/s3c24x0 Files specific to Samsung S3C24X0 CPUs
/arm926ejs Files specific to ARM 926 CPUs
/arm1136 Files specific to ARM 1136 CPUs
- /ixp Files specific to Intel XScale IXP CPUs
/pxa Files specific to Intel XScale PXA CPUs
/sa1100 Files specific to Intel StrongARM SA1100 CPUs
/lib Architecture specific library files
In this mode, a single differential clock is used to supply
clocks to the sysclock, ddrclock and usbclock.
+ CONFIG_SYS_CPC_REINIT_F
+ This CONFIG is defined when the CPC is configured as SRAM at the
+ time of U-boot entry and is required to be re-initialized.
+
+ CONFIG_DEEP_SLEEP
+ Inidcates this SoC supports deep sleep feature. If deep sleep is
+ supported, core will start to execute uboot when wakes up.
+
- Generic CPU options:
CONFIG_SYS_BIG_ENDIAN, CONFIG_SYS_LITTLE_ENDIAN
CONFIG_SYS_FSL_DDRC_GEN3
Freescale DDR3 controller.
+ CONFIG_SYS_FSL_DDRC_GEN4
+ Freescale DDR4 controller.
+
CONFIG_SYS_FSL_DDRC_ARM_GEN3
Freescale DDR3 controller for ARM-based SoCs.
CONFIG_SYS_FSL_DDR3
Board config to use DDR3. It can be enabled for SoCs with
- Freescale DDR3 controllers.
+ Freescale DDR3 or DDR3L controllers.
+
+ CONFIG_SYS_FSL_DDR3L
+ Board config to use DDR3L. It can be enabled for SoCs with
+ DDR3L controllers.
+
+ CONFIG_SYS_FSL_DDR4
+ Board config to use DDR4. It can be enabled for SoCs with
+ DDR4 controllers.
+
+ CONFIG_SYS_FSL_IFC_BE
+ Defines the IFC controller register space as Big Endian
+
+ CONFIG_SYS_FSL_IFC_LE
+ Defines the IFC controller register space as Little Endian
+
+ CONFIG_SYS_FSL_PBL_PBI
+ It enables addition of RCW (Power on reset configuration) in built image.
+ Please refer doc/README.pblimage for more details
+
+ CONFIG_SYS_FSL_PBL_RCW
+ It adds PBI(pre-boot instructions) commands in u-boot build image.
+ PBI commands can be used to configure SoC before it starts the execution.
+ Please refer doc/README.pblimage for more details
+
+ CONFIG_SPL_FSL_PBL
+ It adds a target to create boot binary having SPL binary in PBI format
+ concatenated with u-boot binary.
+
+ CONFIG_SYS_FSL_DDR_BE
+ Defines the DDR controller register space as Big Endian
+
+ CONFIG_SYS_FSL_DDR_LE
+ Defines the DDR controller register space as Little Endian
+
+ CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY
+ Physical address from the view of DDR controllers. It is the
+ same as CONFIG_SYS_DDR_SDRAM_BASE for all Power SoCs. But
+ it could be different for ARM SoCs.
+
+ CONFIG_SYS_FSL_DDR_INTLV_256B
+ DDR controller interleaving on 256-byte. This is a special
+ interleaving mode, handled by Dickens for Freescale layerscape
+ SoCs with ARM core.
- Intel Monahans options:
CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
CONFIG_ARM_ERRATA_742230
CONFIG_ARM_ERRATA_743622
CONFIG_ARM_ERRATA_751472
+ CONFIG_ARM_ERRATA_794072
+ CONFIG_ARM_ERRATA_761320
If set, the workarounds for these ARM errata are applied early
during U-Boot startup. Note that these options force the
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_BEDBUG * Include BedBug Debugger
CONFIG_CMD_BSP * Board specific commands
CONFIG_CMD_BOOTD bootd
CONFIG_CMD_CACHE * icache, dcache
+ CONFIG_CMD_CLK * clock command support
CONFIG_CMD_CONSOLE coninfo
CONFIG_CMD_CRC32 * crc32
CONFIG_CMD_DATE * support for RTC, date/time...
