Add compressed image support

This allows for creating a lzo compressed binary unsing the pbl.

Only copy the piggydata if needed.

Add CONFIG_PBL_FORCE_PIGGYDATA_COPY option
In some case we need to copy the PIGGYDATA as the link address
as example we run from SRAM and shutdown the SDRAM/DDR for
reconfiguration but most of the time we just need to copy the
executable code.

based on Sascha Hauer
Add compressed image support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 11 insertions, 1 deletions

diff --git a/common/Kconfig b/common/Kconfig
index 7b5a3077ea..828fc050c4 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -111,11 +111,20 @@ config PBL_IMAGE
 	bool "Pre-Bootloader image"
 	depends on HAVE_PBL_IMAGE
 
+config PBL_FORCE_PIGGYDATA_COPY
+	bool
+	help
+	  In some case we need to copy the PIGGYDATA as the link address
+	  as example we run from SRAM and shutdown the SDRAM/DDR for
+	  reconfiguration but most of the time we just need to copy the
+	  executable code.
+
 if PBL_IMAGE
 
 config IMAGE_COMPRESSION
-	bool "Compressed image"
+	bool
 	depends on HAVE_IMAGE_COMPRESSION
+	default y
 
 if IMAGE_COMPRESSION
 
@@ -511,6 +520,7 @@ config DEFAULT_ENVIRONMENT
 config DEFAULT_ENVIRONMENT_COMPRESSED
 	bool
 	depends on DEFAULT_ENVIRONMENT
+	depends on !IMAGE_COMPRESSION_LZO
 	default y if ZLIB
 	default y if BZLIB
 	default y if LZO_DECOMPRESS