kernel configuration options. The intention is to make it easier to
build a config tool - later.
+- ARM Platform Bus Type(CCI):
+ CoreLink Cache Coherent Interconnect (CCI) is ARM BUS which
+ provides full cache coherency between two clusters of multi-core
+ CPUs and I/O coherency for devices and I/O masters
+
+ CONFIG_SYS_FSL_HAS_CCI400
+
+ Defined For SoC that has cache coherent interconnect
+ CCN-400
+
+ CONFIG_SYS_FSL_HAS_CCN504
+
+ Defined for SoC that has cache coherent interconnect CCN-504
The following options need to be configured:
supported, core will start to execute uboot when wakes up.
- Generic CPU options:
- CONFIG_SYS_GENERIC_GLOBAL_DATA
- Defines global data is initialized in generic board board_init_f().
- If this macro is defined, global data is created and cleared in
- generic board board_init_f(). Without this macro, architecture/board
- should initialize global data before calling board_init_f().
-
CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
Defines the endianess of the CPU. Implementation of those
when no character is read on the console interface
within "Boot Delay" after reset.
- CONFIG_BOOTARGS
- This can be used to pass arguments to the bootm
- command. The value of CONFIG_BOOTARGS goes into the
- environment value "bootargs".
-
CONFIG_RAMBOOT and CONFIG_NFSBOOT
The value of these goes into the environment as
"ramboot" and "nfsboot" respectively, and can be used
Select one of the baudrates listed in
CONFIG_SYS_BAUDRATE_TABLE, see below.
-- Monitor Functions:
- Monitor commands can be included or excluded
- from the build by using the #include files
- <config_cmd_all.h> and #undef'ing unwanted
- commands, or adding #define's for wanted commands.
-
- The default command configuration includes all commands
- except those marked below with a "*".
-
- CONFIG_CMD_AES AES 128 CBC encrypt/decrypt
- CONFIG_CMD_ASKENV * ask for env variable
- CONFIG_CMD_BDI bdinfo
- CONFIG_CMD_BOOTD bootd
- CONFIG_CMD_BOOTI * ARM64 Linux kernel Image support
- CONFIG_CMD_CACHE * icache, dcache
- CONFIG_CMD_CONSOLE coninfo
- CONFIG_CMD_DHCP * DHCP support
- CONFIG_CMD_DIAG * Diagnostics
- CONFIG_CMD_ECHO echo arguments
- CONFIG_CMD_EDITENV edit env variable
- CONFIG_CMD_ELF * bootelf, bootvx
- CONFIG_CMD_ENV_EXISTS * check existence of env variable
- CONFIG_CMD_EXPORTENV * export the environment
- CONFIG_CMD_EXT2 * ext2 command support
- CONFIG_CMD_EXT4 * ext4 command support
- CONFIG_CMD_FS_GENERIC * filesystem commands (e.g. load, ls)
- that work for multiple fs types
- CONFIG_CMD_FS_UUID * Look up a filesystem UUID
- CONFIG_CMD_SAVEENV saveenv
- CONFIG_CMD_FLASH flinfo, erase, protect
- CONFIG_CMD_FPGA FPGA device initialization support
- CONFIG_CMD_GO * the 'go' command (exec code)
- CONFIG_CMD_GREPENV * search environment
- CONFIG_CMD_I2C * I2C serial bus support
- CONFIG_CMD_IMI iminfo
- CONFIG_CMD_IMLS List all images found in NOR flash
- CONFIG_CMD_IMLS_NAND * List all images found in NAND flash
- CONFIG_CMD_IMPORTENV * import an environment
- CONFIG_CMD_INI * import data from an ini file into the env
- CONFIG_CMD_ITEST Integer/string test of 2 values
- CONFIG_CMD_LDRINFO * ldrinfo (display Blackfin loader)
- CONFIG_CMD_LINK_LOCAL * link-local IP address auto-configuration
- (169.254.*.*)
- CONFIG_CMD_LOADB loadb
- CONFIG_CMD_LOADS loads
- CONFIG_CMD_MD5SUM * print md5 message digest
- (requires CONFIG_CMD_MEMORY and CONFIG_MD5)
- CONFIG_CMD_MEMINFO * Display detailed memory information
- CONFIG_CMD_MEMORY md, mm, nm, mw, cp, cmp, crc, base,
- loop, loopw
- CONFIG_CMD_MEMTEST * mtest
- CONFIG_CMD_MISC Misc functions like sleep etc
- CONFIG_CMD_MMC * MMC memory mapped support
- CONFIG_CMD_MII * MII utility commands
- CONFIG_CMD_NET bootp, tftpboot, rarpboot
- CONFIG_CMD_NFS NFS support
- CONFIG_CMD_PCA953X_INFO * PCA953x I2C gpio info command
- CONFIG_CMD_PCI * pciinfo
- CONFIG_CMD_PCMCIA * PCMCIA support
