delay selected by
-         CONFIG_BOOTDELAY starts. If it is not defined there is no
-         output indicating that autoboot is in progress.
-
-         Note that this define is used as the (only) argument to a
-         printf() call, so it may contain '%' format specifications,
-         provided that it also includes, sepearated by commas exactly
-         like in a printf statement, the required arguments. It is
-         the responsibility of the user to select only such arguments
-         that are valid in the given context.
-
-config AUTOBOOT_ENCRYPTION
-       bool "Enable encryption in autoboot stopping"
-       depends on AUTOBOOT_KEYED
-       default n
-
-config AUTOBOOT_DELAY_STR
-       string "Delay autobooting via specific input key / string"
-       depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
-       help
-         This option delays the automatic boot feature by issuing
-         a specific input key or string. If CONFIG_AUTOBOOT_DELAY_STR
-         or the environment variable "bootdelaykey" is specified
-         and this string is received from console input before
-         autoboot starts booting, U-Boot gives a command prompt. The
-         U-Boot prompt will time out if CONFIG_BOOT_RETRY_TIME is
-         used, otherwise it never times out.
-
-config AUTOBOOT_STOP_STR
-       string "Stop autobooting via specific input key / string"
-       depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
-       help
-         This option enables stopping (aborting) of the automatic
-         boot feature only by issuing a specific input key or
-         string. If CONFIG_AUTOBOOT_STOP_STR or the environment
-         variable "bootstopkey" is specified and this string is
-         received from console input before autoboot starts booting,
-         U-Boot gives a command prompt. The U-Boot prompt never
-         times out, even if CONFIG_BOOT_RETRY_TIME is used.
-
-config AUTOBOOT_KEYED_CTRLC
-       bool "Enable Ctrl-C autoboot interruption"
-       depends on AUTOBOOT_KEYED && !AUTOBOOT_ENCRYPTION
-       default n
-       help
-         This option allows for the boot sequence to be interrupted
-         by ctrl-c, in addition to the "bootdelaykey" and "bootstopkey".
-         Setting this variable provides an escape sequence from the
-         limited "password" strings.
-
-config AUTOBOOT_STOP_STR_SHA256
-       string "Stop autobooting via SHA256 encrypted password"
-       depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION
-       help
-         This option adds the feature to only stop the autobooting,
-         and therefore boot into the U-Boot prompt, when the input
-         string / password matches a values that is encypted via
-         a SHA256 hash and saved in the environment.
-
-endmenu
-
-comment "Commands"
-
-menu "Info commands"
-
-config CMD_BDI
-       bool "bdinfo"
-       default y
-       help
-         Print board info
-
-config CMD_CONSOLE
-       bool "coninfo"
-       default y
-       help
-         Print console devices and information.
-
-config CMD_CPU
-       bool "cpu"
-       help
-         Print information about available CPUs. This normally shows the
-         number of CPUs, type (e.g. manufacturer, architecture, product or
-         internal name) and clock frequency. Other information may be
-         available depending on the CPU driver.
-
-config CMD_LICENSE
-       bool "license"
-       help
-         Print GPL license text
-
-endmenu
-
-menu "Boot commands"
-
-config CMD_BOOTD
-       bool "bootd"
-       default y
-       help
-         Run the command stored in the environment "bootcmd", i.e.
-         "bootd" does the same thing as "run bootcmd".
-
-config CMD_BOOTM
-       bool "bootm"
-       default y
-       help
-         Boot an application image from the memory.
-
-config CMD_ELF
-       bool "bootelf, bootvx"
-       default y
-       help
-         Boot an ELF/vxWorks image from the memory.
-
-config CMD_GO
-       bool "go"
-       default y
-       help
-         Start an application at a given address.
-
