configs: Re-sync CONFIG_USB_MUSB_HOST

[people/ms/u-boot.git] / README

diff --git a/README b/README
index b2eee19773702f002860b133007b65b937d5fa5c..88ff837d7c984c32fa715c95d0145289eab41b37 100644 (file)
--- a/README
+++ b/README
@@ -1108,6 +1108,14 @@ The following options need to be configured:
 
                XXX - this list needs to get updated!
 
+- Removal of commands
+               If no commands are needed to boot, you can disable
+               CONFIG_CMDLINE to remove them. In this case, the command line
+               will not be available, and when U-Boot wants to execute the
+               boot command (on start-up) it will call board_run_command()
+               instead. This can reduce image size significantly for very
+               simple boot procedures.
+
 - Regular expression support:
                CONFIG_REGEX
                If this variable is defined, U-Boot is linked against
@@ -1794,7 +1802,7 @@ CBFS (Coreboot Filesystem) support
 
                The DIU driver will look for the 'video-mode' environment
                variable, and if defined, enable the DIU as a console during
-               boot.  See the documentation file README.video for a
+               boot.  See the documentation file doc/README.video for a
                description of this variable.
 
 - LCD Support: CONFIG_LCD
@@ -1908,7 +1916,7 @@ CBFS (Coreboot Filesystem) support
 
                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).
+               (see doc/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
@@ -3093,20 +3101,6 @@ CBFS (Coreboot Filesystem) support
                will set it back to normal.  This command currently
                supports i.MX53 and i.MX6.
 
-- Signing support:
-               CONFIG_RSA
-
-               This enables the RSA algorithm used for FIT image verification
-               in U-Boot. See doc/uImage.FIT/signature.txt for more information.
-
-               The Modular Exponentiation algorithm in RSA is implemented using
-               driver model. So CONFIG_DM needs to be enabled by default for this
-               library to function.
-
-               The signing part is build into mkimage regardless of this
-               option. The software based modular exponentiation is built into
-               mkimage irrespective of this option.
-
 - bootcount support:
                CONFIG_BOOTCOUNT_LIMIT
 
@@ -3306,33 +3300,14 @@ FIT uImage format:
                enabled per default for backward compatibility.
 
 - FIT image support:
-               CONFIG_FIT
-               Enable support for the FIT uImage format.
-
-               CONFIG_FIT_BEST_MATCH
-               When no configuration is explicitly selected, default to the
-               one whose fdt's compatibility field best matches that of
-               U-Boot itself. A match is considered "best" if it matches the
-               most specific compatibility entry of U-Boot's fdt's root node.
-               The order of entries in the configuration's fdt is ignored.
-
-               CONFIG_FIT_SIGNATURE
-               This option enables signature verification of FIT uImages,
-               using a hash signed and verified using RSA. If
-               CONFIG_SHA_PROG_HW_ACCEL is defined, i.e support for progressive
-               hashing is available using hardware, RSA library will use it.
-               See doc/uImage.FIT/signature.txt for more details.
-
-               WARNING: When relying on signed FIT images with required
-               signature check the legacy image format is default
-               disabled. If a board need legacy image format support
-               enable this through CONFIG_IMAGE_FORMAT_LEGACY
-
                CONFIG_FIT_DISABLE_SHA256
                Supporting SHA256 hashes has quite an impact on binary size.
                For constrained systems sha256 hash support can be disabled
                with this option.
 
+               TODO(sjg@chromium.org): Adjust this option to be positive,
+               and move it to Kconfig
+
 - Standalone program support:
                CONFIG_STANDALONE_LOAD_ADDR