spl: lz4: Allow use of lz4 compression in SPL
In some cases U-Boot is compressed and it is useful to be able to
decompress it in SPL. Add a Kconfig and Makefile change to allow this.
Note that this does not actually implement decompression.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/lib/Kconfig b/lib/Kconfig
index 847e797..0333ab1 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -301,6 +301,14 @@
help
This enables support for LZO compression algorithm.r
+config SPL_LZ4
+ bool "Enable LZ4 decompression support in SPL"
+ help
+ This enables support for tge LZ4 decompression algorithm in SPL. LZ4
+ is a lossless data compression algorithm that is focused on
+ fast compression and decompression speed. It belongs to the LZ77
+ family of byte-oriented compression schemes.
+
config SPL_LZO
bool "Enable LZO decompression support in SPL"
help
diff --git a/lib/Makefile b/lib/Makefile
index fb69441..4d2e220 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -38,7 +38,6 @@
obj-y += initcall.o
obj-$(CONFIG_LMB) += lmb.o
obj-y += ldiv.o
-obj-$(CONFIG_LZ4) += lz4_wrapper.o
obj-$(CONFIG_MD5) += md5.o
obj-y += net_utils.o
obj-$(CONFIG_PHYSMEM) += physmem.o
@@ -64,6 +63,7 @@
obj-$(CONFIG_$(SPL_)ZLIB) += zlib/
obj-$(CONFIG_$(SPL_)GZIP) += gunzip.o
obj-$(CONFIG_$(SPL_)LZO) += lzo/
+obj-$(CONFIG_$(SPL_)LZ4) += lz4_wrapper.o
obj-$(CONFIG_LIBAVB) += libavb/