CONFIG_SYS_FSL_OTHER_DDR_NUM_CTRLS
Number of controllers used for other than main memory.
+ CONFIG_SYS_FSL_HAS_DP_DDR
+ Defines the SoC has DP-DDR used for DPAA.
+
CONFIG_SYS_FSL_SEC_BE
Defines the SEC controller register space as Big Endian
CONFIG_ARM_ERRATA_742230
CONFIG_ARM_ERRATA_743622
CONFIG_ARM_ERRATA_751472
- CONFIG_ARM_ERRATA_794072
CONFIG_ARM_ERRATA_761320
+ CONFIG_ARM_ERRATA_773022
+ CONFIG_ARM_ERRATA_774769
+ CONFIG_ARM_ERRATA_794072
If set, the workarounds for these ARM errata are applied early
during U-Boot startup. Note that these options force the
CONFIG_ARM_ERRATA_454179
CONFIG_ARM_ERRATA_621766
CONFIG_ARM_ERRATA_798870
+ CONFIG_ARM_ERRATA_801819
- Tegra SoC options:
CONFIG_TEGRA_SUPPORT_NON_SECURE
- vxWorks boot parameters:
bootvx constructs a valid bootline using the following
- environments variables: bootfile, ipaddr, serverip, hostname.
+ environments variables: bootdev, bootfile, ipaddr, netmask,
+ serverip, gatewayip, hostname, othbootargs.
It loads the vxWorks image pointed bootfile.
- CONFIG_SYS_VXWORKS_BOOT_DEVICE - The vxworks device name
- CONFIG_SYS_VXWORKS_MAC_PTR - Ethernet 6 byte MA -address
- CONFIG_SYS_VXWORKS_SERVERNAME - Name of the server
- CONFIG_SYS_VXWORKS_BOOT_ADDR - Address of boot parameters
-
- CONFIG_SYS_VXWORKS_ADD_PARAMS
-
- Add it at the end of the bootline. E.g "u=username pw=secret"
-
Note: If a "bootargs" environment is defined, it will overwride
the defaults discussed just above.
define this to a list of base addresses for each (supported)
port. See e.g. include/configs/versatile.h
- CONFIG_PL011_SERIAL_RLCR
-
- Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500)
- have separate receive and transmit line control registers. Set
- this variable to initialize the extra register.
-
- CONFIG_PL011_SERIAL_FLUSH_ON_INIT
-
- On some platforms (e.g. U8500) U-Boot is loaded by a second stage
- boot loader that has already initialized the UART. Define this
- variable to flush the UART at init time.
-
CONFIG_SERIAL_HW_FLOW_CONTROL
Define this variable to enable hw flow control in serial driver.
(0-5, cf. cfb_console.c)
VIDEO_FB_ADRS framebuffer address
VIDEO_KBD_INIT_FCT keyboard int fct
- (i.e. i8042_kbd_init())
+ (i.e. rx51_kp_init())
VIDEO_TSTC_FCT test char fct
- (i.e. i8042_tstc)
+ (i.e. rx51_kp_tstc)
VIDEO_GETC_FCT get char fct
- (i.e. i8042_getc)
- CONFIG_CONSOLE_CURSOR cursor drawing on/off
- (requires blink timer
- cf. i8042.c)
- CONFIG_SYS_CONSOLE_BLINK_COUNT blink interval (cf. i8042.c)
- CONFIG_CONSOLE_TIME display time/date info in
- upper right corner
- (requires CONFIG_CMD_DATE)
+ (i.e. rx51_kp_getc)
CONFIG_VIDEO_LOGO display Linux logo in
upper left corner
CONFIG_VIDEO_BMP_LOGO use bmp_logo.h instead of
bytes are output before the console is initialised, the
earlier bytes are discarded.
+ Note that when printing the buffer a copy is made on the
+ stack so CONFIG_PRE_CON_BUF_SZ must fit on the stack.
+
'Sane' compilers will generate smaller code if
CONFIG_PRE_CON_BUF_SZ is a power of 2
CONFIG_AUTOBOOT_PROMPT
CONFIG_AUTOBOOT_DELAY_STR
CONFIG_AUTOBOOT_STOP_STR
- CONFIG_AUTOBOOT_DELAY_STR2
- CONFIG_AUTOBOOT_STOP_STR2
CONFIG_ZERO_BOOTDELAY_CHECK
CONFIG_RESET_TO_RETRY
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 using <config_cmd_default.h>
- and augmenting with additional #define's
- for wanted commands.