-config CMD_RUN
-       bool "run"
-       default y
-       help
-         Run the command in the given environment variable.
-
-config CMD_IMI
-       bool "iminfo"
-       default y
-       help
-         Print header information for application image.
-
-config CMD_IMLS
-       bool "imls"
-       default y
-       help
-         List all images found in flash
-
-config CMD_XIMG
-       bool "imxtract"
-       default y
-       help
-         Extract a part of a multi-image.
-
-config CMD_POWEROFF
-       bool
-
-endmenu
-
-menu "Environment commands"
-
-config CMD_EXPORTENV
-       bool "env export"
-       default y
-       help
-         Export environments.
-
-config CMD_IMPORTENV
-       bool "env import"
-       default y
-       help
-         Import environments.
-
-config CMD_EDITENV
-       bool "editenv"
-       default y
-       help
-         Edit environment variable.
-
-config CMD_SAVEENV
-       bool "saveenv"
-       default y
-       help
-         Save all environment variables into the compiled-in persistent
-         storage.
-
-config CMD_ENV_EXISTS
-       bool "env exists"
-       default y
-       help
-         Check if a variable is defined in the environment for use in
-         shell scripting.
-
-endmenu
-
-menu "Memory commands"
-
-config CMD_MEMORY
-       bool "md, mm, nm, mw, cp, cmp, base, loop"
-       default y
-       help
-         Memeory commands.
-           md - memory display
-           mm - memory modify (auto-incrementing address)
-           nm - memory modify (constant address)
-           mw - memory write (fill)
-           cp - memory copy
-           cmp - memory compare
-           base - print or set address offset
-           loop - initinite loop on address range
-
-config CMD_CRC32
-       bool "crc32"
-       default y
-       help
-         Compute CRC32.
-
-config LOOPW
-       bool "loopw"
-       help
-         Infinite write loop on address range
-
-config CMD_MEMTEST
-       bool "memtest"
-       help
-         Simple RAM read/write test.
-
-config CMD_MX_CYCLIC
-       bool "mdc, mwc"
-       help
-         mdc - memory display cyclic
-         mwc - memory write cyclic
-
-config CMD_MEMINFO
-       bool "meminfo"
-       help
-         Display memory information.
-
-endmenu
-
-menu "Device access commands"
-
-config CMD_DM
-       bool "dm - Access to driver model information"
-       depends on DM
-       default y
-       help
-         Provides access to driver model data structures and information,
-         such as a list of devices, list of uclasses and the state of each
-         device (e.g. activated). This is not required for operation, but
-         can be useful to see the state of driver model for debugging or
-         interest.
-
-config CMD_DEMO
-       bool "demo - Demonstration commands for driver model"
-       depends on DM
-       help
-         Provides a 'demo' command which can be used to play around with
-         driver model. To use this properly you will need to enable one or
-         both of the demo devices (DM_DEMO_SHAPE and DM_DEMO_SIMPLE).
-         Otherwise you will always get an empty list of devices. The demo
-         devices are defined in the sandbox device tree, so the easiest
-         option is to use sandbox and pass the -d point to sandbox's
-         u-boot.dtb file.
-
-config CMD_LOADB
-       bool "loadb"
-       default y
-       help
-         Load a binary file over serial line.
-
-config CMD_LOADS
-       bool "loads"
-       default y
-       help
-         Load an S-Record file over serial line
-
-config CMD_FLASH
-       bool "flinfo, erase, protect"
-       default y
-       help
-         NOR flash support.
-           flinfo - print FLASH memory information
-           erase - FLASH memory
-           protect - enable or disable FLASH write protection
-
-config CMD_ARMFLASH
-       depends on FLASH_CFI_DRIVER
-       bool "armflash"
-       help
-         ARM Ltd reference designs flash partition access
-
-config CMD_NAND
-       bool "nand"
-       help
-         NAND support.
-
