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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>
Simon Glass 5 years ago
parent
commit
048c6e8956
2 changed files with 9 additions and 1 deletions
  1. 8 0
      lib/Kconfig
  2. 1 1
      lib/Makefile

+ 8 - 0
lib/Kconfig

@@ -301,6 +301,14 @@ config LZO
 	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

+ 1 - 1
lib/Makefile

@@ -38,7 +38,6 @@ obj-$(CONFIG_IMAGE_SPARSE) += image-sparse.o
 obj-y += initcall.o
 obj-$(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_SHA256) += sha256.o
 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/