ehci-pci: Prepare for usage of readl()/writel() accessors

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

diff --git a/Kconfig b/Kconfig
index 8e773b8a865e4018e54663d57b4bbd39382a89ea..bb80adacf45f00c4ee525e5239edf376a141b0e6 100644 (file)
--- a/Kconfig
+++ b/Kconfig
@@ -145,6 +145,7 @@ menu "Boot images"
 config FIT
        bool "Support Flattened Image Tree"
        select MD5
+       select SHA1
        help
          This option allows you to boot the new uImage structure,
          Flattened Image Tree.  FIT is formally a FDT, which can include
@@ -157,6 +158,20 @@ config FIT
 
 if FIT
 
+config FIT_ENABLE_SHA256_SUPPORT
+       bool "Support SHA256 checksum of FIT image contents"
+       select SHA256
+       default y
+       help
+         Enable this to support SHA256 checksum of FIT image contents. A
+         SHA256 checksum is a 256-bit (32-byte) hash value used to check that
+         the image contents have not been corrupted. SHA256 is recommended
+         for use in secure applications since (as at 2016) there is no known
+         feasible attack that could produce a 'collision' with differing
+         input data. Use this for the highest security. Note that only the
+         SHA256 variant is supported: SHA512 and others are not currently
+         supported in U-Boot.
+
 config FIT_SIGNATURE
        bool "Enable signature verification of FIT uImages"
        depends on DM
@@ -205,6 +220,8 @@ config FIT_IMAGE_POST_PROCESS
          injected into the FIT creation (i.e. the blobs would have been pre-
          processed before being added to the FIT image).
 
+if SPL
+
 config SPL_FIT
        bool "Support Flattened Image Tree within SPL"
        depends on SPL
@@ -259,6 +276,8 @@ config SPL_FIT_GENERATOR
          passed a list of supported device tree file stub names to
          include in the generated image.
 
+endif # SPL
+
 endif # FIT
 
 config OF_BOARD_SETUP