+ commands, or adding #define's for wanted commands.
The default command configuration includes all commands
except those marked below with a "*".
Management command for E1000 devices. When used on devices
with SPI support you can reprogram the EEPROM from U-Boot.
- CONFIG_E1000_FALLBACK_MAC
- default MAC for empty EEPROM after production.
-
CONFIG_EEPRO100
Support for Intel 82557/82559/82559ER chips.
Optional CONFIG_EEPRO100_SROM_WRITE enables EEPROM
CONFIG_TPM
Support TPM devices.
- CONFIG_TPM_TIS_I2C
- Support for i2c bus TPM devices. Only one device
+ CONFIG_TPM_TIS_INFINEON
+ Support for Infineon i2c bus TPM devices. Only one device
per system is supported at this time.
- CONFIG_TPM_TIS_I2C_BUS_NUMBER
- Define the the i2c bus number for the TPM device
-
- CONFIG_TPM_TIS_I2C_SLAVE_ADDRESS
- Define the TPM's address on the i2c bus
-
CONFIG_TPM_TIS_I2C_BURST_LIMITATION
Define the burst count bytes upper limit
key for the Replay Protection Memory Block partition in eMMC.
- USB Device Firmware Update (DFU) class support:
- CONFIG_DFU_FUNCTION
+ CONFIG_USB_FUNCTION_DFU
This enables the USB portion of the DFU USB class
CONFIG_CMD_DFU
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
This enables support for booting images which use the Android
image format header.
- CONFIG_USB_FASTBOOT_BUF_ADDR
+ 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_USB_FASTBOOT_BUF_SIZE
+ 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.
a default value of 65536 will be defined.
- Keyboard Support:
- CONFIG_ISA_KEYBOARD
-
- Define this to enable standard (PC-Style) keyboard
- support
+ See Kconfig help for available keyboard drivers.
- CONFIG_I8042_KBD
- Standard PC keyboard driver with US (is default) and
- GERMAN key layout (switch via environment 'keymap=de') support.
- Export function i8042_kbd_init, i8042_tstc and i8042_getc
- for cfb_console. Supports cursor blinking.
+ CONFIG_KEYBOARD
- CONFIG_CROS_EC_KEYB
- Enables a Chrome OS keyboard using the CROS_EC interface.
- This uses CROS_EC to communicate with a second microcontroller
- which provides key scans on request.
+ Define this to enable a custom keyboard support.
+ This simply calls drv_keyboard_init() which must be
+ defined in your board-specific files. This option is deprecated
+ and is only used by novena. For new boards, use driver model
+ instead.
- Video support:
CONFIG_VIDEO
boot. See the documentation file README.video for a
description of this variable.
-
-- Keyboard Support:
- CONFIG_KEYBOARD
-
- Define this to enable a custom keyboard support.
- This simply calls drv_keyboard_init() which must be
- defined in your board-specific files.
- The only board using this so far is RBC823.
-
- LCD Support: CONFIG_LCD
Define this to enable LCD support (for output to LCD
Some PHY like Intel LXT971A need extra delay after
command issued before MII status register can be read
-- Ethernet address:
- CONFIG_ETHADDR
- CONFIG_ETH1ADDR
- CONFIG_ETH2ADDR
- CONFIG_ETH3ADDR
- CONFIG_ETH4ADDR
- CONFIG_ETH5ADDR
-
- Define a default value for Ethernet address to use
- for the respective Ethernet interface, in case this
- is not determined automatically.
-
- IP address:
CONFIG_IPADDR
- drivers/i2c/i2c_mxc.c
- activate this driver with CONFIG_SYS_I2C_MXC
+ - enable bus 1 with CONFIG_SYS_I2C_MXC_I2C1
+ - enable bus 2 with CONFIG_SYS_I2C_MXC_I2C2
+ - enable bus 3 with CONFIG_SYS_I2C_MXC_I2C3
+ - enable bus 4 with CONFIG_SYS_I2C_MXC_I2C4
- define speed for bus 1 with CONFIG_SYS_MXC_I2C1_SPEED
- define slave for bus 1 with CONFIG_SYS_MXC_I2C1_SLAVE
- define speed for bus 2 with CONFIG_SYS_MXC_I2C2_SPEED
- define slave for bus 2 with CONFIG_SYS_MXC_I2C2_SLAVE
- define speed for bus 3 with CONFIG_SYS_MXC_I2C3_SPEED
- define slave for bus 3 with CONFIG_SYS_MXC_I2C3_SLAVE
+ - define speed for bus 4 with CONFIG_SYS_MXC_I2C4_SPEED
+ - define slave for bus 4 with CONFIG_SYS_MXC_I2C4_SLAVE
If those defines are not set, default value is 100000
for speed, and 0 for slave.
