update to 2015.04-rc1

[karo-tx-uboot.git] / README

diff --git a/README b/README
index 4f8842d2926e9a75b2c513103041aeb07095f3a0..a435c8b2fa7ce054530002b7d5d8f20f197710ad 100644 (file)
--- a/README
+++ b/README
@@ -182,7 +182,6 @@ Directory Hierarchy:
     /lib               Architecture specific library files
   /powerpc             Files generic to PowerPC architecture
     /cpu               CPU specific files
-      /74xx_7xx                Files specific to Freescale MPC74xx and 7xx CPUs
       /mpc5xx          Files specific to Freescale MPC5xx CPUs
       /mpc5xxx         Files specific to Freescale MPC5xxx CPUs
       /mpc8xx          Files specific to Freescale MPC8xx CPUs
@@ -3188,8 +3187,13 @@ CBFS (Coreboot Filesystem) support
                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.
+               option. The software based modular exponentiation is built into
+               mkimage irrespective of this option.
 
 - bootcount support:
                CONFIG_BOOTCOUNT_LIMIT
@@ -5911,9 +5915,10 @@ option performs the converse operation of the mkimage's second form (the "-d"
 option). Given an image built by mkimage, the dumpimage extracts a "data file"
 from the image:
 
-       tools/dumpimage -i image -p position data_file
-         -i ==> extract from the 'image' a specific 'data_file', \
-          indexed by 'position'
+       tools/dumpimage -i image -T type -p position data_file
+         -i ==> extract from the 'image' a specific 'data_file'
+         -T ==> set image type to 'type'
+         -p ==> 'position' (starting at 0) of the 'data_file' inside the 'image'
 
 
 Installing a Linux Image: