[Buildroot] [PATCH v2] u-boot: add option to generate env image from default env

[Denis OSTERLAND <denis.osterland@diehl.com>]

Hi,

any objections here?

Regards Denis

Am Montag, den 12.11.2018, 11:17 +0100 schrieb Denis OSTERLAND:
> From: Denis Osterland <Denis.Osterland@diehl.com>
> 
> This patch adds support to extract compiled in default env
> via u-boots get_default_envs script and generate env image from it.
> 
> Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com>
> ---
> v1 -> v2: use compiled in env if sources list is empty,
> ??????????as suggested by Arnout Vandecappelle
> 
> ?boot/uboot/Config.in | 2 ++
> ?boot/uboot/uboot.mk??| 8 ++++----
> ?2 files changed, 6 insertions(+), 4 deletions(-)
> 
> diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in
> index ac6f8bc8c1..2e3a112874 100644
> --- a/boot/uboot/Config.in
> +++ b/boot/uboot/Config.in
> @@ -466,6 +466,8 @@ menuconfig BR2_TARGET_UBOOT_ENVIMAGE
> ?
> ?	??The environment image will be called uboot-env.bin.
> ?
> +	??Leave empty to generate image from compiled-in env.
> +
> ?if BR2_TARGET_UBOOT_ENVIMAGE
> ?
> ?config BR2_TARGET_UBOOT_ENVIMAGE_SOURCE
> diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk
> index cbdfee6ac3..693fe69508 100644
> --- a/boot/uboot/uboot.mk
> +++ b/boot/uboot/uboot.mk
> @@ -262,8 +262,11 @@ define UBOOT_BUILD_OMAP_IFT
> ?endef
> ?
> ?ifneq ($(BR2_TARGET_UBOOT_ENVIMAGE),)
> +UBOOT_GENERATE_ENV_FILE=$(call qstrip,$(BR2_TARGET_UBOOT_ENVIMAGE_SOURCE))
> ?define UBOOT_GENERATE_ENV_IMAGE
> -	cat $(call qstrip,$(BR2_TARGET_UBOOT_ENVIMAGE_SOURCE)) \
> +	$(if $(UBOOT_GENERATE_ENV_FILE), \
> +	cat $(UBOOT_GENERATE_ENV_FILE), \
> +	CROSS_COMPILE="$(TARGET_CROSS)" $(@D)/scripts/get_default_envs.sh $(@D)) \
> ?		>$(@D)/buildroot-env.txt
> ?	$(HOST_DIR)/bin/mkenvimage -s $(BR2_TARGET_UBOOT_ENVIMAGE_SIZE) \
> ?		$(if $(BR2_TARGET_UBOOT_ENVIMAGE_REDUNDANT),-r) \
> @@ -376,9 +379,6 @@ endef
> ?
> ?ifeq ($(BR2_TARGET_UBOOT_ENVIMAGE),y)
> ?ifeq ($(BR_BUILDING),y)
> -ifeq ($(call qstrip,$(BR2_TARGET_UBOOT_ENVIMAGE_SOURCE)),)
> -$(error Please define a source file for Uboot environment (BR2_TARGET_UBOOT_ENVIMAGE_SOURCE setting))
> -endif
> ?ifeq ($(call qstrip,$(BR2_TARGET_UBOOT_ENVIMAGE_SIZE)),)
> ?$(error Please provide Uboot environment size (BR2_TARGET_UBOOT_ENVIMAGE_SIZE setting))
> ?endif

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