- - enable bus 3 with CONFIG_SYS_I2C_MXC_I2C3
- - enable bus 4 with CONFIG_SYS_I2C_MXC_I2C4
- drivers/i2c/rcar_i2c.c:
- activate this driver with CONFIG_SYS_I2C_RCAR
- CONFIG_SYS_I2C_IHS_CH3 activate hardware channel 3
- CONFIG_SYS_I2C_IHS_SPEED_3 speed channel 3
- CONFIG_SYS_I2C_IHS_SLAVE_3 slave addr channel 3
+ - activate dual channel with CONFIG_SYS_I2C_IHS_DUAL
+ - CONFIG_SYS_I2C_IHS_SPEED_0_1 speed channel 0_1
+ - CONFIG_SYS_I2C_IHS_SLAVE_0_1 slave addr channel 0_1
+ - CONFIG_SYS_I2C_IHS_SPEED_1_1 speed channel 1_1
+ - CONFIG_SYS_I2C_IHS_SLAVE_1_1 slave addr channel 1_1
+ - CONFIG_SYS_I2C_IHS_SPEED_2_1 speed channel 2_1
+ - CONFIG_SYS_I2C_IHS_SLAVE_2_1 slave addr channel 2_1
+ - CONFIG_SYS_I2C_IHS_SPEED_3_1 speed channel 3_1
+ - CONFIG_SYS_I2C_IHS_SLAVE_3_1 slave addr channel 3_1
additional defines:
Enables the driver for SPI controller on SuperH. Currently
only SH7757 is supported.
- CONFIG_SPI_X
-
- Enables extended (16-bit) SPI EEPROM addressing.
- (symmetrical to CONFIG_I2C_X)
-
CONFIG_SOFT_SPI
Enables a software (bit-bang) SPI driver rather than
completely disabled. Anybody can change or delete
these parameters.
- Alternatively, if you #define _both_ CONFIG_ETHADDR
- _and_ CONFIG_OVERWRITE_ETHADDR_ONCE, a default
+ Alternatively, if you define _both_ an ethaddr in the
+ default env _and_ CONFIG_OVERWRITE_ETHADDR_ONCE, a default
Ethernet address is installed in the environment,
which can be changed exactly ONCE by the user. [The
serial# is unaffected by this, i. e. it remains
this is instead controlled by the value of
/config/load-environment.
+- Parallel Flash support:
+ CONFIG_SYS_NO_FLASH
+
+ Traditionally U-boot was run on systems with parallel NOR
+ flash. This option is used to disable support for parallel NOR
+ flash. This option should be defined if the board does not have
+ parallel flash.
+
+ If this option is not defined one of the generic flash drivers
+ (e.g. CONFIG_FLASH_CFI_DRIVER or CONFIG_ST_SMI) must be
+ selected or the board must provide an implementation of the
+ flash API (see include/flash.h).
+
- DataFlash Support:
CONFIG_HAS_DATAFLASH
Define this option to include a destructive SPI flash
test ('sf test').
- CONFIG_SPI_FLASH_BAR Ban/Extended Addr Reg
-
- Define this option to use the Bank addr/Extended addr
- support on SPI flashes which has size > 16Mbytes.
-
CONFIG_SF_DUAL_FLASH Dual flash memories
Define this option to use dual flash support where two flash
without a fastmap.
default: 0
+ CONFIG_MTD_UBI_FM_DEBUG
+ Enable UBI fastmap debug
+ default: 0
+
- UBIFS support
CONFIG_CMD_UBIFS
CONFIG_SYS_SPL_MALLOC_START
Starting address of the malloc pool used in SPL.
+ When this option is set the full malloc is used in SPL and
+ it is set up by spl_init() and before that, the simple malloc()
+ can be used if CONFIG_SYS_MALLOC_F is defined.
