From: Simon Glass <sjg@chromium.org>
Date: Tue, 6 Nov 2018 22:21:30 +0000 (-0700)
Subject: spl: lz4: Allow use of lz4 compression in SPL
X-Git-Url: http://git.dujemihanovic.xyz/?a=commitdiff_plain;h=048c6e895647c3337450405388bcd538f92e1e3d;p=u-boot.git

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 847e797a3a..0333ab172f 100644
--- a/lib/Kconfig
+++ b/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
diff --git a/lib/Makefile b/lib/Makefile
index fb6944128a..4d2e22027d 100644
--- a/lib/Makefile
+++ b/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/