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_SAVEENV saveenv
CONFIG_CMD_FDC * Floppy Disk Support
CONFIG_CMD_FAT * FAT command support
- CONFIG_CMD_FDOS * Dos diskette Support
CONFIG_CMD_FLASH flinfo, erase, protect
CONFIG_CMD_FPGA FPGA device initialization support
CONFIG_CMD_FUSE * Device fuse support
CONFIG_CMD_CDP * Cisco Discover Protocol support
CONFIG_CMD_MFSL * Microblaze FSL 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:
this to the maximum filesize (in bytes) for the buffer.
Default is 4 MiB if undefined.
+ DFU_DEFAULT_POLL_TIMEOUT
+ Poll timeout [ms], is the timeout a device can send to the
+ host. The host must wait for this timeout before sending
+ a subsequent DFU_GET_STATUS request to the device.
+
+ DFU_MANIFEST_POLL_TIMEOUT
+ Poll timeout [ms], which the device sends to the host when
+ entering dfuMANIFEST state. Host waits this timeout, before
+ sending again an USB request to the device.
+
- Journaling Flash filesystem support:
CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
CONFIG_JFFS2_NAND_DEV
If this option is set, then U-Boot will prevent the environment
variable "splashimage" from being set to a problematic address
- (see README.displaying-bmps and README.arm-unaligned-accesses).
+ (see README.displaying-bmps).
This option is useful for targets where, due to alignment
restrictions, an improperly aligned BMP image will cause a data
abort. If you think you will not have problems with unaligned
CONFIG_RSA
This enables the RSA algorithm used for FIT image verification
- in U-Boot. See doc/uImage/signature for more information.
+ in U-Boot. See doc/uImage.FIT/signature.txt for more information.
The signing part is build into mkimage regardless of this
option.
+- bootcount support:
+ CONFIG_BOOTCOUNT_LIMIT
+
+ This enables the bootcounter support, see:
+ http://www.denx.de/wiki/DULG/UBootBootCountLimit
+
+ CONFIG_AT91SAM9XE
+ enable special bootcounter support on at91sam9xe based boards.
+ CONFIG_BLACKFIN
+ enable special bootcounter support on blackfin based boards.
+ CONFIG_SOC_DA8XX
+ enable special bootcounter support on da850 based boards.
+ CONFIG_BOOTCOUNT_RAM
+ enable support for the bootcounter in RAM
+ CONFIG_BOOTCOUNT_I2C
+ enable support for the bootcounter on an i2c (like RTC) device.
+ CONFIG_SYS_I2C_RTC_ADDR = i2c chip address
+ CONFIG_SYS_BOOTCOUNT_ADDR = i2c addr which is used for
+ the bootcounter.
+ CONFIG_BOOTCOUNT_ALEN = address len
- Show boot progress:
CONFIG_SHOW_BOOT_PROGRESS
continuing (the hardware starts execution after just
loading the first page rather than the full 4K).
+ CONFIG_SPL_SKIP_RELOCATE
+ Avoid SPL relocation
+
CONFIG_SPL_NAND_BASE
Include nand_base.c in the SPL. Requires
CONFIG_SPL_NAND_DRIVERS.
Configuration Settings:
-----------------------
+- CONFIG_SYS_SUPPORT_64BIT_DATA: Defined automatically if compiled as 64-bit.
+ Optionally it can be defined to support 64-bit memory commands.
+
- CONFIG_SYS_LONGHELP: Defined when you want long help messages included;
undefine this when you're short of memory.
its config.mk file). If you find problems enabling this option on
your board please report the problem and send patches!
-- CONFIG_SYS_SYM_OFFSETS
- This is set by architectures that use offsets for link symbols
- instead of absolute values. So bss_start is obtained using an
- offset _bss_start_ofs from CONFIG_SYS_TEXT_BASE, rather than
- directly. You should not need to touch this setting.
-
- CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC (OMAP only)
This is set by OMAP boards for the max time that reset should
be asserted. See doc/README.omap-reset-time for details on how
are used to identify the storage device (NOR flash, SPI, etc) and the address
within that device.
-- CONFIG_SYS_QE_FMAN_FW_ADDR
- The address in the storage device where the firmware is located. The
+- CONFIG_SYS_FMAN_FW_ADDR
+ The address in the storage device where the FMAN microcode is located. The
+ meaning of this address depends on which CONFIG_SYS_QE_FW_IN_xxx macro
+ is also specified.
+
+- CONFIG_SYS_QE_FW_ADDR
+ The address in the storage device where the QE microcode is located. The
meaning of this address depends on which CONFIG_SYS_QE_FW_IN_xxx macro
is also specified.