CONFIG_SYS_SPL_MALLOC_SIZE
The size of the malloc pool used in SPL.
Scratch address used by the alternate memory test
You only need to set this if address zero isn't writeable
-- CONFIG_SYS_MEM_TOP_HIDE (PPC only):
+- CONFIG_SYS_MEM_RESERVE_SECURE
+ If defined, the size of CONFIG_SYS_MEM_RESERVE_SECURE memory
+ is substracted from total RAM and won't be reported to OS.
+ This memory can be used as secure memory. A variable
+ gd->secure_ram is used to track the location. In systems
+ the RAM base is not zero, or RAM is divided into banks,
+ this variable needs to be recalcuated to get the address.
+
+- CONFIG_SYS_MEM_TOP_HIDE:
If CONFIG_SYS_MEM_TOP_HIDE is defined in the board config header,
this specified memory area will get subtracted from the top
(end) of RAM and won't get "touched" at all by U-Boot. By
list, simply add an entry for the same variable name to the
".flags" variable.
+ If CONFIG_REGEX is defined, the variable_name above is evaluated as a
+ regular expression. This allows multiple variables to define the same
+ flags without explicitly listing them for each variable.
+
- CONFIG_ENV_ACCESS_IGNORE_FORCE
If defined, don't allow the -f switch to env set override variable
access flags.
normal addressable memory via the LBC. CONFIG_SYS_LS_MC_FW_ADDR is the
virtual address in NOR flash.
+Freescale Layerscape Debug Server Support:
+-------------------------------------------
+The Freescale Layerscape Debug Server Support supports the loading of
+"Debug Server firmware" and triggering SP boot-rom.
+This firmware often needs to be loaded during U-Boot booting.
+
+- CONFIG_FSL_DEBUG_SERVER
+ Enable the Debug Server for Layerscape SoCs.
+
+- CONFIG_SYS_DEBUG_SERVER_DRAM_BLOCK_MIN_SIZE
+ Define minimum DDR size required for debug server image
+
+- CONFIG_SYS_MC_RSV_MEM_ALIGN
+ Define alignment of reserved memory MC requires
+
+Reproducible builds
+-------------------
+
+In order to achieve reproducible builds, timestamps used in the U-Boot build
+process have to be set to a fixed value.
+
+This is done using the SOURCE_DATE_EPOCH environment variable.
+SOURCE_DATE_EPOCH is to be set on the build host's shell, not as a configuration
+option for U-Boot or an environment variable in U-Boot.
+
+SOURCE_DATE_EPOCH should be set to a number of seconds since the epoch, in UTC.
+
Building the Software:
======================
unset, then it will be made silent if the U-Boot console
is silent.
- tftpsrcport - If this is set, the value is used for TFTP's
+ tftpsrcp - If this is set, the value is used for TFTP's
UDP source port.
- tftpdstport - If this is set, the value is used for TFTP's UDP
+ tftpdstp - If this is set, the value is used for TFTP's UDP
destination port instead of the Well Know Port 69.
tftpblocksize - Block size to use for TFTP transfers; if not set,
faster in networks with high packet loss rates or
with unreliable TFTP servers.
+ tftptimeoutcountmax - maximum count of TFTP timeouts (no
+ unit, minimum value = 0). Defines how many timeouts
+ can happen during a single file transfer before that
+ transfer is aborted. The default is 10, and 0 means
+ 'no timeouts allowed'. Increasing this value may help
+ downloads succeed with high packet loss rates, or with
+ unreliable TFTP servers or client hardware.
+
vlan - When set to a value < 4095 the traffic over
Ethernet is encapsulated/received over 802.1q
VLAN tagged frames.
CONFIG_ENV_CALLBACK_LIST_DEFAULT to a list (string) to define the
".callbacks" environment variable in the default or embedded environment.
+If CONFIG_REGEX is defined, the variable_name above is evaluated as a
+regular expression. This allows multiple variables to be connected to
+the same callback without explicitly listing them all out.
+
Command Line Parsing:
=====================
warning is printed.
o If neither SROM nor the environment contain a MAC address, an error
- is raised.
+ is raised. If CONFIG_NET_RANDOM_ETHADDR is defined, then in this case
+ a random, locally-assigned MAC is used.
If Ethernet drivers implement the 'write_hwaddr' function, valid MAC addresses
will be programmed into hardware as part of the initialization process. This
projects / u-boot.git / blobdiff