Roll CRC16-CCITT into the hash infrastructure
The CRC16-CCITT checksum function is useful for space-constrained
applications (such as obtaining a checksum across a 2KBit or 4KBit
EEPROM) in boot applications. It has not been accessible from boot
scripts until now (due to not having a dedicated command and not being
supported by the hash infrstructure) limiting its applicability
outside of custom commands.
This adds the CRC16-CCITT (poly 0x1021, init 0x0) algorithm to the
list of available hashes and adds a new crc16_ccitt_wd_buf() to make
this possible.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[trini: Fix building crc16.o for SPL/TPL]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/lib/Makefile b/lib/Makefile
index 8321355..a6dd928 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -76,6 +76,7 @@
ifdef CONFIG_SPL_BUILD
obj-$(CONFIG_SPL_YMODEM_SUPPORT) += crc16.o
+obj-$(CONFIG_$(SPL_TPL_)HASH_SUPPORT) += crc16.o
obj-$(CONFIG_SPL_NET_SUPPORT) += net_utils.o
endif
obj-$(CONFIG_ADDR_MAP) += addr_map.o