must be defined, to setup the maximum idle timeout for
the SMC.
-- Interrupt driven serial port input:
- CONFIG_SERIAL_SOFTWARE_FIFO
-
- PPC405GP only.
- Use an interrupt handler for receiving data on the
- serial port. It also enables using hardware handshake
- (RTS/CTS) and UART's built-in FIFO. Set the number of
- bytes the interrupt driven input buffer should have.
-
- Leave undefined to disable this feature, including
- disable the buffer and hardware handshake.
-
-- Console UART Number:
- CONFIG_UART1_CONSOLE
-
- AMCC PPC4xx only.
- If defined internal UART1 (and not UART0) is used
- as default U-Boot console.
-
- Boot Delay: CONFIG_BOOTDELAY - in seconds
Delay before automatically booting the default image;
set to -1 to disable autoboot.
ETX094, IVMS8, IVML24, SPD8xx, TQM8xxL,
HERMES, IP860, RPXlite, LWMON, LANTEC,
- PCU_E, FLAGADM, TQM8260
+ FLAGADM, TQM8260
- Error Recovery:
CONFIG_PANIC_HANG
on high Ethernet traffic.
Defaults to 4 if not defined.
+- CONFIG_ENV_MAX_ENTRIES
+
+ Maximum number of entries in the hash table that is used
+ internally to store the environment settings. The default
+ setting is supposed to be generous and should work in most
+ cases. This setting can be used to tune behaviour; see
+ lib/hashtable.c for details.
+
The following definitions that deal with the placement and management
of environment data (variable area); in general, we support the
following configurations:
- CONFIG_ENV_SIZE:
These two #defines specify the offset and size of the environment
- area within the first NAND device.
+ area within the first NAND device. CONFIG_ENV_OFFSET must be
+ aligned to an erase block boundary.
- - CONFIG_ENV_OFFSET_REDUND
+ - CONFIG_ENV_OFFSET_REDUND (optional):
This setting describes a second storage area of CONFIG_ENV_SIZE
- size used to hold a redundant copy of the environment data,
- so that there is a valid backup copy in case there is a
- power failure during a "saveenv" operation.
-
- Note: CONFIG_ENV_OFFSET and CONFIG_ENV_OFFSET_REDUND must be aligned
- to a block boundary, and CONFIG_ENV_SIZE must be a multiple of
- the NAND devices block size.
+ size used to hold a redundant copy of the environment data, so
+ that there is a valid backup copy in case there is a power failure
+ during a "saveenv" operation. CONFIG_ENV_OFFSET_RENDUND must be
+ aligned to an erase block boundary.
+
+ - CONFIG_ENV_RANGE (optional):
+
+ Specifies the length of the region in which the environment
+ can be written. This should be a multiple of the NAND device's
+ block size. Specifying a range with more erase blocks than
+ are needed to hold CONFIG_ENV_SIZE allows bad blocks within
+ the range to be avoided.
+
+ - CONFIG_ENV_OFFSET_OOB (optional):
+
+ Enables support for dynamically retrieving the offset of the
+ environment from block zero's out-of-band data. The
+ "nand env.oob" command can be used to record this offset.
+ Currently, CONFIG_ENV_OFFSET_REDUND is not supported when
+ using CONFIG_ENV_OFFSET_OOB.
- CONFIG_NAND_ENV_DST