-config CMD_SF
-       bool "sf"
-       help
-         SPI Flash support
-
-config CMD_SPI
-       bool "sspi"
-       help
-         SPI utility command.
-
-config CMD_I2C
-       bool "i2c"
-       help
-         I2C support.
-
-config CMD_USB
-       bool "usb"
-       help
-         USB support.
-
-config CMD_FPGA
-       bool "fpga"
-       default y
-       help
-         FPGA support.
-
-config CMD_REMOTEPROC
-       bool "remoteproc"
-       depends on REMOTEPROC
-       help
-         Support for Remote Processor control
-
-config CMD_GPIO
-       bool "gpio"
-       help
-         GPIO support.
-
-endmenu
-
-
-menu "Shell scripting commands"
-
-config CMD_ECHO
-       bool "echo"
-       default y
-       help
-         Echo args to console
-
-config CMD_ITEST
-       bool "itest"
-       default y
-       help
-         Return true/false on integer compare.
-
-config CMD_SOURCE
-       bool "source"
-       default y
-       help
-         Run script from memory
-
-config CMD_SETEXPR
-       bool "setexpr"
-       default y
-       help
-         Evaluate boolean and math expressions and store the result in an env
-           variable.
-         Also supports loading the value at a memory location into a variable.
-         If CONFIG_REGEX is enabled, setexpr also supports a gsub function.
-
-endmenu
-
-menu "Network commands"
-
-config CMD_NET
-       bool "bootp, tftpboot"
-        select NET
-       default y
-       help
-         Network commands.
-         bootp - boot image via network using BOOTP/TFTP protocol
-         tftpboot - boot image via network using TFTP protocol
-
-config CMD_TFTPPUT
-       bool "tftp put"
-       help
-         TFTP put command, for uploading files to a server
-
-config CMD_TFTPSRV
-       bool "tftpsrv"
-       help
-         Act as a TFTP server and boot the first received file
-
-config CMD_RARP
-       bool "rarpboot"
-       help
-         Boot image via network using RARP/TFTP protocol
-
-config CMD_DHCP
-       bool "dhcp"
-       help
-         Boot image via network using DHCP/TFTP protocol
-
-config CMD_NFS
-       bool "nfs"
-       default y
-       help
-         Boot image via network using NFS protocol.
-
-config CMD_PING
-       bool "ping"
-       help
-         Send ICMP ECHO_REQUEST to network host
-
-config CMD_CDP
-       bool "cdp"
-       help
-         Perform CDP network configuration
-
-config CMD_SNTP
-       bool "sntp"
-       help
-         Synchronize RTC via network
-
-config CMD_DNS
-       bool "dns"
-       help
-         Lookup the IP of a hostname
-
-config CMD_LINK_LOCAL
-       bool "linklocal"
-       help
-         Acquire a network IP address using the link-local protocol
-
-endmenu
-
-menu "Misc commands"
-
-config CMD_AMBAPP
-       bool "ambapp"
-       depends on LEON3
-       default y
-       help
-         Lists AMBA Plug-n-Play information.
-
-config SYS_AMBAPP_PRINT_ON_STARTUP
-       bool "Show AMBA PnP info on startup"
-       depends on CMD_AMBAPP
-       default n
-       help
-         Show AMBA Plug-n-Play information on startup.
-
-config CMD_TIME
-       bool "time"
-       help
-         Run commands and summarize execution time.
-
-# TODO: rename to CMD_SLEEP
-config CMD_MISC
-       bool "sleep"
-       default y
-       help
-         Delay execution for some time
-
-config CMD_TIMER
-       bool "timer"
-       help
-         Access the system timer.
-
-config CMD_SETGETDCR
-       bool "getdcr, setdcr, getidcr, setidcr"
-       depends on 4xx
-       default y
-       help
-         getdcr - Get an AMCC PPC 4xx DCR's value
-         setdcr - Set an AMCC PPC 4xx DCR's value
-         getidcr - Get a register value via indirect DCR addressing
-         setidcr - Set a register value via indirect DCR addressing
-
-config CMD_SOUND
-       bool "sound"
-       depends on SOUND
-       help
-         This provides basic access to the U-Boot's sound support. The main
-         feature is to play a beep.
-
-            sound init   - set up sound system
-            sound play   - play a sound
-
-endmenu
-

