lib: Allow crc16 code to be dropped
This code is not necessarily needed in VPL, even if SPL uses it, so
adjust the rules to allow it to be dropped.
Do the same for the hash API.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/lib/Kconfig b/lib/Kconfig
index b27965f..1a683de 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -758,6 +758,16 @@
checksum with feedback to produce an 8-bit result. The code is small
and it does not require a lookup table (unlike CRC32).
+config CRC16
+ bool "Support CRC16"
+ default y
+ help
+ Enables CRC16 support. This is normally required. Two algorithms are
+ provided:
+
+ - CCITT, with a polynomical x^16 + x^12 + x^5 + 1
+ - standard, with polynomial x^16 + x^15 + x^2 + 1 (0x8005)
+
config SPL_CRC16
bool "Support CRC16 in SPL"
depends on SPL