MAINTAINERS: at91: update entry for at91 boards

[oweals/u-boot.git] / README

diff --git a/README b/README
index aee0f7371c423c8a48eb0546526be885bd410ac9..f7ed7eaae16c8460625a6b38727dfab3db7fdb9e 100644 (file)
--- a/README
+++ b/README
@@ -528,25 +528,6 @@ The following options need to be configured:
                pointer. This is needed for the temporary stack before
                relocation.
 
-               CONFIG_SYS_MIPS_CACHE_MODE
-
-               Cache operation mode for the MIPS CPU.
-               See also arch/mips/include/asm/mipsregs.h.
-               Possible values are:
-                       CONF_CM_CACHABLE_NO_WA
-                       CONF_CM_CACHABLE_WA
-                       CONF_CM_UNCACHED
-                       CONF_CM_CACHABLE_NONCOHERENT
-                       CONF_CM_CACHABLE_CE
-                       CONF_CM_CACHABLE_COW
-                       CONF_CM_CACHABLE_CUW
-                       CONF_CM_CACHABLE_ACCELERATED
-
-               CONFIG_SYS_XWAY_EBU_BOOTCFG
-
-               Special option for Lantiq XWAY SoCs for booting from NOR flash.
-               See also arch/mips/cpu/mips32/start.S.
-
                CONFIG_XWAY_SWAP_BYTES
 
                Enable compilation of tools/xway-swap-bytes needed for Lantiq
@@ -977,9 +958,6 @@ The following options need to be configured:
                        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.
 
@@ -3018,11 +2996,6 @@ Configuration Settings:
        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:
@@ -3943,6 +3916,17 @@ 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.
 
+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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