uboot: integrate mkenvimage

This commit provides configuration options to automatically generate a
binary environment image for U-Boot.
Two options are available (and mandatory):
 * the location of a text file describing U-Boot environment.
 * the size of the environment.

[Peter: fix Config.in indentation + typo]
Signed-off-by: Arnaud Rébillout <rebillout@syscom.ch>
Acked-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

1 files changed, 23 insertions, 0 deletions

diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
index d22e23bd7..bc5ce19da 100644
--- a/boot/uboot/Config.in
+++ b/boot/uboot/Config.in
@@ -212,4 +212,27 @@ config BR2_TARGET_UBOOT_SPL_NAME
 	  u-boot build. For most platform it is u-boot-spl.bin
 	  but not always. It is MLO on OMAP for example.
 
+menuconfig BR2_TARGET_UBOOT_ENVIMAGE
+	bool "Environment image"
+	help
+	  Generate a valid binary environment image from a text file
+	  describing the key=value pairs of the environment.
+
+	  The environment image will be called uboot-env.bin.
+
+if BR2_TARGET_UBOOT_ENVIMAGE
+
+config BR2_TARGET_UBOOT_ENVIMAGE_SOURCE
+	string "Source file for environment"
+	help
+	  Text file describing the environment.
+
+config BR2_TARGET_UBOOT_ENVIMAGE_SIZE
+	string "Size of environment"
+	help
+	  Size of envronment, can be prefixed with 0x for hexadecimal
+	  values.
+
+endif # BR2_TARGET_UBOOT_ENVIMAGE
+
 endif # BR2_TARGET_UBOOT