- CONFIG_CMD_PING * send ICMP ECHO_REQUEST to network
- host
- CONFIG_CMD_PORTIO * Port I/O
- CONFIG_CMD_READ * Read raw data from partition
- CONFIG_CMD_REGINFO * Register dump
- CONFIG_CMD_RUN run command in env variable
- CONFIG_CMD_SANDBOX * sb command to access sandbox features
- CONFIG_CMD_SAVES * save S record dump
- CONFIG_CMD_SDRAM * print SDRAM configuration information
- (requires CONFIG_CMD_I2C)
- CONFIG_CMD_SF * Read/write/erase SPI NOR flash
- CONFIG_CMD_SOFTSWITCH * Soft switch setting command for BF60x
- CONFIG_CMD_SOURCE "source" command Support
- CONFIG_CMD_SPI * SPI serial bus support
- CONFIG_CMD_TFTPSRV * TFTP transfer in server mode
- CONFIG_CMD_TFTPPUT * TFTP put command (upload)
- CONFIG_CMD_TIME * run command and report execution time (ARM specific)
- CONFIG_CMD_TIMER * access to the system tick timer
- CONFIG_CMD_USB * USB support
- CONFIG_CMD_CDP * Cisco Discover Protocol support
- CONFIG_CMD_XIMG Load part of Multi Image
- CONFIG_CMD_UUID * Generate random UUID or GUID string
-
- EXAMPLE: If you want all functions except of network
- support you can write:
-
- #include "config_cmd_all.h"
- #undef CONFIG_CMD_NET
-
- Other Commands:
- fdt (flattened device tree) command: CONFIG_OF_LIBFDT
-
- Note: Don't enable the "icache" and "dcache" commands
- (configuration option CONFIG_CMD_CACHE) unless you know
- what you (and your U-Boot users) are doing. Data
- cache cannot be enabled on systems like the
- 8xx (where accesses to the IMMR region must be
- uncached), and it cannot be disabled on all other
- systems where we (mis-) use the data cache to hold an
- initial stack and some data.
-
-
- XXX - this list needs to get updated!
-
- Removal of commands
If no commands are needed to boot, you can disable
CONFIG_CMDLINE to remove them. In this case, the command line
binary in its image. This device tree file should be in the
board directory and called <soc>-<board>.dts. The binary file
is then picked up in board_init_f() and made available through
- the global data structure as gd->blob.
+ the global data structure as gd->fdt_blob.
CONFIG_OF_SEPARATE
If this variable is defined, U-Boot will build a device tree
Allow generic access to the SPI bus on the Intel 8257x, for
example with the "sspi" command.
- CONFIG_CMD_E1000
- Management command for E1000 devices. When used on devices
- with SPI support you can reprogram the EEPROM from U-Boot.
-
CONFIG_EEPRO100
Support for Intel 82557/82559/82559ER chips.
Optional CONFIG_EEPRO100_SROM_WRITE enables EEPROM
control registers. This behavior won't affect the
correctnessof 10/100 link speed update.
- CONFIG_SMC911X
- Support for SMSC's LAN911x and LAN921x chips
-
- CONFIG_SMC911X_BASE
- Define this to hold the physical address
- of the device (I/O space)
-
- CONFIG_SMC911X_32_BIT
- Define this if data bus is 32 bits
-
- CONFIG_SMC911X_16_BIT
- Define this if data bus is 16 bits. If your processor
- automatically converts one 32 bit word to two 16 bit
- words you may also try CONFIG_SMC911X_32_BIT.
-
CONFIG_SH_ETHER
Support for Renesas on-chip Ethernet controller
to. Contemporary x86 systems usually map it at
0xfed40000.
- CONFIG_CMD_TPM
- Add tpm monitor functions.
- Requires CONFIG_TPM. If CONFIG_TPM_AUTH_SESSIONS is set, also
- provides monitor access to authorized functions.
-
CONFIG_TPM
Define this to enable the TPM support library which provides
functional interfaces to some TPM commands.
CONFIG_USB_FUNCTION_DFU
This enables the USB portion of the DFU USB class
- CONFIG_CMD_DFU
- This enables the command "dfu" which is used to have
- U-Boot create a DFU class device via USB. This command
- requires that the "dfu_alt_info" environment variable be
- set and define the alt settings to expose to the host.
-
CONFIG_DFU_MMC
This enables support for exposing (e)MMC devices via DFU.
entering dfuMANIFEST state. Host waits this timeout, before
sending again an USB request to the device.
