Define this to use i/o functions instead of macros
(some hardware wont work with macros)
- CONFIG_DRIVER_TI_EMAC
- Support for davinci emac
-
CONFIG_SYS_DAVINCI_EMAC_PHY_COUNT
Define this if you have more then 3 PHYs.
If defined, don't allow the -f switch to env set override variable
access flags.
-- CONFIG_USE_STDINT
- If stdint.h is available with your toolchain you can define this
- option to enable it. You can provide option 'USE_STDINT=1' when
- building U-Boot to enable this.
-
The following definitions that deal with the placement and management
of environment data (variable area); in general, we support the
following configurations:
regular expression. This allows multiple variables to be connected to
the same callback without explicitly listing them all out.
+The signature of the callback functions is:
+
+ int callback(const char *name, const char *value, enum env_op op, int flags)
+
+* name - changed environment variable
+* value - new value of the environment variable
+* op - operation (create, overwrite, or delete)
+* flags - attributes of the environment variable change, see flags H_* in
+ include/search.h
+
+The return value is 0 if the variable change is accepted and 1 otherwise.
Command Line Parsing:
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