CONFIG_AT91_HW_WDT_TIMEOUT
specify the timeout in seconds. default 2 seconds.
-- U-Boot Version:
- CONFIG_VERSION_VARIABLE
- 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.
-
- Real-Time Clock:
When CONFIG_CMD_DATE is selected, the type of the RTC
be at least 4MB.
- MII/PHY support:
- CONFIG_PHY_ADDR
-
- The address of PHY on MII bus.
-
CONFIG_PHY_CLOCK_FREQ (ppc4xx)
The clock frequency of the MII bus
the environment like the "source" command or the
boot command first.
- CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
-
- Define this in order to add variables describing certain
- run-time determined information about the hardware to the
- environment. These will be named board_name, board_rev.
-
CONFIG_DELAY_ENVIRONMENT
Normally the environment is loaded when the board is
A better solution is to properly configure the firewall,
but sometimes that is not allowed.
-- bootcount support:
- CONFIG_AT91SAM9XE
- enable special bootcounter support on at91sam9xe based boards.
- 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
- 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
kernel. Needed for UBI support.
- UBI support
- CONFIG_UBI_SILENCE_MSG
-
- Make the verbose messages from UBI stop printing. This leaves
- warnings and errors enabled.
-
-
CONFIG_MTD_UBI_WL_THRESHOLD
This parameter defines the maximum difference between the highest
erase counter value and the lowest erase counter value of eraseblocks
Enable UBI fastmap debug
default: 0
-- UBIFS support
- CONFIG_UBIFS_SILENCE_MSG
-
- Make the verbose messages from UBIFS stop printing. This leaves
- warnings and errors enabled.
-
- SPL framework
CONFIG_SPL
Enable building of SPL globally.
Begin and End addresses of the area used by the
simple memory test.
-- CONFIG_SYS_ALT_MEMTEST:
- Enable an alternate, more extensive memory test.
-
- CONFIG_SYS_MEMTEST_SCRATCH:
Scratch address used by the alternate memory test
You only need to set this if address zero isn't writeable
If defined, the x86 reset vector code is included. This is not
needed when U-Boot is running from Coreboot.
-- CONFIG_SPL_AM33XX_ENABLE_RTC32K_OSC:
- Enables the RTC32K OSC on AM33xx based plattforms
-
- CONFIG_SYS_NAND_NO_SUBPAGE_WRITE
Option to disable subpage write in NAND driver
driver that uses this: