hash: Use Kconfig to enable hashing in host tools and SPL
At present when building host tools, we force CONFIG_SHAxxx to be enabled
regardless of the board Kconfig setting. This is done in the image.h
header file.
For SPL we currently just assume the algorithm is desired if U-Boot proper
enables it.
Clean this up by adding new Kconfig options to enable hashing on the host,
relying on CONFIG_IS_ENABLED() to deal with the different builds.
Add new SPL Kconfigs for hardware-accelerated hashing, to maintain the
current settings.
This allows us to drop the image.h code and the I_WANT_MD5 hack.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
diff --git a/lib/Kconfig b/lib/Kconfig
index 7899e75..64765ac 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -438,6 +438,24 @@
The SHA384 algorithm produces a 384-bit (48-byte) hash value
(digest).
+config SPL_SHA_HW_ACCEL
+ bool "Enable hardware acceleration for SHA hash functions"
+ default y if SHA_HW_ACCEL
+ help
+ This option enables hardware acceleration for the SHA1 and SHA256
+ hashing algorithms. This affects the 'hash' command and also the
+ hash_lookup_algo() function.
+
+config SPL_SHA_PROG_HW_ACCEL
+ bool "Enable Progressive hashing support using hardware in SPL"
+ depends on SHA_PROG_HW_ACCEL
+ default y
+ help
+ This option enables hardware-acceleration for SHA progressive
+ hashing.
+ Data can be streamed in a block at a time and the hashing is
+ performed in hardware.
+
endif
if SHA_HW_ACCEL