 menu "Boot timing"
 
 config BOOTSTAGE
 menu "Boot timing"
 
 config BOOTSTAGE


@@ -528,13 +9,13 @@ config BOOTSTAGE
          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
          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 accumated time and report it.
+         add up all the accumulated time and report it.

 
          Normally, IDs are defined in bootstage.h but a small number of
 
          Normally, IDs are defined in bootstage.h but a small number of

-         additional 'user' IDs can be used but passing BOOTSTAGE_ID_ALLOC
+         additional 'user' IDs can be used by passing BOOTSTAGE_ID_ALLOC

          as the ID.
 
          as the ID.
 

-         Calls to show_boot_progress() wil also result in log entries but
+         Calls to show_boot_progress() will also result in log entries but

          these will not have names.
 
 config BOOTSTAGE_REPORT
          these will not have names.
 
 config BOOTSTAGE_REPORT


@@ -565,13 +46,6 @@ config BOOTSTAGE_USER_COUNT
          a new ID will be allocated from this stash. If you exceed
          the limit, recording will stop.
 
          a new ID will be allocated from this stash. If you exceed
          the limit, recording will stop.
 

-config CMD_BOOTSTAGE
-       bool "Enable the 'bootstage' command"
-       depends on BOOTSTAGE
-       help
-         Add a 'bootstage' command which supports printing a report
-         and un/stashing of bootstage data.
-

 config BOOTSTAGE_FDT
        bool "Store boot timing information in the OS device tree"
        depends on BOOTSTAGE
 config BOOTSTAGE_FDT
        bool "Store boot timing information in the OS device tree"
        depends on BOOTSTAGE


@@ -579,7 +53,7 @@ config BOOTSTAGE_FDT
          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
          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 microsecond, or 'accum' containing the
+         mark time in microseconds, or 'accum' containing the

          accumulated time for that bootstage id in microseconds.
          For example:
 
          accumulated time for that bootstage id in microseconds.
          For example:
 


@@ -623,71 +97,86 @@ config BOOTSTAGE_STASH_SIZE
 
 endmenu
 
 
 endmenu
 

-menu "Power commands"
-config CMD_PMIC
-       bool "Enable Driver Model PMIC command"
-       depends on DM_PMIC
-       help
-         This is the pmic command, based on a driver model pmic's API.
-         Command features are unchanged:
-         - list               - list pmic devices
-         - pmic dev <id>      - show or [set] operating pmic device (NEW)
-         - pmic dump          - dump registers
-         - pmic read address  - read byte of register at address
-         - pmic write address - write byte to register at address
-         The only one change for this command is 'dev' subcommand.
-
-config CMD_REGULATOR
-       bool "Enable Driver Model REGULATOR command"
-       depends on DM_REGULATOR
-       help
-         This command is based on driver model regulator's API.
-         User interface features:
-         - list               - list regulator devices
-         - regulator dev <id> - show or [set] operating regulator device
-         - regulator info     - print constraints info
-         - regulator status   - print operating status
-         - regulator value <val] <-f> - print/[set] voltage value [uV]
-         - regulator current <val>    - print/[set] current value [uA]
-         - regulator mode <id>        - print/[set] operating mode id
-         - regulator enable           - enable the regulator output
-         - regulator disable          - disable the regulator output
-
-         The '-f' (force) option can be used for set the value which exceeds
-         the limits, which are found in device-tree and are kept in regulator's
-         uclass platdata structure.
+menu "Boot media"

 
 

-endmenu
+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.

 
 

-menu "Security commands"
-config CMD_TPM
-       bool "Enable the 'tpm' command"
-       depends on TPM
+config ONENAND_BOOT
+       bool "Support for booting from ONENAND"
+       default n

        help
        help

-         This provides a means to talk to a TPM from the command line. A wide
-         range of commands if provided - see 'tpm help' for details. The
-         command requires a suitable TPM on your board and the correct driver
-         must be enabled.
+         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 CMD_TPM_TEST
-       bool "Enable the 'tpm test' command"
-       depends on CMD_TPM
+config QSPI_BOOT
+       bool "Support for booting from QSPI flash"
+       default n

        help
        help

-         This provides a a series of tests to confirm that the TPM is working
-         correctly. The tests cover initialisation, non-volatile RAM, extend,
-         global lock and checking that timing is within expectations. The
-         tests pass correctly on Infineon TPMs but may need to be adjusted
-         for other devices.
+         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.

 
 

-endmenu
+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
 
 
 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 CONSOLE_RECORD
        bool "Console recording"
        help
          This provides a way to record console output (and provide console
 config CONSOLE_RECORD
        bool "Console recording"
        help
          This provides a way to record console output (and provide console

-         input) through cirular buffers. This is mostly useful for testing.
+         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.
          Console output is recorded even when the console is silent.
          To enable console recording, call console_record_reset_enable()
          from your code.


@@ -710,3 +199,166 @@ config CONSOLE_RECORD_IN_SIZE
          tstc() and getc() will use this in preference to real device input.
          The buffer is allocated immediately after the malloc() region is
          ready.
          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
+         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.
+
+endmenu
+
+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"