-- USB Device Android Fastboot support:
- CONFIG_USB_FUNCTION_FASTBOOT
- This enables the USB part of the fastboot gadget
-
- CONFIG_CMD_FASTBOOT
- This enables the command "fastboot" which enables the Android
- fastboot mode for the platform's USB device. Fastboot is a USB
- protocol for downloading images, flashing and device control
- used on Android devices.
- See doc/README.android-fastboot for more information.
-
- CONFIG_ANDROID_BOOT_IMAGE
- This enables support for booting images which use the Android
- image format header.
-
- CONFIG_FASTBOOT_BUF_ADDR
- The fastboot protocol requires a large memory buffer for
- downloads. Define this to the starting RAM address to use for
- downloaded images.
-
- CONFIG_FASTBOOT_BUF_SIZE
- The fastboot protocol requires a large memory buffer for
- downloads. This buffer should be as large as possible for a
- platform. Define this to the size available RAM for fastboot.
-
- CONFIG_FASTBOOT_FLASH
- The fastboot protocol includes a "flash" command for writing
- the downloaded image to a non-volatile storage device. Define
- this to enable the "fastboot flash" command.
-
- CONFIG_FASTBOOT_FLASH_MMC_DEV
- The fastboot "flash" command requires additional information
- regarding the non-volatile storage device. Define this to
- the eMMC device that fastboot should use to store the image.
-
- CONFIG_FASTBOOT_GPT_NAME
- The fastboot "flash" command supports writing the downloaded
- image to the Protective MBR and the Primary GUID Partition
- Table. (Additionally, this downloaded image is post-processed
- to generate and write the Backup GUID Partition Table.)
- This occurs when the specified "partition name" on the
- "fastboot flash" command line matches this value.
- The default is "gpt" if undefined.
-
- CONFIG_FASTBOOT_MBR_NAME
- The fastboot "flash" command supports writing the downloaded
- image to DOS MBR.
- This occurs when the "partition name" specified on the
- "fastboot flash" command line matches this value.
- If not defined the default value "mbr" is used.
-
- Journaling Flash filesystem support:
CONFIG_JFFS2_NAND
Define these for a default partition on a NAND device
this is instead controlled by the value of
/config/load-environment.
-- DataFlash Support:
- CONFIG_HAS_DATAFLASH
-
- Defining this option enables DataFlash features and
- allows to read/write in Dataflash via the standard
- commands cp, md...
-
- Serial Flash support
- CONFIG_CMD_SF
-
- Defining this option enables SPI flash commands
- 'sf probe/read/write/erase/update'.
-
- Usage requires an initial 'probe' to define the serial
+ Usage requires an initial 'sf probe' to define the serial
flash parameters, followed by read/write/erase/update
commands.
CONFIG_SF_DEFAULT_MODE (see include/spi.h)
CONFIG_SF_DEFAULT_SPEED in Hz
- CONFIG_CMD_SF_TEST
-
- Define this option to include a destructive SPI flash
- test ('sf test').
-
-- SystemACE Support:
CONFIG_SYSTEMACE
Adding this option adds support for Xilinx SystemACE
CONFIG_SYS_BOOTCOUNT_ADDR = i2c addr which is used for
the bootcounter.
CONFIG_BOOTCOUNT_ALEN = address len
+ CONFIG_BOOTCOUNT_EXT
+ enable support for the bootcounter in EXT filesystem
+ CONFIG_SYS_BOOTCOUNT_ADDR = RAM address used for read
+ and write.
+ CONFIG_SYS_BOOTCOUNT_EXT_INTERFACE = interface
+ CONFIG_SYS_BOOTCOUNT_EXT_DEVPART = device and part
+ CONFIG_SYS_BOOTCOUNT_EXT_NAME = filename
- Show boot progress:
CONFIG_SHOW_BOOT_PROGRESS
Define this if you need to first read the OOB and then the
data. This is used, for example, on davinci platforms.
- CONFIG_SPL_OMAP3_ID_NAND
- Support for an OMAP3-specific set of functions to return the
- ID and MFR of the first attached NAND chip, if present.
-
CONFIG_SPL_RAM_DEVICE
Support for running image already present in ram, in SPL binary
Please note that the environment is read-only until the monitor
has been relocated to RAM and a RAM copy of the environment has been
-created; also, when using EEPROM you will have to use getenv_f()
+created; also, when using EEPROM you will have to use env_get_f()
until then to read environment variables.
The environment is protected by a CRC32 checksum. Before the monitor
Please see http://www.denx.de/wiki/U-Boot/Patches for details.
Patches shall be sent to the u-boot mailing list <u-boot@lists.denx.de>;
-see http://lists.denx.de/mailman/listinfo/u-boot
+see https://lists.denx.de/listinfo/u-boot
When you send a patch, please include the following information with
it: